TE Connectivity AMP Connectors 1-66109-5 Socket Contact Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-66109-5 is an active socket contact designed for the Multimate III+ connector series. This stamped brass socket contact accommodates 24-26 AWG wire gauges and features tin-lead crimp termination. The part is currently in active production status with 922 pieces available in new original inventory.

Identification of equivalent and substitute parts is necessary to address component availability, compliance requirements, and manufacturing specifications. The primary substitute part 1-66109-8 offers an alternative with modified contact finish specifications while maintaining core functional compatibility within the Multimate III+ series.

Substiute Parts

1-66109-5

TE Connectivity AMP ConnectorsIn Stock: 10041-66109-5 Datasheet

Current PartRFQ

1-66109-8

TE Connectivity AMP ConnectorsIn Stock: 12511-66109-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between 1-66109-5 and 1-66109-8 is determined by the following key parameters that remain constant across both parts:

Invariant Parameters (Must Match for Substitution):

• Series: Multimate III+
• Type: Stamped
• Pin or Socket: Socket
• Contact Termination: Crimp
• Wire Gauge: 24-26 AWG
• Contact Material: Brass
• Contact Finish Thickness: 50.0µin (1.27µm)
• Moisture Sensitivity Level: 1 (Unlimited)
• ECCN: EAR99
• HTSUS: 8536.90.4000

Variable Parameters (Differ Between Parts):

• Contact Finish: Tin-Lead (1-66109-5) versus Tin (1-66109-8)
• RoHS Status: RoHS non-compliant (1-66109-5) versus ROHS3 Compliant (1-66109-8)
• REACH Status: REACH Affected (1-66109-5) versus Vendor Undefined (1-66109-8)

The substitution relationship is valid because the variable parameters do not affect the core electrical and mechanical interface specifications required for Multimate III+ connector assembly.

Parameter Comparison

Engineering Selection Recommendations

1-66109-5 Selection Criteria:

• Applications requiring tin-lead contact finish specifications
• Designs where RoHS non-compliance is acceptable or not applicable
• Existing assemblies using tin-lead plated contacts

1-66109-8 Selection Criteria:

• Applications requiring ROHS3 compliance
• New designs targeting RoHS-compliant component specifications
• Environments where lead-free contact finishes are mandated
• Applications with higher inventory availability requirements (1235 pieces in stock versus 922 pieces)

Both parts maintain identical electrical and mechanical interface specifications within the Multimate III+ series. Selection between these parts is determined by regulatory compliance requirements and contact finish material specifications rather than functional performance differences.

Frequently Asked Questions (FAQ)

Q: Can 1-66109-8 be used as a direct replacement for 1-66109-5 in existing designs?

A: Yes. Both parts share identical wire gauge (24-26 AWG), contact termination method (crimp), series designation (Multimate III+), and contact finish thickness (50.0µin). The primary difference is the contact finish material: 1-66109-5 uses tin-lead while 1-66109-8 uses tin. This difference does not affect mechanical or electrical interface compatibility within the Multimate III+ connector system.

Q: What is the significance of the RoHS compliance difference between these parts?

A: 1-66109-5 is RoHS non-compliant due to its tin-lead contact finish, which contains lead. 1-66109-8 is ROHS3 compliant with a tin-only contact finish. Selection depends on whether the end application or regulatory jurisdiction requires RoHS compliance. Both parts are functionally equivalent for Multimate III+ assembly.

Q: Are there any performance differences between tin-lead and tin contact finishes?

A: Both contact finishes are specified at 50.0µin (1.27µm) thickness and are applied to identical brass base materials. The electrical and mechanical performance characteristics within the Multimate III+ connector interface are equivalent. Contact finish selection is driven by regulatory compliance and material specifications rather than performance differentiation.

Q: What does MSL 1 (Unlimited) mean for these socket contacts?

A: Moisture Sensitivity Level 1 indicates the lowest moisture sensitivity classification. These contacts have unlimited shelf life and do not require special moisture-controlled storage or handling procedures prior to assembly.

Q: Can these socket contacts be used with different wire gauges?

A: No. Both 1-66109-5 and 1-66109-8 are specified exclusively for 24-26 AWG wire gauges. Wire gauge compatibility is a fixed parameter and cannot be altered.

Q: What is the base product number relationship?

A: Both 1-66109-5 and 1-66109-8 share the base product number 66109, indicating they are variants within the same product family. The suffix numbers (-5 and -8) denote specific configuration variations, primarily the contact finish specification.