3M 10250-6212VC D-Sub 50-Position Receptacle Connector

Part Overview

The 3M 10250-6212VC is a 50-position Mini D Ribbon (MDR) receptacle connector designed for panel mount, through-hole solder applications. This connector features shielded outer shroud contacts with gold-plated terminations and is rated for unlimited moisture sensitivity (MSL 1).

The 10250-6212VC carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for legacy systems utilizing this connector.

Key Parameters

Parameter	Value
Manufacturer Part Number	10250-6212VC
Manufacturer	3M
Category	D-Sub, D-Shaped Connectors
Series	102, Mini D Ribbon (MDR)
Connector Type	Receptacle
Number of Positions	50
Number of Rows	2
Mounting Type	Panel Mount, Through Hole
Termination	Solder
Connector Style	Outer Shroud Contacts
Flange Feature	Housing/Shell (M2.6)
Features	Shielded
Contact Finish	Gold
Contact Finish Thickness	30.0µin (0.76µm)
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the 10250-6212VC is determined by the following critical parameters:

Connector Type & Position Count: Receptacle configuration with 50 positions in 2-row arrangement
Termination Method: Solder termination for PCB integration
Connector Style: Outer shroud contacts for mechanical alignment and shielding
Contact System: Gold-plated contacts for reliable electrical connection
Mounting Configuration: Through-hole solder mounting capability

The substitute parts identified maintain these core electrical and mechanical characteristics. Variations in flange feature design (Housing/Shell M2.6 versus Board Side 4-40 versus Housing/Shell Unthreaded) and packaging format do not affect functional interchangeability in solder-based PCB applications where the connector body and contact arrangement remain consistent.

Parameter Comparison

Parameter	10250-6212VC (Main)	10250-6212PC	B57-050-221-202	B57-050-221-402
Manufacturer	3M	3M	Mercury United Electronics, Inc.	Mercury United Electronics, Inc.
Series	102, Mini D Ribbon (MDR)	102, Mini D Ribbon (MDR)	B57, MDR	B57, MDR
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle
Number of Positions	50	50	50	50
Number of Rows	2	2	2	2
Mounting Type	Panel Mount, Through Hole	Panel Mount, Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder
Connector Style	Outer Shroud Contacts	Outer Shroud Contacts	Outer Shroud Contacts	Outer Shroud Contacts
Contact Finish	Gold	Gold	Gold	Gold
Flange Feature	Housing/Shell (M2.6)	Housing/Shell (M2.6)	Board Side (4-40)	Housing/Shell (Unthreaded)
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct 3M Equivalent: The 10250-6212PC is the active-status equivalent from 3M. It maintains identical electrical and mechanical specifications to the 10250-6212VC, with the primary difference being RoHS compliance status (RoHS Compliant versus RoHS non-compliant). This part is recommended for new designs or production runs requiring current-generation components with regulatory compliance.

Cross-Manufacturer Alternatives: The Mercury United Electronics B57-050-221-202 and B57-050-221-402 connectors provide functional substitution for applications where cross-manufacturer sourcing is acceptable. Both parts maintain the 50-position, 2-row receptacle configuration with solder termination and gold-plated contacts. These parts carry ROHS3 compliance and active product status, supporting long-term supply chain stability.

Flange feature differences (Board Side 4-40 for B57-050-221-202 versus Housing/Shell Unthreaded for B57-050-221-402) require mechanical design verification to confirm compatibility with existing panel mount or PCB mounting schemes.

Frequently Asked Questions (FAQ)

Q: Can the 10250-6212PC directly replace the 10250-6212VC in existing designs?

A: Yes. The 10250-6212PC is functionally equivalent with identical electrical and mechanical specifications. The primary difference is RoHS compliance status. Designs originally using the non-compliant 10250-6212VC can transition to the 10250-6212PC without electrical or mechanical modification.

Q: What are the key differences between the 3M and Mercury alternatives?

A: The 3M 10250-6212PC maintains the original M2.6 flange feature. The Mercury B57-050-221-202 uses a Board Side 4-40 flange, while the B57-050-221-402 uses an unthreaded Housing/Shell flange. All three maintain 50-position, 2-row receptacle configuration with solder termination and gold-plated contacts. Flange selection depends on panel mount or PCB mounting requirements.

Q: Are there packaging differences between substitute parts?

A: Yes. The 10250-6212VC ships in standard packaging, the 10250-6212PC in Tray packaging, the B57-050-221-202 in Tray packaging, and the B57-050-221-402 in Bulk packaging. Packaging format does not affect connector functionality but may influence handling, storage, and procurement logistics.

Q: Do all substitute parts meet the same moisture sensitivity requirements?

A: Yes. All listed parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.

Q: Which substitute part should be selected for new production designs?

A: The 10250-6212PC is recommended for new designs requiring 3M sourcing continuity. For cross-manufacturer flexibility, either Mercury part (B57-050-221-202 or B57-050-221-402) is acceptable, provided flange feature compatibility is confirmed with mechanical design requirements.

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