current sense SR73 lo-ohm 0.5%, 1%, 2%, 5% tolerance thick film current sense resistor EU features 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 inches (mm) (Inch Size Code) L Wc d t .024.001 .012.001 .004.002 .006.002 .009.001 1H (0201) (0.60.03) (0.30.03) (0.10.05) (0.150.05) (0.230.03) +.004 +.004 .039 .02 -.002 -.002 .01.004 .01.004 .014.002 dimensions and construction 1E (0402) +0.1 +0.1 (0.250.1) (0.250.1) (0.350.05) (1.0 ) (0.5 ) -0.05 -0.05 +.006 .031 .063.008 -.004 .014.004 .014.004 .018.004 L 1J (0603) c c +0.15 (1.60.2) (0.350.1) (0.350.1) (0.450.1) (0.8 ) -0.1 +.008 .012 .079.008 .049.004 .016.008 -.004 .02.004 2A (0805) (2.00.2) (1.250.1) (0.40.2) +0.2 (0.50.1) (0.3 ) W -0.1 .063.008 Solder 2B (1206) (1.60.2) .126.008 Plating +.008 .016 (3.20.2) .102.008 -.004 2E (1210) Ni t (2.60.2) +0.2 (0.4 ) Plating -0.1 2H (2010) .197.008 .098.008 Protective Resistive Inner d (5.00.2) (2.50.2) .026.006 .02.012 .024.004 W2H (2010) Coating Film Electrode (0.650.15) (0.50.3) (0.60.1) +.008 Ceramic .016 -.004 3A (2512) Substrate .248.008 .122.008 +0.2 (0.4 ) (6.30.2) (3.10.2) -0.1 .026.006 W3A (2512) (0.650.15) ordering information SR73 2B T TD 1R00 F Termination Nominal Type Size Packaging Tolerance Material Resistance TC: 0201 only: 7 2mm pitch pressed 1H T: Sn 2%, 5%: 2 significant figures D: 0.5% paper (TC: 10,000 pcs/reel, + 1 multiplier R indicates 1E L: SnPb (1E, F: 1% TCM: 15,000 pcs/reel) decimal on value <10 1J, 2A, 2B, 2E, 1J G:2% TPL:0402 only: 2mm pitch punch paper 2H, 3A) 1%: 3 significant figures 2A J: 5% TP: 0402, 0603, 0805: 7 2mm pitch + 1 multiplier R indicates G: Au (1J, 2A, 2B: punch paper 2B decimal on value <100 0.1 - 10 - TD: 0603, 0805, 1206, 1210: 7 4mm 2E contact factory) All values less than 0.1 pitch punched paper W2H (100m) are expressed in TE: 0805, 1206, 1210, 2010 & 2512: m with L as decimal W3A 7 embossed plastic Example: 20m = 20L 2H For further information on packaging, please (3-digit) refer to Appendix A 3A applications and ratings Power Rated Rated T.C.R. Resistance Range Part Rating Ambient Terminal (ppm/C) Designation* E-24, E-96 E-24, E-96 E-24 E-24 70C Temp. Part Temp. Max. (D0.5%) (F1%)** (G2%) (J5%) 0 ~ +400 0.27 - 10 1 - 10** SR731H 0.1W 70C (0201) 0 ~ +500 0.18 - 0.24 200 0.51 - 10** 0.51 - 10 0.51 - 10 SR731E 70C 125C 300 0.2 - 0.47** 0.2 - 0.47 0.2 - 0.47 1/6W (.166W) (0402) 500 0.1 - 0.18** 0.1 - 0.18 0.1 - 0.18 1/5W (.2W) 70C 200 1.02 - 10 1.1 - 10 1.1 - 10 SR731J 125C (0603) New 1/4W (.25W) 70C 200 0.1 - 1 0.1 - 1 0.1 - 1 125C Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/01/19 128 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) Power Rated Rated T.C.R. Resistance Range Part Rating Ambient Terminal (ppm/C) Designation* E-24, E-96 E-24, E-96 E-24 E-24 70C Temp. Part Temp. Max. (D0.5%) (F1%)** (G2%) (J5%) 100 0.15 - 10 0.1 - 10 200 0.1 - 10 0.1 - 10 1/3W (.33W) 70C 125C 500 0.051 - 0.091 SR732A 800 0.030 - 0.047 100 0.15 - 10 0.1 - 10 (0805) 200 0.1 - 10 0.1 - 10 1 1/2W (.5W ) 105C 500 0.051 - 0.091 800 0.030 - 0.047 100 0.15 - 10 0.1 - 10 200 0.1 - 10 0.1 - 10 1/3W (.33W) 70C 125C 500 0.056 - 0.091 800 0.030 - 0.051 SR732B 100 0.15 - 10 0.1 - 10 (1206) 200 0.1 - 10 0.1 - 10 1 1/2W (.5W ) 110C 500 0.056 - 0.091 800 0.030 - 0.051 100 0.1 - 10 200 0.1 - 10 0.047 - 10 1/2W (.5W) 70C 125C 500 0.036 - 0.043 1000 0.024 - 0.033 SR732E 100 0.1 - 10 (1210) 200 0.1 - 10 0.047 - 10 1 2/3W (.66W ) 110C 500 0.036 - 0.043 1000 0.024 - 0.033 100 0.1 - 10 SR732H/W2H 200 0.1 - 10 0.1 - 10 3/4W (.75W) 70C 125C 500 0.056 - 0.091 (2010) 800 0.033 - 0.051 100 0.1 - 10 SR733A/W3A 200 0.1 - 10 0.1 - 10 1W 70C 125C 500 0.056 - 0.091 (2512) 800 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 For resistors operated at a terminal part temperature of described for each size or above, a power rating shall be derated in of 70C or above, a power rating shall be derated accordance with the derating curve. 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. Temperature Rise SR73 1E-1J SR73 2A-2E SR73 W2H 100 100 300 2E 250 80 80 2B 1J 2A 1E 200 2B 1J 60 60 2E 1E 150 2A W3A 40 40 W2H 100 W3A 20 20 W2H 50 0 0 0 10 20 30540060 70 80 90 100 10 20 30540060 70 80 90 100 10 20 30540060 70 80 90 100 Measurement condition Power Rating Power Rating Power Rating Room temperature: 25C (%) (%) (%) PCB: FR-4t = 1.6mm Cu foil thickness: 35m Hot spot Regarding the temperature rise, the value of the temperature varies per conditions Terminal and board for use since the temperature is measured under our measuring conditions. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/11/19 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com 129 Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) current sense