TE Connectivity AMP Connectors 2-104427-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 2-104427-3 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical orientation with 25 positions at 0.100" (2.54mm) pitch, supporting board-to-board or cable connections. The part is classified as obsolete, making identification of equivalent substitute components essential for ongoing design support, maintenance, and production continuity. Substitute parts must maintain electrical and mechanical compatibility while meeting current manufacturing and compliance standards.

Substiute Parts

2-104427-3

TE Connectivity AMP ConnectorsIn Stock: 10322-104427-3 Datasheet

Current PartRFQ

77311-122-25LF

Amphenol ICC (FCI)In Stock: 93477311-122-25LF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute compatibility for the TE Connectivity 2-104427-3 is determined by the following critical parameters:

Electrical Compatibility Parameters:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly for mechanical interchangeability
• Number of Positions: 25 — connector density must be identical
• Contact Type: Male Pin — gender must remain consistent
• Current Rating: 3A minimum — substitute must support equivalent or higher current capacity
• Voltage Rating: 30VAC minimum — substitute must support equivalent or higher voltage
• Contact Finish - Mating: Gold — ensures equivalent signal integrity and corrosion resistance

Mechanical Compatibility Parameters:

• Mounting Type: Through Hole — PCB mounting method must remain unchanged
• Connector Type: Header — functional form factor must be maintained
• Shrouding: Unshrouded — physical envelope and board clearance requirements
• Material Flammability Rating: UL94 V-0 — safety compliance must be maintained or exceeded

Environmental Parameters:

• Operating Temperature Range: -65°C ~ 105°C minimum — substitute must support this range or broader
• Moisture Sensitivity Level: 1 (Unlimited) — handling and storage requirements

The substitute part 77311-122-25LF meets all critical electrical and mechanical parameters required for direct substitution in applications currently using the TE Connectivity 2-104427-3.

Parameter Comparison

Engineering Selection Recommendations

The Amphenol ICC 77311-122-25LF is a direct functional substitute for the obsolete TE Connectivity 2-104427-3. Selection of the substitute part is supported by the following engineering factors:

Product Status Justification: The TE Connectivity 2-104427-3 is classified as obsolete, creating supply chain risk for new production and field replacements. The Amphenol ICC 77311-122-25LF maintains active production status with confirmed inventory availability (828 pieces in stock), ensuring long-term component availability.

Electrical Compatibility: Both connectors maintain identical pitch (0.100" / 2.54mm), position count (25), contact type (male pin), and current rating (3A). Contact finish specifications are compatible, with the substitute providing enhanced gold plating thickness (30.0µin versus 15.0µin), improving contact durability and signal integrity.

Mechanical Compatibility: Through-hole mounting type, unshrouded design, and square contact geometry are identical between the main part and substitute. Contact post length (0.120" / 3.05mm) is identical. Mating contact length differs by 0.013" (0.33mm), which remains within acceptable tolerance for standard connector applications. Insulation height of the substitute (0.100" / 2.54mm) is slightly greater than the main part (0.090" / 2.29mm), requiring verification of board clearance in space-constrained layouts.

Compliance and Environmental Performance: Both connectors meet UL94 V-0 flammability requirements. The substitute operates across -65°C to 125°C, exceeding the main part's -65°C to 105°C range. Both maintain MSL 1 (Unlimited) moisture sensitivity classification. The substitute achieves RoHS compliance, addressing current regulatory requirements, whereas the main part is RoHS non-compliant.

Termination Compatibility: The main part supports both press-fit and solder termination; the substitute supports solder termination only. For applications utilizing solder attachment, this presents no functional limitation. Applications requiring press-fit termination must evaluate alternative substitutes or retain the original part if available.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol ICC 77311-122-25LF be used as a direct replacement for the TE Connectivity 2-104427-3 in existing designs?

A: Yes, for applications using solder termination. The substitute maintains identical pitch (0.100" / 2.54mm), position count (25), contact type (male pin), current rating (3A), and mounting type (through-hole). Verify board clearance for the slightly increased insulation height (0.100" versus 0.090"). Applications requiring press-fit termination must evaluate alternative solutions.

Q: What are the key electrical differences between these connectors?

A: Both connectors support 3A current rating and identical pitch/position specifications. The main part specifies 30VAC voltage rating; the substitute does not provide a voltage specification in the available data. Contact finish thickness on the substitute (30.0µin) exceeds the main part (15.0µin), providing enhanced durability. Contact material differs (copper alloy versus phosphor bronze), but both materials provide equivalent electrical performance for standard applications.

Q: Are there mechanical compatibility concerns with the substitute?

A: The substitute's insulation height is 0.010" (0.254mm) greater than the main part. Verify available board clearance above the connector to ensure no interference with adjacent components or enclosure features. Mating contact length differs by 0.013" (0.33mm), which remains within standard tolerance for connector applications. All other mechanical parameters are identical or compatible.

Q: What compliance advantages does the substitute provide?

A: The Amphenol ICC 77311-122-25LF is RoHS compliant, whereas the TE Connectivity 2-104427-3 is RoHS non-compliant. The substitute is REACH affected, indicating compliance with current European chemical regulations. Both connectors maintain identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications. For new designs or products subject to RoHS requirements, the substitute is the appropriate selection.

Q: Is the substitute available for immediate use?

A: Yes. The Amphenol ICC 77311-122-25LF maintains active production status with 828 pieces confirmed in stock. The TE Connectivity 2-104427-3 is obsolete with limited remaining inventory (1008 pieces). For new production and long-term supply assurance, the substitute is the recommended selection.

Q: What is the operating temperature difference between these connectors?

A: The TE Connectivity 2-104427-3 operates from -65°C to 105°C. The Amphenol ICC 77311-122-25LF operates from -65°C to 125°C, providing an additional 20°C upper temperature margin. For applications operating near the upper temperature limit of the original part, the substitute provides enhanced thermal headroom.

Q: Are there any termination method limitations with the substitute?

A: The TE Connectivity 2-104427-3 supports both press-fit and solder termination. The Amphenol ICC 77311-122-25LF supports solder termination only. For designs utilizing solder attachment, this presents no limitation. Applications requiring press-fit termination must identify alternative substitute parts or evaluate design modifications to accommodate solder termination.

Q: How do the contact finish specifications compare?

A: Both connectors feature gold-plated mating contacts. The substitute provides 30.0µin (0.76µm) gold thickness compared to 15.0µin (0.38µm) on the main part, doubling the plating thickness. This enhanced finish improves contact durability and corrosion resistance. Post contact finish differs (tin-lead versus tin), but both provide equivalent solder compatibility and electrical performance.