resistors SR73 lo-ohm 0.5%, 1%, 2%, 5% tolerance thick film current sense resistor EU features • Marking: 1H: no marking on black protective coating 1E, 1J: No marking on indigo protective coating. 2A~W3A: three or four digit marking on indigo protective coating. • 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) dimensions and construction L c 1H (0201) c W Solder Plating Ni Plating t d Protective Coating Type Resistive Inner Film Electrode 1E (0402) 1J (0603) 2A (0805) 2B (1206) Ceramic Substrate 2E (1210) 2H (2010) W2H (2010) 3A (2512) W3A (2512) ordering information New Part # SR73 2B Type Size 1H 1E 1J 2A 2B 2E W2H W3A 2H 3A T Termination Material T: Sn L: SnPb (1E, 1J, 2A, 2B, 2E, 2H, 3A) G: Au (1J, 2A, 2B: 0.1Ω - 10Ω contact factory) L (Inch Size Code) Dimensions inches (mm) W c d +.004 -.002 +0.1 ) -0.05 .039 .02 (1.0 (0.5 .063±.008 (1.6±0.2) +.004 -.002 +0.1 ) -0.05 .01±.004 (0.25±0.1) +.006 -.004 +0.15 ) -0.1 .014±.004 .014±.004 .018±.004 (0.35±0.1) (0.35±0.1) (0.45±0.1) .031 (0.8 .079±.008 .049±.004 .016±.008 (2.0±0.2) (1.25±0.1) (0.4±0.2) .063±.008 .126±.008 (1.6±0.2) (3.2±0.2) .102±.008 (2.6±0.2) .197±.008 .098±.008 (5.0±0.2) (2.5±0.2) .01±.004 .014±.002 (0.25±0.1) (0.35±0.05) .012 (0.3 .016 (0.4 .02±.012 (0.5±0.3) TD Packaging TCM: 0201 only: 7" 2mm pitch pressed paper 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 .02±.004 (0.5±0.1) +.008 -.004 +0.2 ) -0.1 .026±.006 .024±.004 (0.65±0.15) (0.6±0.1) .016 (0.4 .248±.008 .122±.008 (6.3±0.2) (3.1±0.2) +.008 -.004 +0.2 ) -0.1 +.008 -.004 +0.2 ) -0.1 .026±.006 (0.65±0.15) 1R00 Nominal Resistance ±2%, ±5%: 2 significant figures + 1 multiplier “R” indicates decimal on value <10Ω ±1%: 3 significant figures + 1 multiplier “R” indicates decimal on value <100Ω All values less than 0.1Ω (100mΩ) are expressed in mΩ with “L” as decimal Example: 20mΩ = 20L (3-digit) Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 48 t .024±.001 .012±.001 .004±.002 .006±.002 .009±.001 (0.6±0.03) (0.3±0.03) (0.1±0.05) (0.15±0.05) (0.23±0.03) F Tolerance D: ±0.5% F: ±1% G: ±2% J: ±5% 12/16/14 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com lo-ohm 0.5%, 1%, 2%, 5% tolerance thick film current sense resistor applications and ratings Part Designation* SR731H (0201) Power Rating @ 70°C T.C.R. (ppm/°C) Max. 0 - ±500 0.1W SR731E (0402) SR731J (0603) SR732A (0805) SR732H/W2H2 (2010) — E-24 (G±2%) — E-24 (J±5%) 0.18Ω - 0.24Ω — 1Ω - 10Ω** 0.51Ω - 10Ω** 0.2Ω - 0.47Ω** 0.1Ω - 0.18Ω** 0.51Ω - 10Ω 0.2Ω - 0.47Ω 0.1Ω - 0.18Ω 0.27Ω - 10Ω 0.51Ω - 10Ω 0.2Ω - 0.47Ω 0.1Ω - 0.18Ω 1/8W (.125W) 1/6W (.166W1) 1/5W (.2W) ±200 — 0.1Ω - 10Ω 0.1Ω - 10Ω 0.1Ω - 10Ω ±100 ±200 ±500 ±800 ±100 ±200 ±500 ±800 ±100 ±200 ±500 ±1000 ±100 ±200 ±500 ±800 ±100 ±200 ±500 ±800 0.15Ω - 10Ω — — — 0.15Ω - 10Ω — — — — — — — — — — — — — — — 0.1Ω - 10Ω — — — 0.1Ω - 10Ω — — — 0.1Ω - 10Ω — — — 0.1Ω - 10Ω — — — 0.1Ω - 10Ω — — — — 0.1Ω - 10Ω — — — 0.1Ω - 10Ω — — — 0.1Ω - 10Ω — — — 0.1Ω - 10Ω — — — 0.1Ω - 10Ω — — — 0.1Ω - 10Ω 0.051Ω - 0.091Ω 0.030Ω - 0.047Ω — 0.1Ω - 10Ω 0.056Ω - 0.091Ω 0.030Ω - 0.051Ω — 0.047Ω - 10Ω 0.036Ω - 0.043Ω 0.024Ω - 0.033Ω — 0.1Ω - 10Ω 0.056Ω - 0.091Ω 0.033Ω - 0.051Ω — 0.1Ω - 10Ω 0.056Ω - 0.091Ω 0.039Ω - 0.051Ω 1/3W (.33W) 1/2W (.5W1) SR732E (1210) E-24, E-96 E-24, E-96 (D±0.5%) (F±1%) 0 - ±400 ±200 ±250 ±300 1/4W (.25W) 1/3W (.33W1) SR732B (1206) Resistance Range 1/2W (.5W) 2/3W (.66W1) 3/4W (.75W) SR733A/W3A (2512) 1W — — — Absolute Maximum Rated Operating Maximum Overload Terminal Temp. Working Voltage Part Temp. Range Voltage (5 Secs. Max.) -55°C to 1.0V 2.5V — +125°C 1.11V 2.79V 1.41V 3.53V 1.58V 3.95V 1.81V 4.54V 2.23V 5.59V 2.73V 6.84V 3.16V 7.90V 125°C -55°C to +150°C * Parentheses indicate EIA package size codes. ** 1H, 1E (F: ±1%) E-24 values only. 1 Please refer to the “Higher Power Ratings” statement in the beginning of the catalog. Contact KOA prior to usage. 2 SR73W3AS (2010 size, 1 Watt) with limited Resistance Range - contact factory for details. Rated ambient temperature: +70°C Rated voltage = √Power rating x resistance value or max. working voltage, whichever is lower environmental applications Derating Curve 80 80 60 1H 1E, 1J, 2A, 2B, 2E, 2H, 3A, W2H, W3A 40 % Rated Power 100 % Rated Power 100 1E, 1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A 60 40 20 20 0 -60 -40 -20 -55 0 20 40 60 80 100 120 140 160 70 125 150 Ambient Temperature (°C) For resistors operated at an ambient temperature of 70°C or above, a power rating shall be derated in accordance with the derating curve. Performance Characteristics Parameter Resistance T.C.R. Overload (Short time) Resistance to Solder Heat Rapid Change of Temperature Moisture Resistance Endurance at 70°C High Temperature Exposure Requirement ∆ R ±(%+0.005Ω) 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% 0 -60 -40 -20 -55 0 20 40 60 80 100 120 140 160 125 150 Terminal Part Temperature (°C) 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. Test Method 25°C +25°C/-55°C and +25°C/+125°C Rated voltage x 2.5 for 5 seconds 260°C ± 5°C, 10 seconds ± 1 second -40°C (30 minutes), +125°C (30 minutes), 100 cycles 40°C ± 2°C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 1H: +125°C, 1000 hours; 1E, 1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A:+150°C, 1000 hours Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/05/14 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 49 resistors SR73