Littelfuse 0322012.VXP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0322012.VXP is a 12A ceramic cartridge fuse rated for 65V AC/DC operation. This fast-blow fuse is designed for applications requiring reliable overcurrent protection in low-voltage circuits. The part is actively manufactured and maintains full compliance with CE and UL approval standards. Substitute parts may be required due to inventory availability, supply chain constraints, or specific packaging preferences while maintaining identical electrical and mechanical performance.

Substiute Parts

0322012.VXP

Littelfuse Inc.In Stock: 7870322012.VXP Datasheet

Current PartRFQ

0322012.HXP

Littelfuse Inc.In Stock: 13410322012.HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Littelfuse 0322012.HXP qualifies as a parametric equivalent to the 0322012.VXP based on identical electrical and mechanical specifications. Both parts share the same current rating (12A), voltage ratings (65V AC/DC), fuse type (ceramic cartridge), response characteristic (fast blow), package dimensions (3AB, 3AG, 1/4" x 1-1/4"), breaking capacity ratings, melting I²t value, operating temperature range, and regulatory compliance status. The substitution is valid across all specified parameters without derating or performance compromise.

Parameter Comparison

Engineering Selection Recommendations

Both the 0322012.VXP and 0322012.HXP are active production parts manufactured by Littelfuse Inc. with identical regulatory compliance certifications (CE and UL approval). Selection between these parts is based on availability and inventory status rather than technical performance differentiation. The 0322012.HXP currently maintains higher inventory levels (1258 pcs vs. 692 pcs), making it a viable alternative when supply constraints affect the primary part number. Both parts maintain full ROHS3 compliance and REACH unaffected status, ensuring compatibility with current environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can the 0322012.HXP be used as a direct replacement for the 0322012.VXP in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including current rating, voltage ratings, breaking capacity, response time, and package dimensions. No circuit modifications or holder changes are required.

Q: Are there any differences in the ceramic cartridge construction between these two part numbers?

A: No differences are specified in the provided technical parameters. Both parts are ceramic cartridge fuses with identical melting I²t values and DC cold resistance ratings.

Q: Do both parts require the same holder assembly?

A: Yes. Both parts use the 3AB, 3AG holder package specification with identical 1/4" x 1-1/4" (6.35mm x 31.75mm) dimensions.

Q: What is the significance of the .VXP and .HXP suffixes?

A: The suffixes indicate different manufacturing or packaging variants within the Littelfuse 322 series. The electrical and mechanical specifications remain identical between variants.

Q: Are both parts suitable for -55°C to 125°C operating environments?

A: Yes. Both parts maintain the same operating temperature range of -55°C to 125°C without performance degradation.

Q: Which part should be selected for new designs?

A: Either part is acceptable for new designs. Selection should be based on current inventory availability and supply chain lead times, as both parts are active production items with identical specifications.