Thermal Fuses

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Opening Temperature Tolerance

-9° F to 0° F

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DFARS Specialty Metals

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18 Products

Also known as thermal cut-offs, these fuses prevent equipment from overheating by opening circuits to cut off power. They react to excessive temperature in the same way electrical fuses react to excessive current. They can’t be reset, so replace them once they open.

Choose a fuse based on your device's normal operating temperature and the temperature at which you want the fuse to trip.

Parallel Lead—Parallel lead fuses take up less space on a crowded circuit board than inline lead fuses. Solder to connect.

Maximum Operating Temperature—Maximum operating temperature is the highest temperature a fuse can handle on an ongoing basis. These fuses tolerate temperature spikes that fall between the two values, but prolonged exposure to temperatures above the maximum operating temperature may cause the fuse to fail.

Opening Temperature—Opening temperature is the temperature at which the fuse trips and turns off the device.

					Overall
	Max. Operating Temp., ° F	Opening Temp., ° F	Current, amp	Voltage, V AC	Lg.	Wd.	With Blown Fuse Indicator	Wire Dia.	Certification	Pkg. Qty.		Pkg.
Inline Lead







				5/32" Overall Diameter

				122	162	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	000000


				140	184	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	00000
				169	209	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	00000
				176	220	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	00000
				190	228	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	00000
				201	250	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	00000
				223	263	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	00000
				230	287	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	00000
				262	306	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	00000
				295	333	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	00000
				320	364	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	00000


				324	378	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	00000
				376	421	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	00000
				392	464	10	250	2 1/2"	—	No	0.04"	UL Recognized Component, CSA Certified, CE Marked	10	0000000	00000


				Parallel Lead



						171	216	3	250	2 3/4"	1/4"	No	0.024"	UL Listed, C-UL Listed	20	0000000	00000


						192	239	3	250	2 3/4"	1/4"	No	0.024"	UL Listed, C-UL Listed	20	0000000	00000
						217	266	3	250	2 3/4"	1/4"	No	0.024"	UL Listed, C-UL Listed	20	0000000	00000
						232	275	3	250	2 3/4"	1/4"	No	0.024"	UL Listed, C-UL Listed	20	0000000	00000