Amphenol ICC 78299-604 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 78299-604 is a through-hole, right-angle rectangular connector header with 4 positions at 2.54mm pitch, designed for board-to-board applications. This BERGSTIK® II series component features male pins with press-fit and solder termination options. The part is currently active in production with 1086 units in stock. Substitute parts may be required due to supply constraints, design revisions, or specific application requirements that demand alternative mechanical or electrical characteristics.

Substiute Parts

78299-604

Amphenol ICC (FCI)In Stock: 109978299-604 Datasheet

Current PartRFQ

826634-2

TE Connectivity AMP ConnectorsIn Stock: 743826634-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 78299-604 is based on the following critical parameters that must remain consistent:

• Pitch - Mating: 0.100" (2.54mm) — determines mechanical compatibility with mating connectors
• Number of Positions: 4 — defines circuit connectivity requirements
• Number of Rows: 2 — establishes physical layout and spacing
• Mounting Type: Through Hole, Right Angle — ensures PCB assembly compatibility
• Connector Type: Header with Male Pins — maintains electrical interface
• Fastening Type: Push-Pull — preserves mating mechanism
• Contact Shape: Square — ensures proper contact engagement

The substitute part TE Connectivity AMP Connectors 826634-2 meets all critical substitution criteria. Both parts share identical pitch, position count, row configuration, mounting orientation, and contact type. Variations in contact material (Phosphor Bronze vs. Brass), contact finish specifications, insulation material, and compliance certifications are secondary parameters that do not prevent functional substitution in applications where these differences are acceptable.

Parameter Comparison

Engineering Selection Recommendations

Both the Amphenol ICC 78299-604 and TE Connectivity 826634-2 are active production parts with identical core mechanical and electrical specifications for pitch, position count, row configuration, and mounting orientation. Selection between these parts should be based on the following factors:

RoHS Compliance: The 826634-2 is RoHS compliant, while the 78299-604 is RoHS non-compliant. Applications subject to RoHS regulations must use the 826634-2.

Product Status: Both parts maintain active production status, ensuring continued availability and supply chain stability.

Flammability Certification: Both parts meet UL94 V-0 material flammability requirements, suitable for applications requiring flame-resistant components.

Moisture Sensitivity: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints during storage or handling.

Contact Finish Specifications: The 78299-604 provides thicker gold plating (30.0µin) compared to the 826634-2 (3.90µin). Applications requiring enhanced corrosion resistance or extended contact life may benefit from the thicker finish of the 78299-604.

Mechanical Dimensions: The 826634-2 exhibits slightly larger contact lengths and insulation height. PCB layout and mating connector clearances must accommodate these dimensional differences.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 826634-2 directly replace the Amphenol ICC 78299-604 in existing designs?

A: Direct replacement is mechanically and electrically feasible due to identical pitch (2.54mm), position count (4), row configuration (2), and mounting type (through-hole, right-angle). However, dimensional variations in contact length and insulation height require PCB layout verification. The thinner gold plating on the 826634-2 may affect long-term contact reliability in high-cycle mating applications.

Q: What is the significance of the RoHS compliance difference between these parts?

A: The 826634-2 is RoHS compliant, meeting EU Directive 2011/65/EU restrictions on hazardous substances. The 78299-604 is RoHS non-compliant. Applications destined for markets with RoHS requirements must use the 826634-2. Non-regulated applications may use either part based on other selection criteria.

Q: Are there differences in termination methods between these parts?

A: The 78299-604 supports both press-fit and solder termination, while the 826634-2 supports solder termination only. Applications requiring press-fit assembly must use the 78299-604. Solder-only applications may use either part.

Q: How do the contact materials differ, and does this affect performance?

A: The 78299-604 uses phosphor bronze contacts, while the 826634-2 uses brass contacts. Both materials provide adequate electrical conductivity and mechanical durability for standard applications. Phosphor bronze offers superior spring properties and fatigue resistance in high-cycle mating scenarios. Brass provides cost efficiency and adequate performance for standard-cycle applications.

Q: What is the impact of the contact finish thickness difference?

A: The 78299-604 provides 30.0µin (0.76µm) gold plating versus 3.90µin (0.099µm) on the 826634-2. Thicker plating extends contact life in corrosive environments and high-cycle mating applications. Standard indoor applications tolerate thinner plating. Environmental exposure and mating cycle frequency should guide selection.

Q: Are these parts compatible with the same mating connectors?

A: Both parts feature identical 2.54mm pitch, square contact shape, and push-pull fastening. Mating connectors designed for standard 2.54mm pitch headers are compatible with both parts. Verify mating connector specifications for contact length and insulation height compatibility, as dimensional variations may affect engagement force and contact reliability.

Q: What inventory considerations should influence part selection?

A: The 78299-604 has 1086 units in stock, while the 826634-2 has 721 units available. For immediate procurement, the 78299-604 offers greater availability. Long-term supply planning should account for both manufacturers' production capacity and lead times.