TE Connectivity 66740-7 Socket Contact Equivalent & Substitute Parts

Part Overview

The TE Connectivity 66740-7 is a socket contact designed for the Multimate XII connector series. This component is a tin-lead crimp socket contact rated for 12-16 AWG wire gauges, suitable for power applications in aerospace, defense, and marine environments. The part is currently active in production with 908 pieces available in bulk packaging.

Substitute parts are identified to address packaging format requirements, compliance certifications, or inventory availability while maintaining electrical and mechanical compatibility within the Multimate XII series.

Substiute Parts

66740-7

TE Connectivity Aerospace, Defense and MarineIn Stock: 95566740-7 Datasheet

Current PartRFQ

1-66740-9

TE Connectivity Aerospace, Defense and MarineIn Stock: 8171-66740-9 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between TE Connectivity 66740-7 and 1-66740-9 is valid based on the following matching parameters:

Electrical Compatibility Criteria:

• Identical wire gauge rating: 12-16 AWG
• Identical contact termination method: Crimp
• Identical contact material: Copper
• Identical contact finish thickness: 50.0µin (1.27µm)
• Identical application type: Power, Stamped
• Identical series designation: Multimate XII

Mechanical Compatibility Criteria:

• Identical contact type: Socket
• Identical moisture sensitivity level: 1 (Unlimited)
• Identical base product number: 66740

Differentiating Factors:

• Packaging format: 66740-7 supplied in Bulk; 1-66740-9 supplied in Tape & Reel (TR)
• Contact finish composition: 66740-7 uses Tin-Lead; 1-66740-9 uses Tin
• RoHS compliance: 66740-7 is RoHS non-compliant; 1-66740-9 is ROHS3 compliant
• REACH status: 66740-7 is Vendor Undefined; 1-66740-9 is REACH Unaffected

Parameter Comparison

Engineering Selection Recommendations

66740-7 Selection Criteria:

• Applications requiring bulk packaging format for high-volume assembly operations
• Systems where RoHS non-compliance is acceptable or not mandated
• Tin-lead contact finish specifications

1-66740-9 Selection Criteria:

• Applications subject to RoHS3 compliance requirements
• Applications subject to REACH regulatory requirements
• Automated assembly processes utilizing tape and reel packaging
• Systems requiring tin contact finish without lead content

Both parts maintain identical electrical performance and mechanical compatibility within the Multimate XII connector series. Selection between these parts is determined by packaging requirements, regulatory compliance mandates, and contact finish specifications rather than functional performance differences.

Frequently Asked Questions (FAQ)

Q: Can 66740-7 and 1-66740-9 be used interchangeably in the same connector assembly?

A: Yes. Both parts are socket contacts for the Multimate XII series with identical wire gauge ratings (12-16 AWG), crimp termination, copper material composition, and contact finish thickness (50.0µin). They are electrically and mechanically compatible for connector assembly applications.

Q: What is the primary difference between these two parts?

A: The primary differences are packaging format (Bulk versus Tape & Reel), contact finish composition (Tin-Lead versus Tin), and regulatory compliance status (RoHS non-compliant versus ROHS3 compliant). Electrical and mechanical specifications are identical.

Q: Which part should be selected for RoHS-compliant applications?

A: Part 1-66740-9 is ROHS3 compliant and suitable for applications requiring RoHS compliance. Part 66740-7 is RoHS non-compliant and not suitable for such applications.

Q: Does the contact finish difference (Tin-Lead versus Tin) affect electrical performance?

A: Both contact finishes are applied at identical thickness (50.0µin / 1.27µm) and provide equivalent electrical performance in the Multimate XII series. Selection between tin-lead and tin finishes is determined by application requirements and regulatory constraints.

Q: What packaging format is appropriate for automated assembly?

A: Part 1-66740-9 is supplied in Tape & Reel (TR) format, which is standard for automated assembly equipment. Part 66740-7 is supplied in Bulk packaging, which is suitable for manual assembly or bulk handling operations.

Q: Are both parts currently in production?

A: Yes. Both 66740-7 and 1-66740-9 are listed as Active products with current inventory availability (908 and 794 pieces respectively).

Q: What is the moisture sensitivity level for these contacts?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.