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

Part Overview

The QFSS-026-04.25-L-D-A-TR is a 52-position rectangular connector receptacle from Samtec Inc.'s Q2™ QFSS series. This surface mount connector features center strip contacts with gold plating, designed for high-density interconnect applications requiring shielded signal transmission. The part is Active status and ROHS3 compliant, making it suitable for current production environments. Equivalent and substitute parts are identified when packaging or contact configuration variants become necessary for supply chain optimization or specific assembly requirements.

Substiute Parts

QFSS-026-04.25-L-D-A-TR

Samtec Inc.In Stock: 792QFSS-026-04.25-L-D-A-TR Datasheet

Current PartRFQ

QFSS-026-04.25-L-D-A

Samtec Inc.In Stock: 976QFSS-026-04.25-L-D-A Datasheet

SimilarRFQ

QFSS-026-04.25-L-D-A-P-TR

Samtec Inc.In Stock: 1217QFSS-026-04.25-L-D-A-P-TR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the QFSS-026-04.25-L-D-A-TR are identified based on electrical and mechanical parameter equivalence within the Q2™ QFSS series. The critical parameters determining substitutability are:

• Number of positions (52)
• Pitch spacing (0.025" / 0.64mm)
• Number of rows (2)
• Connector type (Receptacle, Center Strip Contacts)
• Mounting type (Surface Mount)
• Contact finish (Gold, 10.0µin thickness)
• Mated stacking height (11mm)
• Height above board (0.278" / 7.06mm)
• Features (Board Guide, Ground Bus, Shielded)

Substitutes differ only in packaging format (Tape & Reel versus Tray) or minor contact configuration variants, while maintaining full electrical and mechanical compatibility. All substitutes retain Active product status and ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

All three parts—QFSS-026-04.25-L-D-A-TR, QFSS-026-04.25-L-D-A, and QFSS-026-04.25-L-D-A-P-TR—are electrically and mechanically equivalent. Selection between them is determined by packaging and supply chain requirements:

QFSS-026-04.25-L-D-A-TR and QFSS-026-04.25-L-D-A-P-TR are supplied in Tape & Reel format, suitable for automated assembly processes. QFSS-026-04.25-L-D-A is supplied in Tray format, suitable for manual assembly or lower-volume applications.

All parts maintain Active product status and ROHS3 compliance, ensuring compatibility with current manufacturing standards and regulatory requirements. Moisture Sensitivity Level 1 (Unlimited) indicates no special storage or handling precautions are required.

Frequently Asked Questions (FAQ)

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

A: Yes. Both parts are electrically and mechanically identical. The difference is packaging format: QFSS-026-04.25-L-D-A-TR uses Tape & Reel packaging, while QFSS-026-04.25-L-D-A uses Tray packaging. Selection depends on assembly process requirements.

Q: What is the difference between QFSS-026-04.25-L-D-A-P-TR and QFSS-026-04.25-L-D-A-TR?

A: Both use Tape & Reel packaging and are electrically equivalent. The "P" designation indicates a minor contact configuration variant. Both maintain identical electrical performance, pitch, position count, and mating characteristics.

Q: Are all three parts ROHS3 compliant?

A: Yes. QFSS-026-04.25-L-D-A-TR, QFSS-026-04.25-L-D-A, and QFSS-026-04.25-L-D-A-P-TR are all ROHS3 compliant.

Q: What packaging format should I select for high-volume automated assembly?

A: Tape & Reel format (QFSS-026-04.25-L-D-A-TR or QFSS-026-04.25-L-D-A-P-TR) is recommended for automated pick-and-place assembly operations.

Q: Is special handling required for these connectors?

A: No. Moisture Sensitivity Level 1 (Unlimited) indicates these parts require no special moisture control, storage, or handling precautions.

Q: Can these parts be used interchangeably in the same PCB design?

A: Yes. All three parts have identical electrical and mechanical specifications, including pitch, position count, mating height, and contact finish. PCB footprints and mating interfaces are identical.