Wirewound Resistors, Precision Power, Low Value,
Commercial, Military, MIL-PRF-49465 Type RLV, Axial Lead
LVR
Vishay Dale
www.vishay.com For technical questions, contact: ww2aresistors@vishay.com Document Number: 30206
152 Revision: 29-Feb-08
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
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
* Pb containing terminations are not RoHS compliant, exemptions may apply
Available
Pb-free
RoHS*
COMPLIANT
e3
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
MODEL
MIL-PRF-49465
TYPE
POWER RATING
P25 °C W
RESISTANCE RANGE Ω (1)
± 1 %, ± 3 %, ± 5 %, ± 10 %
TECHNOLOGY
LVR01 LVR-1 - 1 0.01 - 0.1 (2) 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
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 VAC 1000 1000 1000 1000
Insulation Resistance Ω10 000 MΩ 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
Maximum Working Voltage V (P x R)1/2
Weight (maximum) g 2 2 5 11
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: LVR055L000FS73 (preferred part number format)
GLOBAL MODEL VALUE TOLERANCE PACKAGING SPECIAL
LV R 0 1
LV R 0 3
LV R 0 5
LV R 1 0
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 Ω1 % S73 (will continue to be accepted for tin/lead product only)
LVR-5 0.005 Ω1 % S73
HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING
VR055L000FS73L
LVR
Wirewound Resistors, Precision Power, Low Value,
Commercial, Military, MIL-PRF-49465 Type RLV, Axial Lead Vishay Dale
Document Number: 30206 For technical questions, contact: ww2aresistors@vishay.com www.vishay.com
Revision: 29-Feb-08 153
DIMENSIONS in inches [millimeters]
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
(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:
1.50 [38.10] (1)
minimum
A
C
B
MODEL
DIMENSIONS in inches [millimeters]
A
± 0.010 [0.254]
B
± 0.010 [0.254]
C
± 0.002 [0.051]
LVR0 1 0.427 [10.85] 0.115 [2.92] 0.020 [0.508]
LVR0 3 0.560 [14.22] 0.205 [5.21] 0.032 [0.813]
LVR0 5 0.925 [23.50] 0.330 [8.38] 0.040 [1.02]
LVR1 0 1.828 [46.43] 0.392 [9.96] 0.040 [1.02]
12 3 4 567 8910
250
200
150
100
50
NI ERUTAREPMET ECAFRUS
°
C
POWER IN W
LVR03
LVR01
Surface Temperature vs Power
LVR05
LVR10
20 40 60 80 100
RESISTANCE (Ω x 10
-3
)
LVR05
400
300
200
100
TCR IN ppm/°C
LVR03
LVR01
TCR vs. Resistance Value
LVR10
- 65 - 25 25 75 125 175 225 275
AMBIENT TEMPERATURE IN °C
120
100
80
60
40
20
0
% N I R E W O P D
E
T A R
LVR01
LVR03
LVR05
LVR10
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 Ω) ΔR
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 1000 MΩ minimum
Moisture Resistance MIL-STD-202 Method 106, 100 7b not applicable ± (0.2 % + 0.0005 Ω) ΔR
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 95 % coverage
Bias Humidity + 85 °C, 85 % RH, 10 % bias, 1000 h ± (1.0 % + 0.0005 Ω) ΔR
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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