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