33 3 WSBS8518P4 www.vishay.com Vishay Dale Power Metal Strip Battery Shunt Resistor With M4 Tapped Holes and Sn Plated Terminals, Very Low Value (50 , 100 , 125 , and 250 ) FEATURES High power to resistor size ratio Proprietary processing technique produces extremely low resistance values Tapped holes aid in PCB mounting and / or a location to attach voltage sense pins Sn plating assists with PCB mounting and corrosion protection All welded construction Very low inductance (< 5 nH) DESIGN SUPPORT TOOLS AVAILABLE Low thermal EMF (< 3 V/C) AEC-Q200 qualified 3D Models Design Tools Material categorization: for definitions of compliance please see www.vishay.com/doc 99912 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, WSBS8518P4 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: WSBS8518L1000JTP4 (WSBS8518-P4, 0.000100 , 5 %, tray pack) W S B S 8 5 1 8 L 1 0 0 0 J T P 4 GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE SPECIAL WSBS8518 L = m J = 5 % K = bulk pack P4 = M4 tapped holes L0500 = 0.000050 K = 10 % T = tray pack with plated terminals L1000 = 0.000100 L1250 = 0.000125 L2500 = 0.000250 Revision: 26-Feb-2019 Document Number: 30393 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 DD D WSBS8518P4 www.vishay.com Vishay Dale DIMENSIONS in inches (millimeters) 85 0.4 C 3.346 0.016 0.020 0.5 C B Calibration notch 3 0.4 M4 x 0.7 tapped holes 0.012 0.3 D D 0.00 to 0.160 deep 0.118 0.016 x 45 18 0.2 0.708 0.008 2 0.4 0.25 0.4 60 0.078 0.016 x 45 0.010 0.016 x 45 2.362 8.2 0.13 0.020 0.5 C 0.323 0.006 0.012 0.3 D 3 0.05 A 0.118 0.002 2 0.05 Punch radius 0.079 0.002 this side Note Plating on top / bottom is Sn 2.5 m to 8.0 m over Ni 0.5 m to 4.0 m, edges are not plated RESISTANCE ELEMENT A B TOLERANCES ON DECIMALS VALUE ( ) MATERIAL REFERENCE 0.005 ( 0.13) .xxx 0.005 (.x 0.1) 50 Mn-Cu 0.145 (3.68) 0.357 (9.07) UNLESS OTHERWISE LISTED 100 Mn-Cu 0.360 (9.14) 0.571 (14.50) 125 Mn-Cu 0.454 (11.5) 0.666 (16.9) 250 Mn-Cu 0.900 (22.86) 1.112 (28.2) DERATING PULSE CAPABILITY 120 click to get started 100 80 60 40 20 0 -65 -50 -25 0 25 50 75 100 125 150 175 Ambient Temperature in C www.vishay.com/resistors/large-shunt-power-metal-strip-calculator/ 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 5 x rated power for 5 s 0.5 % R Short time overload 10 x rated power for 5 s 1.0 % 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: 26-Feb-2019 Document Number: 30393 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 IILLLLUSTRAAATIVE PURRPPOSEESS OONLLLLLYY Rated Power in %