WSBS8518M4 www.vishay.com Vishay Dale Power Metal Strip Battery Shunt Resistor With M4 Tapped Holes 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 (< 3 V/C) Material categorization: for definitions of compliance please see www.vishay.com/doc 99912 DESIGN SUPPORT TOOLS click logo to get started Models Available STANDARD ELECTRICAL SPECIFICATIONS POWER RATING RESISTANCE VALUE RESISTANCE VALUES WEIGHT GLOBAL TOLERANCE (1) SIZE P RANGE CURRENTLY AVAILABLE (typical) 70 C MODEL % W g 50 = 37.9, WSBS8518M4 8518 36 5, 10 50 to 250 50, 100, 125, 250 100 / 125 = 36.5, 250 = 33.7 Note (1) 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 1/2 Maximum current rating A (P/R) GLOBAL PART NUMBER INFORMATION GLOBAL PART NUMBERING: WSBS8518L1000JTM4 (WSBS8518-M4, 0.000100 , 5 %, tray pack) W S B S 8 5 1 8 L 1 0 0 0 J T M 4 GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE SPECIAL WSBS8518 L = m J = 5 % K = bulk pack M4 = M4 tapped holes L0500 = 0.000050 K = 10 % T = tray pack L1000 = 0.000100 L1250 = 0.000125 L2500 = 0.000250 Revision: 11-Apr-17 Document Number: 30375 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 WSBS8518M4 www.vishay.com Vishay Dale DIMENSIONS in inches (millimeters) 3.346 0.016 85 0.4 A B 0.020 0.5 A B (2) 0.118 3 x 45 M4 x 0.7 tapped hole 0.708 0.006 0.020 0.5 B 18 0.15 0.010 0.010 0.25 0.25 x 45 (2) 0.078 1.98 x 45 (2) 2.362 60 0.323 8.2 0.020 0.5 A 0.118 3 0.079 2 A DERATING TOLERANCES ON DECIMALS 120 .xxx 0.005 .x 0.1 100 UNLESS OTHERWISE LISTED 80 60 RESISTANCE ELEMENT A B VALUE ( ) MATERIAL REFERENCE 0.005 0.13 40 50 Mn-Cu 0.145 3.7 0.357 9.1 20 100 Mn-Cu 0.360 9.1 0.571 14.5 0 125 Mn-Cu 0.454 11.5 0.666 16.9 - 65- 50 - 25 0 25 50 75 100 125 150 175 Ambient Temperature in C 70 250 Mn-Cu 0.900 22.86 1.112 28.2 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 5x 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: 11-Apr-17 Document Number: 30375 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 %