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3M 81050-600C01-RB Rectangular Connector Header - Equivalent & Substitute Parts
Part Overview
The 3M 81050-600C01-RB is a surface mount rectangular connector header designed for board-to-cable/wire applications. This 50-position, 2-row header operates across an industrial temperature range of -55°C to 105°C and features gold-plated mating contacts with tin-plated posts. The connector utilizes a 0.050" (1.27mm) pitch with 0.100" (2.54mm) row spacing and incorporates push-pull fastening with 4-wall shrouding for secure mating. The part is currently listed with Active product status and maintains full inventory availability.
Identifying equivalent and substitute parts is necessary when the primary part becomes unavailable, when design revisions require alternative sourcing options, or when supply chain optimization requires qualified alternatives that meet identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Manufacturer Part Number | 81050-600C01-RB |
| Manufacturer | 3M |
| Category | Rectangular Connectors |
| Series | 810 |
| Connector Type | Header |
| Contact Type | Male Pin |
| Number of Positions | 50 |
| 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 |
| Fastening Type | Push-Pull |
| Operating Temperature Range | -55°C ~ 105°C |
| Current Rating | 0.75A |
| Contact Finish - Mating | Gold (30.0µin / 0.76µm) |
| Contact Finish - Post | Tin (250.0µin / 6.35µm) |
| Insulation Material | Liquid Crystal Polymer (LCP) |
| Material Flammability Rating | UL94 V-0 |
Substitute Part Grouping Explanation
Substitution eligibility for the 3M 81050-600C01-RB is determined by strict equivalence across the following critical parameters:
- Connector Configuration: 50 positions, 2 rows, 0.050" (1.27mm) mating pitch, 0.100" (2.54mm) row spacing
- Contact Specifications: Male pin type, gold-plated mating surface, tin-plated posts, square contact shape
- Mechanical Interface: Surface mount termination, push-pull fastening, 4-wall shrouding, board-to-cable/wire style
- Environmental Performance: Operating temperature range -55°C to 105°C, UL94 V-0 flammability rating
- Electrical Characteristics: 0.75A current rating per contact, copper alloy contact material
Parts meeting all these parameters are classified as direct equivalents. Variations in product status, inventory levels, or compliance certifications do not affect functional interchangeability when all electrical and mechanical parameters remain identical.
Parameter Comparison
| Parameter | 81050-600C01-RB (Main Part) | 81050-600C01-RB (Substitute) |
|---|---|---|
| Manufacturer | 3M | 3M |
| Series | 810 | 810 |
| Connector Type | Header | Header |
| Contact Type | Male Pin | Male Pin |
| Number of Positions | 50 | 50 |
| Number of Rows | 2 | 2 |
| Pitch - Mating | 0.050" (1.27mm) | 0.050" (1.27mm) |
| Row Spacing - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Shrouding | Shrouded - 4 Wall | Shrouded - 4 Wall |
| Fastening Type | Push-Pull | Push-Pull |
| Operating Temperature Range | -55°C ~ 105°C | -55°C ~ 105°C |
| Current Rating | 0.75A | 0.75A |
| Contact Finish - Mating | Gold (30.0µin / 0.76µm) | Gold (30.0µin / 0.76µm) |
| Contact Finish - Post | Tin (250.0µin / 6.35µm) | Tin (250.0µin / 6.35µm) |
| Insulation Material | Liquid Crystal Polymer (LCP) | Liquid Crystal Polymer (LCP) |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 |
| Product Status | Active | Obsolete |
| RoHS Status | Not specified | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | Not specified | 1 (Unlimited) |
Engineering Selection Recommendations
The substitute part 81050-600C01-RB maintains complete electrical and mechanical equivalence to the main part across all specified parameters. Both parts share identical connector configuration, contact specifications, operating temperature range, and flammability rating.
The primary distinction is product status: the main part carries Active status with current manufacturing support, while the substitute part is listed as Obsolete. The substitute part provides RoHS Compliance certification and MSL Level 1 rating, indicating compliance with environmental regulations and unlimited shelf life under standard storage conditions.
Selection between these parts should be based on supply chain availability and long-term sourcing requirements. The Active status of the main part ensures continued manufacturing support and availability. The Obsolete status of the substitute part indicates limited future availability and should be considered only when the main part is unavailable or when existing inventory of the substitute part is being utilized.
Frequently Asked Questions (FAQ)
Q: Are these parts mechanically interchangeable?
A: Yes. Both parts share identical mechanical specifications including 50-position, 2-row configuration, 0.050" (1.27mm) mating pitch, 0.100" (2.54mm) row spacing, surface mount termination, push-pull fastening, and 4-wall shrouding. PCB footprints and mating interface dimensions are identical.
Q: Are these parts electrically interchangeable?
A: Yes. Both parts feature identical electrical characteristics: 0.75A current rating per contact, gold-plated mating contacts with 30.0µin thickness, tin-plated posts with 250.0µin thickness, copper alloy contact material, and -55°C to 105°C operating temperature range.
Q: What is the significance of the product status difference?
A: Active status indicates the part is currently manufactured and supported by 3M. Obsolete status indicates the part is no longer in active production. For new designs or long-term applications, the Active part is recommended. The Obsolete part may be suitable for replacement or repair applications where existing inventory is available.
Q: Does the RoHS Compliance certification on the substitute part affect compatibility?
A: No. RoHS Compliance is an environmental regulation certification that does not affect electrical or mechanical performance. Both parts meet the same functional specifications. The presence of RoHS certification on the substitute part indicates compliance with environmental directives and may be required for certain applications or markets.
Q: What does MSL Level 1 mean?
A: Moisture Sensitivity Level (MSL) 1 indicates unlimited shelf life under standard storage conditions (typically 23°C ± 2°C and 45% ± 5% relative humidity). This means the part does not require special moisture-controlled storage or baking procedures prior to assembly.
Q: Can I use the Obsolete part in new designs?
A: While the Obsolete part is functionally equivalent, it is not recommended for new designs due to limited future availability. New designs should specify the Active part to ensure long-term supply chain support and manufacturing continuity.
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