TISP4070L3BJ [BOURNS]
BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS; 双向晶闸管过电压保护
| 型号： | TISP4070L3BJ |
| 厂家： | 
BOURNS ELECTRONIC SOLUTIONS |
| 描述： | BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS |
| 文件： | 总15页 (文件大小：325K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TISP4070L3BJ, TISP4350L3BJ
T
N
A
I
L
P
S
M
N
E
O
O
I
L
C
B
S
S
A
R
BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS
H
L
E
I
o
V
A
V
*R
A
TISP4xxxL3BJ Overvoltage Protector Series
MODEM Protection against:
SMBJ Package (Top View)
- TIA/EIA-IS-968 Type A & B surge
(formally FCC Part 68)
- UL 60950, Clause 6. power cross
- CSA 22.2 No. 60950, Clause 6. power cross
1
2
R(B)
T(A)
Ring-Tip Protection ..........................TISP4350L3BJ
Electronics Protection..........................TISP4070L3BJ
MDXXBGE
Ion-Implanted Breakdown Region
Precise and Stable Voltage
Low Voltage Overshoot under Surge
Device Symbol
V
V
DRM
V
(BO)
V
Device
T
‘4070
‘4350
58
70
275
350
Rated for ‘60950 and ‘968 Wave Shapes
SD4XAA
I
TSP
A
Wave
Shape
Surge
Type
Standard
R
Terminals T and R correspond to the
alternative line designators of A and B
10/160 µs 50
10/560 µs 30
A
B
TIA/EIA-IS-968 (FCC Part 68)
TIA/EIA-IS-968 (FCC Part 68) 9/720 µs
UL 60950 / ITU-T K.21
10/700 µs
40
............................................ UL Recognized Components
Description
These devices are designed to limit overvoltages on the telephone line. Overvoltages are normally caused by a.c. power system or lightning
flash disturbances which are induced or conducted on to the telephone line. A single device provides 2-point protection and is typically used
for the protection of 2-wire telecommunication equipment (e.g. between the Ring and Tip wires for telephones and modems). Combinations of
devices can be used for multi-point protection (e.g. 3-point protection between Ring, Tip and Ground).
The protector consists of a symmetrical voltage-triggered bidirectional thyristor. Overvoltages are initially clipped by breakdown clamping until
the voltage rises to the breakover level, which causes the device to crowbar into a low-voltage on state. This low-voltage on state causes the
current resulting from the overvoltage to be safely diverted through the device. The high crowbar holding current prevents d.c. latchup as the
diverted current subsides. These protectors are guaranteed to voltage limit and withstand the listed lightning surges in both polarities.
After a Type A surge the equipment can be non-operational or operational. An operational pass requires the two high current Type A surges
(200 A, 10/160, and 100A, 10/560), to be reduced to within the TISP4xxxL3BJ ratings (50 A, 10/160 and 30 A, 10/560).
How To Order
For Standard
For Lead Free
Termination Finish Termination Finish
Device
TISP4xxxL3BJ BJ (J-Bend DO-214AA/SMB)
Insert xxx value corresponding to protection voltages of 070 and 350
Package
Carrier
Order As
Order As
Embossed Tape Reeled TISP4xxxL3BJR
TISP4xxxL3BJR-S
After a Type B surge, the equipment must be operational. As the TISP4xxxL3BJ has a current rating of 40 A, it will survive both Type B surges,
metallic (25 A, 9/720) and longitudinal (37.5 A, 9/720), giving an operational pass to Type B surges.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protector Series
Description (continued)
For metallic protection, the TISP4350L3BJ is connected between the Ring and Tip conductors. For longitudinal protection, two TISP4350L3BJ
protectors are used; one between the Ring conductor to ground and the other between the Tip conductor to ground. The B type ringer has
voltages of 56.5 V d.c. and up to 150 V r.m.s. a.c., giving a peak voltage of 269 V. The TISP4350L3BJ will not clip the B type ringing voltage as
it has a high impedance up to 275 V.
The TISP4070L3BJ should be connected after the hook switch to protect the following electronics. As the TISP4070L3BJ has a high
impedance up to 58 V, it will switch off after a surge and not be triggered by the normal exchange battery voltage.
