WSL2726 Vishay Dale Power Metal Strip® Resistors, Low Value, High Power, Surface Mount FEATURES • High power to foot print size ratio • Ideal for all types of current sensing, voltage division and pulse applications including switching and linear power supplies, instruments, power amplifiers and shunts RoHS COMPLIANT • Proprietary processing technique produces extremely low resistance values down to 0.0005 Ω • All welded construction • Solid metal Iron-Chrome or Manganese-Copper alloy resistive element with low TCR (< 20 ppm/°C) • Very low inductance 0.5 nH to 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 mΩ WEIGHT (Typical) g/1000 pieces WSL2726 3.0 1.0 0.5, 2, 3, 5 420 Notes • Power rating depends on the max. temp. at the solder point, component placement density and the substrate material • Part Marking: Model, Value, Tolerance, Date Code TECHNICAL SPECIFICATIONS PARAMETER UNIT WSL RESISTOR CHARACTERISTICS ppm/°C ± 75 over temperature of + 20 °C to + 60 °C Operating Temperature Range °C - 65 to + 170 Maximum Working Voltage V (P x R)1/2 Temperature Coefficient GLOBAL PART NUMBER INFORMATION GLOBAL PART NUMBERING: WSL2726L5000FEA W S L 2 7 2 6 L 5 0 0 0 F E A GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE SPECIAL WSL2726 L = mΩ L5000 = 0.0005 Ω 2L000 = 0.002 Ω 3L000 = 0.003 Ω 5L000 = 0.005 Ω F = ± 1.0 % EA = Lead (Pb)-free, tape/reel EK = Lead (Pb)-free, bulk (Dash number) (up to 2 digits) From 1 - 99 as applicable www.vishay.com 24 For technical questions, contact: [email protected] Document Number: 30131 Revision: 27-Aug-08 WSL2726 Power Metal Strip® Resistors, Low Value, High Power, Surface Mount Vishay Dale DIMENSIONS DIMENSIONS in inches [millimeters] MODEL WSL2726 L W H R S T U 0.272 ± 0.008 [6.9 ± 0.2] 0.260 + 0.012/- 0.008 [6.6 + 0.3/- 0.2] 0.117 ± 0.008 [3.0 ± 0.2] 0.039 ± 0.004 [1.0 ± 0.1] 0.028 ± 0.004 [0.7 ± 0.1] 0.016 ± 0.002 [0.4 ± 0.05] 0.078 ± 0.004 [2.0 ± 0.1] L W SOLDER PAD DIMENSIONS in inches [millimeters] MODEL WSL2726 U a b c d w 0.220 [5.6] 0.096 [2.44] 0.035 [0.89] 0.035 [0.89] 0.290 [7.4] Rated Power in % S T H R c b w d 120 100 80 60 a b 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 % + 0.0005 Ω) ΔR Short Time Overload 0.5, 2 and 3 mΩ - 5 x rated power for 5 s 5 mΩ - 3 x rated power for 5 s ± (0.5 % + 0.0005 Ω) ΔR Low Temperature Operation - 65 °C for 45 min ± (0.5 % + 0.0005 Ω) ΔR High Temperature Exposure 1000 h at + 170 °C ± (1.0 % + 0.0005 Ω) ΔR Bias Humidity + 85 °C, 85 % RH, 10 % Bias, 1000 h ± (0.5 % + 0.0005 Ω) ΔR Mechanical Shock 100 g’s for 6 ms, 5 pulses ± (0.5 % + 0.0005 Ω) ΔR Vibration Frequency varied 10 to 2000 Hz in 1 min, 3 directions, 12 h ± (0.5 % + 0.0005 Ω) ΔR Load Life 1000 h at + 70 °C, 1.5 h “ON”, 0.5 h “OFF” ± (1.0 % + 0.0005 Ω) ΔR Resistance to Solder Heat + 260 °C Solder, 10 - 12 s dwell, 25 mm/s emergence ± (0.5 % + 0.0005 Ω) ΔR Moisture Resistance MIL-STD-202, Method 106, 0 % power, 7b not required ± (0.5 % + 0.0005 Ω) ΔR PACKAGING REEL MODEL WSL2726 TAPE WIDTH DIAMETER PIECES/REEL CODE 16 mm/Embossed Plastic 330 mm/13" 1500 EA Note • Embossed Carrier Tape per EIA-481-2 Document Number: 30131 Revision: 27-Aug-08 For technical questions, contact: [email protected] www.vishay.com 25 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