1SMA4749 [TSC]
Surface Mount Silicon Zener Diode; 表面贴装硅稳压二极管
| 型号： | 1SMA4749 |
| 厂家： | 
TAIWAN SEMICONDUCTOR COMPANY, LTD |
| 描述： | Surface Mount Silicon Zener Diode |
| 文件： | 总5页 (文件大小：105K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
1SMA4741 THRU 1SMA200Z
Surface Mount Silicon Zener Diode
Voltage Range
11 to 200 Volts
1.0 Watts Peak Power
SMA/DO-214AC
Features
a
For surface mounted applications in order to optimize
board space
.062(1.58)
.056(1.43)
.111(2.83)
.102(2.29)
a
a
a
a
a
a
Low profile package
Built-in strain relief
Glass passivated junction
Low inductance
Typical IR less than 5.0ꢀA above 11V
High temperature soldering guaranteed:
260OC / 10 seconds at terminals
.187(4.75)
.167(4.25)
a
Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
.103(2.30)
.078(1.99)
.012(.31)
.006(.15)
Mechanical Data
.008(.20)
.004(.10)
a
a
Case: Molded plastic over passivated junction
Terminals: Solder plated solderable per
MIL-STD-750, Method 2025
.056(1.41)
.035(0.90)
.210(5.33)
.195(4.95)
a
a
Polarity:Color Band denotes positive end (cathode)
Standard packaging: 12mm tape (EIA-481)
Dimensions in inches and (millimeters)
a
Weight: 0.002 ounces, 0.064 gram
Maximum Ratings and Electrical Characteristics
Rating at 25ꢀambient temperature unless otherwise specified.
Type Number
Symbol
Value
1.0
6.67
Units
Watts
Peak Power Dissipation at TA=50OC,
PD
Derate above 50 OC (Note 1)
Peak Forward Surge Current, 8.3 ms Single Half
Sine-wave Superimposed on Rated Load
(JEDEC method) (Note 2)
Operating and Storage Temperature Range
Notes: 1. Mounted on 5.0mm2 (0.013mm thick) land areas.
mW/ OC
IFSM
10.0
Amps
OC
TJ, TSTG
-55 to + 150
2. Measured on 8.3ms Single Half Sine-wave or Equivalent Square Wave,
Duty Cycle=4 Pulses Per Minute Maximum.
- 123 -
ELECTRICAL CHARACTERISTICS (TA=25OC unless otherwise noted) VF=1.2V max, IF=200mA for all types.
Nominal
Device
Marking
Code
Zener Voltage
Test
Current
IZT
mA
23
Surge Current @
TA = 25OC
Maximum Zener Impedance (Note 4) Leakage Current
Device
Vz @ Izt
ZZK @ IZK
Ohms
IR @ VR
(Note 1)
Voltage
ZZT @ IZT
Ohms
8
Ir - mA
(Note 5)
414
380
344
304
285
250
225
205
190
170
150
135
125
115
110
95
(Notes 2 & 3)
mA
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
uA Max
Volts
8.4
1SMA4741
1SMA4742
1SMA4743
1SMA4744
1SMA4745
1SMA4746
1SMA4747
1SMA4748
1SMA4749
1SMA4750
1SMA4751
1SMA4752
1SMA4753
1SMA4754
1SMA4755
1SMA4756
1SMA4757
1SMA4758
1SMA4759
1SMA4760
1SMA4761
1SMA4762
1SMA4763
1SMA4764
1SMA110Z
1SMA120Z
1SMA130Z
1SMA150Z
1SMA160Z
1SMA180Z
1SMA200Z
741A
742A
743A
744A
745A
746A
747A
748A
749A
750A
751A
752A
753A
754A
755A
756A
757A
758A
759A
760A
761A
762A
763A
764A
110A
120A
130A
150A
160A
180A
200A
11
12
700
700
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
21
9
9.1
13
19
10
700
9.9
15
17
14
700
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
42.6
47.1
51.7
56.0
62.2
69.2
76.0
83.6
91.2
98.8
114.0
121.6
136.8
152.0
16
15.5
14.0
12.5
11.5
10.5
9.5
16
700
18
20
750
20
22
750
22
23
750
24
25
750
27
35
750
30
8.5
40
1000
1000
1000
1000
1500
1500
1500
2000
2000
2000
2000
3000
3000
3000
4000
4500
5000
6000
6500
7000
8000
33
7.5
45
36
7.0
50
39
6.5
60
43
6.0
70
47
5.5
80
51
5.0
95
90
56
4.5
110
125
150
175
200
250
350
450
550
700
1000
1100
1200
1500
80
62
4.0
70
68
3.7
65
75
3.3
60
82
3.0
55
91
2.8
50
100
110
120
130
150
160
180
200
2.5
45
2.3
-
2.0
-
1.9
-
1.7
-
1.6
-
1.4
-
1.2
-
Notes:
1. Tolerance and Type Number Designation. The type numbers listed have a standard tolerance on the nominal zener voltage of ±5%.
2. Specials Available Include:
A. Nominal zener voltages between the voltages shown and tighter voltage tolerances.
B. Matched sets.
3. Zener Voltage (VZ) Measurement. Guarantees the zener voltage when messured at 90 seconds while maintaining
the lead temperature (TL) at 30OC± 1OC, from the diode body.
