Specifications
Model Number :
TMOV20-511B
Place of Origin :
CHINA
MOQ :
2000 Pieces
Price :
0.58USD Per Pieces
Payment Terms :
T/T, Western Union
Supply Ability :
10,000,000 Pieces Per Month
Delivery Time :
2 Weeks
Packaging Details :
Bulk,200/bag,800pcs/box,1600pcs/carton.Unit weight:8.5gram
Product Name :
Thermally Protected Metal Oxide Varistor
Termination Style :
Radial
Voltage Rating AC :
320VAC
Voltage Rating DC :
561VDC
Diameter :
20mm
Clamping Voltage :
850V
Peak Surge Current :
10KA
Surge Energy Rating :
184 J
Capacitance :
1050 pF
Operating temperature :
-40~+85C
Description

Street Light SPD 2PIN TMOV Thermally Protected Metal Oxide Varistor 20mm 320VAC 10KA With Thermal Cutoff Built-in

Applications


• SPD Products
• AC Panel Protection Modules
• AC Line Power Supplies
• Surge Protected Strip Connectors
• AC Power Meters
• Relocatable AC Power Taps
• GFCI (Ground Fault Current Interupter)
• UPS (Uninterruptable Power Supply)
• White Goods
• Plug-in Street Light SPD
• AC/DC Power Supplies

Street Light SPD 2PIN TMOV Thermally Protected Metal Oxide Varistor 20mm 320VAC 10KA With Thermal Cutoff Built-in

Description

The TMOV and iTMOV thermally protected varistors represent a new development in integrated circuit protection. Both versions are comprised of radial leaded Metal Oxide Varistors (MOVs) with an integrated thermally activated element designed to open in the event of overheating due to the abnormal overvoltage, limited current, conditions outlined in UL1449. The TMOV and iTMOV varistor’s integrated thermal element, in conjunction with appropriate enclosure design, helps facilitate SPD module compliance to UL1449 for both cord connected and permanently connected applications.

The TMOV and iTMOV varistors offer quick thermal response due to the close proximity of the integrated thermal element to the MOV body. The integrated configuration also offers lower inductance than most discrete solutions resulting in improved clamping performance to fast overvoltage transients.

The iTMOV varistor differs from the TMOV varistor by the inclusion of a third lead for the purpose of indicating that the MOV has been disconnected from the circuit. This lead facilitates connection to monitoring circuitry.
Dimension (mm)
Street Light SPD 2PIN TMOV Thermally Protected Metal Oxide Varistor 20mm 320VAC 10KA With Thermal Cutoff Built-in Street Light SPD 2PIN TMOV Thermally Protected Metal Oxide Varistor 20mm 320VAC 10KA With Thermal Cutoff Built-in

Dmax 25.0

d1 (±0.1)

1.0
H2 max 29.0 d2 (±0.1) 1.0
Tmax 10.7 Lead Wire Tinning copper wire
Lmin 15.0

Comply with

ROHS Directive
W1 (±1.0) 11.5 Coating

Blue insulated epoxy resin

e1 (max) 5.6 Unit weight 8.3g

Electrical Performances

Electrical parameters
Varistor voltage (V1mA) 459V ~ 510 V ~ 561V
Max. continuous operating voltage Vrms: 320 V; VDC: 410V
Rated power 1.0 W
Max. clamping voltage (8/20μs) VC: 850V; IC: 100A
Surge current (1×8/20μs) 10000 A (8/20μs)
Max. energy 184 J (2ms)
Typical capacitance 1050pF (1KHz)
Leakage current ≦10μA (75% of V1mA (DC))
Operating temperature -40℃ ~ +85℃
Storage temperature -40℃ ~ +100℃
Fuse temperature 146℃
Hand soldered temperature / Time 265℃/3s
Package Info
Packing Bulk 200pcs/bag 800pcs/box 1600pcs/carton
Tape&Reel ----pcs/reel ------pcs/box ------pcs/carton
Ammopack ----pcs/bag -------------------- ------pcs/carton

Features

• Designed to facilitate compliance to UL1449 for SPD products

• High peak surge current rating up to 10kA

• Wave solderable

• Standard lead form and spacing option

• -55°C to +85°C operating temp range

• Three-lead version available for indication purposes

Select the Right Varistors for Overvoltage Circuit Protection

Varistors, also called metal-oxide varistors (MOVs), are used to protect sensitive circuits from a variety of overvoltage conditions. Essentially, these voltage-dependent, nonlinear devices have electrical characteristics similar to back-to- back Zener diodes.

Step 1: To find the voltage rating of the MOV, allow for 20% headroom to account for voltage swell and power-supply tolerances: 24 V dc × 1.2 = 28.8 V dc. Given that no varistors have a voltage rating of exactly 28.8 V, check the datasheets for specifications for 31-V dc MOVs.

Street Light SPD 2PIN TMOV Thermally Protected Metal Oxide Varistor 20mm 320VAC 10KA With Thermal Cutoff Built-in

Step 2: To determine which MOV disc size to use, first identify the MOV series that minimally meet the 1000-A surge requirement. Inspecting the table above suggests a 20-mm MOV with a 31-V dc maximum continuous voltage rating (part number V20E25P) as a possible solution to meet the requirements.

Step 3: Use the pulse-rating curves (Fig. 2) in the same datasheet to determine pulse capabilities relative to the 40 pulses at the 1000-A requirement.

Street Light SPD 2PIN TMOV Thermally Protected Metal Oxide Varistor 20mm 320VAC 10KA With Thermal Cutoff Built-in

2. The MOVâ€s datasheet will provide a pulse-rating curve; this example is for a 20-mm MOV.



Step 4: Use the V-I curve (Fig. 3) in the MOV’s datasheet to verify that leak voltage will be less than the 300-V ceiling.
Street Light SPD 2PIN TMOV Thermally Protected Metal Oxide Varistor 20mm 320VAC 10KA With Thermal Cutoff Built-in
3. An MOV datasheet will also feature a voltage-versus-current curve, such as this maximum clamping-voltage curve for the 20-mm device in Fig. 2.
Protecting MOVs Against Thermal Runaway
4. A thermal disconnect can open a circuit, preventing a catastrophic failure of a degraded MOV.

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Street Light SPD 2PIN TMOV Thermally Protected Metal Oxide Varistor 20mm 320VAC 10KA With Thermal Cutoff Built-in

Ask Latest Price
Model Number :
TMOV20-511B
Place of Origin :
CHINA
MOQ :
2000 Pieces
Price :
0.58USD Per Pieces
Payment Terms :
T/T, Western Union
Supply Ability :
10,000,000 Pieces Per Month
Contact Supplier
Street Light SPD 2PIN TMOV Thermally Protected Metal Oxide Varistor 20mm 320VAC 10KA With Thermal Cutoff Built-in
Street Light SPD 2PIN TMOV Thermally Protected Metal Oxide Varistor 20mm 320VAC 10KA With Thermal Cutoff Built-in
Street Light SPD 2PIN TMOV Thermally Protected Metal Oxide Varistor 20mm 320VAC 10KA With Thermal Cutoff Built-in
Street Light SPD 2PIN TMOV Thermally Protected Metal Oxide Varistor 20mm 320VAC 10KA With Thermal Cutoff Built-in

Aolittel Technology Co.,Ltd

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7 Years
guangdong, dongguan
Since 2017
Business Type :
Manufacturer, Exporter
Total Annual :
3,750,000-5,000,000
Employee Number :
400~500
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