TMOV Thermal Protection Metal Oxide Varistor 20D 20MM with Epoxy Resin Coating and Over-Temperature Trip Function
Product Details:
| Place of Origin: | China |
| Brand Name: | TIAN RUI |
| Certification: | ROHS |
| Model Number: | TMOV 20D Series |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1000PCS |
|---|---|
| Price: | Negotiable |
| Packaging Details: | Bulk, 50pcs or 100pcs/bag |
| Delivery Time: | 5-7 days |
| Payment Terms: | D/P,T/T,Paypal,Western Union |
| Supply Ability: | 1000000PCS/Month |
|
Detail Information |
|||
| 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℃ | ||
| Highlight: | 20D 20MM TMOV Metal Oxide Varistor,Epoxy Resin Coating Thermal Protection Varistor,Over-Temperature Trip Function MOV |
||
Product Description
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







