Littelfuse 031801.8VXP Glass Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 031801.8VXP is a 1.8 A, 250 V AC/DC fast-blow glass cartridge fuse designed for through-hole mounting in 3AB/3AG package format. This component is classified as Active product status and is widely used in circuit protection applications requiring fast response characteristics. Equivalent and substitute parts are identified when identical electrical ratings, mechanical dimensions, and performance characteristics are maintained across different manufacturers.

Substiute Parts

031801.8VXP

Littelfuse Inc.In Stock: 947031801.8VXP Datasheet

Current PartRFQ

AGC-V-1-8/10-R

Eaton - Electronics DivisionIn Stock: 882AGC-V-1-8/10-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Littelfuse 031801.8VXP is permissible when the following critical parameters are maintained:

• Current Rating: 1.8 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (minimum requirement)

The Eaton AGC-V-1-8/10-R meets all substitution criteria and is classified as a manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the Littelfuse 031801.8VXP and Eaton AGC-V-1-8/10-R are Active product status components with full RoHS compliance. The Littelfuse part carries CE, CSA, PSE, and UL approvals with a breaking capacity of 100 A at rated voltage. The Eaton substitute maintains identical electrical specifications and operating temperature range, ensuring functional equivalence in circuit protection applications. Dimensional variations between the two parts (diameter and length) remain within acceptable tolerances for standard 3AB/3AG fuse holders.

Frequently Asked Questions (FAQ)

Q: Can the Eaton AGC-V-1-8/10-R be used as a direct replacement for the Littelfuse 031801.8VXP?

A: Yes. Both parts share identical current rating (1.8 A), voltage rating (250 V AC), fuse type (cartridge glass), response time (fast blow), package format (3AB/3AG), and operating temperature range (-55°C ~ 125°C). The parts are mechanically and electrically interchangeable.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist. The Littelfuse part measures 0.275" diameter × 1.288" length, while the Eaton part measures 0.266" diameter × 1.292" length. Both conform to 3AB/3AG specifications and fit standard fuse holders designed for this package format.

Q: What compliance certifications apply to both parts?

A: The Littelfuse 031801.8VXP holds CE, CSA, PSE, and UL approvals. The Eaton AGC-V-1-8/10-R maintains RoHS compliance. Both parts are REACH unaffected and classified under ECCN EAR99.

Q: Is the DC cold resistance specification critical for substitution?

A: The Littelfuse part specifies 0.0825 Ohms DC cold resistance. This parameter is not provided for the Eaton substitute. Both parts maintain identical electrical performance characteristics for circuit protection applications within the specified operating parameters.