SR73 lo-ohm 0.5%, 1%, 2%, 5% tolerance thick film current sense resistor EU features current sense * Products with lead-free terminations meet EU RoHS requirements. EU RoHS regulation is not intended for Pb-glass contained in electrode, resistor element and glass. * AEC-Q200 Qualified: 0402 (1E), 0603 (1J), 0805 (2A), 1206 (2B), 1210 (2E), 2010 (2H/W2H), 2512 (3A/W3A) Type dimensions and construction L c c W t (Inch Size Code) L 1H (0201) .024.001 (0.60.03) .039 Protective Coating +.004 -.002 (0.5 +0.1 -0.05 ) 1J (0603) .063.008 (1.60.2) .031 2A (0805) .079.008 (2.00.2) .049.004 (1.250.1) .126.008 (3.20.2) .063.008 (1.60.2) .102.008 (2.60.2) 2B (1206) Ni Plating 2E (1210) W2H (2010) Ceramic Substrate .02 (1.0 +0.1 -0.05 ) Solder Plating Resistive Inner Film Electrode .012.001 (0.30.03) 1E (0402) 2H (2010) d +.004 -.002 Dimensions inches (mm) W c d 3A (2512) .197.008 (5.00.2) +.006 -.004 (0.8 +0.15 ) -0.1 .098.008 (2.50.2) .006.002 (0.150.05) .009.001 (0.230.03) .01.004 (0.250.1) .01.004 (0.250.1) .014.002 (0.350.05) .014.004 (0.350.1) .014.004 (0.350.1) .018.004 (0.450.1) .016.008 (0.40.2) .012 (0.3 +.008 -.004 +0.2 ) -0.1 .016 +.008 -.004 .02.004 (0.50.1) (0.4 +0.2 -0.1 ) .02.012 (0.50.3) .026.006 (0.650.15) .016 .248.008 (6.30.2) t .004.002 (0.10.05) .122.008 (3.10.2) (0.4 .024.004 (0.60.1) +.008 -.004 +0.2 ) -0.1 .026.006 (0.650.15) W3A (2512) ordering information SR73 2B Type Size 1H 1E 1J 2A 2B 2E W2H W3A 2H 3A T TD Termination Material T: Sn L: SnPb (1E, 1J, 2A, 2B, 2E, 2H, 3A) G: Au (1J, 2A, 2B: 0.1 - 10 contact factory) 1R00 Packaging TC: 0201 only: 7" 2mm pitch pressed paper (TC: 10,000 pcs/reel, TCM: 15,000 pcs/reel) TPL:0402 only: 2mm pitch punch paper TP: 0402, 0603, 0805: 7" 2mm pitch punch paper TD: 0603, 0805, 1206, 1210: 7" 4mm pitch punched paper TDD: 0603, 0805, 1206, 1210: 10" paper tape TE: 0805, 1206, 1210, 2010 & 2512: 7" embossed plastic TED: 0805, 1206, 1210, 2010 & 2512: 10" embossed plastic For further information on packaging, please refer to Appendix A F Nominal Resistance 2%, 5%: 2 significant figures + 1 multiplier "R" indicates decimal on value <10 1%: 3 significant figures + 1 multiplier "R" indicates decimal on value <100 All values less than 0.1 (100m) are expressed in m with "L" as decimal Example: 20m = 20L (3-digit) Tolerance D: 0.5% F: 1% G: 2% J: 5% applications and ratings Part Designation* Power Rating @ 70C Rated Ambient Temp. Rated Terminal Part Temp. SR731H (0201) 0.1W 70C -- SR731E (0402) 1/6W (.166W) 70C 125C SR731J (0603) 1/5W (.2W) New 1/4W (.25W) 70C 70C 125C 125C T.C.R. (ppm/C) Max. 0 ~ +400 Resistance Range E-24, E-96 (D0.5%) E-24, E-96 (F1%)** E-24 (G2%) -- 1 - 10** -- -- 0.27 - 10 0 ~ +500 200 300 500 200 -- -- -- -- 0.51 - 10** 0.2 - 0.47** 0.1 - 0.18** 1.02 - 10 0.51 - 10 0.2 - 0.47 0.1 - 0.18 1.1 - 10 0.18 - 0.24 0.51 - 10 0.2 - 0.47 0.1 - 0.18 1.1 - 10 200 -- 0.1 - 1 0.1 - 1 0.1 - 1 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 148 E-24 (J5%) 10/26/18 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com SR73 lo-ohm 0.5%, 1%, 2%, 5% tolerance thick film current sense resistor applications