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03450101HX020 Gray knob accessory for Littelfuse 345 series enclosed fuseholders. Compatible with 3AG and 5x20mm fuses, made of glass-filled thermoplastic with UL94 V-0 rating.
Mfr Part #:

03450101HX020

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Gray knob accessory for Littelfuse 345 series enclosed fuseholders. Compatible with 3AG and 5x20mm fuses, made of glass-filled thermoplastic with UL94 V-0 rating.
Total Stock: 20 pcs

03450101HX020 Available from 1 distributors

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03450101HX020 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Accessory Type
Automotive Grade
For Use With
Industrial Grade
Lead Spacing
Lead Style
Medical Grade
Military Grade
Mounting Type
SVHC Present
Storage Temperature
Tape & Reel
Termination Style

03450101HX020 Description

Short technical summary and product information.

The Littelfuse 03450101HX020 is a gray knob designed for use with the 345 series enclosed fuseholders. It is compatible with both 3AG (1/4" x 1-1/4") and 5x20mm fuse sizes, making it versatile for various circuit protection applications. The knob is constructed from gray glass-filled thermoplastic with a UL94 V-0 flammability rating, ensuring durability and safety.

 

Electrical specifications include an insulation resistance of 10,000 MΩ minimum at 500 VDC, contact resistance less than 0.005 Ω average at 1A, and dielectric strength of 4000 V minimum. The operating temperature range is -40°C to +85°C, suitable for a wide range of environments.

 

The knob features a screwdriver slot and fuse extractor type with a nickel-plated copper alloy insert, and a spring-loaded bayonet style for secure attachment. It is intended for PCB mounting via soldering, with tin-plated brass terminals. This knob is a replacement or accessory part for the 345 series fuseholder, which is designed per IEC 60127-6 standards for shock-safe operation.

03450101HX020 Quick Information

Product Type: Fuseholder Knob
Series: 345
Canonical Name: Littelfuse 03450101HX020 Gray Knob for 345 Series Fuseholder
Subcategory: Fuseholder Accessories

03450101HX020 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

03450101HX020 Features

  • Gray glass-filled thermoplastic knob with UL94 V-0.
  • Compatible with 3AG and 5x20mm fuses.
  • Insulation resistance 10,000 MΩ minimum at 500 VDC.
  • Contact resistance less than 0.005 Ω at 1A.
  • Operating temperature range -40°C to +85°C.

03450101HX020 Applications

  • Replacement knob for 345 series fuseholders.
  • Suitable for PCB-mounted circuit protection assemblies.
  • Used in industrial and commercial equipment requiring shock-safe fuse access.

03450101HX020 FAQs

7 frequently asked questions generated from this part’s specifications.
What fuse sizes is this knob compatible with?

The knob is compatible with 3AG (1/4" x 1-1/4") and 5x20mm fuses.

What material is the knob made of?

Gray glass-filled thermoplastic with UL94 V-0 flammability rating.

What is the operating temperature range?

-40°C to +85°C.

What is the insulation resistance?

10,000 MΩ minimum at 500 VDC.

What is the contact resistance?

Less than 0.005 Ω average at 1A.

What is the dielectric strength?

4000 V minimum.

How is this knob mounted?

It is designed for PCB mounting via soldering.

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