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Low-cost trimming pots suit board-level interface apps

Posted: 13 Dec 2006 ?? ?Print Version ?Bookmark and Share

Keywords:potentiometers? trimming potentiometer? TT electronics? BI Technologies? pots?

Trimming pots from BI Tech

TT electronics BI Technologies Electronic Components Division has expanded its product offering to include a complete line of open-type trimming potentiometers, providing design engineers with a lower-cost solution for board-level interface applications. These RoHS-compliant single-turn devices are available with cermet, carbon and conductive plastic elements.

"The advent of 'no-wash' board processing systems eliminates the need for more expensive sealed trimmers," said Frank Pipitone, VP of variable products for BI Technologies' Electronic Components Division. "The design of the trimmers in this product line makes them suitable for board-level applications in most CE equipment."

The open-type trimming potentiometers are being specified for a variety of applications, including satellite receivers, modems, LCD displays, STBs, and meters and instruments, as well as entertainment devices, such as cameras and MP3 players.

The single-turn open-type trimmer product line includes:

  • Model 35, 3mm top adjust cermet trimmer, with a power rating of 0.1W, standard tolerance of 25 percent and operating temperature range of -40C to 125C;

  • Model 36, 6mm top and side adjust cermet trimmer, with a power rating of 0.3W, standard tolerance of 20 percent and operating temperature range of -30C to 100C;

  • Model 37, 9mm top and side adjust cermet trimmer, with a power rating of 0.5W, standard tolerance of 20 percent and operating temperature range of -30C to 100C;

  • Model 38, 10mm top and side adjust conductive plastic trimmer, with 0.15W power rating, standard tolerance of 30 percent (20 percent and 10 percent available) and operating temperature range of -25C to 70C;

  • Model 39, 15mm top and side adjust conductive plastic trimmer, with 0.25W power rating, standard tolerance of 30 percent (20 percent and 10 percent available) and operating temperature range of -25C to 70C;

  • Model 40, 6mm top and side adjust carbon trimmer, with a power rating of 0.1W, standard tolerance of 30 percent, and operating temperature range of -10C to 70C;

  • Model 91, 3/8" top and side adjust cermet trimmer, with 0.5W power rating, standard tolerance of 20 percent and operating temperature range of -55C to 125C.

With the exception of Model 91 devices that feature a resistance range of 10 ohms to 2 megaohms, all devices in the open-type trimmer product family feature a resistance range of 100 ohms to 1 megaohms. BI Technologies will also produce devices beyond these specifications to meet customer requirements.

Typical pricing for the open-type trimmers ranges from 8 cents to 18 cents, depending on quantity, with lead times from stock to six weeks.




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