QMS-026-06.75-L-D-A-TR Equivalent & Substitute Parts

Part Overview

The QMS-026-06.75-L-D-A-TR is a 52-position connector header from Samtec Inc.'s Power Q2™ QMS series, designed for surface mount applications with outer shroud contacts and gold plating. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when packaging or minor dimensional variations do not affect core electrical and mechanical functionality within the specified parameter tolerances.

Substiute Parts

QMS-026-06.75-L-D-A-TR

Samtec Inc.In Stock: 783QMS-026-06.75-L-D-A-TR Datasheet

Current PartRFQ

QMS-026-06.75-L-D-A

Samtec Inc.In Stock: 774QMS-026-06.75-L-D-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QMS-026-06.75-L-D-A-TR is determined by strict equivalence in the following critical parameters:

• Manufacturer and series (Samtec Inc., Power Q2™ QMS)
• Electrical specifications (52 positions, 0.025" pitch, 2 rows)
• Connector type and contact configuration (Header, Outer Shroud Contacts)
• Contact material and finish (Gold, 10.0µin thickness)
• Mounting technology (Surface Mount)
• Functional features (Board Guide, Ground Bus)
• Compliance certifications (RoHS3, MSL 1)

Packaging format (Tape & Reel vs. Tray) and minor height variations above board do not affect electrical or mechanical compatibility when all other parameters remain identical. The substitute part QMS-026-06.75-L-D-A differs only in packaging and height above board specification, maintaining full functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the QMS-026-06.75-L-D-A-TR and QMS-026-06.75-L-D-A maintain Active product status with identical RoHS3 compliance and MSL 1 certification. Selection between these parts is determined by packaging requirements and board layout constraints. The main part (QMS-026-06.75-L-D-A-TR) is supplied in Tape & Reel format suitable for automated assembly processes. The substitute part (QMS-026-06.75-L-D-A) is supplied in Tray format. The height above board difference of 0.015" (0.38mm) must be evaluated against specific PCB design clearances and mating component positioning.

Frequently Asked Questions (FAQ)

Q: Can QMS-026-06.75-L-D-A be used as a direct replacement for QMS-026-06.75-L-D-A-TR?

A: Yes, provided that the packaging format change from Tape & Reel to Tray is compatible with your assembly process, and the height above board variation of 0.015" (0.38mm) does not conflict with board layout or mating component clearances.

Q: What determines substitution eligibility for this connector header?

A: Substitution is valid when the following parameters remain identical: manufacturer (Samtec Inc.), series (Power Q2™ QMS), position count (52), pitch (0.025"), row configuration (2), connector type (Header with Outer Shroud Contacts), mounting method (Surface Mount), contact finish (Gold at 10.0µin), and functional features (Board Guide, Ground Bus). Packaging format and minor height variations do not affect electrical compatibility.

Q: Are there compliance differences between the main part and substitute?

A: No. Both parts maintain identical RoHS3 compliance, MSL 1 rating, and Active product status. All regulatory certifications and environmental compliance specifications are equivalent.

Q: What is the impact of the 0.015" height difference?

A: The substitute part (QMS-026-06.75-L-D-A) has a height above board of 0.265" compared to 0.250" for the main part. This 0.38mm difference must be evaluated against PCB design clearances, component stacking requirements, and mating connector positioning to ensure no mechanical interference.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel and Tray packaging formats do not affect electrical or mechanical performance. The selection is based on assembly process requirements and inventory management practices.