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

Part Overview

The Amphenol ICC 78299-604H is a through-hole, right-angle rectangular connector header designed for board-to-board applications. This 4-position header operates at 0.100" (2.54mm) pitch and features male pin contacts with gold-plated mating surfaces. The component is currently active in production with 1,060 units in stock. Substitute parts may be required due to inventory constraints, design revisions, or supply chain considerations while maintaining electrical and mechanical compatibility.

Substiute Parts

78299-604H

Amphenol ICC (FCI)In Stock: 116978299-604H Datasheet

Current PartRFQ

826634-2

TE Connectivity AMP ConnectorsIn Stock: 743826634-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 78299-604H is determined by strict alignment with the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) - exact match required
• Number of Positions: 4 - exact match required
• Number of Rows: 2 - exact match required
• Row Spacing - Mating: 0.100" (2.54mm) - exact match required
• Mounting Type: Through Hole, Right Angle - exact match required
• Contact Type: Male Pin - exact match required
• Style: Board to Board or Board to Board/Cable compatible - acceptable
• Shrouding: Unshrouded - exact match required
• Contact Shape: Square - exact match required
• Material Flammability Rating: UL94 V-0 - minimum requirement

The TE Connectivity AMP Connectors 826634-2 meets all critical substitution criteria. This part maintains identical mating pitch, position count, row configuration, and mounting orientation. Both components feature unshrouded, square male pin contacts suitable for through-hole assembly. The 826634-2 supports board-to-board or cable applications, providing equivalent or enhanced functionality compared to the original specification.

Parameter Comparison

Engineering Selection Recommendations

Both the 78299-604H and 826634-2 are active production components with identical core electrical and mechanical specifications for board-to-board header applications at 2.54mm pitch. Selection between these parts should be based on the following factors:

The 78299-604H remains the primary choice for existing designs and applications where the original specification is established. The component is currently in stock with 1,060 units available.

The 826634-2 serves as a qualified substitute when inventory of the primary part is unavailable or when design flexibility permits. This part offers RoHS compliance, which may be required for certain applications or regulatory environments. The 826634-2 provides documented operating temperature range (-65°C ~ 105°C) and current rating (5A), offering additional specification clarity for thermal and power considerations. The breakaway feature of the 826634-2 provides design flexibility for both board-to-board and cable applications.

Both components meet UL94 V-0 flammability requirements and feature unlimited moisture sensitivity classification. Physical dimensions show minor variations in contact length and insulation height; these differences remain within acceptable tolerances for standard 2.54mm pitch header applications.

Frequently Asked Questions (FAQ)

Q: Can the 826634-2 be used as a direct replacement for the 78299-604H in existing PCB designs?

A: Yes. Both parts share identical mating pitch (0.100" / 2.54mm), position count (4), row configuration (2 rows), and through-hole right-angle mounting. The contact geometry and electrical interface are compatible. Minor dimensional variations in contact length and insulation height do not affect mechanical fit or electrical performance in standard applications.

Q: What is the primary difference between these two connector headers?

A: The 826634-2 offers RoHS compliance and documented operating temperature range (-65°C ~ 105°C) and current rating (5A), whereas the 78299-604H does not specify these parameters. The 826634-2 also supports cable applications in addition to board-to-board configurations. Contact material differs (Brass vs. Phosphor Bronze) and insulation material varies (PBT vs. PCT), but both meet UL94 V-0 flammability standards.

Q: Are there any compatibility concerns with the different insulation materials?

A: No. Both Polycyclohexylenedimethylene Terephthalate (PCT) and Polybutylene Terephthalate (PBT) are standard insulation materials for rectangular connectors in this category. Both materials meet UL94 V-0 flammability requirements and provide equivalent performance in board-to-board header applications.

Q: Does the RoHS compliance status affect substitution eligibility?

A: RoHS compliance is a regulatory and supply chain consideration, not an electrical or mechanical compatibility factor. The 826634-2 is RoHS compliant, while the 78299-604H is not. Selection should reflect the regulatory requirements of the end application and target market.

Q: What is the significance of the breakaway feature on the 826634-2?

A: The breakaway feature allows individual connector positions to be separated if required for specific assembly or application needs. This provides design flexibility but does not affect compatibility with standard board-to-board applications where the full 4-position header is used as a single unit.