TIP33C brand substitute

[altec9440]

NXP VS ON Semiconductor

Are TIP33C from theses two companies really equivalents (same process, same rbb & cob) ?

thanks

 

[JMFahey]

Both are serious, very competent manufacturers, so TIP3C sourced from any of them must be VERY good.

Same process? .... who knows? You´d need a spy at the Factory.
Who cares anyway? ... I am certain both meet all TIP33C requirements and then some.

Use tham with confidence, and if it is very very very important for you, grab a handful and test them yourself.

Any "Forum answer" will certainly 100% match ghose *you* have, given to standard manufacturing tolerances.

Which again will be very tight coming from both Companies.

 

[altec9440]

Who cares anyway?

may be the guy with obsolete stock of TIP34C from NXP who care about use in complementary designs..

 

[JonSnell Electronic]

TIP*** must conform to the manufacturers specification, which is a universal specification.
For different Hfe ratings, match them if you want exact tolerances but if the data sheet states Hfe70 then that will be a selected average nominal value. All voltages stated in the specification sheet are for all manufacturers.

 

[JMFahey]

may be the guy with obsolete stock of TIP34C from NXP who care about use in complementary designs..

I´ll self quote since maybe you didn´t read the full sentence:

I am certain both meet all TIP33C requirements and then some

Which means: use your NXP ones, "obsolete" or not.
Which by the way they are not. 🙂

 

[davidsrsb]

Parameters like rbb, which are not guaranteed in the datasheet, may be all over the place. Even from the same brand, who may well be using different processes over the years.