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QTS-025-01-F-D-A-K Equivalent & Substitute Parts
Part Overview
The QTS-025-01-F-D-A-K is a 50-position connector header manufactured by Samtec Inc. as part of the Q Strip® QTS series. This surface mount component features outer shroud contacts with gold plating and is designed for applications requiring high-density interconnection with board-level guidance and ground plane integration. The part maintains Active product status and is ROHS3 compliant. Substitute parts are identified when packaging configurations differ while maintaining identical electrical and mechanical specifications, enabling flexibility in procurement and assembly workflows.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Manufacturer Part Number | QTS-025-01-F-D-A-K |
| Manufacturer | Samtec Inc. |
| Series | Q Strip® QTS |
| Number of Positions | 50 |
| Pitch | 0.025" (0.64mm) |
| Number of Rows | 2 |
| Connector Type | Header, Outer Shroud Contacts |
| Mounting Type | Surface Mount |
| Contact Finish | Gold |
| Contact Finish Thickness | 3.00µin (0.076µm) |
| Height Above Board | 0.160" (4.06mm) |
| Mated Stacking Height | 5mm |
| Features | Board Guide, Ground Bus (Plane), Pick and Place |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitute parts for the QTS-025-01-F-D-A-K are identified based on equivalence in the following critical parameters:
- Number of positions (50)
- Pitch specification (0.025" / 0.64mm)
- Number of rows (2)
- Connector type (Header, Outer Shroud Contacts)
- Mounting type (Surface Mount)
- Contact finish and thickness (Gold, 3.00µin)
- Height above board (0.160" / 4.06mm)
- Mated stacking height (5mm)
- Series designation (Q Strip® QTS)
- Compliance certifications (ROHS3, MSL 1)
The primary variable distinguishing substitute parts is packaging configuration. The QTS-025-01-F-D-A-K is supplied in Tray packaging, while equivalent parts may be available in alternative packaging formats such as Tape & Reel (TR). All electrical and mechanical parameters remain identical across packaging variants.
Parameter Comparison
| Parameter | QTS-025-01-F-D-A-K (Tray) | QTS-025-01-F-D-A-K-TR (Tape & Reel) |
|---|---|---|
| Manufacturer Part Number | QTS-025-01-F-D-A-K | QTS-025-01-F-D-A-K-TR |
| Packaging | Tray | Tape & Reel (TR) |
| Number of Positions | 50 | 50 |
| Pitch | 0.025" (0.64mm) | 0.025" (0.64mm) |
| Number of Rows | 2 | 2 |
| Connector Type | Header, Outer Shroud Contacts | Header, Outer Shroud Contacts |
| Mounting Type | Surface Mount | Surface Mount |
| Contact Finish | Gold | Gold |
| Contact Finish Thickness | 3.00µin (0.076µm) | 3.00µin (0.076µm) |
| Height Above Board | 0.160" (4.06mm) | 0.160" (4.06mm) |
| Mated Stacking Height | 5mm | 5mm |
| Features | Board Guide, Ground Bus (Plane), Pick and Place | Board Guide, Ground Bus (Plane), Pick and Place |
| Series | Q Strip® QTS | Q Strip® QTS |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active |
Engineering Selection Recommendations
Both the QTS-025-01-F-D-A-K and QTS-025-01-F-D-A-K-TR are Active products with identical electrical and mechanical specifications. Selection between these parts is determined by assembly process requirements and packaging compatibility with automated handling equipment.
The Tray packaging (QTS-025-01-F-D-A-K) is suitable for manual assembly operations and lower-volume production runs. The Tape & Reel packaging (QTS-025-01-F-D-A-K-TR) is optimized for high-speed automated pick-and-place assembly and high-volume manufacturing environments.
Both variants maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard reflow soldering processes without moisture bake-out requirements. Component selection should be based on production volume, assembly automation capability, and supply chain logistics rather than functional performance.
Frequently Asked Questions (FAQ)
Q: Are QTS-025-01-F-D-A-K and QTS-025-01-F-D-A-K-TR electrically and mechanically identical?
A: Yes. Both parts are functionally equivalent with identical pin count (50), pitch (0.025"), connector type, mounting specifications, contact finish, and board height. The only difference is packaging format.
Q: What is the primary reason to choose Tape & Reel packaging over Tray?
A: Tape & Reel packaging is designed for automated assembly lines with pick-and-place equipment. Tray packaging is suitable for manual assembly or lower-volume applications.
Q: Can these parts be used interchangeably in PCB design?
A: Yes. Both parts use identical footprints and electrical characteristics. PCB design files do not require modification when substituting between packaging variants.
Q: Are there any compliance or certification differences between the two packaging options?
A: No. Both variants maintain ROHS3 compliance, MSL 1 rating, and identical regulatory certifications. Packaging format does not affect compliance status.
Q: What is the significance of the outer shroud contacts feature?
A: Outer shroud contacts provide mechanical guidance and polarization during mating, reducing insertion errors and improving connector reliability in high-density applications.
Q: Does the 0.025" pitch specification affect component selection?
A: The 0.025" (0.64mm) pitch is a defining characteristic of the QTS series. This specification must match exactly for mechanical and electrical compatibility. Parts with different pitch values are not substitutable.
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