1733 Reader's Spreads pg1-203:document 1/27/09 4:04 PM Page 48 PSI/PSE resistors chip type power shunt resistor EU features • Smooth current flow, suitable for large current detecting • Flat structure, applicable for strong mounting • Non inductive type • Automatic mounting machines are applicable • Suitable for reflow soldering • Products with lead-free terminations meet EU RoHS and China RoHS requirements M dimensions and construction Size Code 1mΩ & 2mΩ L Resist. (Ω) t Resin d PSI PSE Resistive Element: Metal Alloy Dimensions inches (mm) W d t 1.0mΩ .039±.010 (1.0±0.25) 2.0mΩ .394±.010 .205±.010 .079±.010 .026±.010 (10.0±0.25) (5.2±0.25) (2.0±0.25) (0.65±0.25) 3.0mΩ 4.0mΩ .028±.010 (0.7±0.25) 1.0mΩ .252±.010 .252±.010 .087±.010 .026±.010 (6.4±0.25) (6.4±0.25) (2.2±0.25) (0.65±0.25) W Electrode: Cu Metal Solder L 3mΩ & 4mΩ L W Electrode: Cu Metal Solder t d Resistive Element: Metal Alloy ordering information New Part # PS Type I D Power Rating I: 3W E: 3W Termination Material D: SnAgCu TEB Packaging TE: embossed plastic (PSE: 2,000 pieces/reel) TEB: embossed plastic (PSI: 3,000 pieces/reel) 1L00 Nominal Resistance F: 4 digits J: 3 digits All values less than 0.1Ω (100mΩ) are expressed in mΩ with “L” as decimal Ex: 1mΩ = 1L00 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 50 F Tolerance F: ±1% J: ±5% 11/13/08 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 1733 Reader's Spreads pg1-203:document 1/27/09 4:04 PM Page 49 PMS 300 neg. Black neg. chip type power shunt resistor applications and ratings Part Designation T.C.R. (ppm/°C) Max. Power Rating PSI 3W* PSE 3W* Resistance Range F: ±1% J: ±5% ±75 1mΩ**, 2mΩ** –– ±50 3mΩ, 4mΩ –– ±150 –– 1mΩ Terminal Temperature Under a Rated Load Operating Temperature Range +105°C and less -65°C to +155°C * A power rating shall be guaranteed with a method shown in the item. Please inquire before you order and/or use. ** Under development environmental applications Derating Curve 100 % Rated Power 80 60 40 20 0 -60 -40 -65 -20 0 20 40 60 80 100 120 105 Ambient Temperature (°C) 140 155 Performance Characteristics Parameter Overload (Short time) Resistance to Solder Heat Requirement ∆ R Limit Typical ±0.2%: PSI ±0.1%: PSI ±0.5%: PSE ±0.2%: PSE ±0.5% ±0.1% Test Method Rated power x 5 for 5 seconds 260°C ± 5°C, 15 seconds ± 1 second Rapid Change of Temperature ±0.5% ±0.2% -55°C (30 minutes), +125°C (30 minutes), 1,000 cycles Moisture Resistance ±0.5% ±0.2% 85°C ± 2°C, 85% RH, 1000 hours, 10% Bias Endurance at 105°C and Less of Terminal Temperature Low Temperature Operation High Temperature Exposure ±1.0% ±0.5% ±1% ±0.2%: PSI ±0.6%: PSE ±0.02%: PSI ±0.1%: PSE ±0.4%: PSI ±0.6%: PSE Terminal temperature: 105°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle -65°C, 96 hours +155°C, 1,000 hours Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 11/13/08 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 51 resistors PSI/PSE