Resettable Thermal Fuses

Resettable thermal fuses are a reusable type of circuit protection device used in heating applications. They provide a weak link in a circuit, meaning that when a fault such as overcurrent or a short circuit is detected, the fuse will break the circuit and stop the flow of current, preventing further damage from occurring.

How do resettable thermal fuses work?

Resettable thermal fuses act in a similar way to a resistor, in that they increase their resistance as the temperature rises. When the temperature reaches a certain level, a wax pellet inside of the fuse will melt, cutting off the flow of electrical current, and then when the temperature drops again the wax will solidify, allowing the circuit to function again. Unlike non-resettable thermal fuses, they can be used more than once.

Types of resettable thermal fuses

Resettable thermal fuses mainly vary by their functioning temperature, which will depend on the heating application they are used with. They can also have differing levels of trip and reset tolerance, also measured by temperature.


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Description Price Functioning Temperature Body Height Body Length Body Width Lead Orientation Maximum Current Voltage Rating Wire Diameter Wire Length
RS庫存編號 176-9205
製造零件編號P82 140 05100
BrandLimitor
HK$30.65
單位
+140°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 176-9154
製造零件編號P82 90 05100
BrandLimitor
HK$39.28
單位
+90°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 204-7433
製造零件編號Q82 A 90 05 100
BrandLimitor
HK$29.40
單位
+90°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 176-9132
製造零件編號P82 70 05100
BrandLimitor
HK$36.61
單位
+70°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 176-9198
製造零件編號P82 125 05100
BrandLimitor
HK$35.73
單位
+125°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 204-7455
製造零件編號Q82 A 110 05 100
BrandLimitor
HK$40.31
單位
+110°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 176-9126
製造零件編號P82 60 05100
BrandLimitor
HK$35.54
單位
+60°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 176-9081
製造零件編號P82 45 05100
BrandLimitor
HK$35.73
單位
+45°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 176-9176
製造零件編號P82 105 05100
BrandLimitor
HK$35.54
單位
+105°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 204-7398
製造零件編號Q82 A 60 05 100
BrandLimitor
HK$38.79
單位
+60°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 204-7449
製造零件編號Q82 A 100 05 100
BrandLimitor
HK$31.07
單位
+100°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 176-9211
製造零件編號P82 145 05100
BrandLimitor
HK$35.54
單位
+145°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 176-9097
製造零件編號P82 50 05100
BrandLimitor
HK$35.54
單位
+50°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 176-9104
製造零件編號P82 55 05100
BrandLimitor
HK$35.77
單位
+55°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 176-9160
製造零件編號P82 100 05100
BrandLimitor
HK$37.95
單位
+100°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 204-7483
製造零件編號Q82 A 140 05 100
BrandLimitor
HK$46.28
單位
+140°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 204-7382
製造零件編號Q82 A 55 05 100
BrandLimitor
HK$42.60
單位
+55°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 204-7427
製造零件編號Q82 A 80 05 100
BrandLimitor
HK$35.21
單位
+80°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm
RS庫存編號 204-7405
製造零件編號Q82 A 70 05 100
BrandLimitor
HK$41.54
單位
+70°C 8mm 17.5mm 4mm Radial 2.5 A 250 V ac 0.51mm 100mm