These low (L) current protection devices are in a plastic package SMBJ (JEDEC DO-214AA with J-bend leads) and supplied in embossed tape
reel pack. For alternative voltage and holding current values, consult the factory. For higher rated impulse currents in the SMB package, the
100 A 10/1000 TISP4xxxH3BJ series is available.
Absolute Maximum Ratings, T = 25 °C (Unless Otherwise Noted)
A
Rating
Symbol
Value
± 58
±275
Unit
‘4070
‘4350
Repetitive peak off-state voltage
V
V
DRM
Non-repetitive peak on-state pulse current (see Notes 1, and 2)
10/160 µs (FCC Part 68, 10/160 µs voltage wave shape, Type A)
5/310 µs (ITU-T K.21, 10/700 µs voltage wave shape)
5/320 µs (FCC Part 68, 9/720 µs voltage wave shape, Type B)
10/560 µs (FCC Part 68, 10/560 µs voltage wave shape, Type A)
Non-repetitive peak on-state current (see Notes 1, 2 and 3)
20 ms (50 Hz) full sine wave
50
40
40
30
I
A
A
TSP
12
13
2
I
16.7 ms (60 Hz) full sine wave
1000 s 50 Hz/60 Hz a.c.
TSM
Initial rate of rise of on-state current, Exponential current ramp, Maximum ramp value < 100 A
di /dt
120
A/µs
°C
T
Junction temperature
T
-40 to +150
-65 to +150
J
Storage temperature range
T
°C
stg
NOTES: 1. Initially the TISP4xxxL3BJ must be in thermal equilibrium with T = 25 °C.
J
2. The surge may be repeated after the TISP4xxxL3BJ returns to its initial conditions.
3. EIA/JESD51-2 environment and EIA/JESD51-3 PCB with standard footprint dimensions connected with 5 A rated printed wiring
track widths. Derate current values at -0.61 %/°C for ambient temperatures above 25 °C.
Overload Ratings, T = 25 °C (Unless Otherwise Noted)
A
Rating
Symbol
Value
Unit
A
Peak overload on-state current, Type A impulse (see Note 4)
200
100
10/160 µs
10/560 µs
I
T(OV)M
See Figure 2
for current
Peak overload on-state current, a.c. power cross tests UL 1950 (see Note 4)
I
A
T(OV)M
versus time
NOTE 4: These electrical stress levels may damage the TIS4xxxL3BJ silicon chip. After test, the pass criterion is either that the device is
functional or, if it is faulty, that it has a short circuit fault mode. In the short circuit fault mode, the following equipment is
protected as the device is a permanent short across the line. The equipment would be unprotected if an open circuit fault mode
developed.
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protector Series
Electrical Characteristics for the R and T Terminals, T = 25 °C (Unless Otherwise Noted)
A
Parameter
Test Conditions
Min
Typ
Max
±5
±10
±70
±350
Unit
Repetitive peak off-
state current
T = 25 °C
A
I
V
= V
DRM
µA
DRM
D
T = 85 °C
A
‘4070
‘4350
V
Breakover voltage
dv/dt = ±250 V/ms,
R
= 300 Ω
SOURCE
V
V
(BO)
dv/dt ≤ ±1000 V/µs, Linear voltage ramp,
Maximum ramp value = ±500 V
di/dt = ±20 A/µs, Linear current ramp,
Maximum ramp value = ±10 A
Impulse breakover
voltage
‘4070
‘4350
±78
±359
V
(BO)
(BO)
I
Breakover current
On-state voltage
Holding current
dv/dt = ±250 V/ms,
R
= 300 Ω
±40
±250
±3
mA
V
SOURCE
V
I = ±5 A, t = 100 µs
T
T
W
I
I = ±5 A, di/dt = -/+ 30 mA/ms
±120
±5
±350
mA
H
T
Critical rate of rise of
off-state voltage
Off-state current
dv/dt
Linear voltage ramp, Maximum ramp value < 0.85V
kV/µs
µA
DRM
I
V
= ±50 V
T = 85 °C
±10
50
48
39
33
30
25
D
D
A
f = 100 kHz, V = 1 V rms,
V
V
V
V
V
V
= 0
‘4070
40
38
31
26
24
20
d
D
D
D
D
D
D
= 1 V
= 5 V
= 0
= 1 V
= 5 V
C
Off-state capacitance
pF
off
f = 100 kHz, V = 1 V rms,
‘4350
d
Thermal Characteristics
Parameter
Test Conditions
Min
Typ
Max
Unit
EIA/JESD51-3 PCB, I = I
,
T
TSM(1000)
115
T = 25 °C, (see Note 5)
A
Rθ
Junction to free air thermal resistance
°C /W
JA
265 mm x 210 mm populated line card,
4-layer PCB, I = I , T = 25 °C
52
T
TSM(1000)
A
NOTE 5: EIA/JESD51-2 environment and PCB has standard footprint dimensions connected with 5 A rated printed wiring track widths.
