Sharma Potentiometers
Trimmer Potentiometer
WIW1028 (3386)
Features
ƽꢀ 9mm Square Single Turn
ƽꢀ Cermet / Industrial / Sealed
ƽ Available with a knob for finger
adjust
ƽ Available with extended shaft
ƽꢀ Top and side adjust types
(F,P,H,W,X most popular)
ꢀ
How to order
WIW1028üPü102
Electrical Characteristics
Standard Resistance Range
100 to 2 megohms
(see standard resistance table)
Resistance Tolerance
f10% std.
(tighter tolerance available)
Absolute Minimum Resistance
1% or 2 ohms max.
(whichever is greater)
Contact Resistance Variation
3% or 3 ohms max.
ꢀ
ꢀ
Style Code
ꢀ
ꢈ
ꢈꢁꢀ
ꢉꢁꢈ
Model
ꢈꢁꢀ/21*
ꢂꢁꢃ:,'(
ꢂꢁꢄ'((3
ꢊꢁꢈ ꢊꢁꢈ
ꢀꢁꢁ
ꢂ
Style
ꢃꢁꢄ
Resistance Code
P-K
ꢈ
ꢉꢁꢈ
ꢀ
(
ꢊꢁꢈ ꢊꢁꢈ
ꢅꢁꢊ/21*
ꢃꢁꢉ:,'(
ꢃꢁꢉ'((3
&:
ꢂ
(whichever is greater)
Adjustability
ꢀꢁꢁ
ꢃꢁꢄ
:,3(5
ꢂ
Voltage f0.05%
Resistance f0.15%
Resolution
Infinite
Insulation Resistance
500 vdc
F
ꢈ
ꢉꢁꢈ
ꢀ
ꢊꢁꢈ ꢊꢁꢈ
(
ꢀ
&:
ꢁ
ꢅꢁꢊ/21*
ꢃꢁꢉ:,'(
ꢃꢁꢉ'((3
&:
ꢀꢁꢁ
ꢂ
&/2&.:,6(
ꢃꢁꢄ
1,000 megohms min.
Dielectric Strength
101.3 kPa 500 vac
8.5 kPa 350 vac
Adjustment Angle
260enom.
Y
ꢉꢁꢈ
ꢀ
ꢈ
(
ꢅꢁꢊ/21*
ꢃꢁꢉ:,'(
ꢃꢁꢉ'((3
ꢊꢁꢈ ꢊꢁꢈ
&:
ꢂ
Standard Resistance Table
ꢀꢁꢁ
ꢃꢁꢄ
Resistance
(Ohms)
100
Resistance
Code
101
R
Environmental Characteristics
Power Rating (250 volts max.)
0.5 watt (70ć) , 0 watt (125ć)
Temperature Range
-55ć to +125ć
ꢉꢁꢈ
ꢀ
ꢈ
(
ꢅꢁꢊ/21*
ꢃꢁꢉ:,'(
ꢃꢁꢉ'((3
ꢊꢁꢈ ꢊꢁꢈ
&:
ꢂ
ꢀꢁꢁ
200
201
Temperature Coefficient
f100ppm/ć
ꢃꢁꢄ
500
501
P
Vibration
98 m/s2
1,000
102
ꢉꢁꢈ
ꢈ
(
(1%TR; 1%VR)
Shock
ꢅꢁꢊ/21*
ꢃꢁꢉ:,'(
ꢃꢁꢉ'((3
2,000
202
&:
ꢂ
ꢀꢁꢁ
390 m/s2
5,000
502
ꢃꢁꢄ
(1%TR; 1%VR)
Load Life
1,000 hours 0.5 watt @ 70ć
(3%TR; 1% or 1 ohms, Whichever is
greater ,CRV)
Rotational Life
200 cycles
(3%TR; 1% or 1 ohms, Whichever is
greater ,CRV)
ꢅꢆꢇꢃꢁꢈ
10,000
20,000
25,000
50,000
100,000
200,000
250,000
500,000
1,000,000
2,000,000
103
203
ꢊꢁꢈ ꢊꢁꢈ
ꢊꢁꢈ ꢊꢁꢈ
ꢊꢁꢈ ꢊꢁꢈ
253
E
W
H
503
ꢉꢁꢈ
ꢈ
(
104
ꢅꢁꢊ/21*
ꢃꢁꢉ:,'(
ꢃꢁꢉ'((3
ꢁ
&:
ꢀ
204
Physical Characteristics
Mechanical Angle
280° nom.
Torque
20 mNgm max.
Stop Strength
ꢃꢁꢄ
ꢅꢆꢇꢃꢁꢈ
254
504
105
ꢊꢁꢈ ꢊꢁꢈ
ꢊꢁꢈ ꢊꢁꢈ
50 mNgm min.
Terminals
C
X
205
Solderable pins
Standard Packaging
50 pcs. per tube
Special resistance available
Detail Specification: Q/RY259A-2002
Mil- Spec Detail: Q/RY20011-97
Tel:(949)642-SECI
SECI Engineers & Buyers' Guide
Fax:(949)642-7327