Electronics > Repair
Tektronix TDS3BAT rebuild
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graybeard:
I am rebuilding a Tektronix TDS3BAT NiCd battery pack.  This component was in series with the string of ten D cell NiCd batteries.  I believe it is a PTC resealable fuse.  It measure 0.08 Ohms with Kelvin test clips.

Is it a PTC? 

What brand is it?

Where can I find a spec sheet?





Thank You,
Chris
graybeard:
The date code on the chips on the circuit board in the TDS3Bat are from 2001.
T3sl4co1l:
Yes, most likely.

This is quite similar: https://www.digikey.com/en/products/detail/littelfuse-inc/RGEF700-2/5029786
Possibly the G700 series is discontinued?  May be able to find a datasheet on an archive site.  Brand is née Raychem.

7A is a reasonable rating for D cells, and ten in series needs at least a 12V rating.

FYI, your images don't show in Chrome, at least on my current configuration. https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html Suggest enabling HTTPS or migrating to a server which supports it.

Tim
graybeard:

--- Quote from: T3sl4co1l on October 31, 2020, 06:10:26 am ---Yes, most likely.

This is quite similar: https://www.digikey.com/en/products/detail/littelfuse-inc/RGEF700-2/5029786
Possibly the G700 series is discontinued?  May be able to find a datasheet on an archive site.  Brand is née Raychem.

7A is a reasonable rating for D cells, and ten in series needs at least a 12V rating.

--- End quote ---

That looks like it!
S. Petrukhin:

--- Quote from: graybeard on October 31, 2020, 05:36:55 pm ---
--- Quote from: T3sl4co1l on October 31, 2020, 06:10:26 am ---Yes, most likely.

This is quite similar: https://www.digikey.com/en/products/detail/littelfuse-inc/RGEF700-2/5029786
Possibly the G700 series is discontinued?  May be able to find a datasheet on an archive site.  Brand is née Raychem.

7A is a reasonable rating for D cells, and ten in series needs at least a 12V rating.

--- End quote ---

That looks like it!

--- End quote ---
Maybe it's a normal fuse or thermal contacts?
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