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protector Series
Parameter Measurement Information
+i
Quadrant I
Switching
ITSP
Characteristic
ITSM
IT
V(BO)
VT
I(BO)
IH
IDRM
ID
VDRM
VD
+v
-v
ID
VD
VDRM
IDRM
IH
I(BO)
VT
V(BO)
IT
ITSM
Quadrant III
ITSP
Switching
Characteristic
-i
PMXXAAB
Figure 1. Voltage-current Characteristic for T and R Terminals
All Measurements are Referenced to the R Terminal
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protector Series
Thermal Information
PEAK OVERLOAD ON-STATE CURRENT
vs
CURRENT DURATION
TI4LAA
40
35
30
TISP4xxxL3BJ WILL
CARRY CURRENT
100 A2s
25
OF TESTS 1 THRU 5
CLAUSE 6.6, UL 1950,
FOR FULL TEST TIME
40 A
20
15
7 A
10
9
8
7
6
5
4
3.5
2.2 A
WIRING
3
SIMULATOR
2.5
2
0·01
0·1
1
10
100
1000
t - Current Duration - s
Figure 2. Peak Overload On-state Current against Duration
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protector Series
APPLICATIONS INFORMATION
FCC Part 68, ACTA, TIA and EIA
From 2001, the registrations for FCC equipment changed from the FCC to ACTA, Administrative Council for Terminal Attachments. For this
function, ACTA needed to adopt a US National standard specifying terminal equipment requirements. The TIA, Telecommunications Industry
Association, in conjunction with the EIA, Electronic Industries Alliance, created TIA/EIA-IS-968 for this purpose. The first issue of TIA/EIA-IS-968
is essentially a renumbered version of the FCC Part 68 requirement. Clause and figure changes are shown in the table.
Item
FCC Part68
TIA/EIA-IS-968
Clause 4.2.2
Clause 4.2.3
Figure 4.1
Telephone Line Surge – Type A
Telephone Line Surge – Type B
Simplified Surge Generator
Open Circuit voltage Wave shape
Clause 68.302 (b)
Clause 68.302 (c)
Fig. 68.302 (a)
Fig. 68.302 (b)
Figure 4.2
Short Circuit Current Wave shape Fig. 68.302 (c)
Figure 4.3
TIA/EIA-IS-968 (FCC Part 68) Impulse Testing
To verify the withstand capability and safety of the equipment, standards require that the equipment is tested with various impulse wave forms.
The table below shows values for the TIA/EIA-IS-968 and ITU-T recommendation K.21.
Test
Condition
V
Peak
Voltage
V
Voltage
Wave Form
µs
Peak
Current
Fictive
TISP4xxxL3
Series
Standard
Current Wave Form
Impedance
Rating
A
Resistance
A
µs
Ω
7.5
8
Ω
2 x 24
19
0
Longitudinal
Metallic
1500
800
10/160
10/560
9/720 †
9/720 †
200
100
37.5
25
10/160
10/560
5/320 †
5/320 †
50
TIA/EIA-IS-968
(FCC Part 68)
30
Longitudinal
Metallic
1500
1000
1500
4000
1500
6000
40
40
40
40
0
ITU-T K.21 ‡
Basic Level
37.5
100
37.5
125
0
Transverse
Transverse
10/700
10/700
5/310
5/310
40
40
30
30
10
0
ITU-T K.21 ‡
Enhanced Level
10
†
‡
TIA/EIA-IS-968 terminology for the wave forms produced by the ITU-T recommendation K.21 10/700 impulse generator
Values assume the TISP4xxxL3 is connected inter-conductor and a 400 V primary is used
If the impulse generator current exceeds the protector’s current rating then a series resistance can be used to reduce the current to the
protector’s rated value to prevent possible failure. The required value of series resistance for a given wave form is given by the following
calculations. First, the minimum total circuit impedance is found by dividing the impulse generator’s peak voltage by the protector’s rated
current. The impulse generator’s fictive impedance (generator’s peak voltage divided by peak short circuit current) is then subtracted from the
minimum total circuit impedance to give the required value of series resistance.
