FIGURE 2 - STANDARD DIMENSIONS

Lead Material #22 AWG

Round Solder Coated Copper

W

L

LS

H

LL

Soldered PCB

This product is fragile

and may be damaged

if mishandled.

VPG assumes no

responsibility for

damage caused by

improper handling.

TABLE 2 - SPECIFICATIONS

RESISTANCE RANGE

(

Ω)

MAXIMUM

WORKING

VOLTAGE

AMBIENT

POWER RATING

DIMENSIONS

at

+ 70 °C

at

+ 125 °C

INCHES

mm

10 to 100K

200

0.4 W

0.2 W

W: 0.080 max.

L: 0.250 max.

H: 0.310 max.

LL: 1.000 ± 0.125

LS: 0.150 ± 0.005

W: 2.03 max.

L: 6.35 max.

H: 7.87 max.

LL: 25.4 ± 3.18

LS: 3.81 ± 0.13

FIGURE 3 - POWER DERATING CURVE

200 %

175 %

150 %

125 %

100 %

75 %

50 %

25 %

0

- 75

- 50

- 25

0

+ 25

+ 50

+ 75 + 100 + 125 + 150 + 175 + 200

Ambient Temperature (°C)

- 55 °C

+ 70 °C

Double Rated Power

Rated Power

VAR

Vishay Foil Resistors

Document Number: 63140

www.vishayfoilresistors.com

Revision: 22-Nov-10

3

FIGURE 4 - TRIMMING TO VALUES

(Conceptual Illustration)

Mutual Inductance

Reduction due

to Opposing

Current in

Adjacent Lines

Current Path

Before Trimming

Note: Foil shown in black, etched spaces in white

Interloop Capacitance

Reduction in Series

Trimming Process

Removes this Material

from Shorting Strip Area

Changing Current Path

and Increasing

Resistance

Current Path

After Trimming

To acquire a precision resistance value, the Bulk Metal Foil

chip is trimmed by selectively removing built-in “shorting

bars.” To increase the resistance in known increments,

marked areas are cut, producing progressively smaller

increases in resistance. This method reduces the effect of

“hot spot” and improves the long term stability of the hybrid

chips.