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2 simple questions

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bogdanfirst

New Member
1. for a photo transistor wich has only 2 leads(a short and a long one) wich one is th emitter and wich one is the collector?
2. a reaplacement for 2n3094 transistor in the Bc series?
 

Sebi

Active Member
Are You sure with 2N3094? As i found, it's a a thyristor 600V 70A!
With two pins maybe a photodiode.Check it with multimeter.
 

kinjalgp

Active Member
I have used BC547/548 instead of 2N3904 in many places and it works for me. Most of my applications were high speed switching. I have't tested it in active region i.e. amplifiers. So better compare the datasheets before replacing it in amplifiers.
 

Chippie

Member
Got a device number for the photo tranny ?

shorter lead is collector 8)
 

bogdanfirst

New Member
well, i think it is IRE5 but this might be just the part number code from the place i bought it. it says 30V and 100mW
 

daviddoria

New Member
i've been playing with some infrared photo transistors, and the flat side of the plastic bulb was the collector
 
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