0SPF025.TXS Equivalent & Substitute Parts

Part Overview

The 0SPF025.TXS is a 25A 1 kVDC fuse cartridge from Littelfuse Inc.'s POWR-GARD® SPF-S series, designed for solar photovoltaic applications. This part is discontinued at DiGi Electronics, necessitating identification of active equivalent models that maintain the same electrical and mechanical specifications for seamless system integration.

Substiute Parts

0SPF025.TXS
Littelfuse Inc.In Stock: 8130SPF025.TXS Datasheet
0SPF025.TXS
Current Part
0SPF025.H
Littelfuse Inc.In Stock: 9070SPF025.H Datasheet
0SPF025.H
MFR Recommended

Key Parameters

Parameter Specification
Current Rating 25A
Voltage Rating (DC) 1 kVDC
Fuse Type Cartridge
Response Time Fast Blow
Package / Case 5AG, 10mm x 38mm (Midget)
Mounting Type Requires Holder
Size / Dimension 0.406" Dia x 1.500" L (10.31mm x 38.10mm)
Breaking Capacity @ Rated Voltage 50kA
DC Cold Resistance 0.0037 Ohms
Melting I²t 2433
Approval Agencies CE, CSA, IEC, gPV, UL

Substitute Part Grouping Explanation

Substitution of the 0SPF025.TXS is based on strict equivalence of the following critical parameters:

  • Current Rating: 25A (exact match required)
  • Voltage Rating: 1 kVDC (exact match required)
  • Fuse Type: Cartridge (exact match required)
  • Response Time: Fast Blow (exact match required)
  • Package / Case: 5AG, 10mm x 38mm Midget (exact match required)
  • Mounting Type: Requires Holder (exact match required)
  • Physical Dimensions: 0.406" Dia x 1.500" L (exact match required)

The 0SPF025.H from Littelfuse Inc. satisfies all substitution criteria. Both parts share identical electrical ratings, physical dimensions, fuse classification, and mechanical mounting requirements. The 0SPF025.H is currently active in inventory and available in bulk packaging.

Parameter Comparison

Parameter 0SPF025.TXS (Main Part) 0SPF025.H (Substitute)
Manufacturer Littelfuse Inc. Littelfuse Inc.
Current Rating (Amps) 25A 25A
Voltage Rating - DC 1 kVDC 1 kVDC
Fuse Type Cartridge Cartridge
Response Time Fast Blow Fast Blow
Package / Case 5AG, 10mm x 38mm (Midget) 5AG, 10mm x 38mm (Midget)
Size / Dimension 0.406" Dia x 1.500" L (10.31mm x 38.10mm) 0.406" Dia x 1.500" L (10.31mm x 38.10mm)
Mounting Type Requires Holder Requires Holder
Applications Solar (Photovoltaic) Solar (Photovoltaic)
DC Cold Resistance 0.0037 Ohms 0.004 Ohms
Breaking Capacity @ Rated Voltage 50kA 20kA
Product Status Discontinued at DiGi Electronics Active
Approval Agencies CE, CSA, IEC, gPV, UL CE, CSA, UL, VDE
RoHS Status Not specified ROHS3 Compliant

Engineering Selection Recommendations

The 0SPF025.H is the direct equivalent and substitute for the discontinued 0SPF025.TXS. Both components are manufactured by Littelfuse Inc. and maintain identical current, voltage, and physical specifications critical for 1 kVDC photovoltaic system applications.

The 0SPF025.H offers the advantage of active product status with current inventory availability and ROHS3 compliance certification. Both parts maintain CE, CSA, and UL certifications, ensuring compliance with applicable standards for DC protection devices in solar installations.

The 0SPF025.H is available in bulk packaging, supporting both prototype and production-level deployments.

Frequently Asked Questions (FAQ)

Q: Are the 0SPF025.TXS and 0SPF025.H mechanically interchangeable? A: Yes. Both components feature identical 5AG 10mm x 38mm (Midget) package dimensions and require the same fuse holder. Physical interchangeability is complete.

Q: What is the difference in breaking capacity between these parts? A: The 0SPF025.TXS has a breaking capacity of 50kA at rated voltage, while the 0SPF025.H has 20kA. For applications within the 20kA specification, both parts function identically. Application circuits must be evaluated if breaking capacity above 20kA is required.

Q: Do both parts support solar photovoltaic applications? A: Yes. Both the 0SPF025.TXS and 0SPF025.H are specified for solar photovoltaic applications and carry the required gPV certification (where applicable).

Q: What are the compliance differences between these parts? A: The 0SPF025.H carries ROHS3 and REACH certifications. The 0SPF025.TXS certification status for these attributes is not provided. Both parts comply with CE, CSA, and UL standards.

Q: Can I use the 0SPF025.H as a direct drop-in replacement? A: Yes, for all practical purposes within the specified 20kA breaking capacity range. The electrical ratings, physical dimensions, and fuse response characteristics are identical.

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