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Technical content
32 KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, P A 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.12/01/08 SR73 lo-ohm 0.5%, 1%, 2%, 5% tolerance thick film current sense resistor
features
- RuO 2 thick film resistor element
- Anti-leaching nickel barrier terminations
- Meets or exceeds EIA 575, EIA PDP-100, MIL-R-55342F
- Marking: Three or four digits on indigo protective coat, 1E size: no marking, 1H: no marking, black protective coat
- Products with lead-free terminations meet EU RoHS requirements. Pb located in glass material, electrode and resistor element is exempt per Annex 1, exemption 5 of EU directive 2005/95/EC
ordering information
D: ±0.5% F: ±1% G:±2% J: ±5% T: Sn (Other termination styles may be available, please contact factory for options) G: Au (2A: 0.1Ω- 10Ω- contact factory) ±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) areexpressed in mΩ with “L” as decimal Example: 20mΩ = 20L0 W2H W3A 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" 2mm pitch punched paper TDD: 0603, 0805, 1206, 1210: 10" paper tape TE: 0805, 1206, 1210, 2010 & 2512: 7" punched plastic TED: 0805, 1206, 1210, 2010 & 2512: 10" punched plastic For further information on packaging, please refer to Appendix A SR73 Type Size Nominal Resistance ToleranceTermination Material Packaging New Part # 2B TD 1R00 FT dimensions and construction Protective Coating Inner Electrode Resistive Film Ceramic Substrate Solder Plating Ni Plating L cc W t d Type L .039+.004 -.002 (1.0+0.1 )-0.05 .01±.004 (0.25±0.1) .012+.008 -.004 (0.3+0.2)-0.1 .016+.008 -.004 (0.4+0.2)-0.1 .016+.008 -.004 (0.4+0.2)-0.1 .014±.002 (0.35±0.05) .018±.004 (0.45±0.1) .014±.004 (0.35±0.1) .02±.004 (0.5±0.1) .024±.004 (0.6±0.1) .01±.004 (0.25±0.1) .014±.004 (0.35±0.1) .016±.008 (0.4±0.2) .02±.012 (0.5±0.3) .009±.001 (0.23±0.03) .006±.002 (0.15±0.05) .026±.006 (0.65±0.15) .026±.006 (0.65±0.15) .004±.002 (0.1±0.05) .063±.008 (1.6±0.2) .102±.008 (2.6±0.2) .098±.008 (2.5±0.2) .126±.008 (3.2±0.2) .049±.004 (1.25±0.1) .031+.006 -.004 (0.8+0.15)-0.1 .02+.004 -.002 (0.5+0.1 )-0.05 .063±.008 (1.6±0.2) .079±.008 (2.0±0.2) .197±.008 (5.0±0.2) .024±.001 (0.6±0.03) (0402) (0603) (0805) (1206) .012±.001 (0.3±0.03) (0201) (2010) W2H (2010) .122±.008 (3.1±0.2) .248±.008 (6.3±0.2) (2512) W3A (2512) (Inch Size Code) Wc d t Dimensions inches(mm) (1210) resistors EU NEW
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33KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, P A 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.12/16/08 SR73 lo-ohm 0.5%, 1%, 2%, 5% tolerance thick film current sense resistor * Parenthesis indicate EIA package size codes. See Appendix D for available decade values. * 1H, 1E (F: ±1%) E-24 values only. 1 Please contact factory for limitation of Surface Mount Temp. Rise Absolute Maximum Working Voltage E-24, E-96 (F±1%) E-24 (G±2%) E-24 (J±5%) Part Designation* Maximum Overload Voltage (5 Secs. Max.) Operating Temperature Range Power Rating @ 70°C applications and ratings SR731E (0402) SR731J (0603) 0.51Ω - 10Ω* 0.2Ω - 0.47Ω* 0.1Ω - 0.18Ω* 0.51Ω- 10Ω 0.2Ω- 0.47Ω 0.1Ω- 0.18Ω 0.1Ω- 10Ω 0.1Ω- 10Ω 0.1Ω- 10Ω 0.51Ω- 10Ω 0.2Ω- 0.47Ω 1.11V 2.79V 1.41V 3.53V 0.1Ω- 0.18Ω ±200 ±3001/8W (.125W) 1/6W (.166W1) 1/5W (.2W) SR732A 1/3W (.33W1) ±500 ±200 Resistance RangeT.C.R. (ppm/°C) Max. -55°C to +150°C -55°C to +125°C 0.1Ω- 10Ω —±100 — — 0.1Ω - 10Ω±200 0.1Ω- 10Ω SR732B 1/2W (.5W1) 0.1Ω- 10Ω —±100 — — 0.1Ω - 10Ω±200 0.1Ω- 10Ω SR732H/W2H 0.1Ω- 10Ω —±100 — — 0.1Ω - 10Ω±200 0.1Ω- 10Ω SR733A/W3A (2512) 3.16V 7.90V1W 0.1Ω- 10Ω —±100 — — 0.1Ω - 10Ω±200 0.1Ω- 10Ω SR732E 2/3W (.66W1) 0.1Ω- 10Ω —±100 — — 0.1Ω - 10Ω±200 0.047Ω- 10Ω Derating Curve Performance Characteristics Surface Temperature Rise environmental applications% Rated Power 100 -60 -40 0 406 08 01 001 60 Ambient Temperature (°C) -55 120 125 -20 140 150 1E, 1J, 2A, 2B, 2E, 2H, 3A, W2H, W3A Temperature Rise (°C) 180 160 120 25 50 75 100 % Rated Power W3A (1W) W2H (.75W) 2E (.5W) 2A (.25W) 140 100 2E (.66W) 2B (.5W) 2A (.33W) 1J (.2W) 1E (.166W) 2B (.33W) Measuring Point1E (.125W 1H (.1W) PMS 300 neg. Black neg. resistors E-24, E-96 (D±0.5%) SR731H (0201) 1Ω- 10Ω — 0.47Ω- 10Ω 1.0V 2.5V0.1W 0~ ±400 — 0.15Ω- 10Ω 0.15Ω- 10Ω NEW Parameter Requirement ∆ R Limit Typical Test Method Resistance T.C.R. 25°C +25°C/-55°C and +25°C/+125°C Within specified tolerance Within specified T.C.R. Overload (Short time) Rated Voltage x 2.5 for 5 seconds±2% ±0.5% Resistance to Solder Heat 260°C ± 5°C, 10 seconds ± 1 second±3%*, ±1%** ±0.75%*, ±0.3%** Rapid Change of Temperature -40°C (30 minutes), +125°C (30 minutes), 100 cycles±1% ±0.3% Moisture Resistance 40°C ± 2°C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle±3%*, ±2%** ±1% Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle±3%*, ±2%** ±1% High Temperature Exposure 1H: +125°C, 1000 hours; 1E, 1J, 2A, 2B, 2E, W2H, W3A:+155°C, 1000 hours±1% ±0.3% * 1H ** 1E~W3A