| Payment Terms | D/P,T/T,Paypal,Western Union |
| Supply Ability | 1000000PCS/Month |
| Delivery Time | 5-7 days |
| Packaging Details | Bulk, 50pcs or 100pcs/bag |
| Product Name | TMOV Metal Oxide Varistor |
| Epoxy Colour | Blue Green |
| Disk Size | 20D 20MM |
| Coating | Epoxy Resin |
| Lead | Cp/Cu wire |
| Electrode | Silver |
| Disk Body | Zinc Oxide |
| Solder | Sn:96.5%CU 0.5%Ag3.0% |
| Operating Temperature | -40℃ ~ +85℃ |
| Brand Name | TIAN RUI |
| Model Number | TMOV 20D Series |
| Certification | ROHS |
| Place of Origin | China |
View Detail Information
Explore similar products
SMD 0604 0806 1206 1210 1812 2220 Chip Varistor For Power Lines Protection
High Voltage ZOV MOV VDR Varistor 7D431K 7D471K 7D511K 7D561K
Plastic Encapsulated 3225 4032 SMT Surface Mount SMD Chip Zinc Metal Oxide
3Pin TMOV Metal Oxide Varistor
Product Specification
| Payment Terms | D/P,T/T,Paypal,Western Union | Supply Ability | 1000000PCS/Month |
| Delivery Time | 5-7 days | Packaging Details | Bulk, 50pcs or 100pcs/bag |
| Product Name | TMOV Metal Oxide Varistor | Epoxy Colour | Blue Green |
| Disk Size | 20D 20MM | Coating | Epoxy Resin |
| Lead | Cp/Cu wire | Electrode | Silver |
| Disk Body | Zinc Oxide | Solder | Sn:96.5%CU 0.5%Ag3.0% |
| Operating Temperature | -40℃ ~ +85℃ | Brand Name | TIAN RUI |
| Model Number | TMOV 20D Series | Certification | ROHS |
| Place of Origin | China | ||
| High Light | 20D 20MM TMOV Metal Oxide Varistor ,Epoxy Resin Coating Thermal Protection Varistor ,Over-Temperature Trip Function MOV | ||
TMOV Thermal Protection Metal Oxide Varistor 20D 431 511 561 820 101 121 151 181 201 221 241 271 331 361 391 431 471 621 681 751
The TMOV (Temperature-Protected Varistor) is a series of varistors with over-temperature trip (disconnect) function. It incorporates a temperature-sensitive component onto a standard MOV (Metal Oxide Varistor) chip. When the power frequency current continuously increases or the MOV fails, the increased power frequency current or leakage current causes the MOV body temperature to rise to the set operating temperature of the TMOV, at which point the temperature-sensitive component trips. This cuts off the current supply to the MOV, preventing further temperature rise and thus preventing fires caused by MOV failure. It uses standard leads, making it ideal for PCB mounting. TMOV varistors are widely used in computers, switching power supplies, power strips, UPS, telecommunications, networks, railways, and other fields.
