1218 Reader's Spreads 6/19/02 1:51 PM Page 23 SR73 current sense resistors lo-ohm 1%, 2%, 5% tolerance thick film current sense resistor features * * * * * * RuO2 thick film resistor element Anti-leaching nickel barrier terminations 90/10 solder plated terminations, standard Lead-free terminations available Meets or exceeds EIA 575, EIA PDP-100, MIL-R-55342F Marking: Three or four digits on indigo protective coat, 1E size: no marking dimensions and construction L c Type c W Solder Plating Ni Plating t d Protective Coating Resistive Inner Film Electrode Ceramic Substrate Dimensions inches (mm) W c d (Inch Size Code) L 1E (0402) .039 +.004 -.002 (1.0 +0.1 -0.05 ) 1J (0603) .063.008 (1.60.2) 2A (0805) .079.008 .049.004 .016.008 (2.00.2) (1.250.1) (0.40.2) 2B (1206) 2E (1210) .063.008 .126.008 (1.60.2) (3.20.2) .102.008 (2.60.2) 2H (2010) .197.008 .098.008 (2.50.2) (5.00.2) 3A (2512) .248.008 .122.008 (3.10.2) (6.30.2) .02 (0.5 .01.004 (0.250.1) +.006 -.004 +0.15 ) -0.1 .014.004 .014.004 .018.004 (0.350.1) (0.350.1) (0.450.1) .031 (0.8 t +.004 -.002 +0.1 ) -0.05 .02.012 (0.50.3) .01.004 .014.002 (0.250.1) (0.350.05) .012 (0.3 .016 (0.4 +.008 -.004 +0.2 ) -0.1 .02.004 (0.50.1) +.008 -.004 +0.2 ) -0.1 .024.004 (0.60.1) ordering information Old Part # SR73 New Part # SR73 Type H 2B 2B Tempco For further information on packaging, please refer to Appendix A. Size 1E 1J 2A 2B 2E 2H 3A L Termination Material L: SnPb T: Sn T 1R00 F TD 1R00 F Packaging TP: 2mm pitch punched paper (0402 & 0603 only) TD: 7" paper tape TDD: 10" paper tape TE: 7" embossed plastic TED: 10" embossed plastic 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, 1% = 20L0 Tolerance F: 1% G: 2% J: 5% Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 24 KOA Speer Electronics, Inc. * Bolivar Drive * P.O. Box 547 * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com 1218 Reader's Spreads 6/19/02 1:51 PM Page 24 PMS 300 neg. Black neg. lo-ohm 1%, 2%, 5% tolerance thick film current sense resistor applications and ratings Part Designation* Power Rating @ 70C SR731E (0402) 0.063W SR731J (0603) 0.1W SR732A (0805) 0.125W SR732B (1206) 0.25W SR732E (1210) 0.5W SR732H (2010) 0.75W SR733A (2512) 1.0W T.C.R. (ppm/C) Max. Resistance Range** E-24, E-96 (F1%) E-24 (G2%) E-24 (J5%) 200 300 500 200 0.51 - 10*** 0.2 - 0.47*** 0.1 - 0.18*** 0.2 - 1.0 0.51 - 10 0.2 - 0.47 0.1 - 0.18 0.2 - 1.0 0.51 - 10 0.2 - 0.47 0.1 - 0.18 0.2 - 1.0 250 100 200 500 800 100 200 500 800 100 200 500 1000 100 200 500 800 100 200 500 800 0.1 - 0.196 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 0.18 -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- -- 0.1 - 9.1 -- -- -- 0.1 - 10 -- -- -- 0.1 - 10 -- -- 0.1 - 0.18 -- 0.1 - 10 0.051 - 0.091 0.030 - 0.047 -- 0.1 - 10 0.056 - 0.091 0.030 - 0.051 -- 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 * Parenthesis indicate EIA package size codes. ** See Appendix D for available decade values. Absolute Maximum Working Voltage Maximum Overload Voltage (5 Secs. Max.) 0.79V 1.98V 0.32V 0.79V 1.11V 2.79V 1.58V 3.95V 2.23V 5.59V 2.73V 6.84V 3.16V 7.90V Operating Temperature Range -55C to +155C *** 1E (F: 1%) E-24 values only. environmental applications Derating Curve Surface Temperature Rise 100 125 80 100 3A Temperature Rise (C) % Rated Power 2H 60 40 20 75 2E 50 2B 2A 1J 25 1E 0 -60 -40 -20 -55 0 20 80 100 120 140 160 70 155 Ambient Temperature (C) 40 60 0 0 25 50 75 100 % Rated Power Performance Characteristics Parameter Maximum R Thermal Shock 1.0% Low Temperature Operation 1.0% High Temperature Exposure 1.0% Short Time Overload 2.0% Resistance to Solder Heat 1.0% Terminal Strength-Bend 1.0% Moisture Resistance 2.0% Life 2.0% Pulse Limitation Curves are available at www.koaspeer.com Dielectric Withstanding Voltage 1E, 1J, 2A, 2B, 2E, 2H, 3A 100V, 100V, 400V, 400V, 400V, 400V, 400V Insulation Resistance 10,000 M Minimum Test Method MIL-STD-202, Method 107, -55C to +125C, 100 cycles MIL-R-55342 4.7.4, 1 hour @ -55C followed by 45 minutes of RCWV* MIL-R-55342 4.7.6, 100 hours @ 125C MIL-R-55342 4.7.5, 2.5 x RCWV for 5 seconds MIL-R-55342 4.7.7, 260C for 10 seconds 2mm min. deflection in either direction for 10 seconds MIL-STD-202, Method 103, 40C, 90 - 95% RH, 1000 hours MIL-STD-202, Method 108, 70C, 1000 hours @ RCWV, 1.5 hr ON, 0.5 hr OFF MIL-STD-202, Method 301 -- * RCWV = Rated Continuous Working Voltage. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. KOA Speer Electronics, Inc. * Bolivar Drive * P.O. Box 547 * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com 25 current sense resistors SR73