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Amplifiers/Converters??

Panel pot lasts to 1 million cycles

Posted: 22 Jan 2008 ?? ?Print Version ?Bookmark and Share

Keywords:panel pot? potentiometer? operating cycles?

P30L

Vishay Intertechnology Inc. has announced a new long-life, compact panel potentiometer with a 2W power rating, low temperature coefficient and high operating torque.

While standard panel potentiometers reach 100,000 cycles, the P30L offers a long life of 1 million cycles. For designers, this reduces the need for replacement parts, increasing reliability and lowering maintenance costs.

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, and military, agricultural and water-resistant equipment.

With only a 19.7mm diameter, the new device offers designers a compact alternative to other 2W panel potentiometers. Its cermet element provides better stability than carbon elements, while its 2500Vrms dielectric strength offers greater reliability and robustness. Custom shafts are available in accordance to drawings supplied by customers.

The new Vishay Sfernice device offers a high maximum operating torque of 4.25oz. per inch, and an end stop torque of 99oz. per inch. The potentiometer features four resistances values from 1k to 50k over a 44.7-300V working range, with a low 3 percent typical contact resistance variation. An operating temperature range of -40C to 100C ensures reliable operation even in extreme environments.

Samples of the P30L are already available. Production quantities will be available this month, with lead times of eight to 10 weeks for larger orders.




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