and ratings (continued) Rated Ambient Temp. Rated Terminal Part Temp. 1/3W (.33W) 70C 125C 1/2W (.5W1) -- 105C 1/3W (.33W) 70C 125C 1/2W (.5W1) -- 110C 1/2W (.5W) 70C 125C 2/3W (.66W1) -- 110C SR732H/W2H (2010) 3/4W (.75W) 70C 125C SR733A/W3A (2512) 1W 70C 125C SR732A (0805) SR732B (1206) SR732E (1210) T.C.R. (ppm/C) Max. 100 200 500 800 100 200 500 800 100 200 500 800 100 200 500 800 100 200 500 1000 100 200 500 800 100 200 500 800 100 200 500 800 Resistance Range E-24, E-96 (D0.5%) 0.15 -- -- -- 0.15 -- -- -- 0.15 -- -- -- 0.15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10 10 10 10 E-24, E-96 (F1%)** E-24 (G2%) E-24 (J5%) 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 0.051 - 0.091 0.030 - 0.047 -- 0.1 - 10 0.051 - 0.091 0.030 - 0.047 -- 0.1 - 10 0.056 - 0.091 0.030 - 0.051 -- 0.1 - 10 0.056 - 0.091 0.030 - 0.051 -- 0.047 - 10 0.036 - 0.043 0.024 - 0.033 -- 0.047 - 10 0.036 - 0.043 0.024 - 0.033 -- 0.1 - 10 0.056 - 0.091 0.033 - 0.051 -- 0.1 - 10 0.056 - 0.091 0.039 - 0.051 * Parentheses indicate EIA package size codes. ** 1H, 1E (F: 1%) E-24 values only. Operating Temp: -55C to +125C (SR731H only), -55C to +150C If any questions should arise whether to use the "Rated Ambient Temperature" or the "Rated Terminal Part Temperature," please give priority to the "Rated Terminal Part Temperature." Prior to use and for more details refer to "Introduction of the derating curves on the terminal part temperature" in the beginning of the catalog. 1 Prior to use, refer to the "Higher Power Ratings" in the beginning of catalog. Rated voltage = Power rating x resistance value or max. working voltage, whichever is lower environmental applications Derating Curve SR73 2A (0.5W), SR73 2B (0.5W), SR73 2E (0.66W) 1E, 1J 2A: 0.33W 2B: 0.33W 2E: 0.5W W2H, W3A For resistors operated at an ambient temperature of 70C or above, a power rating shall be derated in accordance with the derating curve. For resistors operated at a terminal part temperature of described for each size or above, a power rating shall be derated in accordance with the derating curve. Please refer to "Introduction of the derating curve based on the terminal part temperature" on the beginning of our catalog before use. Performance Characteristics Parameter Resistance T.C.R. Overload (Short time) Resistance to Solder Heat Rapid Change of Temperature Moisture Resistance Endurance at 70C High Temperature Exposure Requirement R (%+0.005) Limit Typical Within specified -- tolerance Within specified -- T.C.R. 2% 0.5% 1H: 3%, 1H: 0.75% 1E~W3A: 1% 1E~W3A: 0.3% 1% 0.3% 1H: 3% 1% 1E~W3A: 2% 1H: 3% 1% 1E~W3A: 2% 1% 0.3% Test Method 25C +25C/-55C and +25C/+125C Rated voltage x 2.5 for 5 seconds 260C 5C, 10 seconds 1 second -40C (30 minutes), +125C (30 minutes), 100 cycles 40C 2C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 1H: +125C, 1000 hours; 1E, 1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A:+150C, 1000 hours Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 11/06/18 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com 149 current sense Power Rating @ 70C Part Designation*