TE Connectivity 103959-1 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 103959-1 is a 2-position rectangular receptacle connector designed for IDC (Insulation Displacement Contact) termination with 26-30 AWG wire. This connector is part of the AMPMODU MTE series and features a tin-lead contact finish with latch lock fastening. The part maintains active product status and is suitable for free-hanging in-line applications requiring discrete or ribbon cable termination.

Substitute parts are identified to address inventory availability, compliance requirements, or contact finish specifications while maintaining functional equivalence within the defined electrical and mechanical parameters.

Substiute Parts

103959-1

TE Connectivity AMP ConnectorsIn Stock: 1025103959-1 Datasheet

Current PartRFQ

5-103959-1

TE Connectivity AMP ConnectorsIn Stock: 24045-103959-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between the main part 103959-1 and the identified substitute 5-103959-1 is based on equivalence across the following critical parameters:

Electrical and Mechanical Compatibility:

• Identical connector type (Receptacle), contact type (Female Socket), and number of positions (2)
• Matching pitch (0.100" / 2.54mm) and row configuration (1 row)
• Identical cable termination method (IDC) and wire gauge range (26-30 AWG)
• Matching mounting type (Free Hanging In-Line) and fastening mechanism (Latch Lock)
• Identical contact finish thickness (100.0µin / 2.54µm)

Allowable Variation:

• Contact finish material differs: 103959-1 specifies Tin-Lead; 5-103959-1 specifies Tin only
• RoHS compliance status differs: 103959-1 is Not Applicable; 5-103959-1 is ROHS3 Compliant
• REACH status differs: 103959-1 is REACH Affected; 5-103959-1 is Vendor Undefined

These variations do not affect the functional performance of the connector within its specified electrical and mechanical operating parameters.

Parameter Comparison

Engineering Selection Recommendations

Both 103959-1 and 5-103959-1 maintain active product status and are manufactured by TE Connectivity within the AMPMODU MTE series. Selection between these parts should be based on the following criteria:

103959-1 (Tin-Lead Contact Finish):

• Applicable for applications where RoHS compliance is not a requirement
• Suitable for legacy system designs or applications with established tin-lead specifications
• Contact finish material is tin-lead with 100.0µin thickness

5-103959-1 (Tin Contact Finish):

• Compliant with ROHS3 requirements for new designs and regulated applications
• Recommended for applications requiring lead-free contact materials
• Contact finish material is tin with 100.0µin thickness
• Higher inventory availability (2297 pcs vs. 915 pcs)

Both parts are classified under ECCN EAR99 and maintain identical electrical and mechanical performance within the specified 26-30 AWG wire gauge range and IDC termination method.

Frequently Asked Questions (FAQ)

Q: Can 5-103959-1 be used as a direct replacement for 103959-1?

A: Yes. Both connectors are functionally equivalent across all electrical and mechanical parameters including connector type, position count, pitch, contact type, wire gauge, and termination method. The primary difference is the contact finish material (tin-lead vs. tin) and RoHS compliance status.

Q: What is the difference between the tin-lead and tin contact finishes?

A: The 103959-1 features a tin-lead contact finish, while the 5-103959-1 features a tin-only contact finish. Both maintain identical contact finish thickness (100.0µin / 2.54µm). The tin-only finish in 5-103959-1 is lead-free and compliant with ROHS3 requirements.

Q: Are these connectors compatible with both discrete and ribbon cable?

A: Yes. Both 103959-1 and 5-103959-1 support discrete or ribbon cable termination via IDC (Insulation Displacement Contact) method for wire gauges 26-30 AWG.

Q: What does the 0.100" pitch specification mean?

A: The 0.100" (2.54mm) pitch refers to the center-to-center distance between the two contact positions. This specification is identical for both the main part and substitute.

Q: Is the latch lock fastening type the same on both connectors?

A: Yes. Both 103959-1 and 5-103959-1 use latch lock fastening and are configured as free-hanging in-line connectors.

Q: What is the moisture sensitivity level, and does it differ between parts?

A: Both connectors have a Moisture Sensitivity Level (MSL) of 1, which indicates unlimited moisture sensitivity tolerance. This specification is identical for both parts.

Q: Can these connectors be used in applications requiring RoHS compliance?

A: The 5-103959-1 is ROHS3 compliant and is suitable for applications with RoHS requirements. The 103959-1 has a RoHS status of Not Applicable and should be used only in applications where RoHS compliance is not mandated.

Q: What is the closed end feature?

A: The closed end feature indicates that the connector housing is fully enclosed, providing protection for the internal contacts and termination points.