4. Zener Impedance (ZZ) Derivation. The zener impedance is derived from the 1000 cycle ac voltage, which results when an ac
current having and rms value equal to 10% of the dc zener current (IZT or IZK) is superimposed on IZT or IZK.
5. Surge Current (Ir) Non-Repetitive. The rating listed in the electrical characteristics table is maximum peak, non-repetitive,
reverse surge current of 1/2 square wave or equivalent sine wave pulse of 1/120 second duration superimposed on the
test current, IZT, per JEDEC registration; however, actual device capability is as described in Figure 10.
- 124 -
RATINGS AND CHARACTERISTIC CURVES ( 1SMA4741 THRU 1SMA200Z)
FIG.1- POWER TEMPERATURE DERATING CURVE
FIG.2- TYPICAL FORWARD CHARACTERISTICS
1000
1.25
MINIMUM
MAXIMUM
500
200
100
50
1.0
0.75
0.50
70 o
C
C
20
10
150 o
25 o
C
5.0
0.25
0 o
C
2.0
1.0
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
0
20
40
60
80
100 120 140 160 180 200
AMBIENT TEMPERATURE(oC)
VF, FORWARD VOLTAGE (VOLTS)
FIG.3- EFFECT OF ZENER CURRENT
ON ZENER IMPEDANCE
FIG.5- TYPICAL LEAKAGE CURRENT
10000
1000
TJ = 25 o
IZ(rms)= 0.1 IZ(dc)
f = 1KHz
C
7000
5000
500
TYPICAL LEAKAGE CURRENT
AT 80% OF NOMINAL
BREAKDOWN VOLTAGE
200
100
50
2000
47V
1000
700
500
27V
20
10
200
0.8V
100
70
5.0
50
2.0
1.0
20
0.1
0.2
0.5
1.0
2.0
5.0
10
20
50 100
10
7.0
5.0
IZ, ZENER CURRENT (mA)
2.0
FIG.4- EFFECT OF ZENER VOLTAGE
ON ZENER IMPEDANCE
1.0
0.7
0.5
+125 o
C
1000
700
500
0.2
TJ = 25 o
IZ(rms)= 0.1 IZ(dc)
f = 1KHz
C
0.1
0.07
0.05
IZ = 1.0mA
5.0mA
200
100
70
0.02
0.01
50
+25 o
C
20mA
20
10
0.007
0.005
7.0
5.0
0.002
0.001
2.0
1.0
3.0 4.0 5.0 6.0 7.0 8.0 9.0
10 11 12
13
14 15
VZ,
NOMINAL ZENER VOLTAGE (VOLTS)
1.0
2.0 3.0
5.0 7.0 10
20 30
50 70 100
IZ, ZENER CURRENT (mA)
- 125 -
RATINGS AND CHARACTERISTIC CURVES ( 1SMA4741 THRU 1SMA200Z)
FIG.6- TYPICAL CAPACITANCE versus Vz
FIG.7- TEMPERATURE COEFFICIENTS
400
a-RANGE FOR UNITS TO 12 VOLTS
300
+12
200
+10
+8.0
+6.0
0V BIAS
1.0V BIAS
100
+4.0
+2.0
0
VZ @ IZT
RANGE
10
8
50% OF BREAKDOWN BIAS
10
-2.0
-4.0
4
1.0
100
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10
11
12
VZ, FORWARD VOLTAGE (VOLTS)
V
Z, ZENER VOLTAGE (VOLTS)
FIG.8- TEMPERATURE COEFFICIENTS
FIG.9- EFFECT OF ZENER CURRENT
b-RANGE FOR UNITS 11 TO 100 VOLTS
+6.0
100
70
50
VZ @ IZT
TA25 oC
+4.0
+2.0
30
20
20mA
VZ @ IZT
10
RANGE
0
-2.0
-4.0
7.0
5.0
0.01mA
1.0mA
3.0
2.0
NOTE: BELOW 3 VOLTS AND ABOVE a VOLTS
CHANGES IN ZENER CURRENT OO NOT
AFFECT TEMPERATURE COEFFICIENTS
1.0
3.0
4.0
5.0
6.0
7.0
8.0
10
20
30
50
70
100
V
Z, ZENER VOLTAGE (VOLTS)
VZ, ZENER VOLTAGE (VOLTS)
- 126 -
RATINGS AND CHARACTERISTIC CURVES ( 1SMA4741 THRU 1SMA200Z)
FIG.10- MAXIMUM SURGE POWER
100
70
50
RECTANGULAR
WAVEFORM
TJ = 25oC PRIOR TO
INITIAL PULSE
11V-91V NON-REPETITIVE
0.8V-10V NON-REPETITIVE
5% DUTY CYCLE
30
20
10
10% DUTY CYCLE
20% DUTY CYCLE
7.0
5.0
3.0
2.0
1.0
0.01
0.02
0.05
0.1
0.2
0.5
1.0
2.0
5.0
10
20
50
100
200
500
1000
PW, PULSE WIDTH (ms)
- 127 -
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