QFSS-026-04.25-L-D-GP Equivalent & Substitute Parts

Part Overview

The QFSS-026-04.25-L-D-GP is a 52-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, a 0.025" pitch, dual-row configuration, and integrated shielding with ground bus plane. The connector maintains an active product status with full RoHS3 compliance and MSL 1 rating. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical performance.

Substiute Parts

QFSS-026-04.25-L-D-GP

Samtec Inc.In Stock: 1089QFSS-026-04.25-L-D-GP Datasheet

Current PartRFQ

QFSS-026-04.25-L-D-A

Samtec Inc.In Stock: 976QFSS-026-04.25-L-D-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QFSS-026-04.25-L-D-GP is determined by strict equivalence across the following critical parameters:

• Number of positions: 52
• 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)
• Series: Q2™ QFSS
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. Variations in any of these parameters disqualify a part from substitution consideration.

Parameter Comparison

Engineering Selection Recommendations

Both the QFSS-026-04.25-L-D-GP and QFSS-026-04.25-L-D-A maintain active product status with full RoHS3 compliance and MSL 1 rating. The parts are electrically and mechanically identical across all specified parameters. Selection between these parts may be based on inventory availability and procurement lead times. The QFSS-026-04.25-L-D-GP currently maintains higher stock levels at 1011 pieces, while the QFSS-026-04.25-L-D-A has 910 pieces available. Both parts satisfy identical application requirements for 52-position surface mount rectangular connectors with shielded center strip contacts.

Frequently Asked Questions (FAQ)

Q: Can QFSS-026-04.25-L-D-A be used as a direct replacement for QFSS-026-04.25-L-D-GP?

A: Yes. Both parts are parametric equivalents meeting identical electrical and mechanical specifications across all critical parameters including position count, pitch, row configuration, mounting type, contact finish, shielding features, and compliance certifications.

Q: Are there any differences in contact finish between these parts?

A: No. Both parts feature gold contact finish with identical thickness of 10.0µin (0.25µm).

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both parts are ROHS3 compliant with MSL 1 rating (unlimited moisture sensitivity level) and maintain active product status.

Q: What is the significance of the part number suffix difference between -GP and -A?

A: The suffix indicates internal Samtec designation. Both suffixes represent the same connector configuration with identical electrical and mechanical performance for the QFSS-026-04.25-L-D series.

Q: Are the mated stacking heights and board heights identical?

A: Yes. Both parts maintain 11mm mated stacking height and 0.278" (7.06mm) height above board.

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

A: Yes. The parts are mechanically and electrically interchangeable with identical footprints, mounting requirements, and performance characteristics.