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BZX79 vs. BZX55
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Jon Schneider
May 15, 2022, 5:21:50 AM5/15/22
to
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
diodes ?
I've tried comparing datasheets but cannot find both series from the
same manufacturer.
Thanks,
Jon
Reinhard Zwirner
May 15, 2022, 12:42:27 PM5/15/22
to
Jon Schneider schrieb:
having tested and thereafter implemented diodes out of his series
could switch without problems to same named types fom manufacturer B?
Bye
Reinhard
> What is the difference between BZX79 and BZX55 (and other) series Zener
> diodes ?
Wild guess: Just the manufacturer who wants to avoid that customers
> diodes ?
having tested and thereafter implemented diodes out of his series
could switch without problems to same named types fom manufacturer B?
Bye
Reinhard
John Robertson
May 15, 2022, 4:07:22 PM5/15/22
to
My 1975 Motorola book says the BZX79 series are glass. I don't have a
reference book that covers the BZX55 series though.
John :-#)#
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Reinhard Zwirner
May 15, 2022, 6:08:31 PM5/15/22
to
John Robertson schrieb:
1985 Data Book
BZX55
CASE: JEDEC DO35
HTH
Reinhard
> On 2022/05/15 2:21 a.m., Jon Schneider wrote:
>> 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
>
> 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.
TELEFUNKEN electronic
>> 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
>
> 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.
1985 Data Book
BZX55
CASE: JEDEC DO35
HTH
Reinhard
legg
May 16, 2022, 9:36:07 AM5/16/22
to
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
Reinhard Zwirner
May 16, 2022, 4:36:59 PM5/16/22
to
legg schrieb:
tighter tolerances).
> They also have a lower specified leakage current, at low voltage.
> ( 1/2 to 1/4 of BZX55 ).
I would say it is the other way round - see
<https://www.bilder-hochladen.net/files/big/12b4-144-1a15.jpg>
> No practical difference - suspect mfr locations differed.
Agreed - probably.
Bye,
Reinhard
[not in any way affiliated with one of the manufacturers ;-)]
> On Sun, 15 May 2022 10:21:47 +0100, Jon Schneider
> <j...@jschneider.tenreversed> wrote:
>
>> 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
>
> From (1989) Philips:
>
> BZX79 are available in tolerances of 5, 3, 2 and 1%.
As are BZX55: - Mit engeren Toleranzen lieferbar (Available with
> <j...@jschneider.tenreversed> wrote:
>
>> 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
>
> From (1989) Philips:
>
> BZX79 are available in tolerances of 5, 3, 2 and 1%.
tighter tolerances).
> They also have a lower specified leakage current, at low voltage.
> ( 1/2 to 1/4 of BZX55 ).
<https://www.bilder-hochladen.net/files/big/12b4-144-1a15.jpg>
> No practical difference - suspect mfr locations differed.
Bye,
Reinhard
[not in any way affiliated with one of the manufacturers ;-)]
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