TE Connectivity 770003-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 770003-4 is a split pin contact rectangular connector designed for 10-12 AWG wire gauge applications with gold plating and crimp termination. This component belongs to the Universal MATE-N-LOK II series and is classified as obsolete. The obsolete status necessitates identification of active equivalent parts to maintain design continuity and ensure procurement availability for new production runs and field service applications.

Substiute Parts

770003-4

TE Connectivity AMP ConnectorsIn Stock: 1119770003-4 Datasheet

Current PartRFQ

1-770003-0

TE Connectivity AMP ConnectorsIn Stock: 9421-770003-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for rectangular connector contacts is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Manufacturer and series (Universal MATE-N-LOK II)
• Contact type (Split Pin)
• Termination method (Crimp)
• Wire gauge range (10-12 AWG)
• Contact finish material and thickness (Gold, 30.0µin)
• Base product number (770003)

The substitute part 1-770003-0 maintains identical electrical and mechanical specifications to the main part 770003-4. Both components share the same base product number, confirming functional equivalence. The primary distinction is product status: 770003-4 is obsolete while 1-770003-0 is active. Additionally, 1-770003-0 is RoHS compliant and supplied in Tape & Reel packaging, whereas 770003-4 is RoHS non-compliant with unspecified packaging.

Parameter Comparison

Engineering Selection Recommendations

For New Production and Active Designs: Select part number 1-770003-0. This part is active in the TE Connectivity product line and carries RoHS compliance certification, meeting current regulatory requirements for electronic component manufacturing and distribution. The Tape & Reel packaging format supports automated assembly processes and high-volume production workflows.

For Legacy System Maintenance: Part 770003-4 remains functionally equivalent to 1-770003-0 for field service and repair applications where RoHS compliance is not a contractual or regulatory requirement. However, procurement of 770003-4 is constrained by its obsolete status. Current inventory availability should be verified before committing to this part for any new procurement.

Compliance Considerations: Organizations subject to RoHS directives or customer specifications requiring RoHS compliance must use 1-770003-0. The non-compliant status of 770003-4 may restrict its use in regulated markets and supply chains.

Frequently Asked Questions (FAQ)

Q: Are 770003-4 and 1-770003-0 electrically and mechanically interchangeable?

A: Yes. Both parts share identical specifications for wire gauge (10-12 AWG), contact finish (gold, 30.0µin thickness), termination method (crimp), and contact type (split pin). They are functionally equivalent within the Universal MATE-N-LOK II connector system.

Q: Why does the substitute part have a different part number if it is equivalent?

A: The part number change reflects a product line update by TE Connectivity. The prefix "1-" in 1-770003-0 indicates a revision or reissue of the base product 770003. This numbering convention typically accompanies changes in compliance status, packaging format, or manufacturing process while maintaining functional equivalence.

Q: What is the impact of RoHS compliance differences between these parts?

A: RoHS compliance is a regulatory requirement in many jurisdictions and a contractual requirement for many customers. 1-770003-0 meets RoHS standards, making it suitable for all markets and applications. 770003-4 does not meet RoHS standards and may be restricted from use in regulated supply chains or customer specifications that mandate RoHS compliance.

Q: Does packaging format affect connector performance?

A: No. Tape & Reel packaging used for 1-770003-0 is a distribution and handling format that does not alter the electrical or mechanical properties of the contact itself. It is optimized for automated assembly processes. The unspecified packaging of 770003-4 does not affect performance but may indicate bulk or alternative packaging formats.

Q: Can 770003-4 be used in new designs?

A: 770003-4 is classified as obsolete and is not recommended for new designs. Use 1-770003-0 for all new production. Obsolete parts face supply discontinuation and may not be available for future procurement needs.

Q: Are there any wire gauge or termination restrictions when substituting?

A: No. Both parts support identical wire gauge specifications (10-12 AWG) and use the same crimp termination method. No adjustments to assembly processes, tooling, or wire preparation are required when substituting between these parts.