WSMS5515 Vishay Dale Power Metal Strip® Meter Shunt Resistor, Very Low Value (down to 0.00016 Ω) FEATURES • High power to resistor size ratio • 4-Terminal (Kelvin) connection design • Proprietary processing technique extremely low resistance values produces RoHS COMPLIANT • All welded construction • RoHS compliant, lead (Pb)-free construction • Very low inductance (< 0.5 nH) • Excellent frequency response to 50 MHz • Low thermal EMF (< 3 µV/°C) STANDARD ELECTRICAL SPECIFICATIONS GLOBAL MODEL POWER RATING P70 °C W TOLERANCE % RESISTANCE VALUE AVAILABLE µΩ WEIGHT (Typical) g 3.0 5.0 160, 200, 250, 300, 500 7.8 WSMS5515 TECHNICAL SPECIFICATIONS PARAMETER UNIT RESISTOR CHARACTERISTICS ppm/°C 160 µΩ, 200 µΩ and 250 µΩ = ± 225 300 µΩ and 500 µΩ = ± 175 Operating Temperature Range °C - 65 to + 170 Maximum Current Rating A (P/R)1/2 Temperature Coefficient GLOBAL PART NUMBER INFORMATION GLOBAL PART NUMBERING: WSMS5515L2500JK (WSMS5515, 0.00025 Ω, ± 5 %) W S M S 5 5 1 5 L 2 5 0 0 J K GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE SPECIAL WSMS5515 L = mΩ L1600 = 0.00016 Ω L2000 = 0.00020 Ω L2500 = 0.00025 Ω L3000 = 0.00030 Ω L5000 = 0.00050 Ω J = ± 5.0 % K = Bulk pack (Dash number) (up to 2 digits) From 1 - 99 as applicable www.vishay.com 42 For technical questions, contact: [email protected] Document Number: 30135 Revision: 15-Nov-07 WSMS5515 Power Metal Strip® Meter Shunt Resistor, Very Low Value (down to 0.00016 Ω) Vishay Dale DIMENSIONS in inches 1.441 1.005 0.156 0.079 CALIBRATION CUT 0.142 0.724 0.488 0.079 0.142 0.079 0.138 0.295 0.056 0.590 0.080 x 45° CHAH. (4) 1.575 2.165 ± 0.010 0.295 R 0.020 (2) R 0.020 (2) R 0.078 REF. (1) Rated Power in % Ø 0.244 THRU (2) R 0.028 (4) 120 TOLERANCES ON DECIMALS XXX ± 0.005 100 80 60 RESISTANCE VALUE (µΩ) RESISTOR THICKNESS (inches) ELEMENT MATERIAL 160 0.051 Mn-Cu 200 0.051 Mn-Cu 250 0.033 Mn-Cu 300 0.033 Mn-Cu 500 0.059 Fe-Cr 40 20 0 - 65 - 50 - 25 0 25 Derating 50 75 100 125 150 170 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 % ΔR Short Time Overload 5 x rated power for 5 s ± 0.5 % ΔR Low Temperature Operation - 65 °C for 45 min ± 0.5 % ΔR High Temperature Exposure 1000 h at + 170 °C ± 1.0 % ΔR Bias Humidity + 85 °C, 85 % RH, 10 % Bias, 1000 h ± 0.5 % ΔR Mechanical Shock 100 g’s for 6 ms, 5 pulses ± 0.5 % ΔR Vibration Frequency varied 10 to 2000 Hz in 1 min, 3 directions, 12 h ± 0.5 % ΔR Load Life 1000 h at + 70 °C, 1.5 h “ON”, 0.5 h “OFF” ± 1.0 % ΔR Moisture Resistance MIL-STD-202, Method 106, 0 % power, 7b not required ± 0.5 % ΔR Document Number: 30135 Revision: 15-Nov-07 For technical questions, contact: [email protected] www.vishay.com 43 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1