KLDR007.T Equivalent & Substitute Parts

Part Overview

The KLDR007.T is a 7A cartridge fuse manufactured by Littelfuse Inc. as part of the POWR-GARD® KLDR series. This component is rated for 600 VAC / 300 VDC operation with slow-blow response characteristics, designed for transformer protection applications. The part is currently classified as obsolete, making identification of suitable substitutes essential for ongoing system maintenance and component procurement.

Substiute Parts

KLDR007.T

Littelfuse Inc.In Stock: 821KLDR007.T Datasheet

Current PartRFQ

KLDR007.TXP

Littelfuse Inc.In Stock: 1007KLDR007.TXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KLDR007.T is determined by strict equivalence across the following critical parameters:

• Current Rating: 7A (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)

The KLDR007.TXP meets all substitution criteria as a direct equivalent within the same manufacturer series and product line.

Parameter Comparison

Engineering Selection Recommendations

The KLDR007.TXP is the direct substitute for the obsolete KLDR007.T. Both components are manufactured by Littelfuse Inc. within the same POWR-GARD® KLDR series and share identical electrical and mechanical specifications. The KLDR007.TXP maintains active product status, ensuring continued availability and supply chain reliability. Both parts carry equivalent regulatory approvals (CE, CSA, UL) and comply with ROHS3 requirements. The substitution is electrically and mechanically transparent, with no design modifications required in existing applications.

Frequently Asked Questions (FAQ)

Q: Can KLDR007.TXP be used as a direct replacement for KLDR007.T?

A: Yes. The KLDR007.TXP is a direct equivalent substitute. All electrical parameters (7A, 600 VAC / 300 VDC, slow-blow response), mechanical dimensions (10mm x 38mm midget cartridge), and regulatory certifications are identical.

Q: What is the difference between KLDR007.T and KLDR007.TXP?

A: The primary difference is product status. KLDR007.T is obsolete, while KLDR007.TXP is active. The packaging differs (KLDR007.T uses standard packaging; KLDR007.TXP uses box packaging), but electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when substituting KLDR007.T with KLDR007.TXP?

A: No compatibility concerns exist. Both parts use the same 5AG, 10mm x 38mm midget cartridge form factor and require the same holder. Installation and operation are identical.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both KLDR007.T and KLDR007.TXP carry CE, CSA, and UL approvals and are ROHS3 compliant.

Q: What is the breaking capacity of these fuses?

A: Both parts have a breaking capacity of 200kA AC and 20kA DC at rated voltage.