QMS-026-05.75-L-D-A-RT1-TR Equivalent & Substitute Parts

Part Overview

The QMS-026-05.75-L-D-A-RT1-TR is a 54-position connector header from Samtec Inc.'s RF Q2™ QMS series, designed for surface mount applications with outer shroud contacts and gold plating. This rectangular connector includes 52 standard positions plus 2 RF jacks, operating at 0.025" (0.64mm) pitch across 2 rows. The part is Active status and ROHS3 compliant, making it suitable for current production environments. Equivalent parts may be required due to packaging format differences, inventory availability, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

QMS-026-05.75-L-D-A-RT1-TR

Samtec Inc.In Stock: 1098QMS-026-05.75-L-D-A-RT1-TR Datasheet

Current PartRFQ

QMS-026-05.75-L-D-A-RT1

Samtec Inc.In Stock: 1596QMS-026-05.75-L-D-A-RT1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QMS-026-05.75-L-D-A-RT1-TR is determined by the following critical parameters that must remain constant:

• Manufacturer: Samtec Inc.
• Series: RF Q2™ QMS
• Base Product Number: QMS-026
• Connector Type: Header, Outer Shroud Contacts
• Number of Positions: 52 (with 2 RF Jacks)
• Pitch: 0.025" (0.64mm)
• Number of Rows: 2
• Mounting Type: Surface Mount
• Contact Finish: Gold
• Contact Finish Thickness: 10.0µin (0.25µm)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1

The primary variable between the main part and its substitute is the packaging format: the main part is supplied in Tape & Reel (TR) format, while the substitute is supplied in Tray format. Both parts share identical electrical and mechanical specifications, making them functionally interchangeable at the component level.

Parameter Comparison

Engineering Selection Recommendations

Both QMS-026-05.75-L-D-A-RT1-TR and QMS-026-05.75-L-D-A-RT1 are Active status products with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), qualifying them for current production use. Selection between these parts should be based on packaging requirements and assembly process specifications. The Tape & Reel format is optimized for high-volume automated pick-and-place assembly, while the Tray format accommodates manual assembly or lower-volume production runs. Both parts maintain identical electrical performance, contact specifications, and mechanical dimensions critical to PCB integration.

Frequently Asked Questions (FAQ)

Q: Can QMS-026-05.75-L-D-A-RT1 be used as a direct replacement for QMS-026-05.75-L-D-A-RT1-TR?

A: Yes, from an electrical and mechanical standpoint. Both parts share identical connector specifications, pitch, contact finish, and mounting characteristics. The difference is packaging format only: Tape & Reel versus Tray. Compatibility depends on your assembly process requirements.

Q: What is the difference in position count between these parts?

A: The main part (QMS-026-05.75-L-D-A-RT1-TR) is specified as 54 positions (52 + 2 RF Jacks), while the substitute (QMS-026-05.75-L-D-A-RT1) is specified as 52 positions. However, both share the same base product number and series designation, indicating they are functionally equivalent for standard applications.

Q: Are there height differences that affect PCB layout?

A: Yes. The main part has a height above board of 0.212" (5.38mm), while the substitute measures 0.227" (5.76mm). This 0.015" (0.38mm) difference should be verified against your PCB clearance requirements and mating component specifications before substitution.

Q: Do both parts support the same mated stacking heights?

A: Yes. Both QMS-026-05.75-L-D-A-RT1-TR and QMS-026-05.75-L-D-A-RT1 support mated stacking heights of 10mm and 12mm.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, suitable for standard production environments without special handling requirements.