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

Part Overview

The QFS-026-04.25-L-D-A-TR is a 52-position rectangular connector receptacle from Samtec Inc.'s Power Q2™ QFS series, designed for surface mount applications with center strip contacts and gold plating. This connector is actively manufactured and widely used in high-density interconnect applications requiring reliable signal and power distribution.

Identifying equivalent and substitute parts is necessary when the primary packaging format (Tape & Reel) is unavailable or when alternative packaging options better suit procurement, inventory, or assembly requirements.

Substiute Parts

QFS-026-04.25-L-D-A-TR

Samtec Inc.In Stock: 739QFS-026-04.25-L-D-A-TR Datasheet

Current PartRFQ

QFS-026-04.25-L-D-A

Samtec Inc.In Stock: 1402QFS-026-04.25-L-D-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Connector type and contact configuration (Receptacle, Center Strip Contacts)
• Number of positions (52)
• Pitch specification (0.025" / 0.64mm)
• Number of rows (2)
• Mounting technology (Surface Mount)
• Contact finish material and thickness (Gold, 10.0µin)
• Mechanical dimensions (Height Above Board: 0.278", Mated Stacking Heights: 10mm, 11mm, 14mm)
• Series compatibility (Power Q2™ QFS)
• Regulatory compliance (ROHS3, MSL 1)

The identified substitute part differs only in packaging format, maintaining full electrical and mechanical compatibility with the primary part number.

Parameter Comparison

Engineering Selection Recommendations

Both the QFS-026-04.25-L-D-A-TR and QFS-026-04.25-L-D-A are active products manufactured by Samtec Inc. and maintain identical electrical and mechanical specifications. Selection between these parts should be based on packaging requirements and procurement logistics:

The QFS-026-04.25-L-D-A-TR in Tape & Reel packaging is optimized for automated pick-and-place assembly processes. The QFS-026-04.25-L-D-A in Tray packaging is suitable for manual assembly, lower-volume production runs, or applications where tape-and-reel handling equipment is unavailable.

Both parts satisfy ROHS3 compliance and MSL 1 requirements, ensuring compatibility with standard manufacturing and storage protocols. No additional qualification or testing is required when substituting between these packaging variants, provided the assembly process accommodates the selected packaging format.

Frequently Asked Questions (FAQ)

Q: Are QFS-026-04.25-L-D-A-TR and QFS-026-04.25-L-D-A electrically identical?

A: Yes. Both parts are functionally equivalent with identical electrical specifications, contact configurations, and performance characteristics. The only difference is packaging format.

Q: What is the primary difference between Tape & Reel and Tray packaging?

A: Tape & Reel (TR) packaging is designed for automated assembly equipment with pick-and-place capability. Tray packaging is used for manual assembly or in environments without automated tape-feeding systems. Both formats contain the same connector components.

Q: Can I substitute QFS-026-04.25-L-D-A for QFS-026-04.25-L-D-A-TR in production?

A: Substitution is possible if your assembly process supports Tray packaging. Verify that your pick-and-place equipment or manual assembly workflow can accommodate the alternative packaging format before implementing the change.

Q: Do both parts meet the same compliance standards?

A: Yes. Both QFS-026-04.25-L-D-A-TR and QFS-026-04.25-L-D-A are ROHS3 compliant with MSL 1 rating. No additional compliance verification is required when switching between these part numbers.

Q: Which part should I select for high-volume automated assembly?

A: The QFS-026-04.25-L-D-A-TR (Tape & Reel) is the standard choice for high-volume automated assembly due to compatibility with pick-and-place equipment and tape feeders.

Q: Are there any dimensional differences between these parts?

A: No. Both parts have identical mechanical dimensions, including height above board (0.278"), mated stacking heights (10mm, 11mm, 14mm), and all other physical specifications.