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| Small Size Low Value Current Sense Surface Mount Chip Resistors LRCS Series 0402, 0603 and 0805 sizes (larger sizes refer to our LRF Series) Resistance R020 (20m ) to 1R0 (1000m ) Designed for current sensing in power electronic systems RoHS compliant Electrical Data LRCS0402 Power rating @70C Resistance range Isolation voltage watts ohms volts 0.063 R05 to 1R0 50V 400: R05 R10 300: R101 R50 200: R501 1R0 LRCS0603 0.1 R02 to 1R0 100V 600: R02 R05 400: R051 R10 300: R101 R50 200: R501 1R0 1(F), 5(J) E24 preferred LRCS0805 0.125: R02 to ppm/C % C -55 to +155 Physical Data L LRCS0402 LRCS0603 LRCS0805 1.00 0.05 1.60 0.10 2.00 0.15 W 0.50 0.10 0.80 0.10 1.25 0.15 T 0.32 0.10 0.45 0.10 0.55 0.10 D1 0.25 0.10 0.30 0.20 0.30 0.20 D2 0.20 0.10 0.30 0.20 0.40 0.25 Nom wt. (g) 0.0007 0.002 0.005 All dimensions in mm unless stated. Construction A resistor element is applied to an alumina substrate. The product is adjusted to value and protected. Marking is applied to 0603 and 0805 sizes. A wraparound conductor is applied to join the top and bottom sides. The terminations are electroplated with a Ni barrier layer prior to plating with a Sn finish. Solvent Resistance The body protection and marking are resistant to all normal industrial solvents suitable for printed circuits. Flammability The resistor will not burn or emit incandescent particles under any condition of applied temperature or overload. Solderability 95% min coverage (MIL-STD 202F / 208H, 235C 2 secs) General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyns own data and is considered accurate at time of going to print. (c) Welwyn Components Limited Bedlington Northumberland NE22 7AA, UK A subsidiary of TT electronics plc Issue C . 11.06 Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info@welwyn-tt.com Website: www.welwyn-tt.com LRCS Series Marking The LRCS0402 is not marked, the LRCS0603 is marked with 3 digits and LRCS0805 with 4 digits. e.g. 100m is marked as R10 (3digit) and R100 (4digit) and 35 m is marked as 035 (3digit) or R035 (4digit) Mounting Type A B C LRCS0402 LRCS0603 LRCS0805 0.6 1.0 1.0 0.4 0.7 0.8 0.500.2 1.000.2 1.300.2 A B Maximum C Performance Data Load at rated power (1000hrs cyclic load at 70C) De-rating from rated power at 70C Short term overload (6.25 x rated power for 5s) Dry heat (96Hrs, no load, +155C) Temperature rapid change (-55 / +150C, 100 cycles) Damp heat steady state Resistance to solder heat (260C for 10s) Low Temperature Operation Insulation Resistance R% R% R% R% R% R% R% 1% + 0.05 See Graph 0.5% + 0.05 1% + 0.05 (0.25W LRCS0805 rating) 0.5% + 0.05 0.5% + 0.05 0.5% + 0.05 0.5% + 0.05 0.5% + 0.05 >1000M 100% Power de-rating graph TC Packaging 0% -55 70 155 The standard packing for LRCS parts is on 8mm wide paper tape wound on 178mm diameter reels. Ordering Procedure Type Value (use IEC62 code) Tolerance (use IEC62 code) F 1% J 5% Packing T10 T5 T5 Tape Tape Tape 0402 0603 0805 Example: LRCS0603 at 25 milliohms and 1% tolerance on reel of 5000 pieces: LRCS0603 R 0 2 5 F T5 10,000 / reel 5,000 / reel 5,000 / reel (c) Welwyn Components Limited Bedlington Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info@welwyn-tt.com Website: www.welwyn-tt.com Issue C . 11.06 |
Price & Availability of LRCS
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