
Allicdata Part #: | VAR-18085218M3P-XK-ND |
Manufacturer Part#: |
VAR-18085218M3P-XK |
Price: | $ 0.34 |
Product Category: | Circuit Protection |
Manufacturer: | TDK Corporation |
Short Description: | VARISTOR 21.8V RING |
More Detail: | 21.8V Varistor Chassis Mount Ring, Surface Elect... |
DataSheet: | ![]() |
Quantity: | 45 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
1 +: | $ 0.30240 |
10 +: | $ 0.25200 |
25 +: | $ 0.22050 |
Series: | VAR-18 |
Packaging: | Bulk |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Varistor Voltage (Min): | 17.6V |
Varistor Voltage (Typ): | 21.8V |
Varistor Voltage (Max): | 26V |
Energy: | -- |
Capacitance @ Frequency: | 100000pF @ 1kHz |
Operating Temperature: | -25°C ~ 85°C (TA) |
Mounting Type: | Chassis Mount |
Package / Case: | Ring, Surface Electrodes |
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The VAR-18085218M3P-XK is one of the many varieties of transient voltage suppressors (TVSs) available in the market. TVSs are manufactured to protect against high-voltage transients - sudden increases in voltage that can be caused by switching circuits, electrostatic discharge, lightning strikes, and more. The VAR-18085218M3P-XK is specifically a varistor, also known as a metal-oxide varistor (MOV). MOVs are used to absorb excess energy and protect sensitive electrical components from damage.
MOVs work by dissipating the unwanted energy in the form of heat. They do this by increasing their resistance when exposed to high voltage. When the voltage drops, the resistance returns to its original state. Another important function of MOVs is to protect against overvoltage by allowing only a certain amount of current to pass through the device. This allows the MOV to protect against surges that exceed its rated value.
The VAR-18085218M3P-XK is a Four-Terminal, 1808 size MOV with a surge current rating of 18A. It is voltage-rated from 12 to 18 volts, and has a maximum working voltage of 10V. Its clamping voltage is 41V with an allowable energy of 243 mJ. It is also made of a zinc-oxide-on-plastic substrate, making it suitable for a wide range of applications.
The applications of the VAR-18085218M3P-XK include power supplies, automotive systems, communication networks, electrical and electronic systems, and home appliances. It can also be used in both AC and DC circuits, making it a versatile device. It is ideal for applications where surge protection is required, such as computers, laptops, mobile phones, and other gadgets.
In summary, the VAR-18085218M3P-XK is a transient voltage suppressor, made of a metal-oxide varistor, or MOV. It works by increasing resistance when exposed to a high voltage, thereby dissipating the energy as heat and protecting the electrical components from overvoltage. The VAR-18085218M3P-XK has a wide range of applications, including power supplies, automotive systems, communication networks, electrical and electronic systems, and home appliances.
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