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TMOV Thermally Protected Varistors

Littelfuse TMOV Thermally Protected Varistors are radially leaded metal oxide varistors (MOVs) with a thermally activated element designed to open during overheating. The integrated thermal element and the enclosure design work together to facilitate surge-protection module compliance to UL1449. These performance capabilities of Littelfuse TMOV varistors serve cord or permanently connected applications. These Littelfuse varistors offer quick thermal response due to the proximity of the thermal element to the MOV body. This integrated configuration provides the added benefit of lower inductance than most discrete solutions.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Product	Mounting Style	Termination Style	Voltage Rating AC	Voltage Rating DC	Varistor Voltage	Clamping Voltage	Diameter	Max Surge Current	Surge Energy Rating	Capacitance	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Varistors 175V 20KA SQ 25MM PB FREE 25S TMOV25SP175M Littelfuse 1: 4,99 € 575In Stock	Mfr. Part No. TMOV25SP175M Mouser Part No 576-TMOV25SP175M	Littelfuse	Varistors 175V 20KA SQ 25MM PB FREE 25S Learn More about Littelfuse smov varistor	Datasheet	575In Stock	4,99 € 3,52 € 3,18 € 3,00 € View 2,93 € 2,75 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	175 VAC	225 VDC	243 V	450 V	25 mm	20 kA	250 J	1.9 nF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 20MM TMOV20RP575E Littelfuse 1: 1,96 € 1.065In Stock	Mfr. Part No. TMOV20RP575E Mouser Part No 576-TMOV20RP575E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 20MM Learn More about Littelfuse tmov varistors	Datasheet	1.065In Stock	1,96 € 1,46 € 1,34 € 1,18 € View 1,10 € 1,07 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	575 VAC			1.568 kV	20 mm	10 kA		275 pF	- 55 C	+ 85 C	Bulk
Varistors 275V 20KA SQ 25MM PB FREE 25S TMOV25SP275M Littelfuse 1: 4,84 € 1.012In Stock	Mfr. Part No. TMOV25SP275M Mouser Part No 576-TMOV25SP275M	Littelfuse	Varistors 275V 20KA SQ 25MM PB FREE 25S Learn More about Littelfuse smov varistor	Datasheet	1.012In Stock	4,84 € 3,65 € 3,30 € 3,12 € 2,83 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	275 VAC	350 VDC	387 V	700 V	25 mm	20 kA	350 J	1.25 nF	- 55 C	+ 85 C	Bulk
Varistors 625V 20KA SQ 25MM PB FREE 25S TMOV25SP625M Littelfuse 1: 6,00 € 720In Stock	Mfr. Part No. TMOV25SP625M Mouser Part No 576-TMOV25SP625M	Littelfuse	Varistors 625V 20KA SQ 25MM PB FREE 25S Learn More about Littelfuse smov varistor	Datasheet	720In Stock	6,00 € 4,73 € 4,43 € 3,89 € View 3,81 € 3,71 € 3,48 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	625 VAC	825 VDC	1.1 kV	1.625 kV	25 mm	20 kA	600 J	550 pF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 14MM TMOV14RP140E Littelfuse 1: 1,58 € 1.671In Stock	Mfr. Part No. TMOV14RP140E Mouser Part No 576-TMOV14RP140E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 14MM Learn More about Littelfuse tmov varistors	Datasheet	1.671In Stock	1,58 € 1,17 € 1,07 € 0,955 € View 0,903 € 0,856 € 0,842 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	140 VAC	180 VDC	242 V	360 V	14 mm	6 kA	55 J	900 