KOA SPEER ELECTRONICS, INC. Low Resistance Flat Chip Resistors Type SR73 SS-239 R9 AHA 2/23/16 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 T 2B Size TD 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) TC: 0201 only: 7" 2mm pitch pressed paper (TC: 10,000 pcs/reel, TCM: 15,000 pcs/reel) 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 ±2%, ±5%: 2 significant figures + 1 multiplier “R” indicates decimal on value <10Ω D: ±0.5% F: ±1% G: ±2% J: ±5% 3. Dimensions and Structure L c Type 1H (0201) 1E (0402) c 1J (0603) Solder Platin 2A (0805) Ni Platin t Protective Coating 2B (1206) Resistive Inner Film Electrode 2E (1210) Ceramic Substrate 2H (2010) ±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) Dimensions inches (mm) W c d L (Inch Size Code) W d F 1R00 .039 +.004 -.002 .02 +.004 -.002 +0.1 ) -0.05 (0.5 +0.1 -0.05 ) (1.0 .063±.008 (1.6±0.2) .031 +.006 -.004 (0.8 +0.15 -0.1 ) .01±.004 (0.25±0.1) .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) W3A (2512) .248±.008 .122±.008 (6.3±0.2) (3.1±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) .079±.008 .049±.004 .016±.008 (2.0±0.2) (1.25±0.1) (0.4±0.2) W2H (2010) 3A (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) .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 .026±.006 .024±.004 (0.5±0.3) (0.65±0.15) (0.6±0.1) .016 +.008 -.004 (0.4 +0.2 -0.1 ) .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 R9 4. Standard Applications Part Designation* Power Rating @ 70°C Rated Rated T.C.R. Ambient Terminal (ppm/°C) Temp. Part Temp. Max. SR731H (0201) 0.1W 70°C — SR731E (0402) 1/6W (.166W) 70°C 125°C SR731J (0603) 1/5W (.2W) 70°C 125°C 1/3W (.33W) 70°C 125°C 1/2W (.5W1) –– 105°C 1/3W (.33W) 70°C 125°C SR732A (0805) SR732B (1206) 1/2W (.5W ) –– 110°C 1/2W (.5W) 70°C 125°C 2/3W (.66W1) –– 110°C SR732H/W2H (2010) 3/4W (.75W) 70°C 125°C SR733A/W3A (2512) 1W 70°C 125°C 1 SR732E (1210) E-24, E-96 E-24, E-96 (F±1%) (D±0.5%) 0 - ±400 E-24 (G±2%) E-24 (J±5%) 0.27Ω - 10Ω 1Ω - 10Ω** — — — — — 0.51Ω - 10Ω** 0.2Ω - 0.47Ω** 0.1Ω - 0.18Ω** 0.51Ω - 10Ω 0.2Ω - 0.47Ω 0.1Ω - 0.18Ω 0.18Ω - 0.24Ω 0.51Ω - 10Ω 0.2Ω - 0.47Ω 0.1Ω - 0.18Ω ±200 — 0.1Ω - 10Ω 0.1Ω - 10Ω 0.1Ω - 10Ω ±100 ±200 ±500 ±800 ±100 ±200 ±500 ±800 ±100 ±200 ±500 ±800 ±100 ±200 ±500 ±800 ±100 ±200 ±500 ±1000 ±100 ±200 ±500 ±800 ±100 ±200 ±500 ±800 ±100 ±200 ±500 ±800 0.15Ω - 10Ω — — — 0.15Ω - 10Ω — — — 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 — — — 0.1Ω - 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 0.051Ω - 0.091Ω 0.030Ω - 0.047Ω — 0.1Ω - 10Ω 0.056Ω - 0.091Ω 0.030Ω - 0.051Ω — 0.1Ω - 10Ω 0.056Ω - 0.091Ω 0.030Ω - 0.051Ω — 0.047Ω - 10Ω 0.036Ω - 0.043Ω 0.024Ω - 0.033Ω — 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 0 - ±500 ±200 ±300 ±500 Absolute Maximum Maximum Overload Working Voltage Voltage (5 Secs. Max.) Resistance Range — 1.0V 2.5V 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 * Parentheses indicate EIA package size codes. ** 1H, 1E (F: ±1%) E-24 values only. Operating Temp: -55C to +125°C (SR731H only), -55°C to +150°C 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. 5. Rating Derating Curve SR73 2A (0.5W), SR73 2B (0.5W), SR73 2E (0.66W) For resistors operated at an ambient temperature of 70°C or above, a power rating shall be derated in accordance with the derating curve. 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. 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 R9 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 W R200 4R7 4.7 W 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 R9 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% 9. Recommended Land Dimensions 9-1 Reflow Soldering Type B A D 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 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) Dimensions in inches (mm) 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) Style 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 R9 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. Carrier Tape 1.75–0.1 1.5+0.1 -0 A B W 10-2 Dimensions of Punched Paper Tape P1 (TP) T1 P1 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 T1 T1 2.04.0–0.1 Direction of feed (Notes) Dotted lines are applicable to only "TP" and "TB." Carrier Tape Quantity/ Reel (Pieces) A B 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 Taping (mm) W P1 T1 Reel Size 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 R9 11-5 Dimensions of Reel t øa max. 7" 10" Size Code 1 H (0201) w øa 1 E (0402) øb 1 J (0603) 2 A (0805) 2 B (1206) 2 E (1210) øc e ød øb w t Dimensions in inches (mm) øc ød 3.150 0.394 (80 ± 2.0) (10 ± 1.0) 7.008 10.039 (178) (255) 2 H (2010) 1.063 .118 (27 ± 2.0) (3.0 ± 0.5) .059 0.512 (1.5 ± 0.05) (13 ± 0.5) 2.362 0.551 (60 ± 2.0) (14 ± 1.0) 3 A (2512) e .827 .079 (21 ± 2.0) (2.0 ± 0.5) 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)] 10. Packing Lot number (8 digits) 23 12 Production Date year, month (4) Customer’s code number (subject to change) (5) Production lot number (6) Manufacturer’s name 3001 Additional day number 47~58 January 2011 ~ December 2014 59~70 January 2012 ~ December 2015 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 ––––– ––––– ––––– 5,000 ––––– 10,000 1J (0603) ––––– ––––– ––––– 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.