TE Connectivity 1-103327-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-103327-4 is a 14-position rectangular connector header from the AMPMODU Mod II series, designed for through-hole board-to-board or cable applications with 0.100" (2.54mm) pitch spacing. This connector features male pins with solder termination and push-pull fastening. The part is currently obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Substiute Parts

1-103327-4

TE Connectivity AMP ConnectorsIn Stock: 8331-103327-4 Datasheet

Current PartRFQ

6-146278-4

TE Connectivity AMP ConnectorsIn Stock: 27026-146278-4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1-103327-4 is determined by strict equivalence across the following critical parameters:

• Connector pitch and position count: 0.100" (2.54mm) spacing with 14 positions
• Connector type and contact configuration: Header with male pins, single row, unshrouded
• Mounting and termination method: Through-hole solder termination
• Electrical ratings: 3A current rating and -65°C ~ 105°C operating temperature range
• Series compatibility: AMPMODU Mod II series
• Fastening mechanism: Push-pull fastening type
• Physical dimensions: Contact length, insulation height, and overall form factor

The substitute part 6-146278-4 maintains full equivalence across all these parameters while offering active product status and improved compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 6-146278-4 is the direct functional equivalent to the obsolete 1-103327-4. Both connectors maintain identical electrical and mechanical specifications across all critical parameters including pitch, position count, contact configuration, current rating, and operating temperature range.

Key distinctions between the parts are:

Product Status: The 1-103327-4 is obsolete, while 6-146278-4 is active. For new designs and ongoing production, 6-146278-4 ensures continued availability and manufacturer support.

Compliance: The 6-146278-4 is RoHS compliant, whereas the 1-103327-4 is RoHS non-compliant. Applications subject to RoHS regulations require the substitute part.

Contact Finish: The 1-103327-4 uses tin-lead plating; the 6-146278-4 uses tin plating. Both finishes provide equivalent electrical performance and corrosion resistance within the specified operating temperature range.

Insulation Material: The 1-103327-4 uses thermoplastic insulation; the 6-146278-4 uses liquid crystal polymer (LCP). LCP offers improved thermal stability and dimensional consistency, particularly in high-temperature applications near the upper operating limit.

For applications requiring the exact tin-lead contact finish of the original part, compatibility with the tin-plated substitute should be evaluated based on specific circuit requirements and environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can 6-146278-4 directly replace 1-103327-4 in existing designs?

A: Yes. The 6-146278-4 maintains full mechanical and electrical equivalence to the 1-103327-4 across all critical parameters: 14 positions, 0.100" pitch, male pin configuration, 3A current rating, and -65°C ~ 105°C operating temperature. Direct substitution is supported without PCB or assembly modifications.

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

A: Both finishes provide adequate electrical conductivity and corrosion resistance within the specified operating temperature range. Tin-lead (1-103327-4) and tin (6-146278-4) are functionally equivalent for this connector application. The choice between them depends on specific solderability requirements and environmental exposure conditions in your application.

Q: Why is the insulation material different between the two parts?

A: The 1-103327-4 uses thermoplastic insulation, while the 6-146278-4 uses liquid crystal polymer (LCP). LCP provides superior thermal stability and dimensional consistency, particularly beneficial for applications operating near the upper temperature limit of 105°C. Both materials meet UL94 V-0 flammability requirements and maintain performance across the full -65°C ~ 105°C operating range.

Q: Is the 6-146278-4 available in the same packaging as the 1-103327-4?

A: The 6-146278-4 is supplied in bulk packaging. If specific packaging requirements exist for your application, consult with your supplier regarding available packaging options and minimum order quantities.

Q: Does the RoHS compliance difference affect compatibility?

A: The 6-146278-4 is RoHS compliant while the 1-103327-4 is not. For applications subject to RoHS regulations or customer requirements, the 6-146278-4 is the required choice. For legacy systems without RoHS mandates, both parts are functionally compatible.

Q: Are there any thermal performance differences between these connectors?

A: Both connectors operate across the identical temperature range of -65°C ~ 105°C. The LCP insulation material in the 6-146278-4 provides improved dimensional stability at elevated temperatures compared to the thermoplastic material in the 1-103327-4, making it preferable for applications consistently operating near 105°C.