VSR Series
Vishay Foil Resistors Bulk Metal® Foil Technology Industrial Precision Resistors
with TCR of ± 4 ppm/°C and Tolerance of ± 0.01 %
FIGURE 3 - IMPRINTING AND DIMENSIONS
Front View
L
Date Code
VISHAY 07 10
H XXXX Year Week
VSR4
W
ST
Model Number
LS
Lead Material #22AWG
Round Solder Coated Copper
Rear View
100R01
0.01 %
Resistance
Value Code
Tolerance
SW LL
TABLE 1 - MODEL SELECTION
MODEL
NUMBER
RESISTANCE
(Ω)
POWER
at
+ 70 °C
POWER
at
+ 125 °C
MAXIMUM
WORKING
VOLTAGE
DIMENSIONS
INCHES
mm
VSR
VSRJ1).
1 to 150K
0.3 W 0.2 W
up to 100K
0.25 W 0.15 W
over 100K
300 W: 0.105 ± 0.010 2.67 ± 0.25
L: 0.300 ± 0.010 7.62 ± 0.25
H: 0.326 ± 0.010 8.28 ± 0.25
ST: 0.010 Minimum 0.254 Minimum
SW: 0.040 ± 0.005 1.02 ± 0.13
LL: 1.000 ± 0.125 25.4 ± 3.18
LS: 0.150 ± 0.0051) 3.81 ± 0.13
LOAD LIFE
STABILITY
(MAXIMUM
ΔR)
MAXIMUM
TEMPERATURE
COEFFICIENT
OF RESISTANCE
(+ 25 °C REF.)
0.05 %
2000 hours
at + 125 °C
0 °C to + 60 °C
± 4 ppm/°C
- 55 °C to + 125 °C
± 8 ppm/°C
TIGHTEST
TOLERANCE %
VS. LOWEST
RESISTANCE
VALUE (Ω)
± 0.01/25
± 0.02/12
± 0.05/5
± 0.1/2
± 0.25/2
± 0.5/1
± 1/1
VSR4
VSR5
VSR6
1 to 500K
0.5 W 0.4 W
up to 200K
0.25 W 0.2 W
over 200K
1 to 750K
0.75 W 0.6 W
up to 300K
0.4 W 0.3 W
over 300K
0.5 to 1M
1.0 W 0.8 W
up to 400K
0.5 W 0.4 W
over 400K
350 W: 0.160 Maximum 4.06 Maximum
L: 0.575 Maximum 14.61 Maximum
H: 0.413 Maximum 10.49 Maximum
ST: 0.035 ± 0.005 0.89 ± 0.13
SW: 0.050 ± 0.005 1.27 ± 0.13
LL: 1.000 ± 0.125 25.4 ± 3.18
LS: 0.400 ± 0.020 10.16 ± 0.51
350 W: 0.160 Maximum 4.06 Maximum
L: 0.820 Maximum 20.83 Maximum
H: 0.413 Maximum 10.49 Maximum
ST: 0.035 ± 0.005 0.89 ± 0.13
SW: 0.050 ± 0.005 1.27 ± 0.13
LL: 1.000 ± 0.125 25.4 ± 3.18
LS: 0.650 ± 0.020 16.51 ± 0.51
500 W: 0.260 Maximum 6.60 Maximum
L: 1.200 Maximum 30.48 Maximum
H: 0.413 Maximum 10.49 Maximum
ST: 0.035 ± 0.005 0.89 ± 0.13
SW: 0.050 ± 0.005 1.27 ± 0.13
LL: 1.000 ± 0.125 25.4 ± 3.18
LS: 0.900 ± 0.020 22.86 ± 0.51
± 0.005/30
± 0.01/20
± 0.02/10
± 0.05/5
± 0.1/1
± 0.25/1
± 0.5/1
± 1/1
Note
1. 0.200 inches (5.08 mm) lead spacing available - specify VSRJ.
FIGURE 4 - TEMPERATURE COEFFICIENT OF RESISTANCE
+ 400
+ 200
ΔR + 100
R0
(ppm) - 100
- 200
+ 4 ppm/°C
+ 140
- 4 ppm/°C
- 140
- 400
0
+ 25
Temperature, °C
+ 60
www.vishay.com
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For any questions, contact: foil@vishay.com
Document Number: 63009
Revision: 16-Jul-07
