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Ametherm intros latest surface-mount thermistors

Posted: 07 Oct 2013 ?? ?Print Version ?Bookmark and Share

Keywords:surface-mount thermistor? LCD control? relay coil?

Ametherm has released three series of surface-mount thermistors for high-accuracy temperature compensation and measurement. According to the firm, the SM04, SM06 and SM08 series devices offer a choice of 125mW, 200mW and 250mW maximum power ratings, respectively, and dissipation constants of 1.10mW/C, 1.50mW/C and 2mW/C.

With thermal time constants down to 1.5s and low profiles to 0.35mm, the thermistors claim to offer very fast response times while saving space in LCD controls, relay coils, crystal oscillators and hybrid circuits. Providing a cost-effective alternative to radially leaded NTC and through-hole thermistors, SM04, SM06 and SM08 devices lower costs by supporting auto insertion during manufacturing, stated the company.

The thermistors offer a range of resistance values from 200 to 470k with tolerances down to one per cent, beta from 2500K to 4500K, and an operating temperature range of -40C to 125C. Featuring nickel barrier terminations, the SM04, SM06 and SM08 series are geared for wave and reflow soldering and offer a Moisture Sensitivity Level of 2 for high reliability. The devices are available in standard tape-and-reel packaging in quantities from 100 to 5,000 pieces.

Offered through Mouser, samples of the SM04, SM06 and SM08 series are available in three to five days. Production quantities are available with lead times of six weeks.

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