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
Rear View
L
W
Resistance
Value Code
Date Code
ꢂ7 ꢃꢂ
Year Week
VISHAY
XXXX
VSRꢀ
ꢃꢂꢂRꢂꢃ
ꢂ0ꢂꢃ %
H
Tolerance
ST
LL
SW
Lead Material #22AWG
Round Solder Coated Coꢁꢁer
Model Nupber
LS
TABLE 1 - MODEL SELECTION
DIMENSIONS
MAXIMUM
TIGHTEST
LOAD LIFE
POWER POWER MAXIMUM
TEMPERATURE TOLERANCE ꢄ
MODEL
NUMBER
RESISTANCE
STABILITY
(MAXIMUM
at
at
WORKING
COEFFICIENT
OFRESISTANCE
(+ 25 /C REF0)
VS0 LOWEST
RESISTANCE
VALUE (Ω)
(Ω)
INCHES
pp
+ 7ꢂ /C + ꢃ25 /C VOLTAGE
ΔR)
VSR
1 to 150K
1 to 500K
1 to 750K
0.5 to 1M
0.3 W
0.2 W
300
350
350
500
W: 0.105 0.010
L: 0.300 0.010
H: 0.326 0.010
2.67 0.25
7.62 0.25
8.28 0.25
0.05 ꢀ
2000 hours
at + 125 °C
0 °C to + 60 °C
4 ppm/°C
0.01/25
0.02/12
0.05/5
0.1/2
0.25/2
0.5/1
up to 100K
VSRJꢃ)0
0.25 W
0.15 W
ST: 0.010 Minimum 0.254 Minimum
SW: 0.040 0.005
LL: 1.000 0.125
LS: 0.150 0.0051)
1.02 0.13
25.4 3.18
3.81 0.13
- 55 °C to + 125 °C
8 ppm/°C
over 100K
1/1
VSRꢀ
VSR5
VSR6
0.5 W
0.4 W
0.2 W
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
SW: 0.050 0.005
LL: 1.000 0.125
LS: 0.400 0.020
0.005/30
0.01/20
0.02/10
0.05/5
0.1/1
up to 200K
0.25 W
0.89 0.13
1.27 0.13
25.4 3.18
10.16 0.51
over 200K
0.75 W
0.6 W
0.3 W
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
SW: 0.050 0.005
LL: 1.000 0.125
LS: 0.650 0.020
up to 300K
0.4 W
0.89 0.13
1.27 0.13
25.4 3.18
16.51 0.51
over 300K
0.25/1
0.5/1
1.0 W
0.8 W
0.4 W
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
SW: 0.050 0.005
LL: 1.000 0.125
LS: 0.900 0.020
up to 400K
0.5 W
0.89 0.13
1.27 0.13
25.4 3.18
22.86 0.51
over 400K
1/1
Note
1. 0.200 inches (5.08 mm) lead spacing available - specify VSRJ.
FIGURE 4 - TEMPERATURE COEFFICIENT OF RESISTANCE
+ ꢀꢂꢂ
+ 2ꢂꢂ
+ ꢀ ꢁꢁpm/C
+ ꢃꢀꢂ
- ꢃꢀꢂ
+ ꢃꢂꢂ
ΔR
R
ꢂ
(ꢁꢁp)
- ꢃꢂꢂ
- ꢀ ꢁꢁpm/C
- 2ꢂꢂ
- ꢀꢂꢂ
ꢂ
+ 25
+ 6ꢂ
Tepꢁerature,/C
www.vishay.com
2
For any questions, contact: foil@vishay.com
Document Number: 63009
Revision: 16-Jul-07