SS-239 R4 12/5/07 10:11 AM Page 1 KOA SPEER ELECTRONICS, INC. SS-239 R4 AHA 12/05/07 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 1E 1J 2A 2B 2E 2H 3A T: Sn (Other termination styles may be available, please contact factory for options) ±2%, ±5%: 2 significant figures + 1 multiplier “R” indicates decimal on value <10Ω D: ±0.5% F: ±1% G: ±2% J: ±5% TP: 2mm Pitch Punched Paper Tape (0402, 0603 & 0805) TD: 7" Paper Tape (0603, 0805, 1206 & 1210) TDD: 10" Paper Tape (0603, 0805, 1206 &1210) TE: 7" Punched Plastic (0805, 1206, 1210, 2010 & 2512) TED: 10" Punched Plastic (0805, 1206, 1210, 2010 & 2512) 3. Dimensions and Structure 3-1 Dimensions L c c 1E (0402) Solder Plating Ni Plating Protective Coating d All values less than 0.1Ω (100mΩ) are expressed in mΩ with “L” as decimal Example: 20mΩ = 20L0 Dimensions inches (mm) W c d Type (Inch Size Code) W t ±1%: 3 significant figures + 1 multiplier “R” indicates decimal on value <100Ω Resistive Inner Film Electrode Ceramic Substrate L .039 +.004 -.002 t .02 +.004 -.002 (1.0 +0.1 -0.05 ) .01±.004 .01±.004 .014±.002 (0.25±0.1) (0.25±0.1) (0.35±0.05) (0.5 +0.1 -0.05 ) 1J (0603) +.006 .063±.008 .031 -.004 .014±.004 .014±.004 .018±.004 (1.6±0.2) (0.8 +0.15 ) (0.35±0.1) (0.35±0.1) (0.45±0.1) -0.1 2A (0805) .079±.008 .049±.004 .016±.008 (2.0±0.2) (1.25±0.1) (0.4±0.2) 2B (1206) 2E (1210) .063±.008 .126±.008 (1.6±0.2) (3.2±0.2) .102±.008 (2.6±0.2) 2H (2010) .197±.008 .098±.008 (5.0±0.2) (2.5±0.2) 3A (2512) .248±.008 .122±.008 (6.3±0.2) (3.1±0.2) .012 +.008 -.004 (0.3 +0.2 -0.1 ) .02±.004 (0.5±0.1) .016 +.008 -.004 .02±.012 (0.5±0.3) (0.4 +0.2 -0.1 ) .024±.004 (0.6±0.1) .025±.005 (0.65±0.15) PAGE 1 OF 8 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. SS-239 R4 12/5/07 10:11 AM Page 2 KOA SPEER ELECTRONICS, INC. SS-239 R4 4. Standard Applications Part Designation* Power Rating @ 70°C T.C.R. (ppm/°C) Max. SR731E (0402) 1/8W (.125W) 1/6W (.166W2) ±200 ±300 ±500 — — — SR731J (0603) 1/5W (.2W) ±200 ±100 ±200 ±500 ±800 ±100 ±200 ±500 ±800 ±100 ±200 ±500 ±1000 ±100 ±200 ±500 ±800 ±100 ±200 ±500 ±800 SR732A (0805) 1/4W (.25W) 1/3W (.33W2) SR732B (1206) 1/3W (.33W) 1/2W (.5W2) SR732E (1210) 1/2W (.5W) 2/3W (.66W2) SR732H (2010) 3/4W (.75W) SR733A (2512) 1W Absolute Maximum Working Voltage Resistance Range** E-24, E-96 E-24, E-96 (D±0.5%) (F±1%) Maximum Operating Overload Temperature Voltage Range (5 Secs. Max.) E-24 (G±2%) E-24 (J±5%) 0.51Ω - 10Ω*** 0.2Ω - 0.47Ω*** 0.1Ω - 0.18Ω*** 0.51Ω - 10Ω 0.2Ω - 0.47Ω 0.1Ω - 0.18Ω 0.51Ω - 10Ω 0.2Ω - 0.47Ω 0.1Ω - 0.18Ω 1.11V 2.79V — 0.1Ω - 10Ω 0.1Ω - 10Ω 0.1Ω - 10Ω 1.41V 3.53V 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 1.58V 3.95V 1.81V 4.54V 2.23V 5.59V 2.73V 6.84V 3.16V 7.90V * Parenthesis indicate EIA package size codes. ** See Appendix D for available decade values. 1 Power Rating for SR731E 0.91Ω - 10Ω = 1/10 (0.1W) 2 Please contact factory for limitation of Surface Mount Temp. Rise -55°C to +150°C *** 1E (F: ±1%) E-24 values only. 