LVR

www.vishay.com

Vishay Dale

Revision: 19-Oct-15

2

Document Number: 30206

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

DIMENSIONS in inches [millimeters]

Note

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

Packaging: Reference “Wirewound Through Hole Resistor

DERATING

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]

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]

- 65

- 25

25

75

125

175

225

275

AMBIENT TEMPERATURE IN °C

120

100

80

60

40

20

0

LVR01

LVR03

LVR05

LVR10

TEMPERATURE COEFFICIENT (ppm/°C)

LVR01

LVR03

LVR05

LVR10

± 1000 for 0.01

 to 0.0249 

± 400 for 0.025

 to 0.0499 

± 300 for 0.05

 to 0.0749 

± 250 for 0.075

 to 0.099 

± 150 for 0.1

 to 0.1 

± 850 for 0.005

 to 0.0099 

± 350 for 0.01

 to 0.0249 

± 200 for 0.025

 to 0.0499 

± 125 for 0.05

 to 0.0749 

± 75 for 0.075

 to 0.099 

± 50 for 0.1

 to 0.2 

± 650 for 0.005

 to 0.0099 

± 250 for 0.01

 to 0.0249 

± 150 for 0.025

 to 0.0499 

± 100 for 0.05

 to 0.0749 

± 75 for 0.075

 to 0.099 

± 50 for 0.1

 to 0.3 

± 300 for 0.01

 to 0.0249 

± 150 for 0.025

 to 0.0499 

± 125 for 0.05

 to 0.0749 

± 100 for 0.075

 to 0.099 

± 50 for 0.1

 to 0.8 

PERFORMANCE

TEST

CONDITIONS OF TEST

TEST LIMITS

Thermal Shock

-65 °C to +125 °C, 5 cycles, 15 min at each extreme

± (0.2 % + 0.0005

) R

Short Time Overload

5x 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

± (0.1 % + 0.0005

) R

Insulation Resistance

MIL-STD-202 Method 302, 100 V

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, 100 g's for 6 ms, 10 shocks

± (0.1 % + 0.0005

) R

Vibration, High Frequency

Frequency varied 10 Hz 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

Bias Humidity

+85 °C, 85 % RH, 10 % bias, 1000 h

± (1.0 % + 0.0005

) R