SR www.vishay.com Vishay Dale Wirewound Resistors, Open Air, Current Sense, Low Value FEATURES • Open air design • Low resistance values for all types of current sensing, voltage division and pulse applications including switching and linear supplies, instrumentation and power amplifiers • All welded construction • Solid metal nickel-chrome or copper-nickel alloy resistive element • Solderable terminations • Very low inductance • AEC-Q200 qualified available (1) • Compliant to RoHS Directive 2002/95/EC Note (1) Flame retardance test may not be applicable to some resistor technologies. Notes * Pb containing terminations are not RoHS compliant, exemptions may apply ** Please see document “Vishay Material Category Policy”: www.vishay.com/doc?99902 STANDARD ELECTRICAL SPECIFICATIONS POWER RATING P70 °C W RESISTANCE RANGE TOLERANCE ±% SR1 1.0 0.005 to 0.03 1, 5 SR3 3.0 0.005 to 0.05 1, 5 SR5 5.0 0.004 to 0.05 1, 5 MODEL TECHNICAL SPECIFICATIONS PARAMETER UNIT SR RESISTOR CHARACTERISTICS ppm/°C ± 100 = 0.01 to 0.05 ; ± 175 = 0.0051 to 0.0099 ; ± 300 = 0.004 to 0.005 Operating Temperature Range °C - 65 to + 275 Maximum Continuous Current A (P/R)1/2 Temperature Coefficient GLOBAL PART NUMBER INFORMATION Global Part Numbering example: SR55L000JE14 S R 5 5 L 0 0 0 J E 1 4 GLOBAL MODEL VALUE TOLERANCE PACKAGING SPECIAL SR1 SR3 SR5 L = m (below 0.01 ) R = Decimal 5L000 = 0.005 R0100 = 0.01 F = ± 1.0 % J = ± 5.0 % K = ± 10 % E14 = Lead (Pb)-free bulk (Dash Number) (up to 3 digits) From 1 to 999 as applicable Revision: 12-Dec-11 B14 = Tin/lead bulk Document Number: 31067 1 For technical questions, contact: [email protected] 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 SR www.vishay.com Vishay Dale DIMENSIONS in inches [millimeters] SR1 SR3 and SR5 0.050 ± 0.010 [1.27 ± 0.254] 0.112 [2.85] max. B 0.312 [7.95] typ. C C E F A E A F DIMENSIONS in inches [millimeters] A B SR1 0.450 + 0.020 [11.43 + 0.508] - SR3 0.600 + 0.040/- 0.020 [15.24 + 1.020/- 0.508] SR5 0.800 + 0.040/- 0.020 [20.32 + 1.020/- 0.508] C E F 0.070 [1.78] 0.125 ± 0.030 [3.18 ± 0.762] 1.0 maximum [25.4 maximum] 0.065 + 0.010/- 0.005 [1.65 + 0.254/- 0.127] 0.040 ± 0.002 [1.02 ± 0.051] DERATING MATERIAL SPECIFICATIONS Element: Nickel-chrome or copper-nickel alloy depending on resistance value Terminals: Tinned copper Encapsulation: None Marking: None RATED POWER IN % MODEL 120 100 80 60 40 20 0 - 65 - 25 25 125 175 225 275 75 70 AMBIENT TEMPERATURE IN °C PERFORMANCE TEST CONDITIONS OF TEST TEST LIMITS Temperature Cycling - 55 °C to + 125 °C, 1000 cycles, 15 min at each extreme ± (1.0 % + 0.0005 ) R Low Temperature Storage - 65 °C for 24 h ± (0.5 % + 0.0005 ) R High Temperature Exposure 1000 h at + 275 °C ± (2.0 % + 0.0005 ) R Bias Humidity + 85 °C, 85 % RH, 10 % bias, 1000 h ± (1.0 % + 0.0005 ) R Mechanical Shock 100 g’s for 11 ms, 5 pulses ± (0.2 % + 0.0005 ) R Vibration Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h ± (0.2 % + 0.0005 ) R Load Life 1000 h at rated power, + 70 °C, 1.5 h “ON”, 0.5 h “OFF” ± (2.0 % + 0.0005 ) R Resistance to Solder Heat + 260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence ± (0.5 % + 0.0005 ) R Moisture Resistance MIL-STD-202 method 106, 0 % power, 7a and 7b not required ± (0.5 % + 0.0005 ) R Revision: 12-Dec-11 Document Number: 31067 2 For technical questions, contact: [email protected] 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 Legal Disclaimer Notice www.vishay.com Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. 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 in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. 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Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21 conform to JEDEC JS709A standards. Revision: 02-Oct-12 1 Document Number: 91000