I was wondering if they make heat sinks for lm386. This amp has 8 pins and I am looking for something that has similar dimensions to absorb the heat.
I am building a amplifier/oscillator and I am using a lm386 and a 555 timer for my circuit.

I have built this circuit in the past and I have used a 0.25 mA fuse for protection. I was also wondering if there is a circuit breaker which toggles. Most of the cicuit breakers have a factor of.. hence (1 amp times 3 = 3 amps). I want to build a circuit that has a total of (333mA times 3 = 1 amp). Does a 333mA cicuit exist or something similar. I am trying to avoid using fuses and wish to use a circuit breaker that will work with the values mentioned.

 

Here's one available at Digikey:
https://www.digikey.com/product-det...ration/580100B00000G/580100B00000G-ND/1625741

You might consider a PolyFuse for your auto-reset current protection needs.
https://www.digikey.com/products/en...096&quantity=&ColumnSort=0&page=1&pageSize=25

Good luck!