QFS-026-04.25-L-D-RF1 Equivalent & Substitute Parts

Part Overview

The QFS-026-04.25-L-D-RF1 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 integrated RF jacks and gold plating, designed for high-density interconnect applications. The part maintains Active product status and is ROHS3 compliant. Substitute parts are identified to address packaging format requirements and inventory availability while maintaining identical electrical and mechanical specifications.

Substiute Parts

QFS-026-04.25-L-D-RF1

Samtec Inc.In Stock: 820QFS-026-04.25-L-D-RF1 Datasheet

Current PartRFQ

QFS-026-04.25-L-D-RF1-TR

Samtec Inc.In Stock: 717QFS-026-04.25-L-D-RF1-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the QFS-026-04.25-L-D-RF1 are identified based on identical electrical and mechanical parameters. The primary differentiator between the main part and its substitute is the packaging format. Both parts maintain the same connector specifications including position count, pitch, mounting type, contact finish, and physical dimensions. The substitute relationship is determined by the following key parameters that must remain constant:

• Number of Positions: 54 (52 + 2 RF Jacks)
• Pitch: 0.025" (0.64mm)
• Connector Type: Receptacle, Center Strip Contacts
• Mounting Type: Surface Mount
• Contact Finish: Gold at 10.0µin (0.25µm)
• Height Above Board: 0.293" (7.45mm)
• Features: Board Guide, Ground Bus (Plane), RF Jacks (2)
• Series: RF Q2™ QFS
• RoHS Status: ROHS3 Compliant

The QFS-026-04.25-L-D-RF1-TR substitute differs only in packaging format (Tape & Reel versus Tray), making it functionally equivalent for component selection purposes.

Parameter Comparison

Engineering Selection Recommendations

Both QFS-026-04.25-L-D-RF1 and QFS-026-04.25-L-D-RF1-TR are Active products from Samtec Inc. with identical electrical and mechanical specifications. Selection between these parts is determined by packaging and supply chain requirements rather than functional performance. The Tray packaging format (QFS-026-04.25-L-D-RF1) is suitable for lower-volume applications and manual assembly processes. The Tape & Reel format (QFS-026-04.25-L-D-RF1-TR) is optimized for high-volume automated assembly operations. Both parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing processes and long-term storage without moisture sensitivity constraints.

Frequently Asked Questions (FAQ)

Q: Are QFS-026-04.25-L-D-RF1 and QFS-026-04.25-L-D-RF1-TR electrically identical?

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

Q: What is the primary difference between these substitute parts?

A: The QFS-026-04.25-L-D-RF1 is supplied in Tray packaging, while the QFS-026-04.25-L-D-RF1-TR is supplied in Tape & Reel format. This affects handling, storage, and automated assembly compatibility.

Q: Can I use QFS-026-04.25-L-D-RF1-TR in place of QFS-026-04.25-L-D-RF1 on my PCB?

A: Yes. Both parts have identical mounting footprints, pitch, position count, and physical dimensions. PCB design and assembly parameters remain unchanged.

Q: Are both parts ROHS3 compliant?

A: Yes. Both QFS-026-04.25-L-D-RF1 and QFS-026-04.25-L-D-RF1-TR are ROHS3 compliant with MSL 1 rating.

Q: Which packaging format should I select for high-volume production?

A: The Tape & Reel format (QFS-026-04.25-L-D-RF1-TR) is designed for automated pick-and-place assembly and is the standard choice for high-volume manufacturing.

Q: What are the mated stacking height options?

A: Both parts support mated stacking heights of 10mm, 11mm, and 14mm, allowing flexibility in connector stack configurations.