can any one help me to find this transistor datasheet ?

[alalbeet]

Hi all please help me to find these two datasheets of two transistors as follows

C 331
59014

and the second is

H 331
59012

I saw them in Infrared transmitter so I want to understand its function as i saw its stability

thanks alot​

 

[mvs sarma]

Hi all please help me to fine these two datasheets of two transistors as follows
C 331
59014
and the second is
H 331
59012
I saw them in Infrared transmitter so I want to understand its function as i saw its stability thanks alot​

whether 59012 or S9012
there are transistors with 9012 and 9014 numbers

like wise. C331 could be 2sc331

H331 appears to be SFH331, a photo transistor
perhaps , www.alldatasheet.com helps you to download data sheets and understand.

 

[hotwaterwizard]

Since we don't have a picture or any more info here is what I found.