Amphenol ICC 79258-172 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 79258-172 is a rectangular connector header, right-angle configuration, with 72 positions at 2.54mm pitch. This through-hole, board-to-board connector is part of the BERGSTIK® II series and is classified as obsolete. Due to its obsolete status and limited long-term availability, identifying equivalent substitute parts is necessary for ongoing design support, production continuity, and system maintenance.

Substiute Parts

79258-172

Amphenol ICC (FCI)In Stock: 82979258-172 Datasheet

Current PartRFQ

2372-5221-TG

3MIn Stock: 9842372-5221-TG Datasheet

MFR RecommendedRFQ

4-102979-0

TE Connectivity AMP ConnectorsIn Stock: 10624-102979-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 79258-172 is determined by the following critical parameters:

• Connector type: Header
• Contact type: Male pin
• Pitch: 0.100" (2.54mm)
• Row spacing: 0.100" (2.54mm)
• Mounting: Through hole, right angle
• Termination: Solder
• Fastening: Push-pull
• Flammability: UL94 V-0

The 3M 2372-5221-TG meets all core substitution criteria with identical pitch, row spacing, mounting configuration, and termination method. However, it accommodates 72 positions in a board-to-board or cable configuration, with active product status and improved thermal operating range.

The TE Connectivity 4-102979-0 provides functional equivalence with the same pitch, row spacing, and mounting type. This part accommodates 80 positions, exceeding the 72-position requirement. It is classified as active and offers an extended operating temperature range. The additional 8 positions may require design consideration but do not prevent substitution in applications where the connector footprint can accommodate the larger form factor.

Parameter Comparison

Engineering Selection Recommendations

The 3M 2372-5221-TG is the primary substitute for the Amphenol ICC 79258-172. Both connectors share identical position count (72), pitch (2.54mm), row spacing (2.54mm), mounting configuration (through-hole, right-angle), and termination method (solder). The 3M part is active and maintains UL94 V-0 flammability compliance. The primary design consideration is the increased insulation height (0.242" versus 0.190"), which may require PCB layout verification to ensure clearance compatibility.

The TE Connectivity 4-102979-0 serves as a secondary substitute option. This connector maintains all critical pitch and mounting parameters but accommodates 80 positions instead of 72. The additional 8 positions result in a larger overall form factor. This part is active, offers an extended operating temperature range (-65°C to 105°C), and maintains UL94 V-0 compliance. Selection of this part requires confirmation that the PCB footprint can accommodate the larger connector dimensions and that the additional positions do not conflict with existing circuit board layout.

Both substitute parts are active products with established supply chains, providing superior long-term availability compared to the obsolete 79258-172.

Frequently Asked Questions (FAQ)

Q: Can the 3M 2372-5221-TG directly replace the Amphenol ICC 79258-172 without PCB modification?

A: The 3M part maintains identical position count and pitch specifications. However, the increased insulation height (0.242" versus 0.190") requires verification of vertical clearance on the PCB. Horizontal footprint compatibility should be confirmed through dimensional drawings.

Q: Why is the TE Connectivity 4-102979-0 listed as a substitute if it has 80 positions instead of 72?

A: The 4-102979-0 meets all critical electrical and mechanical substitution criteria: identical pitch (2.54mm), row spacing (2.54mm), mounting type (through-hole, right-angle), and termination method (solder). The additional 8 positions do not prevent functional substitution in applications where the larger form factor is accommodated by the PCB design. Applications using fewer than 72 positions can utilize this connector without electrical impact.

Q: What are the key differences in contact material between these connectors?

A: The Amphenol ICC 79258-172 uses phosphor bronze contacts, while both substitute parts use copper alloy contacts. Both materials are suitable for 2.54mm pitch connectors with solder termination. Contact material selection does not prevent substitution.

Q: Are there compliance or certification differences between these parts?

A: All three connectors maintain UL94 V-0 flammability rating and MSL 1 (Unlimited) moisture sensitivity classification. The 3M and TE Connectivity parts are active products with established compliance documentation, whereas the Amphenol ICC part is obsolete. Both substitute parts are RoHS non-compliant, consistent with the original part.

Q: What is the impact of the different contact post lengths?

A: The Amphenol ICC 79258-172 has a contact post length of 0.120" (3.05mm), while both substitute parts have 0.110" (2.79mm) posts. This 0.010" difference is within typical PCB solder pad design tolerances and does not prevent substitution. Solder joint quality should be verified through standard assembly process validation.

Q: Can these connectors be used interchangeably in existing designs?

A: The 3M 2372-5221-TG is the closest functional equivalent and is recommended for direct substitution with dimensional verification. The TE Connectivity 4-102979-0 requires additional design review due to the increased position count and form factor. Both parts maintain electrical and mechanical compatibility with the original connector interface specifications.