WSLT2512 Vishay Dale Power Metal Strip® Resistors, High Temperature (275 °C) Low Value (down to 0.01 Ω), Surface Mount FEATURES • Ideal for all types of current sensing, voltage division and pulse applications including switching and linear power supplies, instruments and power amplifiers • Proprietary processing technique extremely low resistance values produces Pb-free e3 RoHS COMPLIANT • Specially selected and stabilized materials allow for high temperature derating (to + 275 °C) • All welded construction • Solid metal Nickel-Chrome alloy resistive element with low TCR (< 20 ppm/°C) • Very low inductance (< 5 ηH) • Excellent frequency response to 50 MHz • Low thermal EMF (< 3 µV/°C) STANDARD ELECTRICAL SPECIFICATIONS GLOBAL MODEL RESISTANCE RANGE Ω POWER RATING P70 °C W ± 0.5 % ± 1.0 % WEIGHT (Typical) g/1000 pcs 1.0 0.01 - 0.50 0.01 - 0.50 63.6 WSLT2512 * Part Marking: DALE, Value, Tolerance Code TECHNICAL SPECIFICATIONS PARAMETER UNIT WSLT2512 ppm/°C ± 75 Inductance ηH <5 Operating temperature range °C - 65/+ 275 Max. Continuous Current A (P/R)1/2 Temperature Coefficient GLOBAL PART NUMBER INFORMATION New Global Part Numbering: WSLT2512R0100FEA W S L T 2 5 1 2 R 0 1 0 0 F E A GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKING CODE SPECIAL WSLT2512 L = Milliohm* R = Decimal 4L000 = 0.004 Ω R0100 = 0.01 Ω D = ± 0.5 % F = ± 1.0 % EA = Lead (Pb)-free, Tape/Reel EK = Lead (Pb)-free,Bulk Reserved for future specials * use “L” for resistance values < 0.01 Ω www.vishay.com 1 For technical questions contact [email protected] Document Number: 30121 Revision: 20-Jun-06 WSLT2512 Power Metal Strip® Resistors, High Temperature (275 °C) Low Value (down to 0.01 Ω), Surface Mount Vishay Dale DIMENSIONS DIMENSIONS in inches [millimeters] H MODEL L W WSLT2512 T L Rated Power in % T SOLDER PAD DIMENSIONS in inches [millimeters] a b l 0.083 0.145 0.160 [1.65] [3.68] [4.06] b WSLT2512 a H [6.35 ± 0.254] [3.18 ± 0.254] [0.635 ± 0.254] [0.762 ± 0.254] MODEL l W 0.250 ± 0.010 0.125 ± 0.010 0.025 ± 0.010 0.030 ± 0.010 120 100 80 60 40 20 0 - 65 - 25 25 Derating 75 125 70 175 225 275 Ambient Temperature in °C PERFORMANCE TEST Thermal Shock CONDITIONS OF TEST - 55 °C to + 150 °C, 1000 cycles, 15 minutes at each extreme TEST LIMITS ± 0.5 % ΔR Short Time Overload 5 × rated power for 5 seconds ± 0.5 % ΔR Low Temperature Operation - 65 °C for 45 minutes ± 0.5 % ΔR High Temperature Exposure 1000 hours at + 275 °C ± 1.0 % ΔR Bias Humidity + 85 °C, 85 % RH, 10 % Bias, 1000 hours ± 0.5 % ΔR Mechanical Shock 100 g’s for 6 milliseconds, 5 pulses ± 0.5 % ΔR Vibration Frequency varied 10 to 2000 Hz in one minute, 3 directions, 12 hours ± 0.5 % ΔR Load Life at 70 °C 1000 hours, 1.5 hrs “ON”, 0.5 hours “OFF” ± 1.0 % ΔR Load Life at 150 °C 1000 hours, 1.5 hrs “ON”, 0.5 hours “OFF” ± 1.0 % ΔR Resistance to Solder Heat 260 °C Solder, 10 - 12 second dwell, 25 mm/second emergence ± 0.5 % ΔR Moisture Resistance MIL-STD-202, Method 106, 0 % power, 7b not required ± 1.0 % ΔR PACKING REEL MODEL WSLT2512 TAPE WIDTH 12 mm/Embossed Plastic DIAMETER 178 mm/7" PIECES/REEL 2000 CODE EA Embossed Carrier Tape per EIA-481-2 Document Number: 30121 Revision: 20-Jun-06 For technical questions contact [email protected] www.vishay.com 2 Legal Disclaimer Notice Vishay Notice Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Vishay for any damages resulting from such improper use or sale. Document Number: 91000 Revision: 08-Apr-05 www.vishay.com 1