SPXV025.L Equivalent & Substitute Parts

Part Overview

The SPXV025.L is a 25A 1.5 kVDC cartridge fuse from Littelfuse Inc.'s POWR-GARD® SPXV series, designed for solar photovoltaic applications. This part is currently obsolete, making identification of suitable substitute components essential for system maintenance and new installations. The cartridge fuse requires a compatible holder for operation and is certified for CE and UR compliance.

Substiute Parts

SPXV025.L

Littelfuse Inc.In Stock: 1100SPXV025.L Datasheet

Current PartRFQ

SPXV025.LXM

Littelfuse Inc.In Stock: 894SPXV025.LXM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPXV025.L is determined by strict equivalence in the following parameters:

• Current Rating: 25A (exact match required)
• Voltage Rating (DC): 1.5 kVDC (exact match required)
• Fuse Type: Cartridge (exact match required)
• Mounting Type: Requires Holder (exact match required)
• Package / Case: Cartridge, Non-Standard (exact match required)

The SPXV025.LXM meets all substitution criteria as an active product within the same POWR-GARD® SPXV series. Both parts share identical current and voltage ratings, fuse type, mounting configuration, and cartridge package specifications, ensuring mechanical and electrical compatibility within solar photovoltaic systems.

Parameter Comparison

Engineering Selection Recommendations

The SPXV025.LXM is the manufacturer-recommended substitute for the obsolete SPXV025.L. Both components maintain identical electrical ratings (25A, 1.5 kVDC) and mechanical compatibility as cartridge fuses requiring holder mounting. The substitute part is currently in active production status, ensuring availability for ongoing system support and new installations.

The SPXV025.LXM provides enhanced certifications including gPV and UL approval in addition to CE compliance, making it suitable for expanded solar photovoltaic applications. The increased breaking capacity (50kA versus 15kA) and Fast Blow response time specification represent performance enhancements over the original part. Both components maintain RoHS compliance and unlimited moisture sensitivity rating (MSL 1).

Minor dimensional variations exist in the cartridge length (0.406" L versus 0.540" Dia for the main part), though both maintain the 3.333" W specification and non-standard cartridge package classification. Verification of holder compatibility with the substitute part's specific dimensions is necessary prior to installation.

Frequently Asked Questions (FAQ)

Q: Can SPXV025.LXM be used as a direct replacement for SPXV025.L?

A: Yes. Both parts share identical current rating (25A), voltage rating (1.5 kVDC), fuse type (Cartridge), mounting type (Requires Holder), and package classification (Cartridge, Non-Standard). The substitute is the manufacturer-recommended replacement for the obsolete original part.

Q: What are the key differences between these two parts?

A: The SPXV025.LXM is an active product with enhanced certifications (gPV, UL added to CE), higher breaking capacity (50kA versus 15kA), and specified Fast Blow response time. Dimensional variations exist in cartridge length. DC cold resistance and melting I²t values show minor differences within the same product family.

Q: Are there compatibility concerns with existing fuse holders?

A: Both parts require compatible cartridge fuse holders. The dimensional difference in cartridge length (0.406" L versus 0.540" Dia specification) requires confirmation that the existing holder accommodates the substitute part's physical dimensions.

Q: What certifications apply to the substitute part?

A: The SPXV025.LXM carries CE, gPV, and UL approvals, compared to CE and UR for the original part. Both maintain RoHS compliance and are suitable for solar photovoltaic applications.

Q: Is the substitute part currently available?

A: Yes. The SPXV025.LXM is in active production status with documented inventory availability, unlike the obsolete SPXV025.L.