LVR Vishay Dale Wirewound Resistors, Precision Power, Low Value, Commercial, Military, MIL-PRF-49465 Type RLV, Axial Lead FEATURES Ideal for all types of current sensing applications including switching and linear power supplies, Pb-free instruments and power amplifiers Available Proprietary processing technique produces extremely low resistance values e3 Excellent load life stability Low temperature coefficient RoHS* Low inductance COMPLIANT Cooler operation for high power to size ratio STANDARD ELECTRICAL SPECIFICATIONS (1) GLOBAL HISTORICAL MIL-PRF-49465 POWER RATING RESISTANCE RANGE TECHNOLOGY MODEL MODEL TYPE P W 1 %, 3 %, 5 %, 10 % 25 C (2) 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 Notes (1) Resistance is measured 3/8 9.52 mm from the body of the resistor, or at 1.183 30.05 mm , 1.315 33.40 mm , 1.675 42.545 mm or 2.575 65.405 mm spacing for the LVR01, LVR03, LVR05 and LVR10 respectively (2) 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 TECHNICAL SPECIFICATIONS PARAMETER UNIT LVR01 LVR03 LVR05 LVR10 Rated Power at + 25 C W 1 3 5 10 Operating Temperature Range C - 65 to + 175 - 65 to + 275 Dielectric Withstanding Voltage V 1000 1000 1000 1000 AC Insulation Resistance 10 000 M minimum dry Short Time Overload - 5 x rated power for 5 s 10 x rated power for 5 s Terminal Strength (minimum) lb 5 10 10 10 Temperature Coefficient ppm/C See TCR vs. Resistance Value chart 1/2 Maximum Working Voltage V (P x R) Weight (maximum) g 2 2 5 11 GLOBAL PART NUMBER INFORMATION New Global Part Numbering: LVR055L000FS73 (preferred part number format) L V R 055 L 000 FS 7 3 GLOBAL MODEL VALUE TOLERANCE PACKAGING SPECIAL LVR01 R = Decimal D = 0.5 % E12 = Lead (Pb)-free bulk (Dash Number) LVR03 L = m F = 1.0 % E03 = Lead (Pb)-free lacer pack (LVR10) (up to 3 digits) LVR05 (values < 0.010 ) G = 2.0 % E70 = Lead (Pb)-free, tape/reel 1000 pieces (LVR01, 03) From 1 - 999 LVR10 R1500 = 0.15 H = 3.0 % E73 = Lead (Pb)-free, tape/reel 500 pieces as applicable 7L000 = 0.007 J = 5.0 % B12 = Tin/lead bulk K = 10.0 % L03 = Tin/lead lacer pack (LVR10) S70 = Tin/lead, tape/reel 1000 pieces (LVR01, 03) S73 = Tin/lead, tape/reel 500 pieces Historical Part Number Example: LVR-5 0.005 1 % S73 (will continue to be accepted for tin/lead product only) LVR-5 0.005 1 % S73 HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING * Pb containing terminations are not RoHS compliant, exemptions may apply www.vishay.com For technical questions, contact: ww2aresistors vishay.com Document Number: 30206 152 Revision: 29-Feb-08LVR Wirewound Resistors, Precision Power, Low Value, Vishay Dale Commercial, Military, MIL-PRF-49465 Type RLV, Axial Lead DIMENSIONS in inches millimeters DIMENSIONS in inches millimeters (1) 1.50 38.10 MODEL A B C A minimum 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 C B 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 Note (1) On some standard reel pack methods, the leads may be trimmed to a shorter length than shown MATERIAL SPECIFICATIONS Element: Self-supporting nickel-chrome alloy 250 (LVR10 also utilizes manganin) LVR05 LVR03 200 Encapsulation: High temperature mold compound LVR10 LVR01 Terminals: Tinned copper 150 Part Marking: DALE, model, wattage, value, tolerance, 100 date code 50 The improved TCR characteristics of these LVR models from - 55 C to + 125 C (reference to + 25 C) are as follows: 12 3 4 5 6 7 8 910 POWER IN W Surface Temperature vs Power 400 120 LVR03 100 LVR10 300 LVR01 80 LVR03 LVR05 LVR05 LVR10 60 200 40 LVR01 100 20 0 20 40 60 80 100 - 65 - 25 25 75 125 175 225 275 -3 RESISTANCE ( x 10 ) AMBIENT TEMPERATURE IN C TCR vs. Resistance Value Derating PERFORMANCE TEST CONDITIONS OF TEST TEST LIMITS Thermal Shock - 65 C to + 125 C, 5 cycles, 15 min at each extrem (0.2 % + 0.0005 ) R Short Time Overload 5 x rated power (LVR01, 03, 05), 10 x rated power (LVR10) for 5 s (0.5 % + 0.0005 ) R Low Temperature Storage - 65 C for 24 h (0.2 % + 0.0005 ) R High Temperature Exposure 250 h at + 275 C (+ 175 C for LVR01) (2.0 % + 0.0005 ) R Dielectric Withstanding Voltage 1000 V , 1 min (0.1 % + 0.0005 ) R rms Insulation Resistance MIL-STD-202 Method 302, 100 V 1000 M minimum Moisture Resistance MIL-STD-202 Method 106, 100 7b not applicable (0.2 % + 0.0005 ) R Shock, Specified Pulse MIL-STD-202 Method 213, 100 g s for 6 ms, 10 shocks (0.1 % + 0.0005 ) R Vibration, High Frequency Frequency varied 10 to 2000 Hz, 20 g peak, 2 directions 6 h each (0.1 % + 0.0005 ) R Load Life 2000 h at rated power, + 25 C, 1.5 h ON, 0.5 h OFF (2.0 % + 0.0005 ) R Solderability ANSI J-STD-002 95 % coverage Bias Humidity + 85 C, 85 % RH, 10 % bias, 1000 h (1.0 % + 0.0005 ) R Document Number: 30206 For technical questions, contact: ww2aresistors vishay.com www.vishay.com Revision: 29-Feb-08 153 TCR IN ppm/C R A T E D P O W E R I N % SURFACE TEMPERATURE IN C