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2PCS smartec SMT16030 t temperature sensor
2pcs SMT16030 T (package TO220)
SMT16030T - temperature sensor with a digital output. The one wire (duty cycle) output can be connected to all kind of microcontrollers directly without the need of A/D conversion. The temperature range is 45 C to 150 C. The sensor is available in various housing like T018, T092, T0220 and for high volume production in SOIC.
The SMT160-30 is a three terminal integrated temperature sensor, with a duty-cycle output. Two terminals are used for the power supply of 5 Volts and the third terminal carries the output signal. A duty cycle modulated output is used because this output is interpretable by a micro-processor without A-D converter, while the analogue information is still available. The C-mos output of the sensor can handle cable length up to 20 meters. This makes the SMT160-30 very useful in remote sensing and control applications.
Storage temperature -50 to +150
The output signal: As stated in the specifications the output is a square wave with a well-defined temperature-dependent duty cycle. The duty cycle of the output signal is linearly related to the temperature according to the equation:
D.C. = 0.320+0.00470*t D.C. = duty cycle , where t = Temperature in C
Easy calculation shows that for instance that at 0 C the
D.C.= 0.320 or 32.0 % and at 130 C the D.C.= 0.931 or 93.1 %
