Amphenol ICC 76342-425 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 76342-425 is a 50-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 classified as 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	50
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 76342-425 is based on maintaining electrical and mechanical compatibility across the following critical parameters:

Connector Type & Position Count: Both main and substitute parts are 50-position receptacles, ensuring pin-to-pin compatibility
Pitch & Row Configuration: Identical 0.100" (2.54mm) mating pitch and 2-row layout guarantee mechanical fit with mating plugs
Mounting & Termination: Through-hole solder termination is preserved, allowing direct PCB integration without redesign
Fastening & Contact Geometry: Push-pull fastening and square contact shape remain consistent
Insulation & Flammability: Both parts use thermoplastic glass-filled insulation with UL94 V-0 rating
Series Compatibility: Both parts belong to the Dubox™ series

The primary difference between the main part and substitute is the contact finish specification: the main part uses tin-lead finish, while the substitute uses tin finish only. This distinction reflects regulatory compliance evolution rather than functional incompatibility.

Parameter Comparison

Parameter	76342-425 (Main Part)	76342-425LF (Substitute)
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Series	Dubox™	Dubox™
Product Status	Obsolete	Active
Connector Type	Receptacle	Receptacle
Number of Positions	50	50
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 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
Contact Finish Thickness - Post	78.7µin (2.00µm)	78.7µin (2.00µm)
Base Product Number	76342	76342
RoHS Status	RoHS non-compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Affected
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

The 76342-425LF serves as the direct substitute for the obsolete 76342-425. Selection between these parts is determined by regulatory and compliance requirements:

Use 76342-425LF when:

New designs or production runs require RoHS compliance
REACH compliance is mandated by application or regional requirements
Active product availability is required for supply chain continuity

Use 76342-425 when:

Legacy system maintenance requires exact original part matching
Existing inventory stock is available and acceptable for the application
RoHS exemptions apply to the specific use case

Both parts maintain identical mechanical and electrical interfaces, ensuring direct substitution without PCB redesign or connector mating interface changes. The transition from tin-lead to tin contact finish reflects industry-wide compliance evolution while preserving connector performance characteristics.

Frequently Asked Questions (FAQ)

Q: Are the 76342-425 and 76342-425LF mechanically interchangeable?

A: Yes. Both connectors share identical pitch (0.100"), row spacing (0.100"), number of positions (50), mounting type (through-hole), and fastening mechanism (push-pull). They mate with the same plug connectors and occupy identical PCB footprints.

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

A: The 76342-425 uses tin-lead contact finish, while the 76342-425LF uses tin-only finish. Both maintain the same contact finish thickness (78.7µin / 2.00µm) and are applied to both mating and post surfaces. The tin-only finish reflects RoHS compliance requirements.

Q: Can I use the 76342-425LF as a direct replacement for the 76342-425 in existing designs?

A: Yes, the 76342-425LF is a direct substitute. No PCB layout changes, connector orientation adjustments, or mating interface modifications are required. The parts are functionally equivalent for board-to-board interconnect applications.

Q: Why is the 76342-425 listed as obsolete?

A: The 76342-425 is obsolete due to regulatory compliance transitions. The 76342-425LF represents the current active product offering from Amphenol ICC for this connector family, incorporating RoHS and REACH compliance.

Q: What packaging is available for the 76342-425LF?

A: The 76342-425LF is supplied in tube packaging, as specified in the product documentation.

Q: Are both parts rated for the same flammability standard?

A: Yes. Both the 76342-425 and 76342-425LF are rated UL94 V-0, indicating equivalent flame-retardant performance in the insulation material.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

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