For the TIA/EIA-IS-968 10/560 wave form the following values result. The minimum total circuit impedance is 800/30 = 26.7 Ω and the
generator’s fictive impedance is 800/100 = 8 Ω. For an inter-conductor connected TISP4xxxL3, this gives a minimum series resistance value of
26.7 - 8 = 18.7 Ω. After allowing for tolerance, a 20 Ω ±5 % resistor would be suitable. The 10/160 wave form only needs to be considered if
the TISP4350L3 is connected from the conductor to ground. In this case, the conductor series resistance is 24 Ω ±5 % per conductor.
IEC 60950, UL 1950/60950, CSA C22.2 No. 950/60950 and EN 60950
These electrical safety standards for IT (Information Technology) equipment at the customer premise use the IEC (International Electro-
technical Commission) 60950 standard as the core document. The IEC 60950 covers fundamental safety criteria such as creepage and
isolation. The connection to a telecommunication network voltage (TNV) is covered in clause 6.
Europe is harmonized by CENELEC (Comité Européen de Normalization Electro-technique) under EN 60950 (included in the Low Voltage
Directive, CE mark). Up to the end of 2000, the US had UL (Underwriters Laboratories) 1950 and Canada CSA (Canadian Standards Authority)
C22.2 No. 950. The US and Canadian standards include regional changes and additions to the IEC 60950. A major addition is the inclusion of
clause 6.6, power cross withstand containing the flowchart Figure 18b and annex NAC covering testing. Remarks made for UL 1950 will
generally be true for CSA 22.2 No. 950.
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protector Series
APPLICATIONS INFORMATION
IEC 60950, UL 1950/60950, CSA C22.2 No. 950/60950 and EN 60950 (continued)
In December 2000, UL released UL 60950, which will run concurrently with UL 1950 until 2003, after which submittals can only be made for UL
60950. The equivalent Canadian document is designated CSA C22.2 No. 60950. Changes and differences between UL 1950 and UL 60950 do
not affect power cross testing nor evaluation criteria. Clause and figure numbering has changed between the standards and these changes are
shown in the table. In this document, these two standards are being jointly referred to as UL 60950 and the clause and figure numbering
referenced will be from UL 60950.
Item
UL 1950
UL 60950
Protection against overvoltage from power line crosses Clause 6.6 Clause 6.4
Overvoltage flowchart
Figure 18b Figure 6C
UL 60950, Clause 6.4 – Power Cross
Figure 3 shows the criterion flow for UL 60950 power cross. (This is a modified version of UL6050, Figure 6C — Overvoltage flowchart). There
are many routes for achieving a pass result. For discussion, each criterion has been given a letter reference. Brief details of any electrical
testing is given as a criterion note. Test pass criteria are given in the bottom table of Figure 3.
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protector Series
APPLICATIONS INFORMATION
UL 60950 (12/2000)
IT
Telecommunication network connection
Clause 6.4 — Protection against overvoltage from power line crosses
Figure 6C — Overvoltage flowchart
Equipment
parameters
Annex NAC (normative) — Power line crosses
A
B
Connects
to outside
cable
No overvoltage
No
testing
Test 1.
600 V, 40 A
1.5 s
,
Yes
Has min.
26 AWG
supplied
cord
Has
E
I
100 A2s
≤
No
No
Pass Test 1
@ 600 V
† )
No
Test 5.
120 V, 25 A
,
30 min or
open circuit
Yes
Yes
Yes
Has
1.3 A
d.c.
C
Pass 6.3.3
ground/line
separation
§ )
F
G
H
J
≤
Fail
No
No
Pass test 5
No
limiting ‡ )
Test 2. ¶ )
600 V, 7 A, 5 s
Test 3. #)
600 V, 2.2 A,
30 min or open circuit (3A)
Test 3A. #)
600 V, <3.3 A, 30 min, no
open circuit
Test 4. # )
< Limiting voltage, <2.2 A,
30 min, no open circuit, no
overvoltage protector
voltage limiting
Yes
Yes
Has fire
enclosure
and
Yes
Yes
spacings
No
No
D
Has
fire
enclosure
Pass test 2
pass tests
3, 4
Pass
No
Yes
Yes
NOTES
† ) Overcurrent protector I2 t must be lower than any other equipment element which carries the same current.
