CW18 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – THICK FILM CERMET ROTARY POTENTIOMETER

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Resistors And
Resistive Applications
CW18
THICK FILM CERMET
ROTARY POTENTIOMETER
Description
The CW18 is a tick film, layered resistance and track fitted on a ceramic base. The actuating device is an isolated
rotor with a carbon wiper, operated by a metal spindle. The resistance element is shielded by a metal housing. The
housing is profiled to act as a heatsink. The terminal “a” and “c” (see Fig.) are the end terminals; “b” is the central
terminal connected to the slider. All terminals are solder tags. The CW18 potentiometer can be manufactured in
standard or hermetic version.
Applications
CW18 potentiometers are designed for control functions where high dissipation and high stability are necessary.
Examples can be found in industrial control functions.
Quick Reference Data
Resistance range:
Power dissipation:
Limiting voltage
Climatic category:
100ohms to 2.2Mohms
1W
350V
55/100/55
Specifications:
Parameter
Rated resistance R_N
Resistance range:
Resistance tolerance:
for resistance up to 470 kΩ
for resistance higher then 470 kΩ
Characteristic A:
Temperature Coefficient of Resistance TCR:
Power dissipation P_N at 55^o C:
Limiting voltage
Operating torque:
Climatic category
Unit
Ω
%
ppm/^oC
W
V
mNm
Value
According to the series
1 – 1.5 – 2.2 – 3.3 – 4.7 – 6.8 – 8 – 10 etc.
100 ÷ 2.2 M
± 20
± 30
linear
± 300
1
350
≤ 40
55/100/56
Ordering Information:
Please specify in order:
1. Type of potentiometer (CW18); resistance value; shaft length; shaft end (P1, P3, P5):
Example: CW18 47 kΩ 20 P-3
2. Type of potentiometer (CW18); resistance value; shaft length; shaft end (P1, P3, P5)
hermetic version:
Example: CW18H 47 kΩ A 20 P-3
Packaging:
In plastic bags and cartons.
Web: http://www.raraohm.com Email: [e-mail] Date: 2012-12-12 Copyright©RARA Electronics Corp.