QMS-052-02-SL-D-RA-MG-K Equivalent & Substitute Parts

Part Overview

The QMS-052-02-SL-D-RA-MG-K is a 104-position rectangular connector header manufactured by Samtec Inc. as part of the Power Q2™ QMS series. This surface mount, right-angle header features outer shroud contacts with gold plating and is designed for high-density interconnect applications. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified based on identical electrical and mechanical specifications with variations limited to packaging configuration.

Substiute Parts

Key Parameters

Parameter Specification
Manufacturer Samtec Inc.
Series Power Q2™ QMS
Number of Positions 104
Pitch 0.025" (0.64mm)
Number of Rows 2
Connector Type Header, Outer Shroud Contacts
Mounting Type Surface Mount, Right Angle; Through Hole
Contact Finish Gold
Contact Finish Thickness 10.0µin (0.25µm)
Height Above Board 0.320" (8.12mm)
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the QMS-052-02-SL-D-RA-MG-K is determined by strict equivalence across all electrical and mechanical parameters. The following criteria establish substitutability:

  • Identical position count (104 positions)
  • Identical pitch specification (0.025" / 0.64mm)
  • Identical row configuration (2 rows)
  • Identical connector type (Header, Outer Shroud Contacts)
  • Identical mounting type (Surface Mount, Right Angle; Through Hole)
  • Identical contact finish and thickness (Gold, 10.0µin)
  • Identical height above board (0.320" / 8.12mm)
  • Identical series designation (Power Q2™ QMS)
  • Identical compliance certifications (RoHS3, MSL 1)

Packaging configuration (Tray versus Cut Tape) does not affect electrical or mechanical compatibility and represents the only allowable variation among substitute parts.

Parameter Comparison

Parameter QMS-052-02-SL-D-RA-MG-K (Tray) QMS-052-02-SL-D-RA-MG-K-TR (Cut Tape)
Manufacturer Samtec Inc. Samtec Inc.
Series Power Q2™ QMS Power Q2™ QMS
Number of Positions 104 104
Pitch 0.025" (0.64mm) 0.025" (0.64mm)
Number of Rows 2 2
Connector Type Header, Outer Shroud Contacts Header, Outer Shroud Contacts
Mounting Type Surface Mount, Right Angle; Through Hole Surface Mount, Right Angle; Through Hole
Contact Finish Gold Gold
Contact Finish Thickness 10.0µin (0.25µm) 10.0µin (0.25µm)
Height Above Board 0.320" (8.12mm) 0.320" (8.12mm)
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited) 1 (Unlimited)
Packaging Tray Cut Tape (CT)
Product Status Active Active

Engineering Selection Recommendations

Both QMS-052-02-SL-D-RA-MG-K and QMS-052-02-SL-D-RA-MG-K-TR maintain Active product status with identical electrical and mechanical specifications. Selection between these parts is determined solely by packaging and supply chain requirements. The Tray packaging (QMS-052-02-SL-D-RA-MG-K) is suitable for manual assembly and lower-volume applications. The Cut Tape packaging (QMS-052-02-SL-D-RA-MG-K-TR) is optimized for automated pick-and-place assembly processes and higher-volume production environments. Both variants satisfy RoHS3 compliance and MSL 1 requirements without restriction.

Frequently Asked Questions (FAQ)

Q: Are QMS-052-02-SL-D-RA-MG-K and QMS-052-02-SL-D-RA-MG-K-TR electrically identical?

A: Yes. Both parts are electrically and mechanically identical. They feature the same 104-position configuration, 0.025" pitch, gold contact finish, and mounting specifications. The difference is packaging only.

Q: What is the difference between Tray and Cut Tape packaging?

A: Tray packaging is used for manual component handling and lower-volume assembly. Cut Tape packaging is designed for automated pick-and-place equipment and high-volume production. The connector itself is identical in both formats.

Q: Can I substitute QMS-052-02-SL-D-RA-MG-K-TR for QMS-052-02-SL-D-RA-MG-K in my design?

A: Yes, provided your assembly process supports Cut Tape packaging. The electrical and mechanical performance is identical. Verify that your pick-and-place equipment is compatible with the Cut Tape format.

Q: Are both parts RoHS3 compliant?

A: Yes. Both QMS-052-02-SL-D-RA-MG-K and QMS-052-02-SL-D-RA-MG-K-TR are RoHS3 compliant with MSL 1 rating.

Q: What does MSL 1 mean for this connector?

A: MSL 1 indicates unlimited moisture sensitivity level, meaning the component has no moisture absorption restrictions and requires no special storage or handling conditions prior to assembly.

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