Optocoupler

[Fred Bartoli]

Hi,

anyone knows who made the KT3172 optocoupler, and may be has a datasheet?
It seems I can't find it.

Thanks,

 

[Jamie]

Hi,

anyone knows who made the KT3172 optocoupler, and may be has a datasheet?
It seems I can't find it.

Thanks,

Like a lot of numbers..

from what I can see it is a 4 pin device ? and if so, the pins 1 and 2
are the input LED or LED's, if could be an AC type? to test that, you
can use the diode test and it should test the same both ways as a LED
diode.

The output looks like a NPN transistor. Collector is on 4 and emitter
on 3.

But, maybe I have it incorrect..

JAmie

 

[Franc Zabkar]

anyone knows who made the KT3172 optocoupler, and may be has a datasheet?

Manufacturer/Proponent: OPTEK INC
http://www.armyproperty.com/product/57036/KT3172/

Optek part number search turned up nothing:
http://www.optekinc.com/partNumberSearch.aspx?partNumber=kt317

FWIW, the following discussion suggests that KT3172 crosses to HP part
1980-1075:
http://tech.groups.yahoo.com/group/hp_agilent_equipment/message/6834

- Franc Zabkar

 

[Franc Zabkar]

FWIW, the following discussion suggests that KT3172 crosses to HP part
1980-1075:
http://tech.groups.yahoo.com/group/hp_agilent_equipment/message/6834

The service manual for the HP3457 may have some specs and circuits:
http://elektrotanya.com/?q=showresult&what=HP3457A&kategoria=&kat2=schematics

- Franc Zabkar