Datasheet

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WSBS8518
www.vishay.com Vishay Dale
Revision: 15-Nov-2019 1Document Number: 30134
For technical questions, contact: ww2cresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Power Metal Strip® Battery Shunt Resistor,
Very Low Value (50 μ, 100 μ, 125 μ, and 250 μ)
ADDITIONAL RESOURCES
FEATURES
• High power to resistor size ratio
• Proprietary processing technique produces
extremely low resistance values
• All welded construction
• Very low inductance (< 5 nH)
• Low thermal EMF (as low as < 1 μV/°C)
• AEC-Q200 qualified
• Material categorization: for definitions of
compliance please see www.vishay.com/doc?99912
Notes
(1) Please reference WSBS8518…34 datasheet (www.vishay.com/doc?30354) for resistance values 500 μ to 1000 μ
(2) Other values may be available, contact factory
3
3
3
D
D
D
3
D
3D Models
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL SIZE
POWER RATING
P70 °C
W
TOLERANCE
± %
RESISTANCE VALUE
RANGE (1)
RESISTANCE VALUES
CURRENTLY AVAILABLE (2)
WEIGHT
(typical)
g
WSBS8518 8518 36 5, 10 50μ to 1000μ 50μ, 100μ, 125μ, 250μ
50μ = 37.9,
100μ / 125u = 36.5,
250μ = 33.7
TECHNICAL SPECIFICATIONS
PARAMETER UNIT RESISTOR CHARACTERISTICS
Temperature coefficient ppm/°C
± 200 for 50 μ
± 175 for 100 μ, 125 μ
± 110 for 250 μ
Temperature coefficient (element material) ppm/°C ± 20
Operating temperature range °C -65 to +170
Thermal EMF μV/°C < 1 for 50 μ and < 3 for 100 μ, 125 μ, 250 μ
Maximum current rating A (P/R)1/2
GLOBAL PART NUMBER INFORMATION
GLOBAL PART NUMBERING: WSBS8518L1250JK (WSBS8518, 0.000125 , ± 5 %, bulk pack)
GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE SPECIAL
WSBS8518 L = m
L0500 = 0.000050
L1000 = 0.000100
L1250 = 0.000125
L2500 = 0.000250
J = ± 5 %
K = ± 10 %
K = bulk pack
T = tray pack
(dash number)
(up to 2 digits)
from 1 to 99 as
applicable
W S B S 8 5 1 8 L 1 2 5 0 J K
j \+ + if +‘+ i4 ww2€reswsmrs@wshay.com www.v\shay,com/doc?91000
WSBS8518
www.vishay.com Vishay Dale
Revision: 15-Nov-2019 2Document Number: 30134
For technical questions, contact: ww2cresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
DIMENSIONS in inches (millimeters)
DERATING
0.118
(3.0)
0.078
(2.0)
0.492
(12.5) 2.362 (60)
R 0.078 (2) REF.
CALIBRATION CUT
Ø 0.276 (7.0)
2 PLACES
3.346 ± 0.015
(85.0 ± 0.4)
0.708 ± 0.008
(18)
0.354
(9.0)
B
A
1/2 B
0.078 (2) x 45°
CHAMFER TYP.
VOLTAGE TEST
POINTS
70
120
100
80
60
40
20
01751501251007550250- 25- 50- 65
Ambient Temperature in °C
Rated Power in %
TOLERANCES ON DECIMALS
.xxx ± 0.005 [.x ± 0.1]
UNLESS OTHERWISE LISTED
RESISTANCE
VALUE (μ)
ELEMENT
MATERIAL
A
REFERENCE
B
± 0.005 [± 0.13]
50 Mn-Cu 0.145 [3.68] 0.270 [8.71]
100 Mn-Cu 0.370 [9.40] 0.495 [12.57]
125 Mn-Cu 0.480 [12.19] 0.605 [15.37]
250 Mn-Cu 0.900 [22.86] 1.025 [26.04]
PERFORMANCE
TEST CONDITIONS OF TEST TEST LIMITS
Thermal shock -55 °C to +150 °C, 1000 cycles, 15 min at each extreme ± 0.5 % R
Short time overload 5 x rated power for 5 s ± 0.5 % R
Low temperature storage -65 °C for 24 h ± 0.5 % R
High temperature exposure 1000 h at +170 °C ± 1.0 % R
Bias humidity +85 °C, 85 % RH, 10 % bias, 1000 h ± 0.5 % R
Mechanical shock 100 g’s for 6 ms, 5 pulses ± 0.5 % R
Vibration Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h ± 0.5 % R
Load life 1000 h at +70 °C, 1.5 h “ON”, 0.5 h “OFF” ± 1.0 % R
Moisture resistance MIL-STD-202, method 106, 0 % power, 7b not required ± 0.5 % R
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Revision: 01-Jan-2021 1Document Number: 91000
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