KOA SPEER ELECTRONICS, INC. SS-239 R8 AHA 4/11/14 Low Resistance Flat Chip Resistors Type SR73 CERTIFIED CERTIFIED 1. Scope This specification applies to chip resistors (SR73) produced by KOA Corporation. 2. Type Designation The type designation shall be in the following form: SR73 2B T TD 1R00 F Size Size Termination Material Packaging Nominal Resistance Tolerance 1H 1E 1J 2A 2B 2E W2H W3A 2H 3A T: Sn L: SnPb (1E, 1J, 2A, 2B, 2E, 2H, 3A) G: Au (1J, 2A, 2B: 0.1Ω -10Ω contact factory) 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 3. Dimensions and Structure 1H (0201) L c 1E (0402) W Solder Plating Ni Plating t Protective Coating d Resistive Inner Film Electrode All values less than 0.1Ω (100mΩ) are expressed in mΩ with “L” as decimal Example: 20mΩ = 20L (3-digit) Dimensions inches (mm) W c d L .039 +.004 -.002 .02 +.004 -.002 +0.1 ) -0.05 (0.5 +0.1 -0.05 ) (1.0 .031 +.006 -.004 .01±.004 (0.25±0.1) .063±.008 (1.6±0.2) 2A (0805) .079±.008 .049±.004 .016±.008 (2.0±0.2) (1.25±0.1) (0.4±0.2) 2B (1206) .063±.008 .126±.008 (1.6±0.2) (3.2±0.2) .102±.008 (2.6±0.2) 2H (2010) W2H (2010) 3A (2512) W3A (2512) 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) 1J (0603) 2E (1210) Ceramic Substrate D: ±0.5% F: ±1% G: ±2% J: ±5% ±1%: 3 significant figures + 1 multiplier “R” indicates decimal on value <100Ω Type (Inch Size Code) c ±2%, ±5%: 2 significant figures + 1 multiplier “R” indicates decimal on value <10Ω (0.8 +0.15 -0.1 ) .197±.008 .098±.008 (5.0±0.2) (2.5±0.2) .01±.004 .014±.002 (0.25±0.1) (0.35±0.05) .014±.004 .014±.004 .018±.004 (0.35±0.1) (0.35±0.1) (0.45±0.1) .012 +.008 -.004 (0.3 +0.2 -0.1 ) .02±.004 (0.5±0.1) .016 +.008 -.004 (0.4 +0.2 -0.1 ) .02±.012 (0.5±0.3) .026±.006 .024±.004 (0.65±0.15) (0.6±0.1) .016 +.008 -.004 (0.4 +0.2 -0.1 ) .248±.008 .122±.008 (6.3±0.2) (3.1±0.2) .026±.006 (0.65±0.15) PAGE 1 OF 6 Bolivar Drive ■ P.O. Box 547 ■ Bradford, PA 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. KOA SPEER ELECTRONICS, INC. SS-239 R8 4. Standard Applications Part Designation* Power Rating @ 70°C SR731H (0201) 0.1W SR731E (0402) 1/8W (.125W) 1/6W (.166W1) SR731J (0603) 1/5W (.2W) SR732A (0805) 1/4W (.25W) 1/3W (.33W1) SR732B (1206) 1/3W (.33W) 1/2W (.5W1) SR732E (1210) 1/2W (.5W) 2/3W (.66W1) SR732H/W2H2 (2010) 3/4W (.75W) SR733A/W3A (2512) 1W T.C.R. (ppm/°C) Max. Absolute Maximum Working Voltage Resistance Range E-24, E-96 E-24, E-96 (D±0.5%) (F±1%) 0 - ±500 — — 0 - ±400 ±200 ±250 ±300 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 1.0V ±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 Maximum Operating Overload Temperature Voltage Range (5 Secs. Max.) -55°C to 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 -55°C to +150°C * Parentheses indicate EIA package size codes. ** 1H, 1E (F: ±1%) E-24 values only. 1 Please contact factory for limitation of Surface Mount Temperature Rise. 2 SR73W3AS (2010 size, 1 Watt) with limited Resistance Range - contact factory for details. 