Replacing Darlington transistor

Thread Starter

tinkerman

Joined Jul 22, 2012
151
Anyone try to replace a darlington transistor with two regular transistors?
I'm looking at BU931T darlington. it has 10 amp capacity. Could two standard transistors with the second having similar current capacity replace the original?
 

crutschow

Joined Mar 14, 2008
34,281
Yes, in general you can replace a Darlington transistor with two regular transistors (it originally was called a Darlington pair and that's how it was done). The first transistor can be smaller but the second must be able to carry the maximum load current.
 

Ron H

Joined Apr 14, 2005
7,063
Anyone try to replace a darlington transistor with two regular transistors?
I'm looking at BU931T darlington. it has 10 amp capacity. Could two standard transistors with the second having similar current capacity replace the original?
It also has Vces=500V, Vceo=400V.
Also, the "smaller" transistor will have to have at least 500V Vces, and minimum Hfe of around 30 at Ic=1Amp.
 
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