LR72ADTEB2L0J

1733 Reader's Spreads pg1-203:document 1/27/09 4:04 PM Page 40 LR72A, B, C resistors metal plate current sense resistors EU features • • • • • Superior thermal expansion cycling Inductance less than 10nH Solderable pads (60/40 SnPb plate) Lead flexible for thermal expansion Products with lead-free terminations meet EU RoHS and China RoHS requirements dimensions and construction W td L2 L L2 Copper Nickel Alloy Termination LR72A 3.75 size only LR72A Size Code LR72A (8.00) LR72A (5.00) LR72A (3.75) LR72A (2.50) L .39±.004 (10.0±0.1) .39±.004 (10.0±0.1) .39±.004 (10.0±0.1) .39±.004 (10.0±0.1) Dimensions inches (mm) L2 +0.1 W t -.02 .079 (2.0) .079 (2.0) .079 (2.0) .079 (2.0) .20±.008 (5.2±0.2) .20±.008 (5.2±0.2) .20±.008 (5.2±0.2) .20±.008 (5.2±0.2) .079 (2 Max.) .079 (2 Max.) .079 (2 Max.) .079 (2 Max.) d .006 (0.16) .009 (0.22) .013 (0.32) .019 (0.47) W td g L2 L g L2 Copper Nickel Alloy Termination LR72A (2mΩ) LR72B Size Code LR72A (2.00) LR72B Dimensions inches (mm) W t d .20±.008 .079 (5.2±0.2) (2 Max.) .118±.008 .079 (3.0±0.2) (2 Max.) .027 (0.68) .026 (0.66) L .39±.004 (10.0±0.1) .39±.004 (10.0±0.1) L2 +0.1 -.02 g .043±.008 (1.1±0.2) .043±.008 (1.1±0.2) .079 (2.0) .079 (2.0) W Copper Nickel Alloy Termination d a L LR72C Size Code LR72C Dimensions inches (mm) W t a t L .44±.016 (11.2±0.4) d .126±.016 .137±.016 .189±.030 .093±.010 (3.2±0.4) (3.5±0.4) (4.8±.75) (2.35±.25) ordering information New Part # LR72 Type A Size A B C D Termination Material D: SnAgCu (LR72C only) N: CuNi (non-presolder) (LR72A, B only) TE Packaging TE: 7" embossed plastic (LR72A, B) TEB: 13" embossed plastic (LR72C) 2L0 Nominal Resistance 2mΩ: 2L0 “L” indicates the decimal in milliohms J Tolerance J: ±5% For further information on packaging, please refer to Appendix A. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/16/08 42 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 41 PMS 300 neg. Black neg. LR72A, B, C metal plate current sense resistors applications and ratings Part Designation LR72A LR72B LR72C Power Rating 1/2W @ 25°C 1/4W @ 25°C 1W @ 70°C T.C.R. (ppm/°C) Max. ±100 ±350 Standard Resistance 2mΩ ~ 8mΩ 2mΩ, 3mΩ Resistance Tolerance Rated Ambient Temperature +70°C +85°C Operating Temperature Range -40°C to +180°C -40°C to +155°C resistors 3mΩ ~ 5mΩ J: ±5% environmental applications Derating Curve 100 LR72C 80 % Rated Power 60 40 LR72A, 72B 20 0 -40 0 80 120 160 200 70 85 155 180 Ambient Temperature (°C) 40 Performance Characteristics Parameter Resistance T.C.R. Resistance to Solder Heat Moisture Resistance Load Life Requirement Within regulated tolerance Within specified T.C.R. ±2.0% ±5.0% ±5.0% (A & B), ±3% (C) Test Method (JIS C 5202) 25°C Room temperature/100°C up, LR72C: Room temperature/25°C ~ 200°C 350°C ± 10°C, 3 seconds; LR72C: 260°C ± 5°C, 10 seconds Power rating x 1/10, 40°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle Rating voltage, 70°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/16/08 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 43