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Brass Nipple 1/8NPT
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NPN inverter

NPN signal-inverter.
Normally for signals eg.

  • soundcard => NPN inverter => HALL-input
  • VR to HALL adapter => NPN inverter => dash input (or other input) with strong pullup
  • Logiclevel ("i259") ignoutput or output from PC (eg. for CNC milling applications or other experiments: Parallel port, or raspberry / beaglebone output) => NPN inverter => 5..30V relay or small pneumatic valve DC-solenoid, in either case with flyback protection (1..3A diode eg. BY399, stripe-marked cathode to solenoid+, anode to solenoid switched- = output of NPN inverter. This flyback diode is often hidden in the relay/solenoid connector/socket).
  • protecting processor signal from external environment (static discharge or other damage; eg. devices ordered with bridge output driver eg. for electronic throttle are internally equipped with NPN-inverter protection for the PWM signal)
  • many other useful applications

If you need slightly more than 210 mA (eg for 12V flyback-protected relay or other solenoid with resistance<71 Ohm) or greater than 37V, specify in the order comment.
DSUB9 and/or shrinktube provided.

This product was added to our catalog on Thursday 17 July, 2014.
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