Amphenol ICC 76342-409 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 76342-409 is an 18-position receptacle connector with 0.100" (2.54mm) pitch, designed for board-to-board applications. This connector features through-hole solder termination, tin-lead contact finish, and is rated UL94 V-0 for flammability. The part is currently obsolete, making identification of suitable substitutes necessary for ongoing system support and new designs requiring compatible interconnect solutions.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	18
Pitch - Mating	0.100" (2.54mm)
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Tin-Lead
Insulation Material	Thermoplastic, Glass Filled
Material Flammability Rating	UL94 V-0
Series	Dubox™

Substitute Part Grouping Explanation

Substitution for the 76342-409 is based on maintaining electrical and mechanical compatibility across the following critical parameters:

Connector Type & Position Count: Receptacle configuration with 18 positions must be preserved
Pitch & Spacing: 0.100" (2.54mm) mating pitch and row spacing ensure mechanical interchangeability
Mounting & Termination: Through-hole solder termination maintains PCB integration compatibility
Fastening & Contact Configuration: Push-pull fastening and female socket contacts must remain consistent
Insulation & Flammability: UL94 V-0 rated thermoplastic insulation material ensures safety compliance
Series Compatibility: Dubox™ series designation confirms form factor and interface compatibility

The substitute part 76342-409LF meets all these criteria while offering an active product status and improved compliance profile.

Parameter Comparison

Parameter	76342-409 (Main Part)	76342-409LF (Substitute)
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Series	Dubox™	Dubox™
Product Status	Obsolete	Active
Connector Type	Receptacle	Receptacle
Number of Positions	18	18
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	2	2
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Type	Female Socket	Female Socket
Contact Finish - Mating	Tin-Lead	Tin
Contact Finish Thickness - Mating	78.7µin (2.00µm)	78.7µin (2.00µm)
Insulation Color	Blue	Blue
Insulation Height	0.275" (6.99mm)	0.275" (6.99mm)
Contact Length - Post	0.114" (2.90mm)	0.114" (2.90mm)
Material Flammability Rating	UL94 V-0	UL94 V-0
Contact Finish - Post	Tin-Lead	Tin
Mated Stacking Heights	11.04mm	11.04mm
Insulation Material	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled
Contact Shape	Square	Square
Contact Material	Phosphor Bronze	Phosphor Bronze
RoHS Status	RoHS non-compliant	RoHS Compliant
REACH Status	REACH Unaffected	REACH Affected
Packaging	-	Tube

Engineering Selection Recommendations

The 76342-409LF is the direct substitute for the obsolete 76342-409. Both connectors maintain identical mechanical and electrical interfaces within the Dubox™ series. The primary distinction is the contact finish specification: the substitute uses tin plating instead of tin-lead plating on both mating and post surfaces.

The 76342-409LF offers active product status, ensuring continued availability and supply chain reliability. Additionally, the substitute achieves RoHS compliance, meeting current regulatory requirements for new designs and manufacturing processes. The REACH-affected status of the substitute reflects current environmental compliance frameworks.

Both parts share identical dimensional specifications, including insulation height, contact length, and mated stacking heights, confirming direct mechanical interchangeability. The UL94 V-0 flammability rating is maintained across both versions.

Frequently Asked Questions (FAQ)

Q: Are the 76342-409 and 76342-409LF mechanically interchangeable?

A: Yes. Both connectors share identical pitch (0.100"), row spacing (0.100"), mounting type (through-hole), insulation dimensions, and mated stacking heights (11.04mm). They are direct mechanical substitutes within the Dubox™ series.

Q: What is the difference between tin-lead and tin contact finishes?

A: The main part uses tin-lead plating, while the substitute uses tin plating. Both maintain the same contact finish thickness (78.7µin / 2.00µm) and are applied to both mating and post surfaces. The tin finish in the substitute reflects current manufacturing standards and RoHS compliance.

Q: Why is the main part obsolete?

A: The 76342-409 is listed as obsolete. The 76342-409LF represents the active continuation of this connector family, offering the same functionality with updated compliance certifications.

Q: Does the substitute meet RoHS requirements?

A: Yes. The 76342-409LF is RoHS compliant, whereas the original 76342-409 is RoHS non-compliant. This makes the substitute suitable for applications requiring RoHS certification.

Q: Are there packaging differences between these parts?

A: The main part packaging is not specified. The substitute is supplied in tube packaging, which is standard for this connector type.

Q: Can I use the 76342-409LF in existing designs that specified the 76342-409?

A: Yes. The electrical and mechanical compatibility is maintained. The primary consideration is the contact finish change from tin-lead to tin, which does not affect connector performance or mating characteristics.

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