Amphenol ICC 71920-305 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 71920-305 is a 5-position receptacle connector from the Dubox™ series, designed for board-to-board applications with 0.100" (2.54mm) pitch through-hole mounting. This connector features gold-plated mating contacts and tin-plated posts with UL94 V-0 rated insulation material.

The 71920-305 is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this connector.

Substiute Parts

71920-305

Amphenol ICC (FCI)In Stock: 119971920-305 Datasheet

Current PartRFQ

71920-305LF

Amphenol ICC (FCI)In Stock: 123871920-305LF Datasheet

DirectRFQ

71991-302LF

Amphenol ICC (FCI)In Stock: 332971991-302LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 71920-305 is determined by the following critical parameters:

• Connector Type & Style: Receptacle, Bottom or Top Entry, Board to Board configuration
• Number of Positions: 5 positions with all positions loaded
• Pitch - Mating: 0.100" (2.54mm)
• Number of Rows: 1 row configuration
• Mounting Type: Through Hole with Solder termination
• Contact Finish: Gold mating surface with Tin post finish
• Insulation Material: Thermoplastic, Glass Filled with UL94 V-0 rating
• Series Compatibility: Dubox™ series

The substitute parts identified maintain compatibility with these core parameters while addressing the obsolete status of the original part.

Parameter Comparison

Engineering Selection Recommendations

71920-305LF is the primary direct substitute for the obsolete 71920-305. Both parts maintain identical electrical and mechanical specifications, including 5-position single-row configuration, 0.100" pitch, and gold/tin contact finishes. The 71920-305LF is currently in active production status with RoHS compliance and REACH affected designation, making it suitable for new designs and ongoing production support.

71991-302LF is a functional alternative with design modifications. This part reduces the position count to 4 and changes the row configuration to 2 rows with 0.100" row spacing. The 71991-302LF maintains the same pitch, contact finishes, and material specifications. Selection of this part requires PCB layout redesign to accommodate the dual-row configuration and reduced position count. This part is also RoHS compliant and actively produced.

For direct replacement without design modification, 71920-305LF is the appropriate selection. For applications where position count and row configuration can be adapted, 71991-302LF provides an alternative with active production status.

Frequently Asked Questions (FAQ)

Q: Can 71920-305LF be used as a direct replacement for 71920-305?

A: Yes. The 71920-305LF maintains identical electrical and mechanical parameters including connector type, position count, pitch, contact finishes, and insulation material. The primary difference is product status (active vs. obsolete) and RoHS compliance. No design modification is required.

Q: What are the key differences between 71920-305LF and 71991-302LF?

A: The 71920-305LF preserves the 5-position single-row configuration of the original part. The 71991-302LF reduces positions to 4 and changes to a 2-row layout with 0.100" row spacing. Both maintain 0.100" mating pitch and identical contact finishes. Selection depends on whether the application can accommodate the different row and position configuration.

Q: Are there packaging differences between these parts?

A: Yes. The 71920-305 was supplied in bulk packaging. Both 71920-305LF and 71991-302LF are supplied in tube packaging, which may affect handling and assembly processes.

Q: What is the significance of RoHS compliance for these parts?

A: The original 71920-305 is RoHS non-compliant. Both substitute parts (71920-305LF and 71991-302LF) are RoHS compliant, meeting current environmental and regulatory requirements for new designs and production.

Q: Can these connectors be used interchangeably in existing assemblies?

A: The 71920-305LF can be used interchangeably with 71920-305 without PCB modification. The 71991-302LF requires PCB redesign due to its different row configuration and position count, and therefore cannot be used as a direct drop-in replacement.