ATDR2 Equivalent & Substitute Parts Reference

Part Overview

The ATDR2 is a CC TD fuse rated for 600V at 2A, manufactured by Mersen USA Newburyport-MA L.L.C. This fuse is designed for circuit protection applications requiring time-delay characteristics at 600V AC operation. The part is currently active in production with 1062 units in stock. Identifying equivalent substitute parts is necessary to ensure supply chain continuity, support design flexibility across manufacturing facilities, and provide alternative sourcing options when the primary part becomes unavailable.

Substiute Parts

ATDR2

Mersen USA Newburyport-MA L.L.C.In Stock: 1076ATDR2 Datasheet

Current PartRFQ

LP-CC-2

Eaton - Bussmann Electrical DivisionIn Stock: 5654LP-CC-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The LP-CC-2 manufactured by Eaton - Bussmann Electrical Division qualifies as a functional equivalent based on the following critical parameters:

• Current Rating: Both parts are rated at 2A
• Voltage Rating: Both parts support 600V AC operation (LP-CC-2 additionally supports 300V DC)
• Fuse Class: Both parts are Class CC cartridge fuses
• Response Time: Both parts provide slow-blow (time-delay) characteristics
• Regulatory Classification: Both parts share the same ECCN (EAR99) and HTSUS code (8536.10.0040)

The LP-CC-2 is a cartridge-type fuse that requires a holder for installation, whereas the ATDR2 packaging details indicate a box format. Both parts are active products with current manufacturing status and established supply availability.

Parameter Comparison

Engineering Selection Recommendations

Both the ATDR2 and LP-CC-2 are active products with established supply chains. The LP-CC-2 offers the advantage of ROHS3 compliance, whereas the ATDR2 is RoHS non-compliant. Both parts carry identical ECCN and HTSUS classifications, indicating equivalent regulatory treatment for export and tariff purposes.

The LP-CC-2 provides additional DC voltage capability (300V DC) beyond the AC-only specification of the ATDR2, making it suitable for applications requiring dual-voltage operation. The LP-CC-2 cartridge format requires a compatible holder for installation, which must be verified against the mechanical requirements of the target application.

Selection between these parts should be based on compliance requirements (RoHS status), mechanical form factor compatibility (cartridge vs. alternative packaging), and DC voltage operation needs.

Frequently Asked Questions (FAQ)

Q: Can the LP-CC-2 directly replace the ATDR2 in all applications?

A: Both parts share identical current rating (2A), AC voltage rating (600V), fuse class (CC), and response time characteristics (slow-blow). However, the LP-CC-2 is a cartridge fuse requiring a holder, while the ATDR2 packaging format differs. Mechanical compatibility with the installation socket or holder must be confirmed before substitution.

Q: What is the significance of the RoHS compliance difference?

A: The ATDR2 is RoHS non-compliant, while the LP-CC-2 is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements mandating RoHS compliance, the LP-CC-2 is the appropriate selection. For legacy systems or applications without RoHS requirements, both parts are functionally equivalent.

Q: Does the LP-CC-2 DC voltage rating affect substitution suitability?

A: The LP-CC-2 supports 300V DC operation in addition to 600V AC, while the ATDR2 specification does not include DC voltage rating. This additional capability does not prevent substitution in AC-only applications. For applications requiring DC operation, the LP-CC-2 provides expanded functionality.

Q: Are there packaging or mounting considerations for substitution?

A: The LP-CC-2 is specified as a cartridge fuse in 5AG format (10mm x 38mm midget size) requiring a holder. The ATDR2 is supplied in box packaging. Installation compatibility depends on the mechanical design of the target circuit protection holder or socket. Verify dimensional and mounting specifications before implementation.

Q: Do both parts share the same regulatory classifications?

A: Yes. Both the ATDR2 and LP-CC-2 carry identical ECCN (EAR99) and HTSUS code (8536.10.0040) classifications, indicating equivalent regulatory treatment for export control and tariff purposes.