Rev. , Dec Optocoupler, Phototriac Output, V VDRM. KP, KPG Series. Vishay Semiconductors. DESCRIPTION. KP Optocoupler, Phototriac Output, V VDRM. Description. The KP( G) series consists of a phototransistor optically coupled to a gallium arsenide. KP datasheet, KP pdf, KP data sheet, datasheet, data sheet, pdf, Vishay, Optocouplers.

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K3020P/ K3020PG Series – Optocoupler, Phototriac Output, 400 V VDRM – Vishay Optocouplers

Discussion in ‘ The Projects Forum ‘ started by blackcapsteveApr 24, Apr 24, 1. Apr 8, 8 0. Hi All I want to build a theatre phone ringer.

I actually want the timer to not buzz, but to instead drive a relay which sends pulses of V down the line to the phone on stage. I bought a goody bag from Maplin and set about cataloging the bits I received, and in the bag was a KP, which I found a datasheet for.


I thought that this was perfect, because it is a low voltage timer circuit switching a high level ring circuit, BUT, the KP switches AC.

I built a test circuit layout attached and something m3020p happens.

It will only go out if I break the circuit. When I satasheet the circuit the LED stays off. Sorry if this question is a bit niave regards steve. KP – Optocoupler with Phototriac Output. Apr 24, 2. Sorry Q2 should have said “if the 4 6 circuit was AC”.

K3020P/ K3020PG Series – Optocoupler, Phototriac Output, 400 V VDRM – Vishay Optocouplers

Apr 24, 3. Mar 14, 20, 5, As the datasheet states, the KP had a Triac output. If you look up Triac you will see that once a Triac is triggered it stays on until the current is reduced to zero, as you found.

That’s why a Triac is normally used with AC circuits since the voltage and thus current goes to zero twice each cycle, turning off the Triac. What you want is a DC solid-state relay.

Does the phone require Vdc or Vac? Apr 24, 4. Thanks – I’m a bit new to this. How to test the optocoupler MOC??


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KP Datasheet(PDF) – Vishay Siliconix

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