lvr vishay dale www.vishay.com 130 document number 30206 revision 05-oct-05 for technical questions, contact ww2aresistors@vishay .com features ? ideal for all types of current sensing applications including switching and linear power supplies, instruments and power amplifiers ? proprietary processing technique produces extremely low resistance values ? excellent load life stability ? low temperature coefficient ? low inductance ? cooler operation for high power to size ratio wirewound resistors, precision power, low value, commercial, military, mil-prf-49465 type rlv, axial lead standard electrical specifications *resistance is measured 3/8" [9.52mm] from the body of the resistor, or at 1.183" [30.05mm], 1.315" [33.40mm], 1.675" [42.545mm ] or 2.575" [65.405mm] spacing for the lvr01, lvr03, lvr05 and lvr10 respectively. **standard resistance values are 0.01 ? , 0.015 ? , 0.02 ? , 0.025 ? , 0.03 ? , 0.033 ? , 0.04 ? , 0.05 ? , 0.051 ? , 0.06 ? , 0.068 ? , 0.07 ? , 0.08 ? , 0.09 ? and 0.1 ? with 1% tolerance. other resistance values may be available upon request. global historical mil-prf-49465 power rating resistance range* technology model model p 25 c ? type w 1%, 3%, 5%, 10% lvr01 lvr-1 ? 1 0.01 - 0.1** metal strip lvr03 lvr-3 ? 3 0.005 - 0.2 metal strip lvr03...26 lvr-3-26 rlv30 (m4946506) 3 0.01 - 0.2 metal strip lvr05 lvr-5 ? 5 0.005 - 0.3 metal strip lvr05...26 lvr-5-26 rlv31 (m4946507) 5 0.01 - 0.3 metal strip lvr10 lvr-10 ? 10 0.01 - 0.8 coil spacewound parameter unit lvr01 lvr03 lvr05 lvr10 rated power at + 25 cw 1 3 5 10 operating temperature range c - 65/ + 175 - 65/ + 275 dielectric withstanding voltage v ac 1000 1000 1000 1000 insulation resistance ? 10,000 megohms minimum dry short time overload - 5 x rated power for 5 seconds 10 x rated power for 5 seconds terminal strength (minimum) lb 5 10 10 10 temperature coefficient ppm/ c see tc vs resistance value chart maximum working voltage v (p x r) 1/2 weight (maximum) g 2 2 5 11 technical specifications global model value tolerance packaging special lvr01 r = decimal d = 0.5% e12 = lead free bul k ( dash number) lvr03 l = milliohm f = 1.0% e03 = lead free lacer pack (l vr10) (up to 3 digits) lvr05 (below 0.01 ? ) g = 2.0% e70 = lead free t/r 1000 pcs from 1-999 as lvr10 r1500 = 0.15 ? h = 3.0% (lvr01, 02, 03) or 500 pcs (lvr05) applicable 7l000 = 0.007 ? j = 5.0% b12 = tin/lead bulk k = 10% f03 = tin/lead lacer pack (lvr10) s70 = tin/lead t/r 1000pcs (lvr01, 02, 03) or 500 pcs (lvr05) global part number information new global part numbering: lvr055l000fs7031 (preferred part numbering format) lvr055l000fs7031 historical part number example: lvr-5-31 0.005 ? 1% s70 (will continue to be accepted) lvr-5-31 0.005 ? 1% s70 historical model resistance value tolerance packaging code available e3
www.vishay.com 131 lvr vishay dale document number 30206 revision 05-oct-05 for technical questions, contact ww2aresistors@vishay .com dimensions model dimensions in inches [millimeters] ab c 0.010 [0.254] 0.010 [0.254] 0.002 [0.051] lvr01 0.427 [10.85] 0.115 [2.92] 0.020 [0.508] lvr03 0.560 [14.22] 0.205 [5.21] 0.032 [0.813] lvr05 0.925 [23.50] 0.330 [8.38] 0.040 [1.02] lvr10 1.828 [46.43] 0.392 [9.96] 0.040 [1.02] 1.50 [38.10]* minimum a c b wirewound resistors, precision power, low value, commercial, military, mil-prf-49465 type rlv, axial lead *on some standard reel pack methods, the leads may be trimmed to a shorter length than shown. - 65 - 25 25 75 125 175 225 275 ambient temperature in c 120 100 80 60 40 20 0 rated power in % lvr01 lvr03 lvr05 lvr10 derating material specifications element: self-supporting nickel-chrome alloy (lvr10 also utilizes manganin) encapsulation: high temperature mold compound terminals: tinned copper part marking: dale, model, wattage, value, tolerance, date code the improved tc characteristics of these lvr models from - 55 c to + 125 c (referenced to + 25 c) are as follows: 20 40 60 80 100 resistance ( ? x 10 -3 ) lvr05 400 300 200 100 tc in ppm/ c lvr03 lvr01 tc vs resistance value lvr10 12 3 4 567 8 910 250 200 150 100 50 surface temperature in c power in w lvr03 lvr01 surface temperature vs power lvr05 lvr10 test conditions of test (mil-prf-49465) test limits thermal shock - 65 c to + 125 c, 5 cycles, 15 minutes at each extreme (0.2% + 0.0005 ? ) ? r short time overload 5 x rated power (lvr01, 03, 05), 10 x rated power (lvr10) for 5 seconds (0.5% + 0.0005 ? ) ? r low temperature storage - 65 c for 24 hours (0.2% + 0.0005 ? ) ? r high temperature exposure 250 hours at + 275 c (+ 175 c for lvr01) (2.0% + 0.0005 ? ) ? r dielectric withstanding voltage 1000v rms, one minute (0.1% + 0.0005 ? ) ? r insulation resistance mil-std-202 method 302, 100 volts 1000 m ? minimum moisture resistance mil-std-202 method 106, 7b not applicable (0.2% + 0.0005 ? ) ? r shock, specified pulse mil-std-202 method 213, 100g's for 6 milliseconds, 10 shocks (0.1% + 0.0005 ? ) ? r vibration, high frequency frequency varied 10 to 2000hz, 20g peak, 2 directions 6 hours each (0.1% + 0.0005 ? ) ? r load life 2000 hours at rated power, + 25 c, 1.5 hours ?on?, 0.5 hours ?off? (2.0% + 0.0005 ? ) ? r solderability ansi j-std-002 95% coverage bias humidity + 85 c, 85% rh, 10% bias, 1000 hours (1.0% + 0.0005 ? ) ? r performance
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