ATDR3 Equivalent & Substitute Parts Reference

Part Overview

The ATDR3 is a cartridge fuse manufactured by Mersen USA Newburyport-MA L.L.C., rated for 600V at 3A with a time-delay (slow-blow) response characteristic. This component is classified as a CC (Cartridge Class) fuse and is currently in active production status with 943 units available in inventory. The ATDR3 is RoHS non-compliant and carries an ECCN classification of EAR99. Identifying equivalent substitute parts is necessary to ensure supply chain continuity, manage inventory optimization, and provide design flexibility when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

ATDR3

Mersen USA Newburyport-MA L.L.C.In Stock: 965ATDR3 Datasheet

Current PartRFQ

LP-CC-3

Eaton - Bussmann Electrical DivisionIn Stock: 1114LP-CC-3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATDR3 is determined by strict alignment of the following electrical and mechanical parameters:

• Current Rating: 3A (exact match required)
• Voltage Rating - AC: 600V (exact match required)
• Fuse Type: Cartridge (exact match required)
• Class: CC (exact match required)
• Response Time: Time Delay / Slow Blow (exact match required)

The LP-CC-3 manufactured by Eaton - Bussmann Electrical Division meets all substitution criteria. This part shares identical electrical ratings (3A, 600VAC), fuse classification (CC Cartridge), and response characteristic (Slow Blow). Both parts are classified under HTSUS code 8536.10.0040 and carry EAR99 ECCN designation, confirming functional and regulatory equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the ATDR3 and LP-CC-3 are active production components with established supply availability. The LP-CC-3 offers enhanced compliance status, meeting ROHS3 requirements and carrying multi-agency approvals (CE, CSA, UR), whereas the ATDR3 is RoHS non-compliant. For applications requiring regulatory compliance with modern environmental standards, the LP-CC-3 is the preferred selection. Both parts share identical electrical ratings and fuse classification, ensuring functional interchangeability in 3A, 600VAC cartridge fuse applications. The LP-CC-3 provides additional DC voltage capability (150VDC) and specified breaking capacity ratings, offering broader application flexibility. Selection should be based on compliance requirements, holder compatibility, and specific application voltage parameters.

Frequently Asked Questions (FAQ)

Q: What makes LP-CC-3 a valid substitute for ATDR3?

A: The LP-CC-3 meets all critical substitution parameters: identical 3A current rating, 600VAC voltage rating, CC cartridge fuse classification, and slow-blow response characteristic. Both parts are classified under the same HTSUS code (8536.10.0040) and ECCN designation (EAR99).

Q: Are there mechanical compatibility concerns between ATDR3 and LP-CC-3?

A: The LP-CC-3 is specified as a 5AG, 10mm x 38mm (Midget) cartridge fuse. The ATDR3 mechanical specifications are not provided in the reference data. Verification of holder compatibility is necessary before substitution to ensure proper mechanical fit and electrical contact.

Q: What is the primary difference in compliance between these parts?

A: The LP-CC-3 is ROHS3 compliant and carries CE, CSA, and UR approvals. The ATDR3 is RoHS non-compliant. For applications subject to environmental or regulatory restrictions, the LP-CC-3 is the appropriate selection.

Q: Can LP-CC-3 be used in DC applications where ATDR3 was specified?

A: The LP-CC-3 is rated for 150VDC operation. The ATDR3 DC voltage rating is not specified. If DC operation is required, the LP-CC-3 provides documented DC capability; however, the original ATDR3 application parameters must be reviewed to confirm DC voltage requirements do not exceed 150V.

Q: What is the packaging difference between these parts?

A: The ATDR3 is supplied in Box packaging. The LP-CC-3 is supplied in Bulk packaging. Procurement and inventory management processes may require adjustment based on packaging format preferences.