Amphenol ICC 87409-125 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 87409-125 is a surface mount rectangular connector header with 50 positions at 1.27mm pitch, designed for board-to-board applications. This component features shrouded 4-wall construction with push-pull fastening and is rated for general purpose and military applications across an operating temperature range of -55°C to 130°C. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

87409-125

Amphenol ICC (FCI)In Stock: 93887409-125 Datasheet

Current PartRFQ

87409-125LF

Amphenol ICC (FCI)In Stock: 83687409-125LF Datasheet

DirectRFQ

104655-6

TE Connectivity AMP ConnectorsIn Stock: 764104655-6 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 87409-125 is determined by strict alignment with the following critical parameters:

Primary Substitution Criteria:

• Number of positions: 50
• Pitch spacing: 0.050" (1.27mm)
• Connector type: Header with male pins
• Mounting type: Surface mount
• Style: Board to board
• Shrouding: Shrouded 4-wall construction
• Fastening type: Push-pull mechanism
• Termination: Solder
• Material flammability: UL94 V-0

Identified Substitutes:

1. 87409-125LF (Amphenol ICC) - Direct manufacturer variant with identical electrical and mechanical specifications. Differs only in RoHS compliance status (compliant vs. non-compliant) and contact finish post material (tin vs. tin-lead).

2. 104655-6 (TE Connectivity AMP Connectors) - Cross-manufacturer equivalent meeting all primary substitution criteria. Belongs to AMPMODU 50/50 Grid series. Maintains identical position count, pitch, and board-to-board configuration. Variations exist in contact shape (circular vs. square), insulation material (LCP vs. thermoplastic glass-filled), and current rating per contact (0.5A vs. 1A).

Parameter Comparison

Engineering Selection Recommendations

87409-125LF (Amphenol ICC) is the primary substitute for the obsolete 87409-125. This variant maintains identical electrical and mechanical specifications while offering active product status and RoHS compliance. The transition from tin-lead to tin contact finish on the post does not affect functional compatibility. This option preserves the original Rib-Cage™ III series design and is recommended for applications requiring direct form-fit-function replacement with improved regulatory compliance.

104655-6 (TE Connectivity AMP Connectors) serves as a cross-manufacturer alternative when supply constraints or design flexibility permit. This part meets all primary substitution criteria and maintains active product status. The reduced current rating per contact (0.5A vs. 1A) requires evaluation against system power distribution requirements. The circular contact geometry and LCP insulation material represent design variations that may affect mechanical fit and thermal performance in specific applications. The operating temperature upper limit of 105°C is lower than the original specification of 130°C and must be considered for high-temperature environments.

Frequently Asked Questions (FAQ)

Q: Can 87409-125LF be used as a direct replacement for 87409-125?

A: Yes. The 87409-125LF maintains identical electrical and mechanical specifications including pitch, position count, current rating, operating temperature range, and shrouding configuration. The primary differences are product status (active vs. obsolete) and RoHS compliance. The contact finish post material change from tin-lead to tin does not affect functional compatibility.

Q: What are the key differences between 87409-125 and 104655-6?

A: Both parts share identical pitch (1.27mm), position count (50), mounting type (surface mount), and shrouding (4-wall). The 104655-6 differs in current rating per contact (0.5A vs. 1A), operating temperature maximum (105°C vs. 130°C), contact shape (circular vs. square), and insulation material (LCP vs. thermoplastic glass-filled). These differences require application-specific evaluation.

Q: Is the 104655-6 suitable for military applications?

A: The 104655-6 is rated for military applications according to the provided specifications. However, the reduced operating temperature maximum (105°C vs. 130°C) and lower current rating per contact (0.5A vs. 1A) must be evaluated against specific military system requirements.

Q: What is the impact of the contact shape difference between 87409-125 and 104655-6?

A: The 87409-125 uses square contacts while the 104655-6 uses circular contacts. This geometric difference may affect mating force, contact pressure distribution, and mechanical fit with mating connectors. Compatibility must be verified with the corresponding receptacle connector design.

Q: Are there packaging differences between the substitute parts?

A: The 87409-125 is supplied without specified packaging, while both 87409-125LF and 104655-6 are supplied in tube packaging. This affects handling, storage, and automated assembly processes.

Q: Which substitute is recommended for new designs?

A: For new designs, 87409-125LF is recommended as the primary choice due to identical specifications and active product status. The 104655-6 may be considered if cross-manufacturer sourcing or specific design requirements justify the parameter variations.