3M 81026-650C07-RB Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 81026-650C07-RB is a surface mount rectangular connector header designed for board-to-cable/wire applications. This component features 26 positions arranged in 2 rows with 0.050" (1.27mm) pitch spacing and shrouded 4-wall construction. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Substiute Parts

81026-650C07-RB

3MIn Stock: 113081026-650C07-RB Datasheet

Current PartRFQ

81026-650C07-RB

3MIn Stock: 168081026-650C07-RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 81026-650C07-RB is determined by strict alignment of the following critical parameters:

• Connector type: Header
• Contact type: Male Pin
• Number of positions: 26
• Number of rows: 2
• Pitch - mating: 0.050" (1.27mm)
• Row spacing - mating: 0.100" (2.54mm)
• Mounting type: Surface Mount
• Shrouding: Shrouded - 4 Wall
• Termination: Solder
• Contact finish - mating: Gold
• Contact material: Copper Alloy
• Insulation material: Liquid Crystal Polymer (LCP)
• Operating temperature range: -55°C ~ 105°C
• Current rating: 0.75A
• Material flammability rating: UL94 V-0
• RoHS status: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

The identified substitute maintains all critical electrical and mechanical parameters. Variations in fastening type, insulation height, and contact finish thickness on the post do not affect functional compatibility in standard applications.

Parameter Comparison

Engineering Selection Recommendations

The active 3M 81026-650C07-RB (Tray packaging) is the direct equivalent for the obsolete variant. Both components share identical electrical and mechanical specifications across all critical parameters including connector topology, contact configuration, pitch spacing, mounting method, and environmental ratings.

The active substitute maintains ROHS3 compliance and UL94 V-0 flammability certification. The component is currently in active production status with established supply availability, making it suitable for new designs and replacement applications.

Differences in fastening hook length (Long vs. Short) and insulation height do not affect electrical performance or mating compatibility. The increased contact finish thickness on the post (250.0µin vs. 100.0µin) in the active variant provides enhanced durability for solder joint reliability.

Frequently Asked Questions (FAQ)

Q: Can the active 81026-650C07-RB substitute directly for the obsolete version in existing designs?

A: Yes. Both variants maintain identical electrical and mechanical specifications for connector type, position count, pitch spacing, row configuration, mounting method, and environmental operating range. Direct substitution is supported without design modification.

Q: What is the significance of the fastening hook length difference?

A: The fastening type variation (Long vs. Short hooks) relates to mechanical retention mechanism design. This difference does not affect electrical connectivity or mating compatibility with corresponding receptacle connectors.

Q: Does the insulation height difference impact compatibility?

A: The insulation height variation (0.828" vs. 0.405") reflects physical profile differences but does not affect electrical performance or mating interface compatibility. PCB layout and clearance requirements should be evaluated for specific applications.

Q: Are both variants RoHS and flammability compliant?

A: Yes. Both the obsolete and active variants are ROHS3 compliant and carry UL94 V-0 material flammability certification.

Q: What packaging options are available?

A: The obsolete variant is supplied in bulk packaging. The active substitute is supplied in Tray packaging, which is standard for production environments.

Q: Is the increased contact finish thickness on the post a performance improvement?

A: The active variant features 250.0µin (6.35µm) post finish thickness compared to 100.0µin (2.54µm) on the obsolete variant. This provides enhanced solder joint durability and improved long-term reliability in thermal cycling applications.