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QFS-026-06.25-SL-D-A-TR Equivalent & Substitute Parts
Part Overview
The QFS-026-06.25-SL-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 stocked, serving as a high-density interconnect solution for applications requiring reliable mated stacking at multiple heights. Substitute parts are identified when packaging or inventory constraints necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Manufacturer Part Number | QFS-026-06.25-SL-D-A-TR |
| Manufacturer | Samtec Inc. |
| Category | Rectangular Connectors |
| Series | Power Q2™ QFS |
| Number of Positions | 52 |
| Pitch | 0.025" (0.64mm) |
| Number of Rows | 2 |
| Connector Type | Receptacle, Center Strip Contacts |
| Mounting Type | Surface Mount |
| Contact Finish | Gold |
| Contact Finish Thickness | 10.0µin (0.25µm) |
| Height Above Board | 0.356" (9.04mm) |
| Mated Stacking Heights | 12mm, 13mm, 16mm |
| Features | Board Guide, Ground Bus (Plane) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility for the QFS-026-06.25-SL-D-A-TR is determined by strict equivalence across the following critical parameters:
- Connector type and contact configuration (Receptacle, Center Strip Contacts)
- Electrical specifications (52 positions, 0.025" pitch, 2 rows)
- Physical dimensions (Height above board: 0.356", mated stacking heights: 12mm, 13mm, 16mm)
- Contact material and finish (Gold, 10.0µin thickness)
- Mounting technology (Surface Mount)
- Functional features (Board Guide, Ground Bus)
- 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
| Parameter | QFS-026-06.25-SL-D-A-TR (Main) | QFS-026-06.25-SL-D-A (Substitute) |
|---|---|---|
| Manufacturer Part Number | QFS-026-06.25-SL-D-A-TR | QFS-026-06.25-SL-D-A |
| Packaging | Tape & Reel (TR) | Tray |
| Number of Positions | 52 | 52 |
| Pitch | 0.025" (0.64mm) | 0.025" (0.64mm) |
| Number of Rows | 2 | 2 |
| Connector Type | Receptacle, Center Strip Contacts | Receptacle, Center Strip Contacts |
| Mounting Type | Surface Mount | Surface Mount |
| Contact Finish | Gold | Gold |
| Contact Finish Thickness | 10.0µin (0.25µm) | 10.0µin (0.25µm) |
| Height Above Board | 0.356" (9.04mm) | 0.356" (9.04mm) |
| Mated Stacking Heights | 12mm, 13mm, 16mm | 12mm, 13mm, 16mm |
| Features | Board Guide, Ground Bus (Plane) | Board Guide, Ground Bus (Plane) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active |
Engineering Selection Recommendations
Both the QFS-026-06.25-SL-D-A-TR and QFS-026-06.25-SL-D-A are active products manufactured by Samtec Inc. and maintain identical electrical and mechanical specifications. Selection between these parts is determined by packaging and handling requirements:
The QFS-026-06.25-SL-D-A-TR in Tape & Reel packaging is suitable for automated assembly processes requiring continuous component feed. The QFS-026-06.25-SL-D-A in Tray packaging is suitable for manual assembly, lower-volume production, or applications where tape-based handling is not required.
Both parts satisfy ROHS3 compliance and MSL 1 requirements, ensuring compatibility with standard manufacturing and storage protocols. Inventory availability should be evaluated based on production timeline and volume requirements.
Frequently Asked Questions (FAQ)
Q: Can QFS-026-06.25-SL-D-A be used as a direct replacement for QFS-026-06.25-SL-D-A-TR?
A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Tray versus Tape & Reel). Selection depends on assembly process requirements and handling infrastructure.
Q: Does packaging format affect connector performance or reliability?
A: No. Packaging format is a logistics and manufacturing consideration only. Electrical performance, mechanical fit, and reliability characteristics are identical between the two parts.
Q: Are there any compliance or certification differences between these parts?
A: No. Both parts carry identical ROHS3 compliance and MSL 1 ratings. No additional testing or qualification is required when switching between these parts.
Q: What is the significance of the "-TR" suffix in the part number?
A: The "-TR" suffix designates Tape & Reel packaging format. Removal of this suffix indicates Tray packaging. All other specifications remain unchanged.
Q: Can these connectors be used interchangeably in the same PCB assembly?
A: Yes. Both parts have identical footprints, mating heights, and contact configurations. No PCB redesign or assembly process modification is required.
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