WF06R20R0CTLS
更新时间:2024-09-18 23:20:44
品牌:WALSIN
描述:Low resistance with superior pulse withstand ability
WF06R20R0CTLS 概述
Low resistance with superior pulse withstand ability
WF06R20R0CTLS 数据手册
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PDF下载Approval Sheet
WF12Q/R_S, WF08Q/R_S, WF06Q/R_S
WF04T/U_S
1%, 0.5%, 0.25%, 0.1%,
TC50, TC25
Thin Film Pulse Withstanding Chip Resistors
(RoHS compliant 、Halogen Free)
Size 1206, 0805, 0603, 0402
*Contents in this sheet are subject to change without prior notice.
Page 1 of 11
ASC_WFxx_S V01
Aug - 2018
Approval Sheet
FEATURE
1. SMD metal thin film resistor
2. High reliability and stability of 0.5% and below per customer request
3. High performance of TCR: 50 & 25 ppm/C and below per customer request
4. Low current noise
5. RoHS compliant and lead free
6. Sulfuration resistant against ASTM B-809-95
7. Low resistance with superior pulse withstand ability
8. Meet the requirements of standards of specifications as IEC 60115-1 4.24.2, test 96 hours at 85℃/85%RH.
9. Meet the requirements of Q/GDW 11179.3-2014 Class C, 10ms application of a voltage 10 times RCWV
APPLICATION
Test equipment
Measuring instrument
E-meter
Smart meter
Advanced Metering Infrastructure
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 WFxx_S
Page 2 of 11
ASC_WFxx_S V01
Aug - 2018
Approval Sheet
Item
Series No.
General Specification
WF08 Q/R_S WF06 Q/R_S
WF12 Q/R_S
WF04 T/U_S
Size Code
1206
0805
0603
0402
( 3216 )
( 2012 )
( 1608 )
(1005)
Resistance Tolerance
Resistance Range
TCR (ppm/C)
1.0%, 0.5%, 0.25%, 0.1%
1 ~ 30
1 ~ 20
1 ~ 20
1 ~ 20
25 ppm/C : 4.7~20
50 ppm/C : 1 ~ 20
25 ppm/C : 4.7~20
50 ppm/C : 1 ~ 20
50 ppm/C/ 25 ppm/C
Max. Dissipation at
Tamb=70C
1/4W
200V
400V
1/8W
150V
300V
1/10W
75V
1/16W
25V
Max. Operating
Voltage
Max. Overload
Voltage
150V
50V
Operating
Temperature
- 55~ +155C
QUICK REFERENCE DATA
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
Rated Power Resistance
Value
or Max. RCWV listed above, whichever is lower.
3.
1 ~ 20 for 0603/0402 : TCR 25 ppm/ is upon requested.
DIMENSIONS :(unit:mm)
WF12Q/R_S
WF08Q/R_S
WF06Q/R_S
WF04T/U_S
Type
3.05 0.15
1.55 0.15
0.40 0.20
0.40 0.20
0.55 0.15
2.00 0.10
1.25 0.10
0.25 0.20
0.40 0.20
0.50 0.15
1.55 0.10
0.80 0.10
0.25 0.15
0.30 0.15
0.45 0.15
1.00 0.10
0.50 0.05
0.30 0.15
0.30 0.15
0.35 0.05
L
W
A
B
t
Protective coat
t
End termination
Resistive layer
B
A
Ceramic Substrate
1001
W
L
Page 3 of 11
ASC_WFxxS V01
Aug - 2018
Approval Sheet
MARKING
3-digits marking for 0603 size
WFxx_S has same marking rule as WRxx ±1%.
Nominal resistance
Description
1.E-24 series
2.E-96 series
As 0603 WR06X 5%.
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 :
17.8Ω=25X,178Ω=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
4-digits marking for 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 976 the R is used as a digit. For values of 100 or greater, the
first 3 digits are significant; the fourth digit indicates the number of multiple to follow.
Example
RESISTANCE
10
12
100
6800
47000
4-digits marking
10R0
12R0
1000
6801
4702
No marking code for 0402 size
FUNCTIONAL DESCRIPTION
Product characterization
Standard values of nominal resistance are taken from the E192 & E24 series for resistors with a tolerance of
1.0%, 0.5%, 0.25%, 0.1%. The values of the E24/E192 series are in accordance with “IEC publication
60063”.
Page 4 of 11
ASC_WFxxS V01
Aug - 2018
Approval Sheet
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 11
ASC_WFxxS V01
Aug - 2018
Approval Sheet
SOLDERING CONDITION
The robust construction of chip resistors allows them to be completely immersed in a solder bath of 260C 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 245C during 5 seconds within lead-free solder bath. The
test condition for no leaching is 260C for 30 seconds. Typical examples of soldering profile and condition that
provide reliable joints without any damage are given in Fig 3. and Table 1.
Fig. 3 Infrared soldering profile for Chip Resistors
Table 1. Infrared soldering condition for Chip Resistors
Temperature Condition
Average ramp-up rate (217C to 260C)
Between 150 and 200C
> 217C
Exposure Time
Less than 3C/second
Between 60-120 seconds
Between 60-150 seconds
260ºC +0/-5C
Peak Temperature
Min. 30 seconds
Time within 245C
Ramp-down rate (Peak to 217C)
Time from 25C to Peak
Less than 6C/second
No greater than 480 seconds
Page 6 of 11
ASC_WFxxS V01
Aug - 2018
Approval Sheet
CATALOGUE NUMBERS
The resistors have a catalogue number starting with.
