QFSS-052-04.25-L-D-A-P Equivalent & Substitute Parts

Part Overview

The QFSS-052-04.25-L-D-A-P is a 104-position rectangular connector receptacle manufactured by Samtec Inc. as part of the Q2™ QFSS series. This surface mount connector features center strip contacts with gold plating, board guide, ground bus plane, and shielding. The component is classified as Active product status and is ROHS3 compliant with MSL 1 rating. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector specification.

Substiute Parts

QFSS-052-04.25-L-D-A-P

Samtec Inc.In Stock: 777QFSS-052-04.25-L-D-A-P Datasheet

Current PartRFQ

QFSS-052-04.25-L-D-A

Samtec Inc.In Stock: 1086QFSS-052-04.25-L-D-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QFSS-052-04.25-L-D-A-P is determined by strict equivalence across the following critical parameters:

• Number of Positions: 104
• 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)
• Features: Board Guide, Ground Bus (Plane), Shielded
• Mated Stacking Height: 11mm
• Height Above Board: 0.278" (7.06mm)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The identified substitute maintains all electrical and mechanical parameters within the Q2™ QFSS series, ensuring functional and physical compatibility in applications requiring this connector specification.

Parameter Comparison

Engineering Selection Recommendations

Both the QFSS-052-04.25-L-D-A-P and QFSS-052-04.25-L-D-A maintain Active product status within the Samtec Q2™ QFSS series. Both components are ROHS3 compliant and carry identical ECCN and HTSUS classifications. The substitute part is suitable for applications requiring the specified 104-position, 0.025" pitch rectangular connector with surface mount configuration, gold contact finish, and shielded design. Component selection between these parts may be based on inventory availability and packaging considerations, as all electrical and mechanical specifications are equivalent.

Frequently Asked Questions (FAQ)

Q: What determines if QFSS-052-04.25-L-D-A can substitute for QFSS-052-04.25-L-D-A-P?

A: Substitution is valid when all critical parameters match: 104 positions, 0.025" pitch, 2 rows, receptacle with center strip contacts, surface mount configuration, gold contact finish at 10.0µin thickness, board guide, ground bus plane, shielding, 11mm mated stacking height, 0.278" height above board, ROHS3 compliance, and MSL 1 rating. Both parts meet these criteria.

Q: Are there differences in packaging between these parts?

A: Both parts are supplied in Tray packaging. Packaging format does not affect electrical or mechanical compatibility.

Q: Can these connectors be used interchangeably in PCB assembly?

A: Yes. Both parts are surface mount receptacles with identical position count, pitch, row configuration, contact finish, and mechanical dimensions. They are functionally and physically interchangeable.

Q: What is the significance of the part number suffix difference?

A: The suffix variation does not indicate a change in the core electrical or mechanical specifications listed in this reference. Both parts maintain equivalent performance characteristics within the Q2™ QFSS series.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the QFSS-052-04.25-L-D-A-P and QFSS-052-04.25-L-D-A are ROHS3 compliant with MSL 1 rating and carry identical ECCN and HTSUS classifications.