ATQR30 Equivalent & Substitute Parts Reference

Part Overview

The ATQR30 is a CC class fuse rated for 30A at 600V, manufactured by Mersen USA Newburyport-MA L.L.C. This component is designed for circuit protection in industrial and commercial applications. The part maintains Active product status with ROHS3 compliance and is currently in stock with 1033 units available. Substitute parts may be required due to packaging preferences, supplier availability, or specific application mounting requirements while maintaining identical electrical performance characteristics.

Substiute Parts

ATQR30

Mersen USA Newburyport-MA L.L.C.In Stock: 1064ATQR30 Datasheet

Current PartRFQ

KLDR030.HXP

Littelfuse Inc.In Stock: 828KLDR030.HXP Datasheet

SimilarRFQ

KLDR030.TXP

Littelfuse Inc.In Stock: 761KLDR030.TXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The ATQR30 has two qualified substitute parts: KLDR030.TXP and KLDR030.HXP, both manufactured by Littelfuse Inc. under the POWR-GARD® KLDR series. Substitution is valid based on the following matching electrical and mechanical parameters:

• Current Rating: 30A (identical across all parts)
• Voltage Rating - AC: 600V (identical across all parts)
• Voltage Rating - DC: 300V (substitute parts provide additional DC rating capability)
• Fuse Class: CC (identical across all parts)
• Response Time: Slow Blow (identical across all parts)
• Breaking Capacity: 200kA AC, 20kA DC (substitute parts specified)
• Package / Case: 5AG, 10mm x 38mm Midget (identical across all parts)
• RoHS Status: ROHS3 Compliant (identical across all parts)
• ECCN: EAR99 (identical across all parts)
• HTSUS Code: 8536.10.0040 (identical across all parts)

The primary difference between substitute parts is packaging: KLDR030.TXP is supplied in Box packaging, while KLDR030.HXP is supplied in Bulk packaging.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status and ROHS3 compliance, meeting current regulatory requirements. The KLDR030.TXP and KLDR030.HXP substitutes carry CE, CSA, and UL approvals, providing additional third-party certification coverage. Selection between substitute parts should be based on packaging requirements: KLDR030.TXP for box packaging applications and KLDR030.HXP for bulk packaging scenarios. Both substitute parts are electrically and mechanically equivalent to the ATQR30 within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can KLDR030.TXP and KLDR030.HXP be used interchangeably with ATQR30?

A: Yes. Both substitute parts match the critical electrical parameters: 30A current rating, 600V AC voltage rating, CC fuse class, and identical physical dimensions (5AG, 10mm x 38mm Midget package). The primary difference is packaging format (Box vs. Bulk).

Q: What is the difference between KLDR030.TXP and KLDR030.HXP?

A: Both parts are electrically and mechanically identical. The only difference is packaging: KLDR030.TXP is supplied in Box packaging, while KLDR030.HXP is supplied in Bulk packaging. Selection depends on your procurement and inventory requirements.

Q: Do the substitute parts require a holder for installation?

A: Yes. The KLDR030.TXP and KLDR030.HXP are cartridge fuses that require a holder for installation, as specified in their detailed descriptions.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both KLDR030.TXP and KLDR030.HXP are ROHS3 compliant, matching the compliance status of the ATQR30.

Q: What certifications do the substitute parts carry?

A: The KLDR030.TXP and KLDR030.HXP carry CE, CSA, and UL approvals, providing comprehensive third-party certification for industrial and commercial applications.

Q: Can these fuses be used in DC applications?

A: The substitute parts (KLDR030.TXP and KLDR030.HXP) are rated for 300VDC, enabling use in DC circuits. The ATQR30 DC rating is not specified in the provided data.