QFSS-026-04.25-H-D-PT4 Equivalent & Substitute Parts

Part Overview

The QFSS-026-04.25-H-D-PT4 is a 60-position rectangular connector receptacle manufactured by Samtec Inc. as part of the Q2™ QFSS series. This surface mount connector features center strip contacts with shielding, a ground bus plane, and dedicated power pins. The part is actively produced and stocked at 1103 units in new original condition. Equivalent substitute parts are identified when identical electrical and mechanical parameters are maintained across the connector family, ensuring direct interchangeability in applications requiring this specific connector configuration.

Substiute Parts

QFSS-026-04.25-H-D-PT4

Samtec Inc.In Stock: 1195QFSS-026-04.25-H-D-PT4 Datasheet

Current PartRFQ

QFSS-026-04.25-H-D-PC4

Samtec Inc.In Stock: 930QFSS-026-04.25-H-D-PC4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the QFSS-026-04.25-H-D-PT4 are identified based on strict equivalence of the following critical parameters:

• Number of positions: 60 (52 + 8 Power)
• Pitch: 0.025" (0.64mm)
• Number of rows: 2
• Connector type: Receptacle, Center Strip Contacts
• Mounting type: Surface Mount
• Contact finish: Gold at 30.0µin (0.76µm)
• Features: Board Guide, Ground Bus (Plane), Power Pins (8), Shielded
• Mated stacking height: 11mm
• Height above board: 0.278" (7.06mm)
• Series: Q2™ QFSS
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

The substitute part QFSS-026-04.25-H-D-PC4 maintains all these parameters identically, differing only in packaging designation (PC4 versus PT4), which does not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the QFSS-026-04.25-H-D-PT4 and QFSS-026-04.25-H-D-PC4 are active products with full ROHS3 compliance and unlimited moisture sensitivity rating. Selection between these parts should be based on packaging requirements and inventory availability. The PT4 variant has higher stock availability at 1103 units, while the PC4 variant maintains 890 units. Both parts meet identical electrical and mechanical specifications for direct substitution in surface mount applications requiring 60-position rectangular connectors with 0.025" pitch and shielded center strip contacts.

Frequently Asked Questions (FAQ)

Q: Can QFSS-026-04.25-H-D-PC4 be used as a direct replacement for QFSS-026-04.25-H-D-PT4?

A: Yes. Both parts are electrically and mechanically identical. The difference between PT4 and PC4 designations refers to packaging format only and does not affect connector performance or compatibility.

Q: What is the significance of the 60-position configuration with 52 + 8 Power designation?

A: The connector contains 52 signal positions and 8 dedicated power pins. This configuration is maintained identically across both substitute parts.

Q: Are both parts suitable for high-reliability applications?

A: Both parts carry ROHS3 compliance and MSL 1 (Unlimited) rating, indicating suitability for applications without moisture sensitivity constraints. Both are active products from Samtec Inc.

Q: What is the pitch specification and why is it important for substitution?

A: The pitch is 0.025" (0.64mm), representing the center-to-center distance between adjacent contacts. This parameter must remain identical for mechanical and electrical compatibility. Both substitute parts maintain this specification.

Q: How do the contact finish specifications compare?

A: Both parts feature gold contact finish at 30.0µin (0.76µm) thickness, ensuring identical electrical performance and mating characteristics.

Q: What mounting considerations apply to both parts?

A: Both are surface mount connectors with identical board height of 0.278" (7.06mm) and mated stacking height of 11mm. They include board guide features and ground bus plane for consistent PCB integration.