Malvern, Pa. Vishay Intertechnology Inc. has introduced a long-life, compact panel potentiometer with a high 2-W power rating, low temperature coefficient, and high operating torque. The P30L offers a long life of 1 million cycles, compared to standard panel potentiometers that typically deliver 100,000 cycles. The device provides a low temperature coefficient down to ±150 ppm/°C in a fully-sealed IP67 package for industrial control applications.
The Vishay Sfernice device offers a high maximum operating torque of 4.25 oz. per inch, and an end stop torque of 99 oz. per inch. The potentiometer features four resistances values from 1 kohm to 50 kohm over a 44.7-V to 300-V working range, with a low 3% typical contact resistance variation. An operating temperature range of -40°C to +100°:C ensures reliable operation even in extreme environments, said Vishay.
Featuring a fully-sealed IP67 package with pure Sn terminals, the potentiometer is intended for industrial control panel, heavy-duty control, automotive and off-road control, and harsh environment applications in end products including trucks and tractors, machine tools, HVAC systems, welding machines, as well as military, agricultural, and water-resistant equipment.
With only a 19.7-mm diameter, the P30L device offers designers a compact alternative to other 2-W panel potentiometers. Its cermet element provides better stability than carbon elements, while its 2500-VRMS dielectric strength offers greater reliability, said Vishay. Custom shafts are available in accordance to drawings supplied by customers.
Pricing: $11.00 per unit in small quantities, and $7.00 per unit in large quantities.
Availability: Samples are available now. Production quantities will be available in January 2008, with lead times of eight to 10 weeks for larger orders.
Product information: P30L
Vishay Intertechnology, (33) 4 93 37 2950, www.vishay.com