SF12U3742CTL [WALSIN]
Anti-Sulfuration Thin Film Chip Resistors;型号: | SF12U3742CTL |
厂家: | Walsin Technology |
描述: | Anti-Sulfuration Thin Film Chip Resistors |
文件: | 总10页 (文件大小:1978K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Approval Sheet
SF25T&U, SF20T&U, SF10T&U, SF12T&U,
SF08T&U, SF06T&U, SF04T&U
ê1.0%, ê0.5%, ê0.25%, ê0.1%, ê0.05%
TC50 , TC25
Anti-Sulfuration Thin Film Chip Resistors
Size: 2512, 2010, 1210, 1206, 0805, 0603, 0402
*Contents in this sheet are subject to change without prior notice.
Page 1 of 10
ASC_SFxxT&U_V02
MAY - 2018
Approval Sheet
FEATURE
1. SMD metal film resistor
2. High reliability and stability of 0.25% and below per customer request
3. High performance of TCR: 50 & 25 ppm/K and below per customer request
4. Low current noise
5. Sulfuration resistant against ASTM B-809
6. RoHS compliant and Lead free products
APPLICATION
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Medical equipment
Measuring instrument
Communication device
Computer
Printer
DESCRIPTION
The resistors are constructed in a high grade ceramic body (aluminum oxide). Internal metal electrodes are
added at each end and connected by a resistive layer that is applied to the top surface of the substrate. The
composition of the resistive layer is adjusted to give the approximate resistance required and the value is
trimmed to nominated value within tolerance which controlled by laser trimming of this resistive layer.
The resistive layer is covered with a protective coat. Finally, the two external end terminations are added. For
environmental soldering issue, the outer layer of these end terminations is a Lead-free solder .
Fig 1. Construction of Chip-R SFxxT&U
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Approval Sheet
QUICK REFERENCE DATA
Item
General Specification
Series No.
SF25T&U
2512
SF20T&U
2010
SF10T&U
SF12T&U
1206
SF08T&U
SF06T&U
SF04T&U
0402
1210
0805
0603
Size Code
(6432)
(5025)
(3225)
( 3216 )
( 2012 )
( 1608 )
( 1005 )
Resistance
Tolerance
ê1.0%, ê0.5%, ê0.25%, ê0.1%, ê0.05%
1W ~
3MW
4.7W ~
3MW
4.7W ~
2.5MW
1W ~
4.7W ~
2MW
4.7W ~
1MW
10W ~
Resistance Range
2.5MW
255KW
TCR
ê50 / 25 ppm/èC
Max. Dissipation at
3/4W
200V
400V
1/2W
200V
400V
1/4W
200V
400V
1/8W
1/10W
100V
200V
1/16W
50V
1/16W
25V
Tamb=70èC
Max. Operating
Voltage
200V
400V
Max. Overload
Voltage
100V
50V
Operating
Temperature
- 55~ +155èC
Note :
1.
This is the maximum voltage that may be continuously supplied to the resistor element, see “IEC publication
60115-8”
2.
Max. Operation Voltage : So called RCWV (Rated Continuous Working Voltage) is determined by
RCWV = RatedPower ìResistance Value or Max. RCWV listed above, whichever is lower.
Tolerance : ê0.01% is upon requested
3.
DIMENSIONS: (unit:mm)
SF25T
SF20T
SF10T
SF12T
SF08T
SF06T
SF04T
Type
6.35 ê 0.10
3.20 ê 0.15
0.60 ê 0.20
0.90 ê 0.25
0.55 ê 0.10
5.00 ê 0.10
2.50 ê 0.15
0.60 ê 0.20
0.60 ê 0.25
0.55 ê 0.10
3.10 ê 0.10
2.60 ê 0.15
0.50 ê 0.20
0.50 ê 0.20
0.55 ê 0.10
3.05 ê 0.15
1.55 ê 0.15
0.40 ê 0.20
0.40 ê 0.20
0.55 ê 0.15
2.00 ê 0.10
1.25 ê 0.10
0.25 ê 0.20
0.40 ê 0.20
0.50 ê 0.15
1.55 ê 0.10
0.80 ê 0.10
0.30 ê 0.15
0.30 ê 0.15
0.45 ê 0.15
1.00 ê 0.10
0.50 ê 0.05
0.30 ê 0.15
0.30 ê 0.15
0.35 ê 0.05
L
W
A
B
t
Protective coat
t
End termination
B
A
Resistive layer
Ceramic Substrate
1001
T
W
L
Page 3 of 10
ASC_SFxxT&U_V02
MAY - 2018
Approval Sheet
MARKING
ò
3-digits marking for 0603 size
SFxxT / U has same marking rule as WRxx ±1%.
3-digits marking ê1% : 0603
Nominal resistance
Description
1.E-24 series
2.E-96 series
As 0603 WR06X ê5%.
