BZX79 vs. BZX55

May 15, 2022 5 Replies

What is the difference between BZX79 and BZX55 (and other) series Zener diodes ?



I've tried comparing datasheets but cannot find both series from the same manufacturer.



Thanks,



Jon


Jon Schneider schrieb:

Wild guess: Just the manufacturer who wants to avoid that customers having tested and thereafter implemented diodes out of his series could switch without problems to same named types fom manufacturer B?

Bye

Reinhard

Possibly the case material? Some are glass, others are plastic...

My 1975 Motorola book says the BZX79 series are glass. I don't have a reference book that covers the BZX55 series though.

John :-#)#

(Please post followups or tech inquiries to the USENET newsgroup) John's Jukes Ltd. MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 (604)872-5757 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out."

TELEFUNKEN electronic

1985 Data Book

BZX55

CASE: JEDEC DO35

HTH

Reinhard

From (1989) Philips:

BZX79 are available in tolerances of 5, 3, 2 and 1%. They also have a lower specified leakage current, at low voltage. ( 1/2 to 1/4 of BZX55 ).

No practical difference - suspect mfr locations differed.

RL

legg schrieb:

As are BZX55: - Mit engeren Toleranzen lieferbar (Available with tighter tolerances).

I would say it is the other way round - see

Agreed - probably.

Bye,

Reinhard [not in any way affiliated with one of the manufacturers ;-)]

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