‡ ) UL accepts that a fuse with a 1 A or less rating meets the 1.3 A criterion.
§ ) Pass for 120 V a.c. between telecommunication line and ground current < 10 mA.
¶ ) Test 2 not required if the equipment d.c. breaking is 1.3 A or less, see comment ‡).
# ) Tests 3 and 4 not required for equipment with less than 1000 m of outside cable.
Pass criteria
Test 1
✓
Test 2
✓
Test 3
✓
Test 3A
Test 4
✓
Test 5
✓
No cheesecloth charring
Insulation OK
✓
✓
Users must verify
requirements
✓
✓
✓
✓
✓
against latest issue
of UL 60950
Wiring simulator (fuse) OK
✓
✓
I
2t < 100 A 2s @ 600 V a.c.
✓
AIUL60950A
Figure 3. UL 60950 Power Cross Flow Chart
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protector Series
APPLICATIONS INFORMATION
Power Cross Pass Routes
This discussion covers typical modem flows.
Flow
Comment
Box A
The criterion for box A is if the modem connects to an outside TNV line.
No tests
N
A
Y
The majority of modems will be connected to an outside line, so the answer is
yes. The yes path goes to box B.
B
Box B
The criterion for box B is if the equipment has a limit of
2
≤
2
100 A s at 600 V rms
A
Y
2
for Test 1. Many interpret this as a fuse with I t
≤ 100 A s and often miss the
600 V a.c. breaking requirement. However, the current loop is completed by
the fuse and other equipment components. To ensure that the fuse I t sets
N
2
B
E
Y
the equipment performance, the other current loop components, such as the
2
printed wiring (PW), must have higher I t values than the fuse. Certainly the
2
2
C
fuse I t needs to be lower than 100 A s but other components, for example IC
2
packaging, may impose a hazard-free limit of 10 A s. (This conflicts with TIA/
EIA-IS-968 Type A surge pass requirement of 8 A s.)
2
A yes leads to box C and a no to box E.
Boxes E and I
N
N
The criterion for box E is for a minimum telecommunications line cord of No.
26 AWG to be supplied or specified.
E
I
Y
Y
A yes leads to box F and a no to box I.
The criterion for box I is to pass Test 1.
Fail
F
If all the four pass criteria of Test 1 are met, this is ayes and the flow goes to
box F.
A no result fails the equipment.
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protector Series
APPLICATIONS INFORMATION
Power Cross Pass Routes (continued)
Flow
Comment
Boxes C and D
The criterion for box C is overcurrent protection that reduces currents above
A
1.3 A. This requirement is met by a 1 A fuse (a 1 A current fusing rating, not an
IEC 1 A current carrying rating).
Y
B
Y
Modems which pass FCC Part 68 Type B surges and non-operationally pass
Typ e A surges can use a fuse of 1 A or less, so the yes path to box D can be
followed. High performance modems which operationally pass both Type A
and B surges would need a fuse of greater than 1 A and so follow the no path
to box F.
N
N
C
F
Y
The criterion for box D is a fire enclosure.
Few modems can afford fire enclosures. However, for an internal modem in a
known computer case, the case may be evaluated as a fire enclosure. A
successful case evaluation will give a yes and an equipment pass.
Pass
D
Y
H
More likely, the modem will not have a fire enclosure. The no flow goes to box
H.
Boxes F and J
N
N
Fail
The criterion for box F is a pass to clause 6.3.3 requirements.
A yes goes to box G and a no goes to box J.
The criterion for box J is to pass Test 5.
F
J
Y
Y
G
If all the three pass criteria of Test 5 are met, this is ayes and the flow goes to
box G.
A no result fails the equipment.
Boxes G and H
Fail
The criterion for box G is a fire enclosure and spacings (See box D
comments).
Y
Ayes result passes the equipment and a no result leads to box H.
G
N
The criterion for box H is to pass Tests 2, 3 and 4. Test 2 is not required if
there is overcurrent protection that reduces currents above 1.3 A (See box C).
