Littelfuse 0332006.MXP Ceramic Fuse Cartridge Equivalent & Substitute Parts

Part Overview

The Littelfuse 0332006.MXP is a 6 A ceramic fuse cartridge rated for 250 V AC and 125 V DC operation. This component is classified as obsolete, which necessitates identification of active equivalent alternatives for continued system support and procurement. The part requires a compatible holder (3AB, 3AG format) and operates with fast-blow response characteristics across the temperature range of -55°C to 125°C.

Substiute Parts

0332006.MXP

Littelfuse Inc.In Stock: 8590332006.MXP Datasheet

Current PartRFQ

0314006.MXP

Littelfuse Inc.In Stock: 10030314006.MXP Datasheet

MFR RecommendedRFQ

0314006.HXP

Littelfuse Inc.In Stock: 11290314006.HXP Datasheet

Parametric EquivalentRFQ

0314006.VXP

Littelfuse Inc.In Stock: 12960314006.VXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 0332006.MXP is determined by strict equivalence across the following electrical and mechanical parameters:

• Current Rating: 6 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 and are classified as active products from Littelfuse Inc., Series 314. The substitutes provide enhanced breaking capacity specifications compared to the obsolete 0332006.MXP (Series 332).

Parameter Comparison

Engineering Selection Recommendations

The three substitute parts—0314006.MXP, 0314006.HXP, and 0314006.VXP—are all active products from Littelfuse Series 314 and provide direct electrical and mechanical equivalence to the obsolete 0332006.MXP. Selection among these three substitutes should be based on approval agency requirements for the end application:

• 0314006.MXP (Manufacturer Recommended): Approved by CE, CSA, K-MARK, PSE, and UL. This part is the primary recommendation for applications requiring CSA certification.

• 0314006.HXP (Parametric Equivalent): Approved by CE, CSA, K-MARK, PSE, and UL. Functionally identical to 0314006.MXP with equivalent certifications.

• 0314006.VXP (Parametric Equivalent): Approved by CE, CSA, KC, PSE, and UL. Suitable for applications requiring KC (Korea) certification in addition to other regional approvals.

All three substitutes demonstrate improved breaking capacity (750A AC, 10kA DC) compared to the original part (100A), providing enhanced protection margins in circuit applications. The Series 314 design maintains full compatibility with existing 3AB and 3AG holder installations.

Frequently Asked Questions (FAQ)

Q: Can the 0314006 series parts directly replace the 0332006.MXP in existing installations?

A: Yes. The 0314006 series parts are mechanically and electrically equivalent. They use the same 3AB/3AG holder format and maintain identical dimensional specifications (0.250" Dia x 1.250" L). No holder modifications are required.

Q: What is the difference between 0314006.MXP, 0314006.HXP, and 0314006.VXP?

A: These three parts are parametrically equivalent and differ only in approval agency certifications. 0314006.MXP carries CSA approval, 0314006.HXP carries CSA and K-MARK approvals, and 0314006.VXP carries KC approval. Selection depends on regional compliance requirements for your application.

Q: Why do the substitute parts have higher melting I²t values (45 vs. 8.208)?

A: The Series 314 design incorporates improved thermal characteristics and breaking capacity specifications compared to the obsolete Series 332. The higher I²t value reflects enhanced performance margins while maintaining the same 6 A current rating and fast-blow response time.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts (0314006.MXP, 0314006.HXP, and 0314006.VXP) are RoHS3 compliant with MSL rating of 1 (Unlimited), matching the compliance profile of the original 0332006.MXP.

Q: What is the impact of the different DC cold resistance values?

A: The substitute parts exhibit slightly higher DC cold resistance (0.024 Ohms vs. 0.0117 Ohms). This difference is within normal manufacturing tolerances for ceramic fuse cartridges and does not affect circuit compatibility or protection characteristics in standard applications.