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, 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 Pb-free Available e3 RoHS* COMPLIANT STANDARD ELECTRICAL SPECIFICATIONS GLOBAL HISTORICAL MIL-PRF-49465 POWER RATING RESISTANCE RANGE Ω (1) TECHNOLOGY MODEL MODEL TYPE P25 °C W ± 1 %, ± 3 %, ± 5 %, ± 10 % (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 Ω, 0.015 Ω, 0.02 Ω, 0.025 Ω, 0.03 Ω, 0.033 Ω, 0.04 Ω, 0.05 Ω, 0.051 Ω, 0.06 Ω, 0.068 Ω, 0.07 Ω, 0.08 Ω, 0.09 Ω and 0.1 Ω with 1 % tolerance. Other resistance values may be available upon request TECHNICAL SPECIFICATIONS PARAMETER Rated Power at + 25 °C Operating Temperature Range Dielectric Withstanding Voltage Insulation Resistance Short Time Overload Terminal Strength (minimum) Temperature Coefficient Maximum Working Voltage Weight (maximum) UNIT W °C VAC Ω lb ppm/°C V g LVR01 1 - 65 to + 175 1000 LVR03 3 LVR05 LVR10 5 10 - 65 to + 275 1000 1000 1000 10 000 MΩ minimum dry 5 x rated power for 5 s 10 x rated power for 5 s 10 10 10 See TCR vs. Resistance Value chart (P x R)1/2 2 5 11 5 2 GLOBAL PART NUMBER INFORMATION New Global Part Numbering: LVR055L000FS73 (preferred part number format) L V R 0 5 5 L 0 0 0 F S 7 3 GLOBAL MODEL VALUE TOLERANCE PACKAGING SPECIAL LVR01 LVR03 LVR05 LVR10 R = Decimal L = mΩ (values < 0.010 Ω) R1500 = 0.15 Ω 7L000 = 0.007 Ω D = ± 0.5 % F = ± 1.0 % G = ± 2.0 % H = ± 3.0 % J = ± 5.0 % K = ± 10.0 % E12 = Lead (Pb)-free bulk E03 = Lead (Pb)-free lacer pack (LVR10) E70 = Lead (Pb)-free, tape/reel 1000 pieces (LVR01, 03) E73 = Lead (Pb)-free, tape/reel 500 pieces (Dash Number) (up to 3 digits) From 1 - 999 as applicable B12 = Tin/lead bulk 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 Ω 1 % S73 (will continue to be accepted for tin/lead product only) LVR-5 0.005 Ω 1% S73 HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING * Pb containing terminations are not RoHS compliant, exemptions may apply www.vishay.com 152 For technical questions, contact: [email protected] Document Number: 30206 Revision: 29-Feb-08 LVR Wirewound Resistors, Precision Power, Low Value, Commercial, Military, MIL-PRF-49465 Type RLV, Axial Lead Vishay Dale DIMENSIONS in inches [millimeters] 1.50 [38.10] (1) minimum A LVR01 LVR03 LVR05 LVR10 C B DIMENSIONS in inches [millimeters] A B C ± 0.010 [0.254] ± 0.010 [0.254] ± 0.002 [0.051] 0.427 [10.85] 0.115 [2.92] 0.020 [0.508] 0.560 [14.22] 0.205 [5.21] 0.032 [0.813] 0.925 [23.50] 0.330 [8.38] 0.040 [1.02] 1.828 [46.43] 0.392 [9.96] 0.040 [1.02] MODEL 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 SURFACE TEMPERATURE IN °C Note (1) On some standard reel pack methods, the leads may be trimmed to a shorter length than shown 250 150 LVR05 LVR03 200 LVR10 LVR01 100 The improved TCR characteristics of these LVR models from - 55 °C to + 125 °C (reference to + 25 °C) are as follows: 50 1 2 3 4 5 6 7 8 RATED POWER IN % TCR IN ppm/°C Surface Temperature vs Power 400 LVR03 LVR10 300 LVR01 LVR05 9 10 POWER IN W 120 100 80 LVR03 LVR05 LVR10 60 200 40 LVR01 100 20 20 40 60 TCR vs. Resistance Value 80 0 - 65 100 RESISTANCE (Ω x 10-3) - 25 25 75 Derating 125 175 225 275 AMBIENT TEMPERATURE IN °C PERFORMANCE TEST CONDITIONS OF TEST Thermal Shock - 65 °C to + 125 °C, 5 cycles, 15 min at each extrem ± (0.2 % + 0.0005 Ω) ΔR TEST LIMITS Short Time Overload 5 x rated power (LVR01, 03, 05), 10 x rated power (LVR10) for 5 s ± (0.5 % + 0.0005 Ω) ΔR Low Temperature Storage - 65 °C for 24 h ± (0.2 % + 0.0005 Ω) ΔR High Temperature Exposure 250 h at + 275 °C (+ 175 °C for LVR01) ± (2.0 % + 0.0005 Ω) ΔR Dielectric Withstanding Voltage 1000 Vrms, 1 min ± (0.1 % + 0.0005 Ω) ΔR Insulation Resistance MIL-STD-202 Method 302, 100 V Moisture Resistance MIL-STD-202 Method 106, 100 7b not applicable Shock, Specified Pulse MIL-STD-202 Method 213, 100 g's for 6 ms, 10 shocks ± (0.1 % + 0.0005 Ω) ΔR Vibration, High Frequency Frequency varied 10 to 2000 Hz, 20 g peak, 2 directions 6 h each ± (0.1 % + 0.0005 Ω) ΔR Load Life 2000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF” ± (2.0 % + 0.0005 Ω) ΔR Solderability ANSI J-STD-002 Bias Humidity + 85 °C, 85 % RH, 10 % bias, 1000 h Document Number: 30206 Revision: 29-Feb-08 For technical questions, contact: [email protected] 1000 MΩ minimum ± (0.2 % + 0.0005 Ω) ΔR 95 % coverage ± (1.0 % + 0.0005 Ω) ΔR www.vishay.com 153 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1