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.

Results: 211
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model 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
Littelfuse Varistors 320V 20kASQ 25MM PB FREE 25S 549In Stock
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 320 VAC 420 VDC 561 V 825 V 25 mm 20 kA 490 J 1.08 nF - 55 C + 85 C Bulk
Littelfuse Varistors 320V 20KA SQ 25MM 25S ROHS/PB FREE 785In Stock
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 320 VAC 420 VDC 561 V 825 V 25 mm 20 kA 390 J 1.08 nF - 55 C + 85 C Bulk
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 14MM 532In Stock
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 130 VAC 170 VDC 225.5 V 340 V 14 mm 6 kA 50 J 1 nF - 55 C + 85 C Bulk
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 14MM 2,873In Stock
2,000Expected 02/11/2026
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
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 14MM 1,211In Stock
2,400On Order
Min.: 1
Mult.: 1
: 400

TMOV MOVs PCB Mount Radial 300 VAC 470 VDC 517 V 775 V 14 mm 6 kA 125 J 400 pF - 55 C + 85 C Reel, Cut Tape
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 14MM 1,060In Stock
Min.: 1
Mult.: 1
: 400

TMOV MOVs PCB Mount Radial 320 VAC 510 VDC 561 V 840 V 14 mm 6 kA 136 J 380 pF - 55 C + 85 C Reel, Cut Tape
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 14MM 454In Stock
1,500Expected 07/12/2026
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 385 VAC 505 VDC 682 V 1.025 kV 14 mm 6 kA 150 J 360 pF - 55 C + 85 C Bulk
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 14MM 785In Stock
Min.: 1
Mult.: 1
: 400

TMOV MOVs PCB Mount Radial 385 VAC 620 VDC 682 V 1.025 kV 14 mm 6 kA 150 J 360 pF - 55 C + 85 C Reel, Cut Tape
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 14MM 1,090In Stock
1,500Expected 01/10/2026
Min.: 1
Mult.: 1
TMOV MOVs PCB Mount Radial 510 VAC 670 VDC 902 V 1.355 kV 14 mm 6 kA 185 J 200 pF - 55 C + 85 C Bulk
Littelfuse Varistors Thermally Protected 14MM 344In Stock
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 550 VAC 715 VDC 1.001 kV 1.355 kV 14 mm 6 kA 190 J 180 pF - 55 C + 85 C Bulk
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 20MM
32In Stock
1,200Expected 04/11/2026
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 130 VAC 170 VDC 225.5 V 340 V 20 mm 10 kA 100 J 1.9 nF - 55 C + 85 C Bulk
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 20MM 553In Stock
1,200Expected 02/02/2027
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 175 VAC 225 VDC 297 V 455 V 20 mm 10 kA 135 J 1.4 nF - 55 C + 85 C Bulk
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 20MM 898In Stock
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 230 VAC 360 VDC 396 V 595 V 20 mm 10 kA 160 J 1.1 nF - 55 C + 85 C Bulk
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 20MM 897In Stock
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 250 VAC 320 VDC 429 V 650 V 20 mm 10 kA 170 J 1 nF - 55 C + 85 C Bulk
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 20MM 627In Stock
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 320 VAC 561 VDC 561 V 840 V 20 mm 10 kA 372 J 750 pF - 55 C + 85 C Bulk
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 20MM 996In Stock
Min.: 1
Mult.: 1
: 300

TMOV MOVs PCB Mount Radial 320 VAC 510 VDC 561 V 840 V 20 mm 10 kA 372 J 750 pF - 55 C + 85 C Reel, Cut Tape
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 20MM 74In Stock
2,100Expected 16/02/2027
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 420 VAC 560 VDC 748 V 1.12 kV 20 mm 10 kA 320 J 600 pF - 55 C + 85 C Bulk
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 20MM 685In Stock
1,200Expected 28/12/2026
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 550 VAC 715 VDC 1.001 kV 1.5 kV 20 mm 10 kA 360 J 300 pF - 55 C + 85 C Bulk
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 20MM 5In Stock
1,200Expected 28/12/2026
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 625 VAC 1.1 kVDC 1.1 kV 1.65 kV 20 mm 10 kA 400 J 250 pF - 55 C + 85 C Bulk
Littelfuse Varistors 115V 20KA SQ 25MM PB FREE 25S 116In Stock
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 125 VAC 150 VDC 198 V 295 V 25 mm 20 kA 170 J 3.2 nF - 55 C + 85 C Bulk
Littelfuse Varistors 140V 20KA SQ 25MM PB FREE 25S 28In Stock
800Expected 15/02/2027
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 140 VAC 180 VDC 242 V 355 V 25 mm 20 kA 210 J 2.5 nF - 55 C + 85 C Bulk
Littelfuse Varistors 150V 20KA SQ 25MM 25S ROHS / LEAD FREE 45In Stock
900Expected 09/12/2026
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 150 VAC 200 VDC 216 V 390 V 25 mm 20 kA 220 J 2.3 nF - 55 C + 85 C Bulk
Littelfuse Varistors 275V 20KA SQ 25MM PB FREE 25S 1,012In Stock
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
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 34 MM DISC 1In Stock
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 275 VAC 369 VDC 473 V 730 V 34 mm 40 kA 550 J 4.5 nF - 55 C + 85 C Bulk
Littelfuse Varistors THERMALLY PROTECTED VARISTOR 14MM
1,800On Order
Min.: 1
Mult.: 1

TMOV MOVs PCB Mount Radial 175 VAC 225 VDC 297 V 455 V 14 mm 6 kA 70 J 700 pF - 55 C + 85 C Bulk