3M 81036-650C04-RB Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 81036-650C04-RB is a surface mount rectangular connector header designed for board-to-cable/wire applications. This 36-position connector operates at 0.050" (1.27mm) pitch with dual-row configuration and 0.100" (2.54mm) row spacing. The connector features shrouded 4-wall design with latch lock/eject hooks and gold-plated mating contacts. The product is classified as obsolete, necessitating identification of equivalent alternatives for ongoing design support and procurement.

Substiute Parts

81036-650C04-RB

3MIn Stock: 79381036-650C04-RB Datasheet

Current PartRFQ

81036-650C04-RB

3MIn Stock: 79381036-650C04-RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 81036-650C04-RB is determined by strict equivalence across the following critical parameters:

• Connector type: Header (male pin contact)
• Number of positions: 36
• 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
• Fastening type: Latch Lock/Eject Hooks, Short
• Contact finish - mating: Gold
• Contact finish - post: Tin
• Insulation material: Liquid Crystal Polymer (LCP)
• Operating temperature range: -55°C ~ 105°C
• Current rating: 0.75A
• Material flammability rating: UL94 V-0
• RoHS compliance: Required

Based on the provided input data, the 3M 81036-650C04-RB is identified as the manufacturer-recommended equivalent part. No alternative substitute parts are specified in the provided substitute part list.

Parameter Comparison

Engineering Selection Recommendations

The 3M 81036-650C04-RB is classified as obsolete. The manufacturer-recommended equivalent is the 3M 81036-650C04-RB, which maintains full electrical and mechanical compatibility with identical specifications across all critical parameters.

Both parts comply with RoHS requirements and carry UL94 V-0 material flammability certification. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints for storage and handling. The operating temperature range of -55°C to 105°C and current rating of 0.75A per contact remain consistent.

For applications requiring the 36-position, dual-row, 1.27mm pitch rectangular connector header with surface mount termination, the specified part maintains full functional equivalence.

Frequently Asked Questions (FAQ)

Q: What makes the 81036-650C04-RB suitable for substitution? A: The part is identified as the manufacturer-recommended equivalent with identical electrical and mechanical specifications, including 36 positions, 1.27mm pitch, dual-row configuration, surface mount termination, and gold-plated mating contacts.

Q: Are there any compliance differences between the main part and substitute? A: No. Both parts carry identical RoHS compliance status and UL94 V-0 material flammability certification.

Q: What is the significance of the MSL rating of 1? A: MSL 1 (Unlimited) indicates the connector has no moisture sensitivity constraints. Standard dry storage conditions are sufficient without requiring desiccant packaging or baking procedures.

Q: Does the 0.050" (1.27mm) pitch specification affect compatibility? A: Yes. The 1.27mm mating pitch and 2.54mm row spacing are critical parameters. Any substitute must maintain these exact dimensions for mechanical and electrical compatibility with mating connectors.

Q: What is the significance of the "Shrouded - 4 Wall" configuration? A: The 4-wall shrouding provides mechanical protection and polarization guidance during mating. This feature must be preserved in any equivalent connector to ensure proper alignment and prevent incorrect insertion.

Q: Are there temperature or current limitations for this connector? A: The operating temperature range is -55°C to 105°C, and the current rating is 0.75A per contact. Applications must remain within these specifications for reliable operation.