pF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 14MM TMOV14RP200EL2T7 Littelfuse 1: 1,89 € 1.327In Stock	Mfr. Part No. TMOV14RP200EL2T7 Mouser Part No 576-TMOV14RP200EL2T7	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 14MM Learn More about Littelfuse tmov varistors	Datasheet	1.327In Stock	Cut Tape 1,89 € 1,40 € 1,28 € 1,14 € Reel 0,877 € View 1,08 € 0,857 €	Min.: 1 Mult.: 1 : 500	TMOV	MOVs	PCB Mount	Radial	200 VAC	312.5 VDC	345 V	520 V	14 mm	6 kA	75 J	630 pF	- 55 C	+ 85 C	Reel, Cut Tape
Varistors THERMALLY PROTECTED VARISTOR 14MM TMOV14RP250E Littelfuse 1: 1,45 € 4.772In Stock	Mfr. Part No. TMOV14RP250E Mouser Part No 576-TMOV14RP250E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 14MM Learn More about Littelfuse tmov varistors	Datasheet	4.772In Stock	1,45 € 1,17 € 1,07 € 0,955 € View 0,903 € 0,856 € 0,842 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	250 VAC	320 VDC	429 V	650 V	14 mm	6 kA	100 J	500 pF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 20MM TMOV20RP300EL2T7 Littelfuse 1: 1,41 € 1.194In Stock	Mfr. Part No. TMOV20RP300EL2T7 Mouser Part No 576-TMOV20RP300EL2T7	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 20MM Learn More about Littelfuse tmov varistors	Datasheet	1.194In Stock	Cut Tape 1,41 € 1,16 € 1,10 € 1,03 € Reel 0,995 €	Min.: 1 Mult.: 1 : 300	TMOV	MOVs	PCB Mount	Radial	300 VAC	385 VDC	517 V	775 V	20 mm	10 kA	250 J	800 pF	- 55 C	+ 85 C	Reel, Cut Tape
Varistors 300V 20KA SQ 25MM PB FREE 25S TMOV25SP300M Littelfuse 1: 4,06 € 645In Stock	Mfr. Part No. TMOV25SP300M Mouser Part No 576-TMOV25SP300M	Littelfuse	Varistors 300V 20KA SQ 25MM PB FREE 25S Learn More about Littelfuse smov varistor	Datasheet	645In Stock	4,06 € 3,01 € 2,98 € 2,75 € View 2,60 € 2,57 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	300 VAC	385 VDC	517 V	765 V	25 mm	20 kA	370 J	1.15 nF	- 55 C	+ 85 C	Bulk
Varistors 250V 20KA SQ 25MM PB FREE 25S TMOV25SP250M Littelfuse 1: 4,29 € 740In Stock	Mfr. Part No. TMOV25SP250M Mouser Part No 576-TMOV25SP250M	Littelfuse	Varistors 250V 20KA SQ 25MM PB FREE 25S Learn More about Littelfuse smov varistor	Datasheet	740In Stock	4,29 € 3,04 € 3,03 € 2,75 € View 2,60 € 2,57 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	250 VAC	320 VDC	429 V	640 V	25 mm	20 kA	330 J	1.4 nF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 34MM TMOV34S151MP Littelfuse 1: 18,09 € 165In Stock	Mfr. Part No. TMOV34S151MP Mouser Part No 576-TMOV34S151MP	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 34MM Learn More about Littelfuse tmov varistors	Datasheet	165In Stock	18,09 € 14,52 € 12,96 € 12,52 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	150 VAC	200 VDC	264 V	405 V	34 mm	40 kA	360 J	8 nF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 20MM TMOV20RP510E Littelfuse 1: 1,96 € 3.124In Stock	Mfr. Part No. TMOV20RP510E Mouser Part No 576-TMOV20RP510E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 20MM Learn More about Littelfuse tmov varistors	Datasheet	3.124In Stock	1,96 € 1,46 € 1,34 € 1,15 € View 1,10 € 1,08 € 1,07 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	510 VAC	902 VDC	902 V	1.355 kV	20 mm	10 kA	325 J	350 pF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 20MM TMOV20RP200E Littelfuse 1: 1,81 € 768In Stock	Mfr. Part No. TMOV20RP200E Mouser Part No 576-TMOV20RP200E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 20MM Learn More about Littelfuse tmov varistors	Datasheet	768In Stock	1,81 € 1,35 € 1,23 € 1,10 € View 1,09 € 0,979 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	200 VAC	344 VDC	344 V	530 V	20 mm	10 kA	154 J	1.25 nF	- 55 C	+ 85 C	Bulk
