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Littelfuse 03420012X 342 Series Fuseholder

The Littelfuse 342 Series fuseholders are designed for 3AG fuses and provide a secure and reliable mounting solution for various industrial applications. These fuseholders are recognized under the Components Program of Underwriters Laboratories and certified by CSA, ensuring compliance with industry standards. They feature a bayonet style knob for easy operation and are available with different terminal options including solder, 3/16” Quick-Connect, and 1/4” Quick-Connect. The robust thermoplastic construction and copper/copper alloy terminals ensure durability and efficient electrical connection. Suitable for applications requiring a panel mount fuseholder with a maximum voltage of 250 volts and a current rating of 20 amperes.

Authorized Distributors
Source:Newark
Part No:03420012X
Stock:51
Inv Date:05-28-2026
Price: Unit price: $12.25
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Source:DigiKey
Part No:03420012X
Stock:0
Inv Date:05-28-2026
Price: Unit price: $12.97
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Part No:03420012X
Stock:0
Inv Date:05-29-2026
Price: Unit price: $12.97
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Part No:03420012X
Stock:0
Inv Date:05-28-2026
Price: Unit price: $9.11
Buy/RFQ:
Part No:03420012X
Stock:0
Inv Date:05-28-2026
Price: Unit price: $6.91
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Littelfuse 03420012X 342 Series Fuseholder Specifications:

  • Rated Current: 20 amperes
  • Voltage Rating: Up to 250 volts
  • Dielectric Strength: 2400 volts minimum
  • Terminal Material: Copper & copper alloy, Tin plated (except Quick-Connect)
  • Ambient Temperature Range: -40°C to +85°C
  • Mounting Torque: 15 lb.-in
  • Panel Thickness: Maximum .187"
  • Molded Part Material: Black thermoplastic (UL 94V0)
  • Knob Type: Bayoent style with lettering
  • Fuse Type: 3AG

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Frequently Asked Questions

Where can I buy Littelfuse 03420012X?

You can click on the BUY or RFQ button to purchase 03420012X from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part 03420012X?

You can download the 03420012X datasheet or visit the Littelfuse website for support.

Who is the manufacturer of 03420012X?

Littelfuse

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