TE Connectivity AMP Connectors 103239-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 103239-5 is a 5-position rectangular connector header designed for through-hole mounting with 0.100" (2.54mm) pitch. This connector is part of the AMPMODU Mod II series and features male pin contacts with gold-plated mating surfaces and tin-lead plated posts for solder termination.

The 103239-5 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where this connector type is specified or functionally required.

Substiute Parts

103239-5

TE Connectivity AMP ConnectorsIn Stock: 968103239-5 Datasheet

Current PartRFQ

5-146281-5

TE Connectivity AMP ConnectorsIn Stock: 201775-146281-5 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 103239-5 is based on strict equivalence of the following critical parameters:

• Connector Type & Series: Header, Breakaway configuration within AMPMODU Mod II series
• Contact Configuration: Male pin contacts, 5 positions, single row
• Pitch & Spacing: 0.100" (2.54mm) mating pitch
• Mounting & Termination: Through-hole solder termination
• Electrical Performance: 3A current rating, operating temperature range -65°C ~ 105°C
• Safety Compliance: UL94 V-0 flammability rating

The substitute part 5-146281-5 maintains all critical electrical and mechanical parameters required for functional equivalence. Differences in insulation material (Liquid Crystal Polymer vs. Thermoplastic) and contact finish post composition (Tin vs. Tin-Lead) do not affect connector compatibility or performance within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The 5-146281-5 is the direct functional equivalent for the obsolete 103239-5. Both connectors maintain identical electrical and mechanical specifications across all critical parameters including pitch, contact configuration, current rating, and operating temperature range.

The 5-146281-5 offers the following advantages for new designs and ongoing applications:

• Active Product Status: Currently manufactured and supported by TE Connectivity
• RoHS Compliance: Meets RoHS requirements, suitable for applications with regulatory compliance mandates
• Material Enhancement: Liquid Crystal Polymer insulation provides improved dimensional stability and thermal performance compared to thermoplastic
• Availability: 20,135 units in stock versus 875 units for the obsolete part

For applications where RoHS non-compliance is not a constraint, the 103239-5 remains functionally equivalent. The difference in post contact finish (Tin-Lead vs. Tin) does not affect connector performance or compatibility within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the 5-146281-5 directly replace the 103239-5 in existing designs?

A: Yes. Both connectors are mechanically and electrically equivalent. They share identical pitch (0.100"), position count (5), contact configuration (male pin), mounting type (through-hole), and current rating (3A). Mating surfaces and contact dimensions are identical.

Q: What is the difference between Thermoplastic and Liquid Crystal Polymer insulation materials?

A: Both materials meet UL94 V-0 flammability requirements and operate across the same temperature range (-65°C ~ 105°C). Liquid Crystal Polymer provides superior dimensional stability and thermal performance. This difference does not affect connector compatibility or electrical performance.

Q: Does the change from Tin-Lead to Tin post finish affect solderability?

A: No. Both finishes are standard for solder termination and provide equivalent solderability. Tin finish is preferred in modern manufacturing due to lead-free compliance requirements.

Q: Why is the 103239-5 listed as obsolete?

A: The 103239-5 has been superseded by the 5-146281-5 within the AMPMODU Mod II series. The substitute part offers improved compliance and material specifications while maintaining full functional equivalence.

Q: Are there packaging differences between these parts?

A: The 103239-5 is supplied in standard packaging, while the 5-146281-5 is supplied in bulk packaging. Both are suitable for through-hole assembly and solder termination.

Q: What is the MSL rating and why does it matter?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity. These connectors can be stored indefinitely without special moisture control measures.