5. Rating 5-1 Rating For temperature in excess of 70°C, the load shall be derated in accordance with the following figure. Derating Curve Surface Temperature Rise 100 180 80 140 60 1H Temperature Rise (°C) % Rated Power 160 1E, 1J, 2A, 2B, 2E, 2H, 3A, W2H, W3A 40 20 W3A (1W) W2H (.75W) 2E (.66W) 2B (.5W) 2A (.33W) 2E (.5W) 2B (.33W) 120 100 80 2A (.25W) 1E (.166W) 1J (.2W) 1H (.1W) 1E (.125W) 60 40 Measuring Point 20 0 -60 -40 -20 -55 0 20 0 80 100 120 140 160 70 125 150 Ambient Temperature (°C) 40 60 0 25 50 75 100 % Rated Power PAGE 2 OF 6 Bolivar Drive ■ P.O. Box 547 ■ Bradford, PA 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. KOA SPEER ELECTRONICS, INC. SS-239 R8 5-2 Voltage Rating Resistors shall have a rated direct-current (DC) continuous working voltage or approximate sine-wave root-mean-square (RMS) continuous working voltage at commercial-line frequency and waveform corresponding to the power rating, as determined from the following formula: Where: E = Rated voltage (V) P x R P = Rated power (W) R = Nominal resistance (Ω) E=√ In no case shall be rated DC or R.M.S. continuous working voltage be greater than the applicable maximum value. 6. Body and Marking Type Tolerance Coating Color Marking Color SR73 D (±0.5%) F (±1%) Indigo White/ 4 digit SR73 G (±2%) J (±5%) Indigo White/ 3 digit Marking: a effective number and a multiplier. R means a decimal point. 7. Marking Method 3 Digit D, F 4 digit This character indicate Ω unit and express 4 effective numbers. R means a decimal point. G, J 3 digit This character indicate Ω unit and express 3 effective numbers. R means a decimal point. 4 Digit R20 0.2 Ω R200 4R7 4.7 Ω 4R70 PAGE 3 OF 6 Bolivar Drive ■ P.O. Box 547 ■ Bradford, PA 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. KOA SPEER ELECTRONICS, INC. SS-239 R8 8. 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 ±(%+0.05Ω) 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 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, W2H, W3A:+150°C, 1000 hours 9. Recommended Land Dimensions 9-1 Reflow Soldering Type B A D Dimensions in inches (mm) Style Resistor Size 0.016 x 0.008 (0.4 x 0.2) 0.024 x 0.012 (0.6 x 0.3) 0.039 x 0.020 (1.0 x 0.5) 0.063 x 0.031 (1.6 x 0.8) 0.079 x 0.049 (2.0 x 1.25) A 0.005 (0.12) 0.010 (0.25) 0.020 (0.5) 0.039 (1.0) 0.051 (1.3) B 0.019 (0.48) 0.028 (0.7) 0.051 (1.3) 0.079 (2.0) 0.098 (2.5) C 0.007 (0.18) 0.012 (0.3) 0.012 (0.3) 0.024 (0.6) 0.041 (1.05) D 0.007 (0.18) 0.009 (0.225) 0.016 (0.4) 0.020 (0.5) 0.024 (0.6) 2B 0.126 x 0.063 (3.2 x 1.6) 0.087 (2.2) 0.157 (4.0) 0.055 (1.4) 0.035 (0.9 ) 2E 0.126 x 0.098 (3.2 x 2.5) 0.087 (2.2) 0.157 (4.0) 0.091 (2.3) 0.035 (0.9 ) 2H 0.197 x 0.098 (5.0 x 2.5) 0.138 (3.5) 0.248 (6.3) 0.091 (2.3) 0.055 (1.4 ) 3A 0.252 x 0.126 (6.4 x 3.2) 0.181 (4.6) 0.315 (8.0) 0.118 (3.0) 0.067 (1.7) 1F 1H C 1E 1J Soldering Pad SR73 2A Chip Resistor PAGE 4 OF 6 Bolivar Drive ■ P.O. Box 547 ■ Bradford, PA 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. KOA SPEER ELECTRONICS, INC. SS-239 R8 10. Taping 10-1 Taped Configuration Dimensions in inches (mm) End tape (Empty) Leader tape (Top tape) (Empty) 7.87 (200) min. 3.94 (100) min. 15.75 (400) min. 10-2 Dimensions of Punched Paper Tape 1.5 +0.1 -0 1.75±0.1 A B W Carrier Tape P1 (TP) T1 P1 T1 T1 2.0 4.0±0.1 Direction of feed (Notes) Dotted lines are applicable to only "TP" and "TB." Component Size (mm) Type L W T 1F 0.4 0.2 0.12 1H 0.6 0.3 0.23 1E 1 0.5 0.35 1J 1.6 0.8 0.45 2A 2 1.25 0.5 2B 3.2 1.6 0.6 2E 3.2 2.6 0.6 2H/W2H 5 2.5 0.6 3A/W3A 6.3 3.1 0.6 SR73 Taping (mm) Carrier