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Ametherm debuts surface-mount thermistors

Posted: 08 Oct 2013     Print Version  Bookmark and Share

Keywords:Ametherm  surface-mount thermistor  SM04  SM06  SM08 

Ametherm has announced 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 200Ω to 470kΩ with tolerances down to one per cent, beta from 2500°K to 4500°K, and an operating temperature range of -40°C to 125°C. 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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