Pass
Y
H
N
High performance modems, using fuses and without fire enclosures, must
pass tests 2, 3, possibly 3A if the fuse opens, and 4. For standard modems,
using fuses of 1 A or less and without fire enclosures, tests 3, 3A and 4 must
be passed.
If the two pass criteria of each of the tests performed are met, this is a yes
and the equipment passes.
A no result fails the equipment.
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protector Series
APPLICATIONS INFORMATION
TISP4xxxL3BJ and UL 60950 Power Cross
The TISP4xxxL3BJ conducts current for periods greater than the power cross test times, Figure 2, so the TISP4xxxL3BJ is not a major factor
in UL 60950 compliance. The main design task for UL 60950 power cross is about enclosure design and the selection of the other components
that are subject to power cross. A UL specified fuse together with a TISP4xxxL3BJ gives a simple approach to meeting the power cross
requirements.
Fuse Values
There are two areas of fuse criteria; surge capability (TIA/EIA-IS-968 (FCC Part 68) impulse) and power cross capability (UL60950 clause 6.4
and annex NAC).
2
2
2
To survive an impulse, a fuse must have a melting I t rating greater than the impulse I t. The fuse I t rating should be specified for the impulse
waveshape current as the normal d.c. rating may not result in adiabatic conditions. Alternatively, the fuse may be specified for a rated current
under the impulse waveshape conditions.
2
2
t .
An exponentially decaying impulse with a current amplitude I
Test waveforms have tolerances and the formula can be approximated to I
and 50 % amplitude decay time of t has an I t value of 0.72 I
D
PP
PP D
2
t , giving about a 40 % allowance to cover tolerances, e.g.
and +30 % on t . Using the approximate formula, the I t values for typical waveforms are shown in the table below.
D
PP
D
2
+5 % on I
PP
2
Amplitude I
Current Wave Shape
/ t (µs)
Melting I t
PP
Specification
2
t
A s
A
R
D
200
100
37.5
37.5
500
100
2
10/160
10/560
5/320
5/310
2/10
6.4
5.6
TIA/EIA-IS-968 Type A (FCC Part 68)
TIA/EIA-IS-968 Type B (FCC Part 68)
UL 60950 / ITU-T K.21
0.45
0.45
2.5
Telcordia (formally Bellcore)
GR-1089-CORE
10/1000
10
2
UL 60950, Annex NAC testing requires that the total I t does not exceed 100 A s for test 1
2
2
K.21 has a.c. induction withstand tests of 1 A s (basic) and 10 A s (enhanced)
Fuse power cross current capability can be determined from its time-current curve. The fuse must be rated to break the current at the applied
power cross a.c. voltage level.
Fuses for TIA/EIA-IS-968
2
2
To survive both the Type A surges, a fuse I t value of greater than 6.4 A s is needed. Fuses such as the Bel SMP 1.25 will meet this criteria and
they are rated for 60 A, 600 V a.c. interruption.
2
2
Fuses must not operate on the Type B surge. To survive a 37.5 A Type B surge, the fuse needs to have an I t of greater than 0.45 A s. A non-
operational pass for TIA/EIA-IS-968 Type A impulses is allowed; this could be a design approach with the TISP4xxxL3, which is likely to fail
2
2
2
short with Type A impulses. A fuse with an I t greater than 0.45 A s and less than 5.6 A s would be needed to ensure that the resultant Type A
impulse fault mode disconnects the modem from the line (avoiding a permanent off-hook condition). The Bel SMP 500 fuse starts to operate at
60 % of the specified Type A impulse current levels and is rated for 60 A, 600 V a.c. interruption.
Fuses for ITU-T Recommendation K.21
2
2
Like TIA/EIA-IS-968, K.21 requires an operation pass on a 37.5 A, 5/310 transverse current impulse, giving a minimum fuse I t of 0.45 A s. This
value may be increased when the coordination test requirements are included. Depending on the conformance level, basic or enhanced, an
2
2
2
a.c. power induction operational pass requires a minimum fuse I t of either a 1 A s or a 10 A s level.
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protector Series
APPLICATIONS INFORMATION
Fuses for UL 60950
Fuses for the UL 1950 power cross need to break the specified currents at 600 V a.c. - ordinary fuses will not do! Fuse specification terms like
short circuit capabilities to UL 1459 and UL 1950/60950, 40 A, 7 A and 2.2 A at 600 V a.c. ensure that the 600 V breaking is met.