WF06
Q/R
xxxx
B
T
L
S
Size code
Type code
Resistance code
220=2200
Tolerance
B : 0.10%
C : 0.25%
D : 0.50%
F : 1.00%
Packaging code
Termination code
Special code
WF12: 1206 Q: TCR = 25 ppm
WF08: 0805 R: TCR = 25 ppm
WF06: 0603 High Power
T : 7” Reel taping
L = lead free
S :Pulse
withstanding
20 =20R0
4.7 =4R70
WF04: 0402 T: TCR = 25 ppm
U: TCR = 25 ppm
Normal Power
1. Reeled tape packaging: 8mm width paper taping.
5,000pcs/reel for WF12_S, WF08_S, WF06_S,
10,000pcs/reel for WF04_S;
Page 7 of 11
ASC_WFxxS V01
Aug - 2018
Approval Sheet
TEST AND REQUIREMENTS
REQUIREMENT
TEST
PROCEDURE
Resistor
DC resistance
DC resistance values measured
Within the specified tolerance
IEC60115-1 4.5.1
Temperature
Coefficient of
Natural resistance change per change in degree Refer to
centigrade.
“ QUICK REFERENCE DATA “
Resistance(T.C.R)
IEC 60115-1 4.8.4.1
R 2 R1
6
10 (ppm/C)
R1
t2 t1
R1 : Resistance at reference temperature
R2 : Resistance at test temperature
t1 : 20°C+5°C-1°C
t2 : 125°C+5°C-1°C
Short time overload
(S.T.O.L)
Permanent resistance change after
a 5second
R/R max. ±(0.5%+0.05)
application of a voltage 2.5 times RCWV or the
maximum overload voltage specified in the above
list, whichever is less.
IEC60115-1 4.13
Measure test conclusion after 30mins
Resistance to soldering
heat(R.S.H)
IEC 60115-1 4.18
Un-mounted chips completely immersed for no visible damage
10±1second in a SAC solder bath at 260℃±5ºC
R/R max. ±(0.2%+0.05)
Solderability
1.Un-mounted chips completely immersed for 5 good tinning (>95% covered)
seconds in a SAC solder bath at 245℃±5℃
no visible damage
IEC 60115-1 4.17
Temperature cycling
no visible damage
30 minutes at -55C3C, 2~3 minutes at 20°C+5°C-
1°C, 30 minutes at +155C3C, 2~3 minutes at
20°C+5°C-1°C, total 5 continuous cycles
IEC 60115-1 4.19
R/R max. (0.5%+0.05)
Load life (endurance)
70±2ºC, 1000 hours, loaded with RCWV or
Vmax,1.5 hours on and 0.5 hours off
R/R max. (0.5%+0.05)
R/R max. (0.5%+0.05)
IEC 60115-1 4.25.1
Load life in Humidity
1000 hours, at rated continuous working voltage in
humidity chamber controller at 40C2C and
90~95% relative humidity, 1.5hours on and 0.5 hours
off
IEC 60115-1 4.24.2
Bending strength
Resistors mounted on a 90mm glass epoxy resin
PCB(FR4); bending : 3 mm, once for 10 seconds.
R/R max. ±(0.1%+0.05)
IEC 60115-1 4.33
Pressurizing force: 5N, Test time: 10±1sec.
Adhesion
No remarkable damage or removal of
the terminations.
IEC 60115-1 4.32
Insulation Resistance
R≧10GΩ
Apply the maximum overload voltage (DC) for
1minute
Clause 4.6
Dielectric Withstand
Apply the maximum overload voltage (AC) for 1 No breakdown or flashover
minute
Voltage
Clause 4.7
Flower of Sulfur
Sulfur 480 hours, 60°C, unpowered
R/R max. ±(1%+0.05)
ASTM-B-809-95
Page 8 of 11
ASC_WFxxS V01
Aug - 2018
Approval Sheet
PACKAGING
Paper Tape specifications (unit :mm)
Series No.
WF12
Tape
Paper
Paper
Paper
Paper
A
B
W
D
E
3.60±0.20
2.40±0.20
1.90±0.20
1.20±0.10
2.00±0.20
1.65±0.20
1.10±0.20
0.7±0.10
8.00±0.30
8.00±0.30
8.00±0.30
8.00±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
WF08
WF06
WF04
Series No.
WF12
F
P0
T
D
0 .1
0 .0
4.00±0.10
4.00±0.10
Max. 1.0
1 .50
1 .50
1 .50
1 .50
0 .1
0 .0
WF08
WF06
4.00±0.10
4.00±0.10
4.00±0.10
4.00±0.10
Max. 1.0
0 .1
0 .0
0.65±0.05
0 .1
0 .0
2.00±0.10
4.00±0.10
0.40±0.05
WF04
Page 9 of 11
ASC_WFxxS V01
Aug - 2018
Approval Sheet
Reel dimensions
B
A
C
D
WF12_S, WF08_S, WF06_S, WF04_S
Symbol
A
B
C
D
(unit : mm)
13.0±0.2
9.0±0.5
178.0±2.0
60.0±1.0
Taping quantity
-
-
-
Chip resistors 5,000 pcs per reel ( WF12_S, WF08_S, WF06_S )
Chip resistors 10,000 pcs per reel ( WF04_S )
Page 10 of 11
ASC_WFxxS V01
Aug - 2018
Approval Sheet
PULSE LOAD PERFORMANCE:
Single Pulse
1,000 rectangular pulse amplitudes are applied to the component at intervals of 60seconds,
Permissible resistance to be varied by ± (0.5% R + 0.05Ω).
Continuous Pulse
Continuous load is a pulse period generated by the repetitive rectangular pulse amplitude,
the applied power dissipation is at a rated power of 70 ° C.
Permissible resistance to be varied by ± (0.5% R + 0.05Ω).
Page 11 of 11
ASC_WFxxS V01
Aug - 2018
WF06R20R0CTLS 相关器件
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