PLCC 28-Position Socket 69802-128LF Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 69802-128LF is a 28-position PLCC socket designed for surface mount applications with tin-plated phosphor bronze contacts. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production and maintenance applications. The socket accommodates 28-pin PLCC packages in a 4 x 7 grid configuration with 0.050" (1.27mm) pitch spacing.

Substiute Parts

69802-128LF

Amphenol ICC (FCI)In Stock: 84769802-128LF Datasheet

Current PartRFQ

8428-21B1-RK-TP

3MIn Stock: 11358428-21B1-RK-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3M 8428-21B1-RK-TP qualifies as a functional substitute based on the following critical parameters:

• Socket Type & Configuration: Both are PLCC sockets with 28 positions in 4 x 7 grid arrangement
• Pitch Specifications: Mating pitch of 0.050" (1.27mm) and post pitch of 0.050" (1.27mm) are identical
• Contact Finish: Both feature tin-plated mating and post contacts
• Mounting Method: Both are surface mount with solder termination
• Frame Design: Both incorporate closed frame construction
• Electrical Performance: Both rated for 1 A current capacity
• Environmental Compliance: Both carry UL94 V-0 flammability rating and MSL 1 classification
• Regulatory Status: Both are REACH Unaffected and classified as EAR99

Parameter Comparison

Engineering Selection Recommendations

The 3M 8428-21B1-RK-TP is suitable as a substitute for the obsolete Amphenol ICC 69802-128LF based on functional equivalence across all critical socket parameters. The substitute maintains identical pitch spacing, contact finish type, mounting configuration, and electrical ratings.

The 3M part carries active product status with ROHS3 compliance, providing supply chain continuity and regulatory alignment for new designs. The operating temperature range of the 3M part (-40°C ~ 105°C) is narrower than the original (-55°C ~ 125°C); applications requiring the full original temperature range must evaluate this limitation against specific system requirements.

Contact material differences (phosphor bronze versus copper alloy) and housing material differences (PPS versus glass-filled PBT) do not preclude substitution, as both material sets meet the specified electrical performance, flammability, and environmental compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the 3M 8428-21B1-RK-TP directly replace the Amphenol ICC 69802-128LF in existing designs?

A: Yes, for applications operating within -40°C to 105°C. The socket configurations, pitch spacing, contact finishes, and electrical ratings are functionally equivalent. Applications requiring operation below -40°C or above 105°C must evaluate the temperature limitation against system specifications.

Q: What are the key differences between these two PLCC 28-position sockets?

A: The primary differences are product status (obsolete versus active), housing material (PPS versus glass-filled PBT), contact material (phosphor bronze versus copper alloy), operating temperature range (-55°C to 125°C versus -40°C to 105°C), and regulatory compliance (the 3M part includes ROHS3 certification). All other functional parameters are equivalent.

Q: Are the contact finish thicknesses compatible?

A: Yes. The 3M part specifies 160.0µin (4.06µm) versus 150.0µin (3.81µm) for the original. Both thicknesses are within acceptable ranges for tin-plated PLCC socket contacts and do not affect functional compatibility.

Q: What is the packaging difference?

A: The 3M 8428-21B1-RK-TP is supplied in tube packaging, while the original packaging is not specified. Verify tube packaging compatibility with your assembly process requirements.

Q: Does the 3M part meet current regulatory requirements?

A: Yes. The 3M 8428-21B1-RK-TP is ROHS3 compliant, REACH Unaffected, and carries EAR99 classification, meeting current regulatory standards for electronic components.