How can C4 be detonated by heat or shock, only by electricity?

[Superposed_Cat]

I was thinking about electroactive polymers, and wondering if any exist that are immune to high temperatures, and although explosive decomposition is a completely different subject, it got me thinking about c4.

Chemically speaking, what gives a compound such as c4 the ability to not detonate via the thermal energy or kinetic but can be detonated by electricity?

Almost all explosives I know off will detonate with 2/3, what makes c4 so different?

Any insight appreciated.

 

[phinds]

Have you even looked up how C4 works? It is not detonated by electricity, it is detonated by the shock-wave created by a blasting cap (detonator)

https://en.wikipedia.org/wiki/C-4_(explosive)#Detonation