Compact panel potentiometers with dielectric strength of 5000 VRMS

Vishay Intertechnology has released two new compact panel potentiometers with high dielectric strength of 5,000 VRMS, cermet and conductive plastic elements, and a wide variety of modules and terminal styles.

With their 12.5-mm size, the new P11P and P11D offer designers a compact alternative to other low-cost panel potentiometers. The P11P's cermet element provides better stability than carbon elements, while the conductive plastic element of the P11D offers a reduced electrical noise for audio applications. Both devices feature a 5,000-VRMS dielectric strength for greater reliability, robustness, and corrosion protection, and offer insulated plastic shafts and bushing, with value-added options in accordance with drawings supplied by customers.

The versatile panel potentiometers offer a wide range of configurations for control panel applications in welding machines, air conditioning units, tooling machines, medical systems, and X-ray equipment. The devices feature up to seven modules, two shaft lengths, and 29 terminal styles. Offered in shaft and panel-sealed versions, the P11P and P11D provide up to 21 indent positions along with rotary switch options.

The new Vishay Sfernice devices offer a typical operating torque from 0.3 oz. to 1.4 oz. per inch, and an end stop torque of 6.8 lb. per inch. The potentiometers provide a resistance range from 20 O to 10 MO with a typical contact resistance variation down to 1 %, and TCR down to ±150 ppm/°C. Tested in accordance to CECC41 000, the devices offer an operating temperature range of -40 °C to +100 °C to ensure reliable operation even in extreme environments.

Device Specification Table:

Part number P11D P11P

Element Conductive plastic Cermet

Resistance range 1 kO to 1 MO 20 O to 10MO

Contact resistance variation (typ.) 1 % 2 % or 3 O

Temperature coefficient (typ.) ±500 ppm/°C ±150 ppm/°C

Life cycles 50,000 50,000

Samples and production quantities of the new panel potentiometers are available now, with lead times of eight to 10 weeks for larger orders.