TAMURA NEC Microtemp Thermal Fuse TF Cutoff for Dryer heater

Thermal Cut-Off (TCO) is an overheat protection component. When the temperature inside the device or system exceeds the preset safety value, the TCO disconnects the circuit to prevent damage to the device or fire. This type of fuse is often used in electronic equipment, automobiles, and industrial equipment to provide additional safety. This article summarizes the working principle, structural characteristics, process flow, selection parameters, and design considerations of the thermal fuse.

TAMURA / SET Thermal Fuse Pin Up Type

Notes on the installation of thermal fuse:
1. When using lead bending, it should be bent from a part more than 6 mm from the root; When bending, do not damage the roots and leads, and do not pull, press, or twist the leads forcibly.
2. When the thermal fuse is fixed by screws, riveting or binding posts, it should be able to prevent mechanical creep and poor contact.
3. The connecting parts should be able to work reliably within the working range of the electrical product without displacement due to vibration and shock.
4. When welding the lead wire, the heating humidity should be limited to a minimum, and no high temperature should be applied to the thermal fuse; Do not forcibly pull, press, or twist thermal fuses and leads; After welding, it should be cooled for more than 30 seconds immediately.
5. The thermal fuse can only be used under the conditions of the specified rated voltage, current and specified temperature. Pay particular attention to the maximum continuous temperature that the thermal link can withstand.
Note: Nominal current, lead length and temperature can be Designed according to customer requirements.
N-F Series

Thermal Fuse Features
Fusing temperature thermal fuse accurate, high withstand voltage, small size, and temperature resistance.
Belonging unrecoverable type thermal fuses. Temperature fuse melting off, even if the surrounding temperature falls, it will not be turned on.
Use insulating housing.
No lead (Pb) and cadmium (Cd), and comply with RoHS.
REACH does not contain the specified 46 categories SVHC (SVHC).

Thermal Fuse Size

TAMURA Thermal Fuse

Cable length	Dimensions (mm)
Cable length	A	B	C	D	E
Standard N-F	4.1±0.1	5.2±0.1	2.0±0.1	0.53±0.05	36±3.0
Long N-F(L)	4.1±0.1	5.2±0.1	2.0±0.1	0.53±0.05	68±3.0

Model	Rated temperature Tf（℃）	Operating temperature （℃）	Rated current （A）	Rated voltage (V)	maintaining the temperature Th（℃）	Maximum temperature limit Tm（℃）
N06F	65	61±3	1.0	AC250	50	200
N0F	76	72±3	1.0	AC250	50	200
N1F	86	81±2	1.0	AC250	60	200
N2F	102	98±3	1.0	AC250	75	200
N3F	115	111±2	1.0	AC250	95	200
N4F	127	123±2	1.0	AC250	105	200
N13F	133	129±3	1.0	AC250	105	200
N5F	136	131±2	1.0	AC250	100	200
N6F	139	134±2	1.0	AC250	110	200
N7F