TE Connectivity AMP Connectors 1776003-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1776003-3 is a socket contact component designed for rectangular connector applications. This part features tin crimp termination and stamped construction, classified as a rectangular connector contact element. The 1776003-3 is currently listed as obsolete, necessitating identification of functionally equivalent substitute components for ongoing procurement and assembly requirements. Active alternative parts maintain compatibility through matching electrical and mechanical parameters while offering current product status and improved supply chain availability.

Substiute Parts

1776003-3

TE Connectivity AMP ConnectorsIn Stock: 7141776003-3 Datasheet

Current PartRFQ

1-66473-7

TE Connectivity AMP ConnectorsIn Stock: 11221-66473-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 1776003-3 is based on alignment of critical electrical and mechanical parameters that ensure functional compatibility within rectangular connector assemblies. The primary substitution criterion is the socket contact configuration combined with tin finish specification. The substitute part 1-66473-7 maintains equivalence through the following parameter alignment:

Key Substitution Parameters:

• Socket contact type (Pin or Socket classification)
• Tin contact finish material
• Identical contact finish thickness (100.0µin / 2.54µm)
• Stamped construction method
• Identical RoHS compliance classification
• Identical MSL rating (1 - Unlimited)
• Identical ECCN and HTSUS classifications
• TE Connectivity AMP Connectors manufacturer continuity

The primary difference between the main part and substitute is the contact termination method: the 1776003-3 uses crimp termination, while the 1-66473-7 uses wire wrap termination. This distinction reflects different assembly methodologies but does not affect the core electrical or mechanical compatibility parameters for socket contact functionality.

Parameter Comparison

Engineering Selection Recommendations

The 1-66473-7 serves as the active substitute for the obsolete 1776003-3 based on maintained compliance with RoHS and MSL specifications. The substitute part carries ROHS3 compliance, representing current regulatory alignment, while the original part maintains RoHS compliance. Both components share identical contact finish specifications, electrical classification codes, and tariff designations.

Selection between these components depends on assembly methodology requirements. The 1776003-3 crimp termination design is no longer in active production. The 1-66473-7 wire wrap termination variant is currently manufactured and stocked, providing reliable supply chain access. Both parts are classified under identical ECCN and HTSUS categories, indicating equivalent export control and trade classification status.

The substitute part is part of the Trim Trio® SM/SC-M series, indicating integration within a current TE Connectivity connector platform. Inventory availability for the 1-66473-7 (1049 pieces) exceeds that of the obsolete 1776003-3 (685 pieces), supporting transition planning for ongoing production requirements.

Frequently Asked Questions (FAQ)

Q: What is the primary reason the 1776003-3 requires substitution?

A: The 1776003-3 is classified as obsolete and no longer in active production. The 1-66473-7 is the current active equivalent that maintains the same electrical and mechanical specifications while offering ongoing manufacturing support and supply availability.

Q: Are the contact finish specifications identical between the main part and substitute?

A: Yes. Both the 1776003-3 and 1-66473-7 feature tin contact finish with identical thickness of 100.0µin (2.54µm), ensuring equivalent electrical contact properties and corrosion resistance characteristics.

Q: What is the difference in termination methods, and does it affect compatibility?

A: The 1776003-3 uses crimp termination, while the 1-66473-7 uses wire wrap termination. These represent different assembly connection methods. Compatibility depends on the connector assembly design and whether the application supports wire wrap termination. Assembly methodology must be evaluated against specific connector platform requirements.

Q: Do both parts meet current RoHS requirements?

A: The 1776003-3 is RoHS Compliant. The 1-66473-7 is ROHS3 Compliant, representing alignment with current regulatory standards. Both parts satisfy RoHS compliance requirements for their respective production periods.

Q: Are the moisture sensitivity levels the same?

A: Yes. Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.

Q: What is the series designation for the substitute part?

A: The 1-66473-7 is part of the Trim Trio® SM/SC-M series, a current TE Connectivity connector platform. The original 1776003-3 does not list a series designation in available documentation.

Q: Are export control classifications identical?

A: Yes. Both parts carry identical ECCN (EAR99) and HTSUS (8536.90.4000) classifications, indicating equivalent export control and tariff treatment.

Q: What inventory considerations should be evaluated?

A: The 1776003-3 has 685 pieces in stock, while the 1-66473-7 has 1049 pieces available. For long-term production planning, the substitute part offers greater inventory depth and ongoing replenishment capability through active manufacturing.