Resettable surface mount fuses are a reusable type of circuit protection device that is able to be mounted onto printed circuit boards. They trip when the current gets too high, but will function again when conditions return to an acceptable level.
How do resettable surface mount fuses work?
Resettable surface mount fuses form part of the circuit on a PCB (printed circuit board), allowing electrical current to flow through them. When a fault such as overcurrent is detected in the circuit, they are tripped, forcing a break in the circuit which prevents electricity from continuing to flow. This prevents any damage to the circuit or attached devices. Unlike non-resettable surface mount fuses, they can be used over and over, as they will reconnect the circuit when conditions return to normal.
Types of resettable surface mount fuses
Resettable surface mount fuses have a number of characteristics that can vary between models, including terminal material, voltage rating and their operating temperature range. They also come in various different sizes.
Description:
Littelfuse 451 series of NANO2 surface mount fuses
are very small wire-in-air (WIA) square shape surface mount devices which are suitable for a variety of secondary side circuit over-current protection applications. Very fast actingSmall sizeLow temperature de-rating.
Description:
Tyco 0603 SFP Series Pulse Tolerant Chip Fuses
have high inrush current withstand capability and provide overcurrent protection for DC power systems. These devices combine a silver fusing element and monolithic, multilayer design to provide strong arc suppression characteristics. They ...
Description:
RS slow blow TE5 fuses are a convenient
and reliable solution to a vast array of application requirements. Base and cap in black thermoplastic, UL 94-V0Round pins in tin-plated copperVibration MIL-STD-202G, Method 201 (10-55Hz x 3 axis / no load)Salt ...
Description:
Cooper Bussmann SR-5H series time-delay subminiature fuses are
an ideal PCB fuse solution and can be used within a wide variety of applications. Internationally accepted for primary and secondary overcurrent protectionHigh inrush withstand capabilityCompatible with leaded and lead-free reflow and ...
