What are the key electrical ratings?

It features a varistor voltage of 390V, a maximum AC voltage of 250V, and a clamping voltage of 650V.

What is the pinout of 20D391K?

Use the 20D391K datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about 20D391K pinout to locate pins, power rails, and interface signals before layout.

20D391K Datasheet, Specs, Alternatives & ECAD | COV

AI summary

The COV 20D391K is a 20mm zinc oxide varistor designed for transient voltage surge suppression in electronic circuits.

Best for

Surge protection in power supplies
Industrial equipment protection

Avoid if

Applications exceeding 250V AC continuous operation

Check before use

Peak surge current requirements

Key specifications

Varistor Voltage: 390V
Clamping Voltage: 650V
Energy Rating: 180J

Compliance & Environment

RoHS: Compliant
REACH: -
MSL: -
ECCN: -
HTSUS: -

Application

Power SuppliesIndustrial

Datasheet

908b5f7e5bac2a7c8b6979ed91fdd75e_2304140030_COV-20D391K_C317864.pdf

800 KB

Datasheet AI

CAD Models

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EDA Symbol

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PCB Footprint

Land pattern for PCB layout

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3D Model

STEP file for mechanical design

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KiCad Library

Verified KiCad 8 symbol, footprint, and 3D model

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

It is a 20mm diameter metal oxide varistor (MOV) used for overvoltage protection.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Alternative components

Design and risk insights

Questions & answers

What is the COV 20D391K?+×

What are the key electrical ratings?+×

What is the pinout of 20D391K?+×