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 Temperature Rise (°C) % Rated Power 160 1J, 2A, 2B, 2E, 2H, 3A 40 20 1E 0 -60 -40 -20 -55 0 20 W2H (.75W) 2E (.66W) 2B (.5W) 2A (.33W) 2E (.5W) 2B (.33W) 120 100 80 2A (.25W) 1E (.166W) 1J (.2W) 1E (.125W) 60 40 Measuring Point 20 0 80 100 120 140 160 70 150 155 Ambient Temperature (°C) 40 W3A (1W) 60 0 25 50 75 100 % Rated Power PAGE 2 OF 8 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. SS-239 R4 12/5/07 10:11 AM Page 3 KOA SPEER ELECTRONICS, INC. SS-239 R4 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 4 Digit 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. R20 0.2 Ω R200 4R7 4.7 Ω 4R70 PAGE 3 OF 8 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. SS-239 R4 12/5/07 10:11 AM Page 4 KOA SPEER ELECTRONICS, INC. SS-239 R4 8. Characteristics 8-1 Mechanical Characteristics Item Requirement Test Methods (JIS C 5202) Withstanding Soldering Heat No visual damage ± 1.0% 6.10 260°C ± 5°C 10 ± 1 sec. Solderability More than 95% of the surface of the termination must be covered new solder 6.11 230°C ± 5°C 3 ± 0.5 sec. Termination Strength ± 1.0% 6.1.4 1) Bending 2A, 2B Circuit board bending 5mm Circuit board bending 2mm 2) Shear 3) Pull-off strength Vibration ± 0.5% 6.3 Condition A Each direction / 2hrs Withstanding Solvent No visual & mechanical damage 1) 4.2 and 4.9 2) MIL-STD-202F Test method 215 8-2 Electrical Characteristics Item Requirement Test Methods (JIS C 5202) Resistance Within tolerance 5.1 Measuring Voltage A, 25 °C Resistance of Temperature Coefficient Within specified R.T.C -55°C/125°C 5.2 Condition B Short Time Overload ± 2.0% 5.5 Condition A Intermittent Overload ± 5.0% 5.8 Applied Voltage: RV x 2.5 Insulation Above 10 4 MΩ 5.5 500V DC The following sketch: \ PAGE 4 OF 8 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. SS-239 R4 12/5/07 10:11 AM Page 5 KOA SPEER ELECTRONICS, INC. SS-239 R4 8-2 Electrical Characteristics (Continued) Item Requirement Test Methods (JIS C 5202) Insulation Above 10 3 MΩ 5.6 500V DC The following sketch: \ Withstanding Voltage ± 0.5% 5.7 500V DC 60 ± 10/0 sec. The following sketch: \ Temperature Rise (Rated Load) 1) Surface temp. rise: 100°C≥ 2) ΔR ± 0.5% 5.4 1) Test board 90mm x 10mm x 1.6mm 2) Recommended land dimensions 8-3 Environmental Characteristics Item Requirement Test Methods (JIS C 5202) Thermal Shock (Air to Air) ± 1.0% -40°C 30 minutes 125°C 30 minutes 100 cycles High Temperature Exposure ± 1.0% 7.2 125 ± 3°C 1000 hrs. Load Life in Humidity ± 2.0% 7.9 40 ± 2°C 90 ~ 95% RH 1000 hrs. Load Life ± 2.0% 7.10 70 ± 3°C 1000 hrs. PAGE 5 OF 8 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. SS-239 R4 12/5/07 10:11 AM Page 6 KOA SPEER ELECTRONICS, INC. SS-239 R4 9. Recommended Land Dimensions 9-1 Flow Soldering Dimensions in inches (mm) Type Style B A D Resistor Size 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 0.020 (0.5) 0.039 (1.0) 0.051 (1.3) B 0.059 (1.5) 