251 Datasheet, PDF (1/2 Pages) CTS Corporation – Long life, 9mm diameter, composition element, variable resistor

Series 251
®
Long life, 9mm
diameter, composition
element, variable
resistor
Features
• 1 million cycle life
• Miniature 9 mm size
• Multiple rotation angles available
• Low rotational torque
• Sturdy insert molded PC terminals
• Bushing mount or shaftless available
• Tap available
Electrical and Mechanical Specifications
Resistance Range
10 K ohms through 200 K ohms
Resistance Tolerance
Standard: ± 20%
Special: ± 10% and ± 30% available
Resistance Taper
Linear ± 5%
Insulation Resistance
100 megohms minimum @ 250 VDC
Operating Temperature
-10°C to +70°C
Rotational Torque
3 to 10 gf-cm
Rotational Life
1,000,000 cycles
Power Rating
0.01 watt at 50°C derated to no load at 85°C
Maximum Operating Voltage
Maximum 50 VAC or 5 VDC
Angle of Rotation
Total Rotation - With Shaft: 180°
No Shaft: 360°
Effective Rotation: 38°, 40°, 50°, 60°,
70°, 85°, 90° or 110° available
(Typical joystick control use.)
Materials
Housing: UL 94V-2
Shaft / Bushing: UL 94V-2
Base UL flame class 94HB
Shaft Information
Flatted, molded shaft
Diameter: 3.96 mm or 5.0 mm,
depending on shaft trim
Mounting Information
Bushing mount (unthreaded)
Diameter: 7.00 mm
Length: 5.00 mm
Tap Available
4° angle at 50% rotation optional
Other taps available - consult CTS
Technical Data Sheet 1251
CTS CORPORATION / MANUFACTURER OF RELIABLE ELECTRONIC COMPONENTS