Varistors 230V 20KA SQ 25MM PB FREE 25S TMOV25SP230M Littelfuse 1: 5,54 € 675In Stock	Mfr. Part No. TMOV25SP230M Mouser Part No 576-TMOV25SP230M	Littelfuse	Varistors 230V 20KA SQ 25MM PB FREE 25S Learn More about Littelfuse smov varistor	Datasheet	675In Stock	5,54 € 4,76 € 4,50 € 3,89 € View 3,69 € 3,04 €	Min.: 1 Mult.: 1	TMOV	Varistors	PCB Mount	Radial	230 VAC	300 VDC	324 VDC to 396 VDC	585 V		20 kA	300 J	1.5 nF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 20MM TMOV20RP140E Littelfuse 1: 1,81 € 583In Stock	Mfr. Part No. TMOV20RP140E Mouser Part No 576-TMOV20RP140E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 20MM Learn More about Littelfuse tmov varistors	Datasheet	583In Stock	1,81 € 1,35 € 1,23 € 1,10 € View 1,01 € 0,979 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	140 VAC	180 VDC	242 V	360 V	20 mm	10 kA	110 J	1.75 nF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 14MM TMOV14RP150E Littelfuse 1: 1,58 € 2.552In Stock 3.000Expected 12/28/2026	Mfr. Part No. TMOV14RP150E Mouser Part No 576-TMOV14RP150E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 14MM Learn More about Littelfuse tmov varistors	Datasheet	2.552In Stock 3.000Expected 12/28/2026	1,58 € 1,17 € 1,07 € 0,955 € 0,929 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	150 VAC	264 VDC	264 V	395 V	14 mm	6 kA	60 J	800 pF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 14MM TMOV14RP275E Littelfuse 1: 1,68 € 2.873In Stock 2.000Expected 11/2/2026	Mfr. Part No. TMOV14RP275E Mouser Part No 576-TMOV14RP275E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 14MM Learn More about Littelfuse tmov varistors	Datasheet	2.873In Stock 2.000Expected 11/2/2026	1,68 € 1,25 € 1,14 € 1,01 € View 0,955 € 0,929 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	275 VAC	350 VDC	473 V	710 V	14 mm	6 kA	110 J	450 pF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 14MM TMOV14RP275EL2T7 Littelfuse 1: 1,89 € 2.328In Stock	Mfr. Part No. TMOV14RP275EL2T7 Mouser Part No 576-TMOV14RP275EL2T7	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 14MM Learn More about Littelfuse tmov varistors	Datasheet	2.328In Stock	Cut Tape 1,89 € 1,40 € 1,28 € 1,14 € Reel 1,02 € View 1,02 € 0,946 €	Min.: 1 Mult.: 1 : 400	TMOV	MOVs	PCB Mount	Radial	275 VAC	430 VDC	473 V	710 V	14 mm	6 kA	110 J	450 pF	- 55 C	+ 85 C	Reel, Cut Tape
