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| WSLT3921 and WSLT5931 Vishay Dale Power Metal Strip(R) Resistors, High Temperature (275 C) Low Value (down to 0.001 ), 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 RoHS COMPLIANT * Proprietary processing technique produces extremely low resistance values, down to 0.001 * Specially selceted 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 H) * Excellent frequency response to 50 MHz * Low thermal EMF (< 3 V/C) STANDARD ELECTRICAL SPECIFICATIONS GLOBAL MODEL WSLT3921 WSLT5931 Note * Part Marking: no part marking on these parts POWER RATING P70 C 3.0 5.0 TOLERANCE % 1.0 and 5.0 1.0 and 5.0 RESISTANCE VALUES AVAILABLE m 2, 3, 4 1, 2, 3 WEIGHT (typical) g/1000 pieces 281 398 TECHNICAL SPECIFICATIONS PARAMETER Temperature Coefficient Operating Temperature Range Maximum Working Voltage UNIT ppm/C C A WSLT3921 AND WSLT5931 75 - 65 to + 275 (P/R)1/2 GLOBAL PART NUMBER INFORMATION GLOBAL PART NUMBERING: WSLT39212L000FEA W S L T 3 9 2 1 2 L 0 0 0 F E A SPECIAL Reserved for future specials GLOBAL MODEL WSLT3921 WSLT5931 RESISTANCE VALUE L = m 2L000 = 0.002 TOLERANCE CODE F = 1.0 % J = 5.0 % PACKAGING CODE EA = Lead (Pb)-free, tape/reel EK = Lead (Pb)-free, bulk www.vishay.com 18 For technical questions, contact: ww2bresistors@vishay.com Document Number: 30136 Revision: 03-Dec-07 WSLT3921 and WSLT5931 Power Metal Strip(R) Resistors, High Temperature (275 C) Low Value (down to 0.001 ), Surface Mount DIMENSIONS DIMENSIONS in inches [millimeters] MODEL L H L D W Vishay Dale W H 0.020 [0.5] T 0.080 0.010 [2.00 0.254] WSLT3921 0.394 0.010 0.205 0.010 [10.0 0.254] [5.20 0.254] WSLT5931 T 0.591 0.010 0.305 0.010 0.020 0.157 0.010 0.010 [15.0 0.254] [7.75 0.254] [0.5] [4.00 0.254] SOLDER PAD DIMENSIONS in inches [millimeters] d b 0.244 0.010 [6.20 0.254] 0.344 0.010 [8.75 0.254] L 0.220 0.005 [5.60 0.13] 0.220 0.005 [5.60 0.13] MODEL I b d WSLT3921 WSLT5931 0.106 0.010 [2.70 0.254] 0.205 0.010 [5.20 0.254] Rated Power in % 120 100 80 60 40 20 GLOBAL MODEL WSLT3921 WSLT3921 WSLT3921 WSLT5931 RESISTANCE VALUE m 2.0 3.0 4.0 1.0 2.0 3.0 "D" THICKNESS 0.0270 0.0170 0.0130 0.0330 0.0155 0.0105 ELEMENT MATERIAL Fe-Cr Fe-Cr Fe-Cr Fe-Cr Fe-Cr Fe-Cr 0 - 65 - 25 25 75 70 125 175 225 275 WSLT5931 WSLT5931 Derating Ambient Temperature in C PERFORMANCE TEST Thermal Shock Short Time Overload Low Temperature Storage High Temperature Exposure Bias Humidity Mechanical Shock Vibration Load Life Resistance to Solder Heat Moisture Resistance 5 x rated power for 5 s - 65 C for 45 min 1000 h at + 275 C + 85 C, 85 % RH, 10 % Bias, 1000 h 100 g's for 6 ms, 5 pulses Frequency varied 10 to 2000 Hz in 1 min, 3 directions, 12 h 1000 h at 70 C, 1.5 h "ON", 0.5 h "OFF" 260 C Solder, 10 - 12 s dwell, 25 mm/s emergence MIL-STD-202, Method 106, 0 % power, 7a and 7b not required CONDITIONS OF TEST - 55 C to + 150 C, 1000 cycles, 15 min at each extreme TEST LIMITS (1.0 % + 0.0005 ) R (0.5 % + 0.0005 ) R (0.5 % + 0.0005 ) R (1.0 % + 0.0005 ) R (0.5 % + 0.0005 ) R (0.5 % + 0.0005 ) R (0.5 % + 0.0005 ) R (1.0 % + 0.0005 ) R (0.5 % + 0.0005 ) R (0.5 % + 0.0005 ) R PACKAGING MODEL WSLT3921 WSLT5931 REEL TAPE WIDTH 16 mm/embossed plastic 16 mm/embossed plastic DIAMETER 330 mm/13" 330 mm/13" PIECES/REEL 3000 1500 CODE EA EA Note * Embossed carrier tape per EIA-481-2 Document Number: 30136 Revision: 03-Dec-07 For technical questions, contact: ww2bresistors@vishay.com www.vishay.com 19 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 |
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