Vishay / Spectrol 149 Series 1/2" (12.7mm) Cermet Potentiometers
Vishay / Spectrol 149 Series 1/2" (12.7mm) Cermet Potentiometers offer a high rotational life of 50,000 cycles and a low temperature coefficient of ±150ppm/°C in an industrial-grade design. These devices are available with one or more detents, or without a detent, and the tapers include linear, logarithmic, and reverse-log. Additional features include up to three sections of PC support plates and limited clearance required behind the panel. Vishay / Spectrol 149 Series 1/2" (12.7mm) Cermet Potentiometers feature dust-proof and lead-free construction and RoHS compliance. This product line is ideal for industrial applications, including panel adjustments, hot-air blowers, and variable-frequency drives.
Features
- Cermet element
- Low temperature coefficient (±150ppm/°C)
- Available with one or multiple detents, or without detent
- Tapers include linear, logarithmic, and reverse log
- High rotational life (50,000 cycles)
- Up to three sections of PC support plates
- Clearance required behind panel is limited
- Rotary switches, tactile feedback, and solder lug terminals available
- Dust-proof construction (sealing-in option)
- Industrial grade
- Tests according to CECC 41000 or IEC 60393-1
- Lead free and RoHS compliant
Applications
- Remote controls
- Hot air blowers
- Spotlights for scenes
- Air fan controls
- Variable frequency drives
- Lighting control
- Welding setting
- Valve control
Dimensions
Additional Resources
Published: 2026-08-14
| Updated: 2026-08-14