QFSS-026-04.25-L-D-PC4-P Equivalent & Substitute Parts

Part Overview

The QFSS-026-04.25-L-D-PC4-P is a 60-position rectangular connector receptacle from Samtec Inc.'s Q2™ QFSS series. This surface mount connector features center strip contacts with shielding, designed for high-density interconnect applications requiring 52 signal positions plus 8 dedicated power pins. The part is Active status and ROHS3 compliant, making it suitable for current production environments. Equivalent and substitute parts are identified when identical electrical and mechanical parameters are maintained across the connector family, ensuring direct interchangeability in PCB assembly and system integration.

Substiute Parts

QFSS-026-04.25-L-D-PC4-P

Samtec Inc.In Stock: 1132QFSS-026-04.25-L-D-PC4-P Datasheet

Current PartRFQ

QFSS-026-04.25-L-D-PC4

Samtec Inc.In Stock: 1106QFSS-026-04.25-L-D-PC4 Datasheet

Parametric EquivalentRFQ

QFSS-026-04.25-L-D-PT4

Samtec Inc.In Stock: 847QFSS-026-04.25-L-D-PT4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the QFSS-026-04.25-L-D-PC4-P are identified based on strict equivalence of the following critical parameters:

• Number of positions: 60 (52 signal + 8 power)
• Pitch: 0.025" (0.64mm)
• Number of rows: 2
• Mounting type: Surface Mount
• Connector type: Receptacle, Center Strip Contacts
• Contact finish: Gold at 10.0µin (0.25µm)
• Features: Board Guide, Ground Bus (Plane), Power Pins (8), Shielded
• Mated stacking height: 11mm
• Height above board: 0.278" (7.06mm)
• Base product number: QFSS-026
• RoHS status: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

The identified substitutes maintain all electrical and mechanical parameters, differing only in packaging configuration or connector interface designation, which do not affect functional interchangeability in equivalent applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—QFSS-026-04.25-L-D-PC4-P, QFSS-026-04.25-L-D-PC4, and QFSS-026-04.25-L-D-PT4—are Active status products from Samtec Inc. and maintain ROHS3 compliance. Selection among these equivalents should be based on:

• Packaging availability and supply chain requirements
• Connector interface designation compatibility with mating components
• Inventory levels and lead time considerations
• PCB assembly process specifications

All parts meet identical electrical and mechanical specifications for 60-position, 0.025" pitch surface mount rectangular connector applications with shielding and power pin configuration.

Frequently Asked Questions (FAQ)

Q: Are QFSS-026-04.25-L-D-PC4-P, QFSS-026-04.25-L-D-PC4, and QFSS-026-04.25-L-D-PT4 directly interchangeable?

A: Yes. All three parts maintain identical electrical and mechanical parameters, including position count, pitch, mounting type, contact finish, and stacking height. Differences in part number designation do not affect functional interchangeability in equivalent applications.

Q: What determines substitutability for QFSS-026 series connectors?

A: Substitutability is determined by equivalence in the following parameters: number of positions (60 with 52 signal + 8 power configuration), pitch (0.025"), row count (2), mounting type (Surface Mount), connector type (Receptacle with Center Strip Contacts), contact finish (Gold at 10.0µin), and mechanical features (Board Guide, Ground Bus, Shielding). All three listed parts meet these criteria.

Q: Can I use QFSS-026-04.25-L-D-PT4 as a substitute if my design specifies QFSS-026-04.25-L-D-PC4-P?

A: Yes. Both parts are equivalent within the QFSS-026 family and maintain all critical electrical and mechanical specifications. Verify mating component compatibility with the specific connector interface designation if required by your assembly process.

Q: What is the significance of the "-P" suffix in QFSS-026-04.25-L-D-PC4-P?

A: The "-P" suffix indicates packaging configuration. All three parts are supplied in Tray packaging and are functionally equivalent for connector applications.

Q: Are all three parts ROHS3 compliant?

A: Yes. QFSS-026-04.25-L-D-PC4-P, QFSS-026-04.25-L-D-PC4, and QFSS-026-04.25-L-D-PT4 are all ROHS3 compliant with MSL rating of 1 (Unlimited).