333 3 WSBS8518 www.vishay.com Vishay Dale Power Metal Strip Battery Shunt Resistor, Very Low Value (50 , 100 , 125 , and 250 ) 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 V/C) AEC-Q200 qualified Material categorization: for definitions of ADDITIONAL RESOURCES compliance please see www.vishay.com/doc 99912 3D Models STANDARD ELECTRICAL SPECIFICATIONS POWER RATING RESISTANCE VALUE RESISTANCE VALUES WEIGHT GLOBAL TOLERANCE (1) (2) SIZE P RANGE CURRENTLY AVAILABLE (typical) 70 C MODEL % W g 50 = 37.9, WSBS8518 8518 36 5, 10 50 to 1000 50, 100, 125, 250 100 / 125u = 36.5, 250 = 33.7 Notes (1) Please reference WSBS851834 datasheet (www.vishay.com/doc 30354) for resistance values 500 to 1000 (2) Other values may be available, contact factory TECHNICAL SPECIFICATIONS PARAMETER UNIT RESISTOR CHARACTERISTICS 200 for 50 Temperature coefficient ppm/C 175 for 100 , 125 110 for 250 Temperature coefficient (element material) ppm/C 20 Operating temperature range C -65 to +170 Thermal EMF V/C < 1 for 50 and < 3 for 100 , 125 , 250 1/2 Maximum current rating A (P/R) GLOBAL PART NUMBER INFORMATION GLOBAL PART NUMBERING: WSBS8518L1250JK (WSBS8518, 0.000125 , 5 %, bulk pack) W S B S 8 5 1 8 L 1 2 5 0 J K GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE SPECIAL WSBS8518 L = m J = 5 % K = bulk pack (dash number) L0500 = 0.000050 K = 10 % T = tray pack (up to 2 digits) L1000 = 0.000100 from 1 to 99 as L1250 = 0.000125 applicable L2500 = 0.000250 Revision: 15-Nov-2019 Document Number: 30134 1 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 DDD D WSBS8518 www.vishay.com Vishay Dale DIMENSIONS in inches (millimeters) 0.078 (2.0) 0.118 (3.0) 0.492 2.362 (60) (12.5) 0.078 (2) x 45 R 0.078 (2) REF. CHAMFER TYP. A 0.708 0.008 CALIBRATION CUT (18) 0.354 (9.0) 1/2 B 0.276 (7.0) VOLTAGE TEST B 2 PLACES POINTS 3.346 0.015 (85.0 0.4) DERATING TOLERANCES ON DECIMALS 120 .xxx 0.005 .x 0.1 100 UNLESS OTHERWISE LISTED 80 RESISTANCE ELEMENT A B 60 VALUE ( ) MATERIAL REFERENCE 0.005 0.13 40 50 Mn-Cu 0.145 3.68 0.270 8.71 100 Mn-Cu 0.370 9.40 0.495 12.57 20 125 Mn-Cu 0.480 12.19 0.605 15.37 0 - 65- 50 - 25 0 25 50 75 100 125 150 175 250 Mn-Cu 0.900 22.86 1.025 26.04 Ambient Temperature in C 70 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 gs 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 Revision: 15-Nov-2019 Document Number: 30134 2 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 Rated Power in %