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 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 LVR03 3
5
2
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: LVR055L000FS73 (preferred part number format)
L
V
R
0
VALUE
5
5
L
TOLERANCE D = ± 0.5 % F = ± 1.0 % G = ± 2.0 % H = ± 3.0 % J = ± 5.0 % K = ± 10.0 %
0
0
0
F
S
PACKAGING
7
3
SPECIAL (Dash Number) (up to 3 digits) From 1 - 999 as applicable
GLOBAL MODEL LVR01 LVR03 LVR05 LVR10
R = Decimal L = mΩ (values < 0.010 Ω) R1500 = 0.15 Ω 7L000 = 0.007 Ω
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 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 HISTORICAL MODEL 0.005 Ω RESISTANCE VALUE 1% TOLERANCE CODE S73 PACKAGING
* Pb containing terminations are not RoHS compliant, exemptions may apply www.vishay.com 152 For technical questions, contact: ww2aresistors@vishay.com Document Number: 30206 Revision: 29-Feb-08
LVR
Wirewound Resistors, Precision Power, Low Value, Commercial, Military, MIL-PRF-49465 Type RLV, Axial Lead
DIMENSIONS in inches [millimeters]
A 1.50 [38.10] (1) minimum
Vishay Dale
MODEL LVR01 LVR03 LVR05 LVR10
B
C
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]
Note (1) On some standard reel pack methods, the leads may be trimmed to a shorter length than shown
SURFACE TEMPERATURE IN °C
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 TCR characteristics of these LVR models from - 55 °C to + 125 °C (reference to + 25 °C) are as follows:
250 LVR03 LVR01 LVR05 LVR10
200
150
100 50
1
2
3
4
5
6
7
8
9
10
Surface Temperature vs Power
TCR IN ppm/°C RATED POWER IN %
400 LVR03 LVR10 300 LVR01
POWER IN W
120 100
80 LVR03 LVR05 LVR10
LVR05 200
60 40
100
LVR01 20 0 - 65
20
40
60
80
100
- 25
25
75
125
175
225
275
TCR vs. Resistance Value
PERFORMANCE
TEST Thermal Shock Short Time Overload Low Temperature Storage High Temperature Exposure Dielectric Withstanding Voltage Insulation Resistance Moisture Resistance Shock, Specified Pulse Vibration, High Frequency Load Life Solderability Bias Humidity Document Number: 30206 Revision: 29-Feb-08
RESISTANCE (Ω x 10-3)
Derating
AMBIENT TEMPERATURE IN °C
CONDITIONS OF TEST - 65 °C to + 125 °C, 5 cycles, 15 min at each extrem 5 x rated power (LVR01, 03, 05), 10 x rated power (LVR10) for 5 s - 65 °C for 24 h 250 h at + 275 °C (+ 175 °C for LVR01) 1000 Vrms, 1 min MIL-STD-202 Method 302, 100 V MIL-STD-202 Method 106, 100 7b not applicable MIL-STD-202 Method 213, 100 g's for 6 ms, 10 shocks Frequency varied 10 to 2000 Hz, 20 g peak, 2 directions 6 h each 2000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF” ANSI J-STD-002 + 85 °C, 85 % RH, 10 % bias, 1000 h For technical questions, contact: ww2aresistors@vishay.com
TEST LIMITS ± (0.2 % + 0.0005 Ω) ΔR ± (0.5 % + 0.0005 Ω) ΔR ± (0.2 % + 0.0005 Ω) ΔR ± (2.0 % + 0.0005 Ω) ΔR ± (0.1 % + 0.0005 Ω) ΔR 1000 MΩ minimum ± (0.2 % + 0.0005 Ω) ΔR ± (0.1 % + 0.0005 Ω) ΔR ± (0.1 % + 0.0005 Ω) ΔR ± (2.0 % + 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
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