Electronic Design

Precision Boosted In SOT23 Voltage Dividers

The DIV23 series voltage divider uses the patented self-passivating TaNFilm (Tantalum Nitride) on silicon technology and features an extended resistance range to 200 kilohms. Tantalum nitride does not dissolve when exposed to moisture and voltage, making it a much more stable solution for applications in harsh environments. The surface-mount devices have an element power rating of 100 mW and a package power rating of 1.0 W at 70°C. Resistance ranges from 10 ohms to 200 kilohms per resistor, with an absolute tolerance to ±0.1% and R1 ratio tolerance to ±0.05%. Absolute TCR is 25 ppm/ºC, and tracking TCR is down to 2 ppm/°C. Rated operating voltage is 100 V. Operating temperature range is from -55°C to 125°C. The DIV23 dividers come in SOT23 packages, with R1 connecting to pin 1 and R2 connecting to pin 2. Measuring just 0.1125- by 0.051-in. with a board-mounted profile of 0.0305 in., the dividers are available in standard tape and reel packaging and are compatible with high-speed assembly equipment and solder processes. The devices are available with either RoHS-compliant or Sn/Pb terminations. Typical pricing for the DIV23 voltage divider starts at $0.59 each in quantities of 1000. Lead time is from stock to 10 weeks. TT ELECTRONICS IRC, Corpus Christi, TX. (361) 992-7900.



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