Varistors THERMALLY PROTECTED VARISTOR 14MM TMOV14RP300E Littelfuse 1: 1,58 € 2.730In Stock 13.500Expected 12/7/2026	Mfr. Part No. TMOV14RP300E Mouser Part No 576-TMOV14RP300E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 14MM Learn More about Littelfuse tmov varistors	Datasheet	2.730In Stock 13.500Expected 12/7/2026	1,58 € 1,17 € 1,07 € 0,955 € 0,929 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	300 VAC	517 VDC	517 V	775 V	14 mm	6 kA	125 J	400 pF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 14MM TMOV14RP320E Littelfuse 1: 1,58 € 10.630In Stock 10.000On Order	Mfr. Part No. TMOV14RP320E Mouser Part No 576-TMOV14RP320E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 14MM Learn More about Littelfuse tmov varistors	Datasheet	10.630In Stock 10.000On Order On Order Ship Dates Mfr. No: TMOV14RP320E Stock: 10.630 Can Dispatch Immediately On Order: 7.500 Expected 10/27/2026 2.500 Expected 1/28/2027 Factory Lead Time: 16 Weeks	1,58 € 1,17 € 1,07 € 0,955 € 0,929 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	320 VAC	420 VDC	561 V	840 V	14 mm	6 kA	136 J	380 pF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 14MM TMOV14RP420E Littelfuse 1: 1,73 € 1.373In Stock 6.000Expected 10/6/2026	Mfr. Part No. TMOV14RP420E Mouser Part No 576-TMOV14RP420E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 14MM Learn More about Littelfuse tmov varistors	Datasheet	1.373In Stock 6.000Expected 10/6/2026	1,73 € 1,28 € 1,17 € 1,04 € View 0,989 € 0,963 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	420 VAC	560 VDC	748 V	1.12 kV	14 mm	6 kA	160 J	300 pF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 20MM TMOV20RP115E Littelfuse 1: 2,17 € 1.389In Stock	Mfr. Part No. TMOV20RP115E Mouser Part No 576-TMOV20RP115E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 20MM Learn More about Littelfuse tmov varistors	Datasheet	1.389In Stock	2,17 € 1,62 € 1,48 € 1,32 € View 1,21 € 1,17 € 1,10 € 1,08 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	125 VAC	150 VDC	198 V	300 V	20 mm	10 kA	52 J	2.4 nF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 20MM TMOV20RP150E Littelfuse 1: 1,81 € 1.671In Stock 6.400On Order	Mfr. Part No. TMOV20RP150E Mouser Part No 576-TMOV20RP150E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 20MM Learn More about Littelfuse tmov varistors	Datasheet	1.671In Stock 6.400On Order On Order Ship Dates Mfr. No: TMOV20RP150E Stock: 1.671 Can Dispatch Immediately On Order: 1.600 Expected 12/8/2026 4.800 Expected 12/30/2026 Factory Lead Time: 16 Weeks	1,81 € 1,35 € 1,23 € 1,21 € View 1,17 € 1,10 € 1,08 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	150 VAC	200 VDC	264 V	395 V	20 mm	10 kA	120 J	1.6 nF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 20MM TMOV20RP275E Littelfuse 1: 1,92 € 2.573In Stock 2.100Expected 10/27/2026	Mfr. Part No. TMOV20RP275E Mouser Part No 576-TMOV20RP275E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 20MM Learn More about Littelfuse tmov varistors	Datasheet	2.573In Stock 2.100Expected 10/27/2026	1,92 € 1,43 € 1,31 € 1,17 € 1,11 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	275 VAC	350 VDC	473 V	710 V	20 mm	10 kA	190 J	900 pF	- 55 C	+ 85 C	Bulk
Varistors THERMALLY PROTECTED VARISTOR 20MM TMOV20RP300E Littelfuse 1: 1,81 € 1.947In Stock	Mfr. Part No. TMOV20RP300E Mouser Part No 576-TMOV20RP300E	Littelfuse	Varistors THERMALLY PROTECTED VARISTOR 20MM Learn More about Littelfuse tmov varistors	Datasheet	1.947In Stock	1,81 € 1,35 € 1,23 € 1,10 € 1,08 €	Min.: 1 Mult.: 1	TMOV	MOVs	PCB Mount	Radial	300 VAC	385 VDC	517 V	775 V	20 mm	10 kA	250 J	800 pF	- 55 C	+ 85 C	Bulk