Finding 100A TVS diode?

[Spare Change]

BZW6-26, 26v TVS unidirectional diode, through-hole, obsolete, n/a.

The original datasheet says that the 600W peak pulse power is measured over
10/1000 uS waveform, but the 100A forward surge current is spec’d over 1/2
cycle of 60 Hz sine:

http://diotec.com/tl_files/diotec/files/pdf/datasheets/bzw065v8

All replacements I see, the surge current is nowhere near 100A or is spec’d
at 10/1000 uS waveform.

Surely the original isn’t all that unique a part...? Anyone know of a
direct replacement?

Thanks,
Dave

[Winfield Hill]

Spare Change wrote...

Fagor (my TVS favorite) uses the same spec. So
does ST. Try the -28 version for distributor
inventory. Fagor's slightly larger 5kp version,
8.7 x 9 mm, is rated for 500A surge. There are
larger ones available.


--
Thanks,
- Win

[Klaus Bahner]

On 06-02-2017 21:25, Spare Change wrote:
> BZW6-26, 26v TVS unidirectional diode, through-hole, obsolete, n/a.

It's not shown as obsolete by Diotec. They claim distributor stock of
several thousand in PL, DE and SK.

>
> The original datasheet says that the 600W peak pulse power is measured over
> 10/1000 uS waveform, but the 100A forward surge current is spec’d over 1/2
> cycle of 60 Hz sine:
>
> http://diotec.com/tl_files/diotec/files/pdf/datasheets/bzw065v8
>
> All replacements I see, the surge current is nowhere near 100A or is spec’d
> at 10/1000 uS waveform.

P6KE-30A from ST is a direct replacement, with exactly the same
specifications.


Klaus

>