Diode type?

[merlin el mago]

Please help me to find the V & A of attached photo diode.

TIA

 

[merlin el mago]

Could I use these to substitute?

STPSC15H12D | Diodo, STPSC15H12D, Alta tension, 15A, 1200V, TO-220AC, 2-Pines, Schottky SiC | RS Components

 

[Rick PA Stadel]

Arrow.com lists "byp101" as a 1000V 15A 40W 80ns part from Infineon Technologies AG, and 'obsolete', with no price or availability listed.

It would be worth checking around the circuit to confirm polarity before installing it, though -- if you can get one.

Regards

 

[merlin el mago]

Exist Sic substitute?

 

[trobbins]

Something quirky about that file PRR !
Link is here: https://dalmura.com.au/static/1-byp101.pdf

You need to go to your device supplier website and do a parametric search for something similar as an alternative, and then inspect the two datasheets to see if the alternative is acceptable.

 

[merlin el mago]

Something quirky about that file PRR !
Link is here: https://dalmura.com.au/static/1-byp101.pdf

You need to go to your device supplier website and do a parametric search for something similar as an alternative, and then inspect the two datasheets to see if the alternative is acceptable.

What specs have I to check:

Forward current?
Repetitive peak reverse voltage?
Reverse recovery time?
Power dissipation?

TIA

 

[Mark Tillotson]

It would be worth checking around the circuit to confirm polarity before installing it, though

Why? The device has cathode and anode clearly marked, as does the datasheet.

 

[merlin el mago]

Yes the device is marked so no problem with polarity.

 

[Rick PA Stadel]

Kay, yep, sorry -- didn't notice that!

Maybe my eyesight is worse than I thought!

Cheers

 

[merlin el mago]

What specs have I to check:

Forward current?
Repetitive peak reverse voltage?
Reverse recovery time?
Power dissipation?

TIA

Nobody?

 

[trobbins]

Yup, do a sort on those and see what is similar and report your findings.

 

[merlin el mago]

Attached pdfs

 

[merlin el mago]

BYP 101

Forward current 15A
Repetitive peak reverse voltage: 1000V
Forward voltage drop (25ºC 2V typ. 2.4V max.) (100ºC 1.7V typ.)
Reverse recovery time 80nS
Power dissipation 40W

STPSC15H12

Forward current 15A
Repetitive peak reverse voltage: 1200V
Forward voltage drop (25ºC 1.35V typ. 1.5V max.) (150ºC 1.75V typ. 2.25V max.)
Reverse recovery time not specified (SiC no or negligible reverse recovery)
Power dissipation not specified

 

[trobbins]

The STPSC15H12 is a schottky diode - it has substantial junction capacitance (in lieu of a reverse recovery effect). Unless you know the application, then that may not be a good replacement.

Are you able to buy diodes from an on-line supplier? Is the STPSC15H12 the only part available?

 

[Rick PA Stadel]

On the chance that DigiKey isn't out of the question for you, try cut/pasting below into you favorite browser. They show 10 p/n's that are 1200V, 15A, TO-220, and In Stock, ranging from $1.33 to $13.99 USD, including some SiC Schottky's and even a 'FRED'. One of those ought to be a good fit.

Diodes - Rectifiers - Single | Discrete Semiconductor Products | DigiKey

Wow. Seeing it makes me wonder if it'll work, but it might save you a minute or two.

edit: Oh, good -- the website made a reasonable-looking thing out of it.

 

[merlin el mago]

The diodes are for 75W class A PSU.

 

[trobbins]

That is like saying I need a diode for a car - it provides no detailed information.

 

[Mark Johnson]

Several howlers already, and the thread is only up to post #18. Please proceed, it is most delightful.

 

[Vovk Z]

The diodes are for 75W class A PSU.

That means I guess you can use Sic diodes with no problem.

 

[merlin el mago]

That means I guess you can use Sic diodes with no problem.

Thank you.