Littelfuse 0332001.VXP Ceramic Fuse Cartridge: Equivalent & Substitute Parts

Part Overview

The Littelfuse 0332001.VXP is a 1 A, 250 V AC / 125 V DC ceramic fuse cartridge designed for fast-blow applications in 3AB, 3AG holder configurations. This part operates across -55°C to 125°C and meets CE, cULus, and PSE certifications. The 0332001.VXP is classified as obsolete, making identification of active equivalent parts essential for ongoing procurement and system maintenance. Substitute parts maintain identical electrical ratings and mechanical dimensions while offering improved availability and updated certifications.

Substiute Parts

0332001.VXP

Littelfuse Inc.In Stock: 9520332001.VXP Datasheet

Current PartRFQ

0314001.VXP

Littelfuse Inc.In Stock: 9110314001.VXP Datasheet

MFR RecommendedRFQ

0314001.HXP

Littelfuse Inc.In Stock: 15090314001.HXP Datasheet

Parametric EquivalentRFQ

0314001.MXP

Littelfuse Inc.In Stock: 19970314001.MXP Datasheet

Parametric EquivalentRFQ

0332001.HXP

Littelfuse Inc.In Stock: 8040332001.HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 0332001.VXP is determined by strict equivalence across the following parameters:

• Current Rating: 1 A (exact match required)
• Voltage Rating AC: 250 V (exact match required)
• Voltage Rating DC: 125 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)

All substitute parts listed below meet these criteria. Differences in melting I²t, DC cold resistance, breaking capacity specifications, and approval agencies do not preclude substitution but reflect manufacturing series variations and updated certifications.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the obsolete 0332001.VXP, the following active alternatives are recommended based on product status and certification coverage:

Primary Recommendation: 0314001.VXP or 0314001.HXP

Both parts are active products from the Littelfuse 314 series with expanded certification coverage (CE, CSA, PSE, UL). These parts provide identical electrical and mechanical specifications to the main part while offering improved availability and broader regulatory approval. The 0314001.VXP is supplied in bulk packaging, while 0314001.HXP offers the same specifications with equivalent inventory availability.

Secondary Recommendation: 0314001.MXP

This active product variant maintains all critical electrical and mechanical parameters with the highest inventory level (1953 pcs). It carries the same expanded certifications as other 314 series parts.

Alternative: 0332001.HXP

This part maintains the original 332 series designation and identical melting I²t and DC cold resistance characteristics. However, it remains classified as obsolete with lower inventory availability (736 pcs) compared to 314 series alternatives. Selection of this part should be limited to applications with specific legacy system requirements.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 0332001.VXP with 0314001.VXP in my circuit?

A: Yes. Both parts share identical current rating (1 A), voltage ratings (250 V AC / 125 V DC), response time (fast blow), and mechanical dimensions (3AB, 3AG, 1/4" x 1-1/4"). They are mechanically and electrically interchangeable in any holder designed for these specifications.

Q: What is the difference between 0314001.VXP, 0314001.HXP, and 0314001.MXP?

A: All three parts are from the Littelfuse 314 series and share identical electrical ratings, response characteristics, and mechanical dimensions. The suffix designations (VXP, HXP, MXP) indicate different manufacturing variants or packaging configurations. All three are active products with equivalent substitution capability.

Q: Why does 0314001.VXP have a higher melting I²t (0.69) compared to 0332001.VXP (0.1)?

A: The melting I²t difference reflects manufacturing series variations between the 314 and 332 series. Despite this difference, both parts maintain the same 1 A current rating and fast-blow response time, making them functionally equivalent for circuit protection applications. The higher I²t in the 314 series does not affect substitution compatibility.

Q: Are there any certification differences I should consider?

A: The 314 series parts (0314001.VXP, 0314001.HXP, 0314001.MXP) carry expanded certifications including CSA and UL in addition to CE and PSE. The original 0332001.VXP carries CE, cULus, and PSE certifications. For applications requiring specific regulatory compliance, verify that the selected substitute meets your system's certification requirements.

Q: What is the difference in DC cold resistance between these parts?

A: The 314 series parts exhibit 0.189 Ohms DC cold resistance, while the 332 series parts show 0.0927 Ohms. This difference reflects manufacturing variations but does not affect the fuse's protective function or substitution compatibility at the specified 1 A rating.

Q: Should I prioritize inventory availability when selecting a substitute?

A: Inventory levels are provided for reference. Selection should prioritize product status (active vs. obsolete) and certification requirements first. Among active alternatives, 0314001.MXP offers the highest inventory (1953 pcs), followed by 0314001.HXP (1419 pcs) and 0314001.VXP (900 pcs).