Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Old February 6th 17, 08:25 PM posted to sci.electronics.components, sci.electronics.design, sci.electronics.repair
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Default Finding 100A TVS diode?

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/fi...heets/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



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Old February 6th 17, 08:47 PM posted to sci.electronics.components,sci.electronics.design,sci.electronics.repair
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Default Finding 100A TVS diode?

Spare Change wrote...

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/fi...heets/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?


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
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Old February 7th 17, 08:39 PM posted to sci.electronics.components,sci.electronics.design,sci.electronics.repair
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Default Finding 100A TVS diode?

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/fi...heets/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





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