The trimmer is made for tough jobs, offers a wide resistance range, simple hand control, and works in heat, cold, or small spaces.
Vishay has released the Sfernice M61, a new industrial-grade 3/8-inch square single-turn cermet trimmer. This component is available in multiple mechanical options, including an extended shaft, cross-slot rotor, or knob, making it easier to adjust by hand. It also comes in several pin configurations and supports both top and side adjustment styles to suit different PCB layouts.
The M61 offers a wide resistance range from 10 Ω to 2 MΩ and operates in extreme temperatures, from -55 °C to +125 °C. It features a low temperature coefficient of ±100 ppm/°C for stable resistance over temperature changes. The device is fully sealed to endure standard board washing processes and is rated for 0.5 W power at +85 °C.
These features make the M61 easy to integrate into a variety of circuit designs. The mechanical adjustment options simplify manual tuning during setup or maintenance. The choice between top and side adjustments gives engineers more layout flexibility when space is limited.
Some of the key features of the Sfernice M61 include:
- Small 3/8-inch square size
- Easy to adjust by hand with knob or rotor options
- Can be placed on board with top or side adjustment
- Works with many resistance values from 10 Ω to 2 MΩ
- Stays stable even when temperature changes
- Sealed to handle cleaning during board washing
- Works in hot or cold conditions from -55 °C to +125 °C
- Can handle 0.5 watts of power at 85 °C
Its broad resistance range and temperature tolerance ensure reliable operation in tough environments. The low temperature coefficient means more consistent performance even when operating conditions fluctuate. Full sealing adds durability, protecting the trimmer during cleaning and assembly processes.
As a result, the Sfernice M61 is well suited for demanding industrial applications. It supports precise adjustments in equipment like welding machines, power tools, and 3D printers. It also performs reliably in heating, cooling, and ventilation systems, helping improve system efficiency and lifespan while reducing downtime and maintenance efforts.
