25D27SB Fuse Cartridge - Equivalent & Substitute Parts

Part Overview

The 25D27SB is a 25A 500VAC fuse cartridge manufactured by Altech Corporation. This component is designed for electrical and industrial applications requiring cartridge-style fuse protection with a slow-blow response characteristic. The part requires a compatible fuse holder for installation. With 938 pieces in current inventory, this original component remains available for direct procurement. Identifying equivalent substitute parts ensures supply chain flexibility and supports procurement continuity when primary sources are unavailable.

Substiute Parts

25D27SB

Altech CorporationIn Stock: 103025D27SB Datasheet

Current PartRFQ

25D27

Eaton - Bussmann Electrical DivisionIn Stock: 70025D27 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 25D27SB are identified based on strict electrical and mechanical parameter alignment. The following criteria determine substitution eligibility:

• Current Rating: 25A (exact match required)
• Voltage Rating - AC: 500VAC (exact match required)
• Fuse Type: Cartridge (exact match required)
• Response Time: Slow Blow (exact match required)
• Physical Dimensions: 0.846" Dia x 1.969" L / 21.50mm x 50.00mm (exact match required)
• Mounting Configuration: Requires Holder (exact match required)

The 25D27 from Eaton - Bussmann Electrical Division meets all substitution criteria and is classified as an equivalent part.

Parameter Comparison

Engineering Selection Recommendations

The 25D27 from Eaton - Bussmann Electrical Division is a direct electrical and mechanical equivalent to the 25D27SB. Both components share identical current ratings, voltage specifications, physical dimensions, and response characteristics. The 25D27 carries Active product status and RoHS Compliant certification, supporting long-term supply chain reliability. Selection between these parts should be based on availability, lead time, and procurement requirements. Both components are suitable for identical circuit protection applications requiring 25A 500VAC cartridge fuse protection with slow-blow response.

Frequently Asked Questions (FAQ)

Q: Can the 25D27 be used as a direct replacement for the 25D27SB?

A: Yes. Both components meet identical electrical specifications (25A, 500VAC, Slow Blow response) and share the same physical dimensions (0.846" Dia x 1.969" L). Both require a compatible fuse holder for installation.

Q: What are the critical parameters for substitution?

A: Current rating (25A), voltage rating (500VAC), fuse type (Cartridge), response time (Slow Blow), and physical dimensions (0.846" Dia x 1.969" L) must match exactly. Mounting configuration (Requires Holder) must also be identical.

Q: Does the 25D27 have any compliance advantages?

A: The 25D27 is certified RoHS Compliant and carries Active product status, supporting regulatory compliance and long-term availability assurance.

Q: Are there packaging differences between these parts?

A: The 25D27SB packaging specification is not provided in available data. The 25D27 is supplied in Bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: What is the breaking capacity of these fuses?

A: The 25D27 has a breaking capacity of 50kA at rated voltage. Breaking capacity for the 25D27SB is not specified in available documentation.