KLDR03.2T Equivalent & Substitute Parts

Part Overview

The KLDR03.2T is a 3.2A cartridge fuse rated for 600 VAC and 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 essential for ongoing system maintenance and component procurement.

Substiute Parts

KLDR03.2T

Littelfuse Inc.In Stock: 916KLDR03.2T Datasheet

Current PartRFQ

KLDR03.2TXP

Littelfuse Inc.In Stock: 703KLDR03.2TXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KLDR03.2T is determined by strict equivalence across the following critical parameters:

• Current Rating: 3.2A (exact match required)
• Voltage Rating: 600 VAC / 300 VDC (exact match required)
• Response Time: Slow Blow (exact match required)
• Fuse Class: CC (exact match required)
• Package / Case: 5AG, 10mm x 38mm Midget (exact match required)
• Physical Dimensions: 0.406" Dia x 1.500" L (exact match required)
• Breaking Capacity: 200kA AC / 20kA DC (exact match required)
• Approval Certifications: CE, CSA, UL (must be present)

The KLDR03.2TXP meets all substitution criteria as a direct equivalent within the same manufacturer series and product line.

Parameter Comparison

Engineering Selection Recommendations

The KLDR03.2TXP is the direct substitute for the obsolete KLDR03.2T. Both components share identical electrical and mechanical specifications, including current rating, voltage ratings, response characteristics, and physical dimensions. The KLDR03.2TXP maintains active product status with current manufacturing support from Littelfuse Inc., ensuring long-term availability and supply chain continuity. Both parts carry equivalent regulatory certifications (CE, CSA, UL) and comply with ROHS3 requirements. Selection of the KLDR03.2TXP eliminates obsolescence risk while preserving full functional and mechanical compatibility with existing system designs.

Frequently Asked Questions (FAQ)

Q: Can the KLDR03.2TXP be used as a direct replacement for the KLDR03.2T?

A: Yes. The KLDR03.2TXP is electrically and mechanically identical to the KLDR03.2T across all critical parameters: 3.2A current rating, 600 VAC / 300 VDC voltage ratings, slow-blow response, CC class, and 5AG package dimensions. Both components are approved by CE, CSA, and UL.

Q: What is the primary difference between these two parts?

A: The KLDR03.2T is classified as obsolete, while the KLDR03.2TXP maintains active product status. The KLDR03.2TXP is the current production equivalent with ongoing manufacturer support.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.406" diameter by 1.500" length (10.30mm x 38.10mm) and use the 5AG, 10mm x 38mm midget cartridge package format.

Q: Do both parts require a holder for installation?

A: Yes. Both the KLDR03.2T and KLDR03.2TXP are cartridge fuses that require a compatible fuse holder for operation.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical regulatory approvals (CE, CSA, UL) and are ROHS3 compliant.