WSBS8518...35 www.vishay.com Vishay Dale Power Metal Strip Shunt Resistor With Sense Pins, Low TCR (Down to < 10 ppm/C), Very Low Value (100 , 500 , and 1000 ) FEATURES High power to resistor size ratio Proprietary processing technique produces extremely low resistance values Welded terminal to element construction Solid metal nickel-chrome alloy resistive element with unique design for low TCR (down to 10 ppm/C) Very low inductance (< 5 nH) Low thermal EMF (as low as < 1.25 V/C) PATENT(S): www.vishay.com/patents DESIGN SUPPORT TOOLS click logo to get started Material categorization: for definitions of compliance please see www.vishay.com/doc 99912 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 WSBS8518...35 8518 36 5, 10 100 to 1000 100 36.5 WSBS8518...35 8518 25 5, 10 100 to 1000 500 33.9 WSBS8518...35 8518 20 5, 10 100 to 1000 1000 31.8 Note (1) Other values may be available, contact factory TECHNICAL SPECIFICATIONS PARAMETER UNIT RESISTOR CHARACTERISTICS 65 for 100 Temperature coefficient ppm/C 10 for 500 25 for 1000 Operating temperature range C -65 to +170 Thermal EMF V/C < 1.25 Inductance nH < 5 1/2 Maximum current rating A (P/R) GLOBAL PART NUMBER INFORMATION GLOBAL PART NUMBERING: WSBS8518L5000JT35 (WSBS851835, 0.0005 , 5 %, tray pack) W S B S 8 5 1 8 L 5 0 0 0 J T 3 5 GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE SPECIAL WSBS8518 L = m J = 5 % K = bulk pack 35 = low TCR and L1000 = 0.000100 K = 10 % T = tray pack sense pins attached L5000 = 0.000500 1L000 = 0.001000 PATENT(S): www.vishay.com/patents This Vishay product is protected by one or more United States and International patents. Revision: 09-Mar-17 Document Number: 30355 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 WSBS8518...35 www.vishay.com Vishay Dale DIMENSIONS in inches (millimeters) (1) 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 40 100 Ni-Cr 0.120 3.05 0.135 3.43 500 Ni-Cr 0.615 15.62 0.695 17.65 20 1000 Ni-Cr 0.900 22.86 0.980 24.89 0 Note - 65- 50 - 25 0 25 50 75 100 125 150 175 (1) Ambient Temperature in C Minimum pull strength of 200 N 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 5x rated power for 5 s 0.5 % R Low temperature storage -65 C for 24 h 0.2 % 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 0.2 % R Vibration Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h 0.2 % 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 0.2 % R Revision: 09-Mar-17 Document Number: 30355 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 %