FMM-20

Color:	Blue
Size / Dimension:	0.382" L x 0.591" H (9.70mm x 15.00mm)
Series:	FMM
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Fuse Type:	Automotive
Current Rating:	20A
Voltage Rating - DC:	32V
Response Time:	Slow
Package / Case:	Auto Link
Mounting Type:	Holder
Breaking Capacity @ Rated Voltage:	1kA
Approvals:	--
Operating Temperature:	--

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Fuses are safety components that protect electric circuits in consumer and industrial electronics from overcurrent and short circuit currents, as well as extreme temperatures. They are small devices that contain a strip of wire, a flag, and a case to contain the components. Fuses provide a safe, reliable way to protect the components and circuits in both industrial and consumer electronics applications. The FMM-20 is a melting one-time fuse specifically designed for high-power terms.The FMM-20 has a wide application field including household appliances, circuit board and power supply protection, communication facilities, automatic control circuit protection, industrial equipment protection, aircraft, automotive, and other electronic equipment. It provides connection from a localized ground to a circuit a distance away, which prevents damage to sensitive components from current spikes or other adverse conditions. The protection circuit will automatically shut down when the current exceeds a predetermined level.The working principle of the FMM-20 fuse is as follows. Current flows through the fuse\'s conductive strip, which is composed of a metal with melting point around 20 amperes. When the current reaches the fuse\'s rated operating range, the heat generated causes the fuse wire\'s metal to melt, breaking the internal circuit. Once the wire melts, the circuit is broken, limiting the current and preventing any further damage to the circuit.When selecting the appropriate fuse for the application, be sure to consider important electrical ratings, such as the maximum interrupting rating and the interruption capacity. For the FMM-20, the voltage rating should be between DC 18V and AC 250V, and the amperage rating should fit within the 20A range. The fuse must also have a proper physical fit and a suitable breaking capacity for the circuit. The breaking capacity is the maximum current the fuse can interrupt and should be equal to or greater than the interrupting rating.The fuse also needs to be certified by safety standards organizations, such as UL, CSA, TUV, and VDE. This ensures that the fuse meets safety requirements for the application and prevents any potential power surges or other hazards.The FMM-20 fuse is a quick-acting fuse with a simple design and is suited for applications in which overcurrent protection is critical. It features a wide application field for various industries, as well as a high interrupting rating and a breaking capacity suited to the circuit needs connected to it. It has a melting point around 20 amperes and is certified by important safety organizations. With these features, the FMM-20 provides an effective and reliable means of circuit and component protection for industrial and consumer electronics applications.

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