3M 81036-650C01-RB Equivalent & Substitute Parts

Part Overview

The 3M 81036-650C01-RB is a rectangular connector header designed for surface mount applications. This connector features 36 positions arranged in 2 rows with 0.050" (1.27mm) pitch spacing and shrouded 4-wall construction. The part carries an obsolete product status, making identification of equivalent alternatives essential for ongoing design support and component procurement.

Substiute Parts

81036-650C01-RB

3MIn Stock: 180681036-650C01-RB Datasheet

Current PartRFQ

81036-650C01-RB

3MIn Stock: 180681036-650C01-RB Datasheet

MFR RecommendedRFQ

81036-650C01-RB

3MIn Stock: 180681036-650C01-RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 81036-650C01-RB is determined by strict equivalence across the following critical parameters:

• Connector Type & Contact Configuration: Header with male pins, 36 positions in 2-row arrangement
• Pitch Specifications: 0.050" (1.27mm) mating pitch with 0.100" (2.54mm) row spacing
• Mounting & Termination: Surface mount with solder termination
• Shrouding & Mechanical: Shrouded 4-wall construction with latch lock/eject hooks
• Electrical & Environmental: 0.75A current rating, -55°C to 105°C operating range, UL94 V-0 flammability rating
• Material & Finish: Liquid Crystal Polymer insulation, gold-plated mating contacts, tin-plated posts
• Compliance: RoHS compliant, MSL 1

Substitute parts must match all specified parameters without deviation. No parameter substitution or tolerance relaxation is permitted.

Parameter Comparison

Engineering Selection Recommendations

The 81036-650C01-RB is classified as obsolete. Component selection for this connector type requires identification of parts meeting identical electrical, mechanical, and environmental specifications. The part's RoHS compliance and UL94 V-0 flammability rating establish baseline compliance requirements for any substitute selection.

Surface mount rectangular connectors with 36-position, 2-row configuration at 0.050" pitch are specialized components. Substitution is limited to parts with exact parameter matching across connector type, pitch spacing, row configuration, shrouding design, and termination method. The gold-plated mating contact finish and tin-plated post finish are specific requirements that must be maintained.

Current availability and inventory status should be evaluated during component procurement. The MSL 1 rating indicates unlimited shelf life under standard storage conditions, simplifying logistics for long-term applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute a different pitch spacing connector for the 81036-650C01-RB?

A: No. The 0.050" (1.27mm) mating pitch with 0.100" (2.54mm) row spacing is a critical mechanical parameter. Connectors with different pitch specifications are not compatible with the mating receptacle and cannot be substituted.

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

A: The 4-wall shrouding provides mechanical protection and alignment during mating. This design feature is integral to the connector's mechanical interface and must be present in any substitute part.

Q: Are there alternative contact finishes available for this connector?

A: The specified contact finishes are gold for mating surfaces and tin for solder posts. These finishes are determined by the connector's design and application requirements. Substitute parts must maintain identical finish specifications.

Q: How does the obsolete product status affect component selection?

A: Obsolete status indicates the part is no longer manufactured by 3M. Component procurement must focus on identifying equivalent parts from current inventory or alternative manufacturers offering identical specifications. Availability may be limited.

Q: Is the MSL 1 rating important for storage and handling?

A: MSL 1 indicates unlimited moisture sensitivity, meaning the component does not require special moisture control during storage or handling. This simplifies logistics compared to higher MSL-rated components.

Q: Can I use a through-hole version instead of surface mount?

A: No. The mounting type is a fundamental design parameter. Surface mount and through-hole connectors have different footprints and cannot be interchanged without PCB redesign.

Q: What does the UL94 V-0 flammability rating mean?

A: UL94 V-0 indicates the insulation material meets the highest flammability classification, with self-extinguishing properties. This rating is a compliance requirement and must be maintained in substitute parts.