Amphenol ICC 65823-021 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 65823-021 is a rectangular connector header, right-angle configuration, with 20 positions at 2.54mm pitch. This through-hole component features shrouded 4-wall design with solder termination and push-pull fastening. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain compatibility across connector type, pitch, position count, mounting style, and termination method.

Substiute Parts

65823-021

Amphenol ICC (FCI)In Stock: 73565823-021 Datasheet

Current PartRFQ

N3428-1002RB

3MIn Stock: 1103N3428-1002RB Datasheet

MFR RecommendedRFQ

N3428-1003RB

3MIn Stock: 1036N3428-1003RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 65823-021 is determined by the following critical parameters:

• Connector type: Header
• Contact type: Male pin
• Pitch - mating: 0.100" (2.54mm)
• Number of positions: 20
• Number of rows: 2
• Row spacing - mating: 0.100" (2.54mm)
• Mounting type: Through hole, right angle
• Termination: Solder
• Fastening type: Push-pull
• Shrouding: Shrouded configuration

The 3M N3428-1002RB and N3428-1003RB meet all critical substitution criteria. Both parts maintain identical connector architecture, pitch, position count, and mounting configuration. Differences in contact length, insulation height, and shrouding wall count (3-wall vs. 4-wall) fall within acceptable mechanical tolerances for board-to-board and cable applications. Both substitute parts are active products with current manufacturing support and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Both 3M N3428-1002RB and N3428-1003RB are qualified substitutes for the obsolete Amphenol ICC 65823-021. Selection between the two 3M alternatives depends on post length requirements for your specific PCB stack-up:

• N3428-1002RB: 0.112" (2.84mm) post length. Select for applications requiring shorter solder tail engagement.
• N3428-1003RB: 0.155" (3.94mm) post length. Select for applications requiring longer solder tail engagement, closer to the original 65823-021 specification of 0.150" (3.81mm).

Both substitute parts offer advantages over the original component: active product status ensures ongoing availability and manufacturing support, ROHS3 compliance meets current regulatory requirements, and specified operating temperature range (-55°C ~ 105°C) and current rating (1.75A) provide documented performance parameters absent from the original specification.

The transition from 4-wall to 3-wall shrouding and from circular to square contact geometry represents minor mechanical variations within standard connector design tolerances and does not impact functional compatibility in board-to-board or cable applications.

Frequently Asked Questions (FAQ)

Q: Can N3428-1002RB and N3428-1003RB be used interchangeably with 65823-021?

A: Both 3M parts are functionally equivalent substitutes. They share identical connector type, pitch, position count, row configuration, mounting style, and termination method. Selection between them depends on post length requirements for your PCB assembly process.

Q: What is the difference between N3428-1002RB and N3428-1003RB?

A: The primary difference is contact post length. N3428-1002RB provides 0.112" (2.84mm) post length, while N3428-1003RB provides 0.155" (3.94mm) post length. Both maintain identical mating contact length (0.240"), pitch, and position configuration. Choose based on your PCB thickness and solder joint requirements.

Q: Why does the original 65823-021 have 4-wall shrouding while substitutes have 3-wall?

A: Both shrouding configurations provide adequate keying and mechanical protection for 20-position headers at 2.54mm pitch. The 3-wall design of the 3M alternatives is a standard industry variation that maintains full functional compatibility while reducing material usage.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both N3428-1002RB and N3428-1003RB are ROHS3 compliant. The original 65823-021 is RoHS non-compliant. If RoHS compliance is required for your application, the 3M substitutes satisfy this requirement.

Q: What is the operating temperature range for these connectors?

A: The original 65823-021 does not specify an operating temperature range. Both 3M substitutes are rated for -55°C ~ 105°C, providing documented thermal performance for industrial and commercial applications.

Q: Do the substitute parts have current and voltage ratings?

A: Both N3428-1002RB and N3428-1003RB are rated for 1.75A continuous current. Voltage ratings are not specified for any of the three parts. Verify voltage requirements against your application specifications.

Q: What contact finish is used on the substitute parts?

A: Both 3M substitutes feature gold-plated mating contacts (30.0µin / 0.76µm thickness) with tin-plated posts (200.0µin / 5.08µm thickness). The original part specifies gold or gold GXT™ mating finish without post finish specification.