KLDR005.T Equivalent & Substitute Parts

Part Overview

The KLDR005.T is a 5A cartridge fuse rated for 600 VAC / 300 VDC operation, manufactured by Littelfuse Inc. as part of the POWR-GARD® KLDR series. This component is designed for transformer protection applications and features slow-blow response characteristics with CC class rating. The part is currently classified as obsolete, making identification of suitable substitutes necessary for ongoing system maintenance and component procurement.

Substiute Parts

KLDR005.T

Littelfuse Inc.In Stock: 1533KLDR005.T Datasheet

Current PartRFQ

KLDR005.TXP

Littelfuse Inc.In Stock: 983KLDR005.TXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KLDR005.T is based on strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following areas:

• Current Rating: 5A
• Voltage Rating: 600 VAC / 300 VDC
• Response Time: Slow Blow
• Class: CC
• Package / Case: 5AG, 10mm x 38mm (Midget)
• Physical Dimensions: 0.406" Dia x 1.500" L (10.30mm x 38.10mm)
• Breaking Capacity: 200kA AC, 20kA DC
• Approval Certifications: CE, CSA, UL

The KLDR005.TXP meets all these criteria and is classified as an active product, providing continuity for applications currently using the obsolete KLDR005.T.

Parameter Comparison

Engineering Selection Recommendations

The KLDR005.TXP is the direct substitute for the obsolete KLDR005.T. Both components are manufactured by Littelfuse Inc. and maintain identical electrical ratings, mechanical dimensions, and regulatory certifications. The KLDR005.TXP carries active product status, ensuring ongoing availability and support. Both parts comply with ROHS3 requirements and hold CE, CSA, and UL approvals, meeting the same regulatory framework. Selection of the KLDR005.TXP eliminates obsolescence risk while maintaining full functional and physical compatibility with existing fuse holder assemblies and circuit protection applications.

Frequently Asked Questions (FAQ)

Q: Can KLDR005.TXP be used as a direct replacement for KLDR005.T?

A: Yes. The KLDR005.TXP is electrically and mechanically identical to the KLDR005.T across all specified parameters, including current rating, voltage ratings, response time, class designation, physical dimensions, and breaking capacity. Both components are compatible with the same fuse holder assemblies.

Q: What is the difference between KLDR005.T and KLDR005.TXP?

A: The primary difference is product status. KLDR005.T is obsolete, while KLDR005.TXP is active. The electrical and mechanical specifications are identical. The packaging differs (KLDR005.T uses standard packaging; KLDR005.TXP uses bulk packaging), but this does not affect component functionality or compatibility.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the KLDR005.T and KLDR005.TXP measure 0.406" diameter by 1.500" length (10.30mm x 38.10mm) and use the 5AG, 10mm x 38mm (Midget) package format. They are mechanically interchangeable in all fuse holder applications.

Q: Do both parts carry the same regulatory certifications?

A: Yes. Both KLDR005.T and KLDR005.TXP hold CE, CSA, and UL approvals and are ROHS3 compliant. They meet identical regulatory requirements for transformer protection applications.

Q: What is the breaking capacity of these fuses?

A: Both components have a breaking capacity of 200kA at rated AC voltage (600 VAC) and 20kA at rated DC voltage (300 VDC).