The 1st two digit codes are referring to the CODE on the table, the 3rd code is the index of resistance
value :
Y=10-2 X=10-1 A=100 B=101 C=102 D=103 E=104 F=105
EX :
17.8 =25X 178 =25A 1K78 =25B
17K8=25C 178K=25D 1M78=25E
3. Remark
There is no marking for the items are not under E-24 and E-96 series
CODE R_value CODE R_value CODE R_Value CODE R_value CODE R_value CODE R_value CODE R_value CODE R_value
01
02
03
04
05
06
07
08
09
10
11
12
100
102
105
107
110
113
115
118
121
124
127
130
13
14
15
16
17
18
19
20
21
22
23
24
133
137
140
143
147
150
154
158
162
165
169
174
25
26
27
28
29
30
31
32
33
34
35
36
178
182
187
191
196
200
205
210
215
221
226
232
37
38
39
40
41
42
43
44
45
46
47
48
237
243
249
255
261
267
274
280
287
294
301
309
49
50
51
52
53
54
55
56
57
58
59
60
316
324
332
340
348
357
365
374
383
392
402
412
61
62
63
64
65
66
67
68
69
70
71
72
422
432
442
453
464
475
487
499
511
523
536
549
73
74
75
76
77
78
79
80
81
82
83
84
562
576
590
604
619
634
649
665
681
698
715
732
85
86
87
88
89
90
91
92
93
94
95
96
750
768
787
806
825
845
866
887
909
931
953
976
ò
4-digits marking for 2512, 2010, 1210, 1206, 0805 size
For E24+E96, each resistor is marked with a four digits code on the protective coating to designate the
nominal resistance value. For values below 97W6 the R is used as a digit. For values of 100W or greater, the
first 3 digits are significant, the fourth digit indicates the number of multiple to follow.
Example
RESISTANCE
10W
12W
100W
6800W
47000W
10R0
12R0
1000
6801
4702
4-digits marking
ò
No marking code for 0402 size
Page 4 of 10
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Approval Sheet
FUNCTIONAL DESCRIPTION
Product characterization
Standard values of nominal resistance are taken from the E192 & E24 series for resistors with a tolerance of
ê0.5%, ê0.25%, ê0.1%. The values of the E24/E192 series are in accordance with “IEC publication 60063”
Derating
The power that the resistor can dissipate depends on the operating temperature; see Fig.2
MOUNTING
Due to their rectangular shapes and small tolerances, Surface Mountable Resistors are suitable for handling by
automatic placement systems.
Chip placement can be on ceramic substrates and printed-circuit boards (PCBs).
Electrical connection to the circuit is by individual soldering condition.
The end terminations guarantee a reliable contact.
Page 5 of 10
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Approval Sheet
SOLDERING CONDITION
The robust construction of chip resistors allows them to be completely immersed in a solder bath of 260èC for 10
seconds. Therefore, it is possible to mount Surface Mount Resistors on one side of a PCB and other discrete
components on the reverse (mixed PCBs).
Surface Mount Resistors are tested for solderability at 235èC during 2 seconds within lead-free solder bath. The
test condition for no leaching is 260èC for 30 seconds. Typical examples of soldering processes that provide
reliable joints without any damage are given in Fig 3. Table 1.
Fig. 3 Infrared soldering profile for Chip Resistors
Table 1. Infrared soldering condition for Chip Resistors
Temperature Condition
Average ramp-up rate (217èC to 260èC)
Between 150 and 200èC
> 217èC
Exposure Time
Less than 3èC/second
Between 60-120 seconds
Between 60-150 seconds
260ºC +0/-5èC
Peak Temperature
Min. 30 seconds
Time within 245èC
Ramp-down rate (Peak to 217èC)
Time from 25èC to Peak
Less than 6èC/second
No greater than 480 seconds
Page 6 of 10
ASC_SFxxT&U_V02
MAY - 2018
Approval Sheet
CATALOGUES NUMBERS
The resistors have a catalogue number starting with .
SF04
U / T
xxxx
Resistance code
E192+E24:
D
T
L
Size code
Type code
Tolerance
F : ê1.0%
D : ê0.5%
C: ê0.25%
B : ê0.1%
A : ê0.05%
Packaging code
Termination code
SF25: 2512 T: TCR = 50 ppm
SF20: 2010 U: TCR = 25 ppm
SF10: 1210
T : 7” Taped & Reeled L : Sn base
(lead free)
3 significant digits followed
by no. of zeros
102W
37.4KW =3742
220W =2200
=1020
SF12: 1206
SF08: 0805
SF06: 0603
SF04: 0402
1. Reeled tape packaging: 8mm width paper taping.
5,000pcs/reel for SF10, SF12, SF08, SF06
10,000pcs/reel for SF04
2. Reeled tape packaging: 12mm width paper taping
4,000pcs/reel for SF25, SF20
Page 7 of 10
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Approval Sheet
TEST AND REQUIREMENTS(JIS C 5201-1 : 1998)
REQUIREMENT
TEST
PROCEDURE
Resistor
DC resistance
DC resistance values measured at the test voltages specified below :
Within the specified tolerance
Clause 4.5
Natural resistance change per change in degree centigrade.
