Fuse sockets are devices used to protect printed circuit boards (PCBs) from damage during fuse replacement by allowing easy removal and insertion of fuses. They consist of a brass or alloy shell, multi-finger contact clips, and an insulator body. Fuse sockets prevent heat damage to sensitive PCB components from soldering or desoldering during fuse replacement. They find applications where fuse replacement is common, such as in medical equipment, aerospace, consumer electronics, automotive, and military systems.

1. FUSE SOCKET

2. WHAT IS FUSE SOCKET?
• Fuse Socket is device used for preventing damage to
expensive components loaded on PCB, especially while
soldering or desoldering the fuse.
• It provides easy removal of damaged fuse after
breaking the circuit.

3. WHY FUSE SOCKET?
• The fuse breaks the circuit if a fault in an appliance causes too
much current flow. This protects the wiring and the appliance if
something goes wrong.
• For many electronic applications, fuse replacement is
common. But fuse replacement can involve risk of damage to the
PCB loaded with expensive components, especially while being
soldered or desoldered.
• The High temperature soldering or desoldering is reason for
damaging sensitive components on PCB. Hence for the protection
of these PCB components and easy replacement of damaged fuse
it is essential to use Fuse Socket.

4. CONSTRUCTION OF FUSE SOCKET:
• Fuse Socket consists of Shell/Sleeve, Multi-finger Contact Clips
and Insulator Body.
• Shell or sleeve is made of brass alloy known for its strength,
conductive, and thermal properties.
• Press-fit assembled inside each shell is a highly reliable, multi-
finger beryllium copper contact clip, which scores the mating
device lead, forming a gas-tight electrical and mechanical
connection.
• An insulator made of glass filled PBT or Black Nylon 46. High
temperature sockets are made with molded plastic UL94V-O.

5. ADVANTAGES:
• Providing safe removal and insertion of fuse
• Prototyping new circuits
• Reducing lead time
• Cost-effective connection for industrial & commercial
environments

6. APPLICATIONS:
In medical
equipment’s
1
For aerospace
applications
2
In consumer
electronics
3
In automotive
industries
4
For military
applications
5

7. VIDEO:
The video on next slide will illustrate the
assembly of fuse socket.

8. • Author Nalin P. Sheth, MBA Harvard, is Managing Director of Champion
Electronics Pvt. Ltd., Pune, India.
• Champion Electronics is serving electronics industry all over the world from
1975.
• Contact Details:
• Email: sales@champelec.com
• Ph: +91-8928502180.
• Website: www.champelec.com