A resettable fuse or polymeric positive temperature coefficient device (PPTC) is a passive electronic component used to protect against overcurrent faults in electronic circuits. It can trip many times, without parameters change. The component is also known as a multifuse or polyfuse or polyswitch.

Features:

• radial leaded, lower hold current, solid state
• operation current:  900mA~9A
• maximum voltage: 30V 
• temperature range: -40 to 85 ℃ 
• cured, flame retardant epoxy polymer insulating material meets UL 94V-0 requirement
• bulk packaging, tape and reel available on most models

Applications:

• ideal for low voltage power supply with a load to be protected:
• computers & peripherals 
• security and fire alarm system 
• general electronics 
• loud speakers 
• automotive applications 
• power transformers