TE Connectivity 4-102972-0 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 4-102972-0 is a vertical rectangular connector header from the AMPMODU Mod II series, designed for through-hole board-to-board or cable applications. This 40-position connector operates at 0.100" (2.54mm) pitch with male pin contacts and solder termination. The part is classified as obsolete, necessitating identification of active equivalent components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

4-102972-0

TE Connectivity AMP ConnectorsIn Stock: 15504-102972-0 Datasheet

Current PartRFQ

9-146276-0

TE Connectivity AMP ConnectorsIn Stock: 7379-146276-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 4-102972-0 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Pitch - Mating: 0.100" (2.54mm)
• Number of Positions: 40
• Contact Type: Male Pin
• Current Rating: 3A
• Operating Temperature Range: -65°C ~ 105°C

Mechanical Compatibility Parameters:

• Connector Type: Header, Breakaway
• Mounting Type: Through Hole
• Termination: Solder
• Number of Rows: 1
• Contact Shape: Square

Physical Compatibility Parameters:

• Contact Length - Mating: 0.318" (8.08mm)
• Contact Length - Post: 0.125" (3.18mm)
• Overall Contact Length: 0.533" (13.55mm)
• Insulation Height: 0.090" (2.29mm)

The substitute part 9-146276-0 maintains full equivalence across all critical electrical, mechanical, and physical parameters. Variations in insulation material composition and contact finish post material do not affect functional interchangeability within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 9-146276-0 is the direct functional equivalent for the obsolete 4-102972-0. Both components share identical electrical ratings, mechanical dimensions, and contact specifications within the AMPMODU Mod II series.

Product Status Consideration: The 4-102972-0 is classified as obsolete, while the 9-146276-0 maintains active product status with current manufacturing availability. Selection of the 9-146276-0 ensures access to ongoing supply and technical support.

Compliance Advantage: The 9-146276-0 carries ROHS3 compliance certification and REACH unaffected status, providing regulatory alignment for applications subject to environmental and hazardous substance restrictions. The original 4-102972-0 lists RoHS status as not applicable, reflecting its obsolete classification.

Material Specification Difference: The substitute part incorporates Liquid Crystal Polymer (LCP) insulation material in place of the original thermoplastic composition. LCP provides enhanced thermal stability and dimensional consistency while maintaining the same electrical performance and flammability rating (UL94 V-0).

Contact Finish Modification: The post contact finish transitions from Tin-Lead to Tin in the substitute part. This change aligns with lead-free manufacturing standards and does not affect electrical or mechanical interchangeability within the specified operating parameters.

Both parts are classified as Moisture Sensitivity Level 1 (Unlimited) and carry identical ECCN and HTSUS classifications for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can the 9-146276-0 directly replace the 4-102972-0 in existing designs?

A: Yes. The 9-146276-0 maintains full electrical and mechanical compatibility with the 4-102972-0. All critical parameters including pitch, position count, contact type, current rating, and operating temperature range are identical. The components are interchangeable at the board level.

Q: What is the significance of the insulation material change from thermoplastic to LCP?

A: Liquid Crystal Polymer (LCP) provides superior dimensional stability and thermal performance compared to standard thermoplastic. This material upgrade enhances long-term reliability without altering electrical characteristics or mechanical fit. Both materials achieve the same UL94 V-0 flammability rating.

Q: Does the Tin-Lead to Tin contact finish change affect performance?

A: No. The transition to Tin-only post finish reflects lead-free manufacturing standards and does not impact electrical conductivity or mechanical function. Both finishes provide equivalent contact resistance and durability within the specified operating parameters.

Q: Why is the 4-102972-0 listed as obsolete?

A: The 4-102972-0 has been superseded by the 9-146276-0 within the AMPMODU Mod II product line. TE Connectivity has transitioned manufacturing to the newer part number, which incorporates improved materials and compliance certifications.

Q: Are there inventory considerations when selecting between these parts?

A: The 4-102972-0 shows 1530 pieces in stock, while the 9-146276-0 shows 702 pieces in stock. For new designs and ongoing production, the 9-146276-0 is recommended due to its active product status and compliance certifications. The 4-102972-0 inventory may be suitable for legacy system repairs where original part specifications are required.

Q: What is the difference in RoHS and REACH compliance between these parts?

A: The 9-146276-0 carries ROHS3 compliance and REACH unaffected status, meeting current environmental regulations. The 4-102972-0 lists RoHS status as not applicable, reflecting its obsolete classification prior to widespread adoption of these standards. For applications subject to environmental compliance requirements, the 9-146276-0 is the appropriate selection.

Q: Are the physical dimensions identical between both parts?

A: Yes. Contact length specifications, insulation height, and overall connector dimensions are identical. Both parts maintain the same 0.100" (2.54mm) pitch and 40-position configuration, ensuring mechanical compatibility with existing PCB layouts and mating connectors.

Q: What is the current rating for both connectors?

A: Both the 4-102972-0 and 9-146276-0 are rated for 3A per contact. This specification applies across all 40 positions and remains constant across the operating temperature range of -65°C to 105°C.