Tape Quantity/ Reel (Pieces) A B W P1 T1 Reel Size TX TBL TA TC/TCM TPL* TP TP TD TDD TP TD TE TDD TED TD TE TDD TED TD TE TDD TED TE TED TE TED 40000 20000 35000 10000/15000 20000 10000 10000 5000 10000 10000 5000 4000 10000 10000 5000 4000 10000 10000 5000 4000 10000 10000 4000 10000 4000 10000 0.25±0.04 0.25±0.03 0.67±0.05 0.67±0.05 1.15±0.1 1.15±0.1 1.9±0.1 1.9±0.1 1.9±0.1 2.4±0.2 2.4±0.2 2.4±0.2 2.4±0.1 2.4±0.2 3.5±0.2 3.5±0.2 3.5±0.1 3.5±0.1 3.5±0.2 3.5±0.2 3.5±0.1 3.6±0.15 5.35±0.2 5.4±0.2 6.65±0.2 6.9±0.2 0.45±0.04 0.45±0.03 0.37±0.05 0.37±0.05 0.65±0.1 0.65±0.1 1.1±0.1 1.1±0.08 1.1±0.1 1.65±0.2 1.65±0.2 1.6±0.2 1.65±0.1 1.45±0.15 2±0.2 1.9±0.2 1.9±0.1 1.9±0.2 2.85±0.2 2.85±0.2 2.8±0.1 2.9±0.15 2.9±0.2 2.9±0.2 3.44±0.2 3.6±0.2 4.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 8.0±0.2 12.0±0.1 12.0±0.1 12.0±0.1 12.0±0.1 1.0±0.05 2±0.05 1±0.05 2±0.05 2±0.05 2±0.05 2±0.05 4.0±0.1 4.0±0.1 2±0.05 4.0±0.1 4.0±0.1 4.0±0.1 4.0±0.1 4.0±0.1 4.0±0.1 4.0±0.1 4.0±0.1 4.0±0.1 4.0±0.1 4.0±0.1 4.0±0.1 4.0±0.1 4.0±0.1 4.0±0.1 4.0±0.1 0.40±0.1 0.31+0.2/-0 0.42±0.1 0.42±0.1 0.42+0.2/-0 0.42+0.2/-0 0.6+0.2/-0 0.6+0.2/-0 0.6+0.2/-0 0.75+0.2/-0 0.75+0.2/-0 0.9±0.1 0.75+0.2/-0 0.65±0.1 0.75+0.2/-0 1.0±0.1 0.75+0.2/-0 1.0±0.1 0.75+0.2/-0 1.0±0.15 0.75+0.2/-0 1.0±0.1 1.0±0.15 0.85±0.1 1.0±0.15 0.85±0.1 180 178 178 178 178 178 178 178 255 178 178 178 255 255 178 178 255 255 178 178 255 255 178 255 178 255 PAGE 5 OF 6 Bolivar Drive ■ P.O. Box 547 ■ Bradford, PA 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. KOA SPEER ELECTRONICS, INC. SS-239 R8 11-5 Dimensions of Reel t Dimensions in inches (mm) w øa max. 7" 10" Size Code 1 H (0201) øa øb 1 E (0402) 2 B (1206) ød øc ød e 1.063 .118 (27 ± 2.0) (3.0 ± 0.5) .059 (1.5 ± 0.05) 0.512 (13 ± 0.5) 2.362 0.551 (60 ± 2.0) (14 ± 1.0) 2 H (2010) e t 7.008 10.039 (178) (255) 2 E (1210) øc w 3.150 0.394 (80 ± 2.0) (10 ± 1.0) 1 J (0603) 2 A (0805) øb .827 .079 (21 ± 2.0) (2.0 ± 0.5) 3 A (2512) Quantity per reel or reel size are requested to designate at the time of ordering. Contents on label: (1) Article number (SR73K2ATD J) (2) Quantity (3) Nominal Resistance and the chip marking [Ex: 0.2 Ω (R20)] (4) Customer’s code number (subject to change) (5) Production lot number (6) Manufacturer’s name 10. Packing Lot number (8 digits) 23 12 Production Date year, month 3001 Additional day number 11~22 January 2011 ~ December 2011 23~34 January 2012 ~ December 2012 11. Packaging Method Size Code TCM 7" Pressed TPL Punched TE 7" Embossed TP 7" Punched Paper Paper Plastic Paper TD Punched Paper TED 10" TDD 10" Punched Embossed Plastic Paper 1H (0201) 15,000 ––––– ––––– ––––– ––––– ––––– ––––– 1E (0402) ––––– 20,000 ––––– 10,000 ––––– ––––– ––––– 1J (0603) ––––– ––––– ––––– 10,000 5,000 ––––– 10,000 2A (0805) ––––– ––––– 4,000 10,000 5,000 10,000 10,000 2B (1206) ––––– ––––– 4,000 ––––– 5,000 10,000 10,000 2E (1210) ––––– ––––– 4,000 ––––– 5,000 10,000 10,000 2H (2010) ––––– ––––– 4,000 ––––– ––––– 10,000 ––––– W2H (2010 ––––– ––––– 4,000 ––––– ––––– 10,000 ––––– 3A (2512) ––––– ––––– 4,000 ––––– ––––– 10,000 ––––– W3A (2512) ––––– ––––– 4,000 ––––– ––––– 10,000 ––––– PAGE 6 OF 6 Bolivar Drive ■ P.O. Box 547 ■ Bradford, PA 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.