BQ20Z95 chemical fuse question

Mike_chute

I am using a Sony SFH-1215B chemical fuse that has a max 15amp current. I want to make the pack larger 3s6p with a max of 22 amps. Can I put two SFH-1215B in parallel?

mike

over 13 years ago

0 Chase7071949597 over 13 years ago

TI__Genius 10235 points

It's typically not recommended to use fuses in parallel. A slight resistance difference between the fuses can result in one fuse being blown and the other being only partially blown, which means you still have a discharge path. The best option would be to find a single fuse that can handle 22A.

0 Mike_chute over 13 years ago in reply to Chase7071949597

Intellectual 825 points

I only know of the sony SHF1215B series of chemical fuses. They don't have any thing greater. Do you have a suggestion?

Mike

0 Chase7071949597 over 13 years ago in reply to Mike_chute

TI__Genius 10235 points

I don't have any suggestios, unfortunately. They are not typically available from distributors and we don't add fuses to any of our reference designs or EVMs. Your best bet would be to contact Sony.

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BQ20Z95 chemical fuse question