R2 - R
ì106 (ppm/èC)
1
Temperature Coefficient
of Resistance(T.C.R)
R t2 - t1
Refer
to
1
“QUICK REFERENCE DATA”
R1 : Resistance at reference temperature
R2 : Resistance at test temperature
t1 : 20°C+5°C-1°C
Clause 4.8
Short
time
overload
Permanent resistance change after a 5second application of a voltage
(S.T.O.L)
2.5 times RCWV or the maximum overload voltage specified in the DR/R max. ±(0.1%+0.05W)
above list, whichever is less.
Clause 4.13
Resistance to soldering
heat(R.S.H)
Clause 4.18
no visible damage
Un-mounted chips completely immersed for 10±1second in a SAC
solder bath at 260 ±5ºC
D R/R max. ±(0.1%+0.05W)
good tinning (>95% covered)
Solder ability
Un-mounted chips completely immersed for 2±0.5 second in a SAC
solder bath at 235 ±5
no visible damage
Clause 4.17
30 minutes at -55èCê3èC, 2~3 minutes at 20°C+5°C/-1°C, 30 minutes
at +125èCê3èC, 2~3 minutes at 20°C+5°C/-1°C, total 5 continuous
cycles
no visible damage
Temperature cycling
Clause 4.19
DR/R max. ±(0.25%+0.05W)
Load Life (Endurance)
1000 +48/-0 hours, loaded with RCWV or Vmax in chamber controller
70±2ºC, 1.5 hours on and 0.5 hours off
DR/R max. ê(0.25%+0.05W)
DR/R max. ê(0.25%+0.05W)
DR/R max. ±(0.1%+0.05W)
Clause 4.25
1000 +48/-0 hours, loaded with RCWV or Vmax in humidity chamber
controller at 40èCê2èC and 90~95% relative humidity, 1.5hours on and
0.5 hours off
Humidity
Clause 4.24
Bending strength
Clause 4.33
Adhesion
Resistors mounted on a 90mm glass epoxy resin PCB(FR4); bending :
3 mm, once for 10 seconds.
No remarkable damage or
removal of the terminations.
Pressurizing force: 5N, Test time: 10 1sec.
Clause 4.32
Insulation Resistance
R
10G
Apply the maximum overload voltage (DC) for 1minute
Clause 4.6
Dielectric
Withstand
Voltage
Apply the maximum overload voltage (AC) for 1 minute
Sulfur 480 hours, 60 C, unpowered
No breakdown or flashover
Clause 4.7
Flower of Sulfur
DR/R max. ±(1.0%+0.05W)
ASTM-B-809-95
Page 8 of 10
ASC_SFxxT&U_V02
MAY - 2018
Approval Sheet
PACKAGING
Paper Tape specifications (unit :mm)
P0
F
D
Series No.
SF25
A
B
W
D
E
6.90±0.20
5.50±0.20
3.60±0.20
3.60±0.20
2.40±0.20
1.90±0.20
1.20±0.10
3.60±0.20
2.80±0.20
2.00±0.20
3.00±0.20
1.65±0.20
1.10±0.20
0.7±0.10
12.00±0.30
12.00±0.30
8.00±0.30
8.00±0.30
8.00±0.30
8.00±0.30
8.00±0.20
5.50±0.10
5.50±0.10
3.50±0.20
3.50±0.20
3.50±0.20
3.50±0.20
3.50±0.05
1.75±0.10
1.75±0.10
1.75±0.10
1.75±0.10
1.75±0.10
1.75±0.10
1.75±0.10
SF20
SF12
SF10
SF08
SF06
SF04
Series No.
SF12
F
P0
T
FD
+0.1
4.00±0.10
4.00±0.10
Max. 1.0
F1.50
-0.0
+0.1
SF25
SF20
SF10
SF08
SF06
4.00±0.10
4.00±0.10
4.00±0.10
4.00±0.10
4.00±0.10
4.00±0.10
4.00±0.10
4.00±0.10
4.00±0.10
4.00±0.10
Max 1.2
Max 1.2
Max. 1.0
Max. 1.0
0.65±0.05
F1.50
-0.0
+0.1
-0.0
F1.50
+0.1
-0.0
F1.50
+0.1
-0.0
F1.50
+0.1
-0.0
F1.50
+0.1
-0.0
2.00±0.10
4.00±0.10
0.40±0.05
SF04
F1.50
Page 9 of 10
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Approval Sheet
Reel dimensions
B
A
C
D
SF25 , SF20
Symbol
(unit : mm)
A
B
C
D
13.0±0.2
14.0±0.5
F178.0±2.0
F60.0±1.0
SF12 , SF10 , SF08 , SF06 , SF04
Symbol
A
B
C
D
(unit : mm)
13.0±0.2
9.0±0.5
F178.0±2.0
F60.0±1.0
Taping quantity
-
-
-
Chip resistors 4,000 pcs per reel ( SF25, SF20 )
Chip resistors 5,000 pcs per reel ( SF10, SF12, SF08, SF06 )
Chip resistors 10,000 pcs per reel ( SF04 )
Page 10 of 10
ASC_SFxxT&U_V02
MAY - 2018
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