Amphenol ICC 71609-428LF Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 71609-428LF is a 56-position receptacle connector featuring 0.100" (2.54mm) pitch, surface mount right-angle configuration, and tin contact finish. This connector is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production and field service applications.

Substiute Parts

71609-428LF

Amphenol ICC (FCI)In Stock: 82971609-428LF Datasheet

Current PartRFQ

71609-328LF

Amphenol ICC (FCI)In Stock: 115971609-328LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 71609-328LF qualifies as a direct substitute based on the following critical parameters that remain constant across both parts:

• Connector type: Receptacle
• Position count: 56 positions
• Mating pitch: 0.100" (2.54mm)
• Row configuration: 2 rows at 0.100" (2.54mm) spacing
• Mounting style: Surface mount, right angle
• Termination method: Solder
• Fastening mechanism: Push-pull
• Contact material: Phosphor bronze
• Insulation material: Thermoplastic, glass filled
• Flammability rating: UL94 V-0
• Series family: Dubox™

The primary difference between these parts is the contact finish specification: the 71609-428LF uses tin finish (78.7µin / 2.00µm), while the 71609-328LF uses gold finish (30.0µin / 0.76µm). Both finishes are applied to phosphor bronze contacts and maintain electrical and mechanical compatibility within the Dubox™ series.

Parameter Comparison

Engineering Selection Recommendations

The 71609-328LF is the active equivalent for the obsolete 71609-428LF. Selection between these parts should be based on the following criteria:

For new designs and production: The 71609-328LF is the recommended choice due to its active product status, RoHS compliance, and REACH compliance documentation. This part ensures long-term supply chain availability and regulatory alignment with current environmental standards.

For field service and legacy system maintenance: The 71609-428LF remains available in inventory (780 units) and maintains full mechanical and electrical compatibility with existing installations. The tin contact finish of the 71609-428LF is functionally equivalent to the gold finish of the 71609-328LF within the Dubox™ series specifications.

Contact finish consideration: The gold finish (71609-328LF) provides enhanced corrosion resistance compared to tin finish (71609-428LF). Both finishes are applied over phosphor bronze substrates and are suitable for automotive, general purpose, industrial, and telecommunications applications as specified.

Frequently Asked Questions (FAQ)

Q: Are the 71609-428LF and 71609-328LF mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including 56-position configuration, 0.100" (2.54mm) pitch, 2-row layout, surface mount right-angle mounting, and push-pull fastening. They are direct mechanical substitutes within the Dubox™ series.

Q: What is the functional difference between tin and gold contact finishes?

A: Both tin and gold finishes are applied to phosphor bronze contacts. Gold provides superior corrosion resistance and is preferred for high-reliability applications. Tin finish is suitable for general-purpose applications with adequate environmental protection. The choice depends on application requirements and environmental exposure.

Q: Can I use the 71609-328LF as a direct replacement for the 71609-428LF in existing designs?

A: Yes. The 71609-328LF is a direct substitute with identical electrical and mechanical specifications. The primary advantage is active product status and regulatory compliance (RoHS, REACH), making it suitable for both new production and field service applications.

Q: What is the significance of the obsolete status of the 71609-428LF?

A: Obsolete status indicates that Amphenol ICC has discontinued active production and support for this part. While inventory remains available, long-term supply cannot be guaranteed. The 71609-328LF is the active replacement and should be specified for new designs to ensure supply continuity.

Q: Are there packaging differences between these parts?

A: The 71609-328LF is supplied in tube packaging. Packaging specifications for the 71609-428LF are not provided in the technical data. Confirm packaging requirements with your procurement department when transitioning between these parts.

Q: Do both parts meet the same regulatory standards?

A: Both parts meet UL94 V-0 flammability requirements and share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications. The 71609-328LF includes documented RoHS compliance and REACH compliance status, while the 71609-428LF specifications do not include this documentation.