Darlington transistor 2SD1275B

[boylesg]

Does anyone know where I might find a datasheet for this?

I can find the datasheet for 2SD1275A easily enough, but not B.

 

[Tipu606]

because there is no such transistor with those specs
2SD1275 is rated 60V and 2SD1275A is rated 80V

 

[boylesg]

because there is no such transistor with those specs
2SD1275 is rated 60V and 2SD1275A is rated 80V

Does that mean there is a misprint on the transistor I have here?

It definitely reads D1275B - I can post a photo if you like.

2SD1275B is apparently an NPN with a higher hFE.

2SD1275A = 74
2SD1275B = 90

According to my multimeter.

 

[FvM]

The measurements with a multimeter hfe tester are meaningless. SD1275 current gain is > 1000 (as with any darlington). But the transistor has integrated resistors that give a low hfe reading with the low currents used by the hfe testers.

 

[boylesg]

The measurements with a multimeter hfe tester are meaningless. SD1275 current gain is > 1000 (as with any darlington). But the transistor has integrated resistors that give a low hfe reading with the low currents used by the hfe testers.

I figured something like that given what the datasheet said the hFE was.

I was just using the measurement to figure out what sort of transistor it was because usually, if you stick the wrong type of transistor in the wrong holes, you get a measurement of hFE = 0.