3M 81026-660C01-RB Equivalent & Substitute Parts

Part Overview

The 3M 81026-660C01-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 connector is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement planning.

Substiute Parts

81026-660C01-RB

3MIn Stock: 115381026-660C01-RB Datasheet

Current PartRFQ

81026-660C01-RB

3MIn Stock: 115381026-660C01-RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 81026-660C01-RB is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 26
• Number of Rows: 2
• Pitch - Mating: 0.050" (1.27mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Surface Mount
• Shrouding: Shrouded - 4 Wall
• Termination: Solder

Electrical & Environmental Compatibility Parameters:

• Operating Temperature Range: -55°C ~ 105°C (minimum)
• Current Rating: 0.75A (minimum)
• Insulation Material: Liquid Crystal Polymer (LCP)
• Contact Finish - Mating: Gold
• Contact Finish - Post: Tin

Compliance Parameters:

• RoHS Compliant
• Material Flammability Rating: UL94 V-0

Based on the provided input data, the manufacturer-recommended substitute is the 3M 81026-660C01-RB itself, indicating this is the primary reference part for this connector configuration.

Parameter Comparison

Engineering Selection Recommendations

The 3M 81026-660C01-RB is designated as obsolete. For applications currently utilizing this connector, design teams should evaluate long-term component availability and supply chain continuity. The part maintains RoHS compliance and UL94 V-0 flammability certification, meeting current regulatory requirements.

When sourcing alternatives, prioritize connectors that maintain identical mechanical and electrical specifications: 26-position, 2-row configuration with 0.050" (1.27mm) pitch, surface mount termination, and shrouded 4-wall construction. Electrical performance must sustain the 0.75A current rating and -55°C to 105°C operating temperature range.

Inventory availability of 1141 pieces in new original condition provides near-term supply for existing production requirements. For long-term design transitions, engage with connector manufacturers to identify active-status alternatives meeting the specified parameter set.

Frequently Asked Questions (FAQ)

Q: What makes a connector a valid substitute for the 81026-660C01-RB?

A: A substitute must match all critical parameters: 26 positions in 2 rows, 0.050" (1.27mm) mating pitch, 0.100" (2.54mm) row spacing, surface mount shrouded 4-wall header configuration with solder termination. Electrical ratings must meet or exceed 0.75A current capacity and -55°C to 105°C operating temperature range.

Q: Why is the 81026-660C01-RB listed as obsolete?

A: Obsolete status indicates the part is no longer in active production by the manufacturer. This classification necessitates proactive component sourcing and design planning to ensure supply continuity for existing applications.

Q: Are there compatibility concerns when substituting this connector?

A: Substitution is valid only when the replacement connector maintains identical pitch spacing, row configuration, position count, and mounting method. Mechanical fit and electrical performance depend on precise parameter alignment. Verify mating connector compatibility before implementation.

Q: What is the significance of the shrouded 4-wall construction?

A: Shrouded 4-wall design provides mechanical protection and polarization guidance during mating operations. This feature must be preserved in any substitute to maintain assembly reliability and prevent incorrect connector orientation.

Q: Does RoHS compliance affect substitute selection?

A: Yes. The 81026-660C01-RB is RoHS compliant. Substitute connectors must maintain equivalent compliance status to satisfy regulatory and procurement requirements in target markets.