🚀 go-pugleaf

In <tooraj.721835315@daneel.rdt.monash.edu.au> tooraj@daneel.rdt.monash.edu.au (Tooraj Enayati) writes:


>I am having problem finding the pinout for 4N25/4N28.
>Could some one please send me the pinout for it. 

>I need to switch a circuit on when the phone is ringing.
>Is 4N25 suitable for that. I  think I should be able to
>get it to drive a Triac or a Diac, or at worst a relay.

>Any help or comments much appreciated.

>Best of regards
>-- 
>==============================================================================
>Tooraj Enayati     Melbourne     Australia     tooraj@daneel.rdt.monash.edu.au
>Monash University       Robotic and Digital Technology       (Graduate/Alumni)
>==============================================================================

This an Optoisolator with NPN transistor for output and has following 
characteristics:

VISO = 7500 V (Isolation Voltage)
PT  =  250 mW  (Total Power)
CTR  = 20 % (Current Transfer Ratio)
If = 80 mA (Maximum Forward Current)
Vr = 3 V (Maximum reverse Voltage)
BVCBO = 70 V  (Max. Collector to base Votage)
BVceo = 30 V (Max. Collector to Emitter Voltage)
IC  = 100 nA (Max  Collector Dark Current)



                        4N25/4N28
                      ----------------
               Anode -|1-|   |------4|- Base
                      |  PD  |       |
             Cathode -|2-|   |   /--5|- Collector
                      |      | -|    |
                     -|3         \--6|- Emitter
                      ----------------

If you want a regular ring indicator try Motorola's Tone ringers:

MC34012
MC34017
MC34117

                 With highest reagards,
                      Babak   Sehari.
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