0.094 (2.4) 0.122 (3.1) C 0.020 (0.5) 0.031 (0.8) 0.049 (1.25) D 0.020 (0.5) 0.028 (0.7) 0.035 (0.9) 2B 0.126 x 0.063 (3.2 x 1.6) 0.087 (2.2) 0.173 (4.4) 0.063 (1.6) 0.043 (1.1 ) 2E 0.126 x 0.098 (3.2 x 2.5) 0.087 (2.2) 0.173 (4.4) 0.098 (2.5) 0.043 (1.1 ) 2H 0.197 x 0.098 (5.0 x 2.5) 0.138 (3.5) 0.248 (6.3) 0.098 (2.5) 0.055 (1.4 ) 3A 0.252 x 0.126 (6.4 x 3.2) 0.181 (4.6) 0.315 (8.0) 0.126 (3.2) 0.067 (1.7) 1E 1J C 2A Soldering Pad SR73 Chip Resistor 9-2 Reflow Soldering Dimensions in inches (mm) Type B A D Style Resistor Size 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 0.020 (0.5) 0.039 (1.0) 0.051 (1.3) B 0.051 (1.3) 0.079 (2.0) 0.098 (2.5) C 0.012 (0.3) 0.024 (0.6) 0.041 (1.05) D 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) 1E 1J C 2A SR73 Soldering Pad Chip Resistor 10. Taping 10-1 Taped Configuration Dimensions in inches (mm) End tape (Empty) Leader tape (Top tape) (Empty) 7.87 (200) min. Bolivar Drive ■ P.O. Box 547 ■ 15.75 (400) min. 1.96 (50) min. Bradford, PA 16701 ■ USA ■ 814-362-5536 ■ Fax 814-362-8883 PAGE 6 OF 8 ■ 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. SS-239 R4 12/5/07 10:11 AM Page 7 KOA SPEER ELECTRONICS, INC. SS-239 R4 10-2 Dimensions of Punched Paper Tape 1.5 +0.1 -0 A B W 1.75±0.1 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 SR73 L W T 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 5 2.5 0.6 3A 6.3 3.1 0.6 Taping (mm) Carrier Tape Quantity/ Reel (Pieces) A B W P1 T1 Reel Size TP TP TD TDD TP TD TE TDD TED TD TE TDD TED TD TE TDD TED TE TED TE TED 10000 10000 5000 10000 10000 5000 4000 10000 10000 5000 4000 10000 10000 5000 4000 10000 10000 4000 10000 4000 10000 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 0.65±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 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 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 0.45+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±0.1 178 178 178 255 178 178 178 255 255 178 178 255 255 178 178 255 255 178 255 178 255 PAGE 7 OF 8 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. SS-239 R4 12/5/07 10:11 AM Page 8 KOA SPEER ELECTRONICS, INC. SS-239 R4 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 0.512 (1.5 ± 0.05) (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)] 10. Packing Lot number (8 digits) 89 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 41~52 January 2006 ~ December 2006 53~64 January 2007 ~ December 2007 11. Packaging Method Size Code TE 7" Embossed Plastic TP 7" Punched Paper TD Punched Paper 1 E (0402) 1 J (0603) 2 A (0805) 2 B (1206) 2 E (1210) 2 H (2010) 3 A (2512) ––––– ––––– 10,000 10,000 10,000 ––––– ––––– ––––– ––––– ––––– 4,000 4,000 4,000 4,000 4,000 TED 10" Embossed TDD 10" Punched Plastic Paper ––––– ––––– 5,000 5,000 5,000 5,000 ––––– ––––– ––––– 10,000 10,000 10,000 10,000 ––––– ––––– 10,000 10,000 10,000 10,000 10,000 PAGE 8 OF 8 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.