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QFS-026-04.25-L-D-A-RT1-TR Equivalent & Substitute Parts
Part Overview
The QFS-026-04.25-L-D-A-RT1-TR is a 54-position rectangular connector receptacle manufactured by Samtec Inc. as part of the RF Q2™ QFS series. This surface mount connector features center strip contacts with gold plating and integrated RF jacks, designed for high-density interconnect applications requiring controlled pitch and reliable RF performance. The part is Active status and ROHS3 compliant, making it suitable for current production environments. Substitute parts are identified when packaging or inventory requirements necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Manufacturer Part Number | QFS-026-04.25-L-D-A-RT1-TR |
| Manufacturer | Samtec Inc. |
| Series | RF Q2™ QFS |
| Number of Positions | 54 (52 + 2 RF Jacks) |
| 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 | 0.278" (7.06mm) |
| Mated Stacking Heights | 10mm, 11mm, 14mm |
| Features | Board Guide, Ground Bus (Plane), RF Jacks (2) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Active |
| Packaging | Tape & Reel (TR) |
Substitute Part Grouping Explanation
Substitute parts for the QFS-026-04.25-L-D-A-RT1-TR are identified based on electrical and mechanical parameter equivalence within the RF Q2™ QFS series. The critical parameters determining substitutability are:
- Number of positions: 54 (52 + 2 RF Jacks)
- Pitch: 0.025" (0.64mm)
- Number of rows: 2
- Connector type: Receptacle, Center Strip Contacts
- Mounting type: Surface Mount
- Contact finish: Gold at 10.0µin (0.25µm)
- Height above board: 0.278" (7.06mm)
- Mated stacking heights: 10mm, 11mm, 14mm
- Features: Board Guide, Ground Bus (Plane), RF Jacks (2)
- RoHS compliance: ROHS3
The QFS-026-04.25-L-D-A-RT1 variant differs only in packaging format (Tray versus Tape & Reel), which does not affect electrical or mechanical performance. Both parts share identical base product number QFS-026 and all functional specifications.
Parameter Comparison
| Parameter | QFS-026-04.25-L-D-A-RT1-TR (Main) | QFS-026-04.25-L-D-A-RT1 (Substitute) |
|---|---|---|
| Manufacturer Part Number | QFS-026-04.25-L-D-A-RT1-TR | QFS-026-04.25-L-D-A-RT1 |
| Manufacturer | Samtec Inc. | Samtec Inc. |
| Series | RF Q2™ QFS | RF Q2™ QFS |
| Number of Positions | 54 (52 + 2 RF Jacks) | 54 (52 + 2 RF Jacks) |
| 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 | 0.278" (7.06mm) | 0.278" (7.06mm) |
| Mated Stacking Heights | 10mm, 11mm, 14mm | 10mm, 11mm, 14mm |
| Features | Board Guide, Ground Bus (Plane), RF Jacks (2) | Board Guide, Ground Bus (Plane), RF Jacks (2) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active |
| Packaging | Tape & Reel (TR) | Tray |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8536.69.4040 | 8536.69.4040 |
Engineering Selection Recommendations
Both the QFS-026-04.25-L-D-A-RT1-TR and QFS-026-04.25-L-D-A-RT1 are Active status components from Samtec Inc. with identical electrical and mechanical specifications. Selection between these parts is determined by packaging and supply chain requirements:
- QFS-026-04.25-L-D-A-RT1-TR: Tape & Reel packaging suitable for automated assembly processes
- QFS-026-04.25-L-D-A-RT1: Tray packaging suitable for manual assembly or alternative handling requirements
Both parts maintain ROHS3 compliance, EAR99 export classification, and identical HTSUS coding. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints for either variant. Component selection should be based on manufacturing process requirements and inventory management protocols rather than technical performance differences.
Frequently Asked Questions (FAQ)
Q: Are QFS-026-04.25-L-D-A-RT1-TR and QFS-026-04.25-L-D-A-RT1 electrically identical?
A: Yes. Both parts share identical electrical specifications including position count, pitch, contact finish, and RF jack configuration. They differ only in packaging format.
Q: What is the difference between Tape & Reel and Tray packaging?
A: Tape & Reel (TR) packaging is designed for automated pick-and-place assembly equipment. Tray packaging is used for manual assembly or alternative handling methods. The connector itself is functionally identical.
Q: Can I substitute QFS-026-04.25-L-D-A-RT1 for QFS-026-04.25-L-D-A-RT1-TR in production?
A: Substitution is possible from an electrical and mechanical standpoint. However, packaging format compatibility with your assembly process must be confirmed. Automated assembly lines typically require Tape & Reel format.
Q: Are both parts RoHS compliant?
A: Yes. Both QFS-026-04.25-L-D-A-RT1-TR and QFS-026-04.25-L-D-A-RT1 are ROHS3 compliant.
Q: What is the moisture sensitivity level for these connectors?
A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling.
Q: Do these parts have any export restrictions?
A: Both parts are classified as EAR99, which is the most permissive export classification category.
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