QFS-026-04.25-H-D-A-TR Equivalent & Substitute Parts

Part Overview

The QFS-026-04.25-H-D-A-TR is a 52-position rectangular connector receptacle manufactured by Samtec Inc. as part of the Power Q2™ QFS series. This surface mount connector features center strip contacts with gold plating and is designed for high-density interconnect applications. The part is currently active in production with 1108 units available in tape and reel packaging. Substitute parts are identified when packaging format differs while maintaining identical electrical and mechanical specifications, allowing for flexible procurement and inventory management across different assembly processes.

Substiute Parts

QFS-026-04.25-H-D-A-TR

Samtec Inc.In Stock: 1187QFS-026-04.25-H-D-A-TR Datasheet

Current PartRFQ

QFS-026-04.25-H-D-A

Samtec Inc.In Stock: 1712QFS-026-04.25-H-D-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QFS-026-04.25-H-D-A-TR is determined by strict equivalence across the following critical parameters:

• Connector type and contact configuration (Receptacle, Center Strip Contacts)
• Position count and pitch (52 positions at 0.025" / 0.64mm)
• Row configuration (2 rows)
• Mounting technology (Surface Mount)
• Contact material and finish specifications (Gold, 30.0µin thickness)
• Physical dimensions (Height above board: 0.278" / 7.06mm; Mated stacking heights: 10mm, 11mm, 14mm)
• Series designation (Power Q2™ QFS)
• Compliance certifications (ROHS3, MSL 1)

The identified substitute part differs only in packaging format (Tray versus Tape & Reel), which does not affect electrical or mechanical performance. All other specifications remain identical.

Parameter Comparison

Engineering Selection Recommendations

Both the QFS-026-04.25-H-D-A-TR and QFS-026-04.25-H-D-A are active production parts with identical electrical and mechanical specifications. Selection between these parts is determined by assembly process requirements and packaging compatibility:

The tape and reel format (QFS-026-04.25-H-D-A-TR) is suitable for automated pick-and-place assembly operations. The tray format (QFS-026-04.25-H-D-A) is appropriate for manual assembly or alternative handling systems. Both parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard reflow soldering processes without moisture bake-out requirements.

Frequently Asked Questions (FAQ)

Q: Can QFS-026-04.25-H-D-A be used as a direct replacement for QFS-026-04.25-H-D-A-TR?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format. Selection depends on assembly equipment compatibility and handling requirements.

Q: What is the significance of the packaging designation in the part number?

A: The "-TR" suffix indicates tape and reel packaging, optimized for automated assembly. The absence of this suffix indicates tray packaging. Packaging does not affect connector performance or specifications.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical ROHS3 compliance and MSL 1 rating. Both are suitable for standard surface mount reflow processes.

Q: What are the mated stacking height options?

A: The QFS-026 series supports three mated stacking heights: 10mm, 11mm, and 14mm. These options accommodate different application requirements for connector stack height in mated configurations.

Q: Is inventory availability a factor in part selection?

A: Inventory levels may influence procurement decisions. The tray format currently has higher availability (1624 units) compared to tape and reel format (1108 units). However, both formats are in active production.