Detpak

A detpak is an explosive device from the War for Cybertron portion of the Aligned continuity family.

Fall of Cybertron version.

A detpak or det-pack is a device that will detonate an object it is placed on. Be careful where you stick that thing! The Decepticons began using Dark Energon detpaks after Megatron got control of the stuff. Starscream carries an EMP variant of the detpak which he enjoys stealthily attaching to unwary enemies.

Games

War for Cybertron

War for Cybertron version - they used to be a lot smaller!

Starscream, Thundercracker and Skywarp used det-packs during their mission to reactivate the Geosynchronous Energon Bridge. They tended to be the primary way for the Decepticons to corrupt stuff with Dark Energon when Megatron wasn't doing it personally. War for Cybertron

Fall of Cybertron

The Decepticons attached a detpak to the door to the Autobot City nerve center, which Optimus Prime and Warpath had to carefully remove before they could enter. Vortex, Cliffjumper and Starscream all used detpaks in their missions... the latter with a bit more enthusiasm than is considered healthy. Fall of Cybertron

Transformers: Rise of the Dark Spark

Cliffjumper attempted to planet a detpak on Bruticus only for the combiner to shake off the Autobot, the detpak harmlessly falling to the ground. Rise of the Dark Spark