Amphenol ICC 76342-434 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 76342-434 is a 68-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 essential for ongoing system support and procurement planning.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	68
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
Material Flammability Rating	UL94 V-0
Series	Dubox™
Insulation Material	Thermoplastic, Glass Filled

Substitute Part Grouping Explanation

Substitution eligibility for the 76342-434 is determined by strict equivalence across the following critical parameters:

Connector configuration: 68 positions, 2 rows, 0.100" pitch (both mating and row spacing)
Mechanical interface: Through-hole mounting, push-pull fastening, board-to-board style
Electrical termination: Solder termination with matching contact geometry
Material and safety compliance: UL94 V-0 flammability rating, thermoplastic glass-filled insulation
Contact specifications: Square contact shape, phosphor bronze material, matching post length (0.114")

The substitute part 76342-434LF maintains identical mechanical and electrical interfaces. The primary difference is the contact finish specification: the substitute uses tin finish instead of tin-lead finish, and carries active product status with RoHS compliance.

Parameter Comparison

Parameter	76342-434 (Main Part)	76342-434LF (Substitute)
Connector Type	Receptacle	Receptacle
Number of Positions	68	68
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)
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The 76342-434LF serves as the direct substitute for the obsolete 76342-434. Both parts share identical mechanical and electrical interface specifications, ensuring pin-for-pin compatibility in board-to-board applications.

The 76342-434LF is the preferred selection for new designs and ongoing procurement due to its active product status. The contact finish change from tin-lead to tin reflects current manufacturing standards and regulatory compliance. The 76342-434LF carries RoHS compliance certification, whereas the original part does not.

For legacy systems currently using the 76342-434, the 76342-434LF provides functional equivalence without requiring PCB redesign or connector interface modifications.

Frequently Asked Questions (FAQ)

Q: Are the 76342-434 and 76342-434LF mechanically interchangeable?

A: Yes. Both connectors maintain identical pitch (0.100"), position count (68), row configuration (2 rows), mounting type (through-hole), and fastening mechanism (push-pull). Physical dimensions and mating interfaces are equivalent.

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

A: The 76342-434 uses tin-lead contact finish on both mating and post surfaces. The 76342-434LF uses tin finish. Both maintain the same contact finish thickness (78.7µin / 2.00µm) and are applied to the same phosphor bronze contact material. The finish difference reflects manufacturing process updates and regulatory compliance requirements.

Q: Does the contact finish change affect electrical performance?

A: Both finishes provide equivalent electrical conductivity and contact resistance characteristics for this connector class. The finish thickness specification is identical between parts.

Q: Why is the 76342-434 classified as obsolete?

A: The 76342-434 has been superseded by the 76342-434LF, which offers active product status and RoHS compliance. Amphenol ICC maintains the 76342-434LF as the current production equivalent.

Q: What is the packaging difference between these parts?

A: The 76342-434 packaging specification is not provided. The 76342-434LF is supplied in tube packaging.

Q: Are both parts rated for the same applications?

A: Yes. Both connectors are specified for automotive, general purpose, industrial, and telecommunications applications with UL94 V-0 flammability rating.

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

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

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