2
2
The requirement of Figure 3, box B, limits the fuse I t to less than 100 A s.
Box C, with its 1.3 A limit gives a flow division. Modems passing the TIA/EIA-IS-968 Type A surge in a non-operational mode could use a fuse
of 1 A rating or less and satisfy the 1.3 A limit and move to box D. Modems operationally passing the Type A surge will tend to use a 1.25 A
fuse such as the Bel SMP 1.25, and move to box F. Fuses with ratings of 2 A and above may not operate before the wiring simulator fails
(typically 3 A d.c.).
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protector Series
MECHANICAL DATA
Recommended Printed Wiring Footprint
SMB Land Pattern
2.54
(.100)
2.40
(.094)
2.16
(.085)
MM
(INCHES)
DIMENSIONS ARE:
MDXXBIB
Device Symbolization Code
Devices will be coded as below. As the device parameters are symmetrical, terminal 1 is not identified.
Device
Symbolization Code
4070L3
TISP4070L3BJ
TISP4350L3BJ
4350L3
Carrier Information
Devices are shipped in one of the carriers below. Unless a specific method of shipment is specified by the customer, devices will be shipped in
the most practical carrier. For production quantities, the carrier will be embossed tape reel pack. Evaluation quantities may be shipped in bulk
pack or embossed tape.
For Standard
Termination Finish
Order As
For Lead Free
Termination Finish
Order As
Carrier
Embossed Tape Reel Pack
Bulk Pack
TISP4xxxL3BJR
TISP4xxxL3BJ
TISP4xxxL3BJR-S
TISP4xxxL3BJ-S
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protection Series
MECHANICAL DATA
SMBJ (DO-214AA) Plastic Surface Mount Diode Package
This surface mount package consists of a circuit mounted on a lead frame and encapsulated within a plastic compound. The compound will
withstand soldering temperature with no deformation, and circuit performance characteristics will remain stable when operated in high
humidity conditions. Leads require no additional cleaning or processing when used in soldered assembly.
SMB
4.06 - 4.57
(.160 - .180)
3.30 - 3.94
(.130 - .155)
2
Index
Mark
(if needed)
MM
DIMENSIONS ARE:
(INCHES)
2.00 - 2.40
(.079 - .094)
1.90 - 2.10
(.075 - .083)
1.96 - 2.32
(.077 - .091)
0.10 - 0.20
(.004 - .008)
0.76 - 1.52
(.030 - .060)
5.21 - 5.59
(.205 - .220)
MDXXBHAB
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4xxxL3BJ Overvoltage Protector Series
MECHANICAL DATA
Tape Dimensions
SMB Package Single-Sprocket Tape
1.55 - 1.65
(.061 - .065)
3.90 - 4.10
(.154 - .161)
1.95 - 2.05
(.077 - .081)
0.40
(.016)
MAX.
1.65 - 1.85
(.065 - .073)
5.54 - 5.55
(.215 - .219)
11.70 - 12.30
(.461 - .484)
8.20
(.323)
MAX.
Cover
Tape
7.90 - 8.10
(.311 - .319)
1.50
(.059)
Ø
0 MIN.
MIN.
4.50
(.177)
MAX.
Carrier Tape
Embossment
Direction of Feed
Maximium component
rotation
20°
Typical component
cavity center line
Index
Mark
(if needed)
Typical component
center line
MM
(INCHES)
DIMENSIONS ARE:
NOTES: A. The clearance between the component and the cavity must be within 0.05 mm (.002 in.) MIN. to 0.65 mm (.026 in.)
MAX. so that the component cannot rotate more than 20° within the determined cavity.
B. Taped devices are supplied on a reel of the following dimensions:-
MDXXBJA
Reel diameter:
330mm ± 3.0 mm (12.99 ± .118 in.)
(2.95 in.)
Reel hub diameter: 75 mm
MIN.
Reel axial hole:
13.0mm ± 0.5 mm (.512 ± .020 in.)
C. 3000 devices are on a reel.
“TISP” is a trademark of Bourns, Ltd., a Bourns Company, and is Registered in U.S. Patent and Trademark Office.
“Bourns” is a registered trademark of Bourns, Inc. in the U.S. and other countries.
AUGUST 1999 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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