Specification of TMOV Thermal Protection Metal Oxide Varistor
| Part Number | Characteristic data TA=+25 ℃ | Rated value T = +85°C | ||||||||
| Varistor voltage | Standard tolerance | Max. clamping voltage (8/20μs) | Typical capacitance (1kHz) | Max. contianuous operating voltage | Max. energy | Surge current (1×8/20μs) | Power | |||
| Vn(V) | Vn(±%) | Vp(V) | Ip(A) | C(pF) | Vrms(V) | Vdc(V) | Wmax (J) | Imax (A) | Pmax (W) | |
| TMOV20-820 | 82 | 10 | 135 | 100 | 8200 | 50 | 65 | 40 | 10000 | 1.0 |
| TMOV20-101 | 100 | 10 | 165 | 100 | 8000 | 60 | 81 | 50 | 10000 | 1.0 |
| TMOV20-121 | 120 | 10 | 200 | 100 | 5500 | 75 | 100 | 60 | 10000 | 1.0 |
| TMOV20-151 | 150 | 10 | 250 | 100 | 4200 | 95 | 125 | 75 | 10000 | 1.0 |
| TMOV20-181 | 180 | 10 | 300 | 100 | 2500 | 115 | 150 | 84 | 10000 | 1.0 |
| TMOV20-201 | 205 | 10 | 340 | 100 | 2300 | 130 | 170 | 100 | 10000 | 1.0 |
| TMOV20-221 | 220 | 10 | 360 | 100 | 2200 | 140 | 180 | 110 | 10000 | 1.0 |
| TMOV20-241 | 240 | 10 | 395 | 100 | 2200 | 150 | 200 | 120 | 10000 | 1.0 |
| TMOV20-271 | 270 | 10 | 455 | 100 | 2100 | 175 | 225 | 135 | 10000 | 1.0 |
| TMOV20-331 | 330 | 10 | 550 | 100 | 1750 | 210 | 275 | 160 | 10000 | 1.0 |
| TMOV20-361 | 360 | 10 | 595 | 100 | 1700 | 230 | 300 | 180 | 10000 | 1.0 |
| TMOV20-391 | 390 | 10 | 650 | 100 | 1400 | 250 | 320 | 195 | 10000 | 1.0 |
| TMOV20-431 | 430 | 10 | 710 | 100 | 1350 | 275 | 350 | 215 | 10000 | 1.0 |
| TMOV20-471 | 470 | 10 | 775 | 100 | 1200 | 300 | 385 | 250 | 10000 | 1.0 |
| TMOV20-511 | 510 | 10 | 845 | 100 | 1050 | 320 | 410 | 273 | 10000 | 1.0 |
| TMOV20-561 | 580 | 10 | 915 | 100 | 850 | 350 | 460 | 273 | 10000 | 1.0 |
| TMOV20-621 | 620 | 10 | 1025 | 100 | 570 | 385 | 505 | 273 | 10000 | 1.0 |
| TMOV20-681 | 680 | 10 | 1120 | 100 | 550 | 420 | 560 | 273 | 10000 | 1.0 |
| TMOV20-751 | 750 | 10 | 1240 | 100 | 530 | 460 | 615 | 300 | 10000 | 1.0 |
Product Show of TMOV Thermal Protection Metal Oxide Varistor
![]()
![]()
![]()
Dimension of TMOV Thermal Protection Metal Oxide Varistor
![]()
Structural Features and Packaging of TMOV Thermal Protection Metal Oxide Varistor
- Resistor Structure: Circular, with leads, featuring an over-temperature release mechanism, encapsulated in epoxy resin;
- Encapsulation Material: Flame-retardant epoxy resin, compliant with UL94-0;
- Electrode Leads: Tinned copper wire;
- Packaging: Bulk
Application of TMOV Thermal Protection Metal Oxide Varistor
Power supplies
Power systems
Line voltage
Telecom systems
White goods / appliances
![]()
![]()
Contact Details:
Andy Wu
Email: andy@tianrui-fuse.com.cn
MP/Whatsapp: +86 13532772961
Wechat: HFeng0805
Skype: andywutechrich
QQ: 969828363
Company Details
Business Type:
Manufacturer
Year Established:
2010
Total Annual:
9000000-9500000
Employee Number:
105~150
Ecer Certification:
Verified Supplier
Dongguan Tianrui Electronics Co., Ltd. was founded in 2010. It covers an area of 5,000 square meters and has a monthly production capacity of 50 million pieces. We are committed to be a comprehensive circuit protection component manufacturer and solution supplier. We are specialized in the design, d... Dongguan Tianrui Electronics Co., Ltd. was founded in 2010. It covers an area of 5,000 square meters and has a monthly production capacity of 50 million pieces. We are committed to be a comprehensive circuit protection component manufacturer and solution supplier. We are specialized in the design, d...
Get in touch with us
Leave a Message, we will call you back quickly!