Amphenol ICC 76342-420 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 76342-420 is a 40-position receptacle connector with 0.100" (2.54mm) pitch, designed for board-to-board applications in automotive, industrial, telecommunications, and general purpose environments. This connector features through-hole solder termination with push-pull fastening and tin-lead contact finish.

The 76342-420 carries an obsolete product status. Locating equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	40
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 Type	Female Socket
Style	Board to Board
Insulation Material	Thermoplastic, Glass Filled
Material Flammability Rating	UL94 V-0
Mated Stacking Heights	11.04mm
Contact Shape	Square
Contact Material	Phosphor Bronze
Insulation Color	Blue
Insulation Height	0.275" (6.99mm)
Contact Length - Post	0.114" (2.90mm)
Series	Dubox™

Substitute Part Grouping Explanation

Substitution of the 76342-420 is determined by strict equivalence across the following critical parameters:

Connector type (Receptacle)
Number of positions (40)
Pitch and row spacing (0.100" / 2.54mm)
Mounting method (Through Hole)
Termination type (Solder)
Fastening mechanism (Push-Pull)
Contact configuration (Female Socket, Square, Phosphor Bronze)
Physical dimensions (Insulation height, contact length, mated stacking height)
Insulation material and flammability rating (Thermoplastic Glass Filled, UL94 V-0)
Series designation (Dubox™)

The 76342-420LF qualifies as a direct substitute based on full alignment with these parameters. The primary difference is the contact finish specification: the original part uses tin-lead finish, while the substitute uses tin finish only.

Parameter Comparison

Parameter	76342-420 (Original)	76342-420LF (Substitute)
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Connector Type	Receptacle	Receptacle
Number of Positions	40	40
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
Style	Board to Board	Board to Board
Contact Finish - Mating	Tin-Lead	Tin
Contact Finish - Post	Tin-Lead	Tin
Contact Finish Thickness - Mating	78.7µin (2.00µm)	78.7µin (2.00µm)
Contact Finish Thickness - Post	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
Insulation Material	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled
Contact Shape	Square	Square
Contact Material	Phosphor Bronze	Phosphor Bronze
Mated Stacking Heights	11.04mm	11.04mm
Series	Dubox™	Dubox™
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	RoHS Compliant
REACH Status	REACH Unaffected	REACH Affected
Packaging	-	Tube

Engineering Selection Recommendations

The 76342-420LF is the direct substitute for the obsolete 76342-420. Both connectors maintain identical mechanical and electrical interface specifications, ensuring pin-for-pin compatibility in board-to-board applications.

The 76342-420LF offers the advantage of active product status, ensuring continued availability and supply chain reliability. The shift from tin-lead to tin contact finish aligns with RoHS compliance requirements, making the 76342-420LF suitable for applications subject to RoHS regulations. The 76342-420LF is classified as REACH Affected, whereas the original part is REACH Unaffected.

For applications requiring RoHS compliance or operating under modern regulatory frameworks, the 76342-420LF is the appropriate selection. For legacy systems or applications with specific tin-lead requirements, the original 76342-420 remains available in current inventory.

Frequently Asked Questions (FAQ)

Q: Are the 76342-420 and 76342-420LF mechanically interchangeable?

A: Yes. Both connectors share identical mechanical dimensions, mounting specifications, and board-to-board interface geometry. They are pin-for-pin compatible.

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

A: The 76342-420 uses tin-lead plating on both mating and post contacts. The 76342-420LF uses tin plating only. Both maintain the same contact finish thickness of 78.7µin (2.00µm). The tin finish in the 76342-420LF supports RoHS compliance.

Q: Can I use the 76342-420LF as a replacement for the 76342-420 in existing designs?

A: Yes, provided your application does not have explicit requirements for tin-lead contact finish. The 76342-420LF is electrically and mechanically equivalent and is the recommended choice for new designs and production runs.

Q: What is the significance of the "LF" designation in the part number?

A: The "LF" suffix indicates lead-free compliance, reflecting the tin contact finish and RoHS compliance status of the 76342-420LF.

Q: Are there packaging differences between these parts?

A: The 76342-420 packaging is not specified. The 76342-420LF is supplied in tube packaging.

Q: What is the product status difference, and why does it matter?

A: The 76342-420 is classified as obsolete, indicating it is no longer in active production. The 76342-420LF is active, ensuring ongoing availability and support. For new designs and production, the active part number is the appropriate selection.

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