QFSS-016-04.25-L-D-DP Equivalent & Substitute Parts

Part Overview

The QFSS-016-04.25-L-D-DP is a 32-position differential pair array connector manufactured by Samtec Inc. in the Q2™ QFSS series. This surface mount female connector features shielded construction with gold-plated contacts and is designed for high-density interconnect applications requiring differential signaling. The part maintains Active product status and is ROHS3 compliant. Substitute parts are identified when component availability is constrained, supply chain disruptions occur, or inventory levels require alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

QFSS-016-04.25-L-D-DP

Samtec Inc.In Stock: 1174QFSS-016-04.25-L-D-DP Datasheet

Current PartRFQ

QFSS-016-04.25-L-D-DP-A

Samtec Inc.In Stock: 980QFSS-016-04.25-L-D-DP-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QFSS-016-04.25-L-D-DP is determined by strict equivalence across the following critical parameters:

• Connector type: Differential Pair Array, Female
• Number of positions: 32
• Pitch: 0.025" (0.64mm)
• Number of rows: 2
• Mounting type: Surface Mount
• Contact finish: Gold at 10.0µin (0.25µm) thickness
• 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
• MSL rating: 1 (Unlimited)

The identified substitute part QFSS-016-04.25-L-D-DP-A maintains identical specifications across all electrical and mechanical parameters, differing only in packaging designation and internal manufacturing revision codes that do not affect form, fit, or function.

Parameter Comparison

Engineering Selection Recommendations

Both the QFSS-016-04.25-L-D-DP and QFSS-016-04.25-L-D-DP-A maintain Active product status with full ROHS3 compliance and unlimited moisture sensitivity rating. Selection between these parts should be based on inventory availability and supply chain requirements. The QFSS-016-04.25-L-D-DP-A variant is suitable for direct substitution in all applications where the primary part is specified, as all electrical performance characteristics, mechanical dimensions, and compliance certifications are identical. Both parts are manufactured by Samtec Inc. and belong to the same Q2™ QFSS series.

Frequently Asked Questions (FAQ)

Q: Can QFSS-016-04.25-L-D-DP-A be used as a direct replacement for QFSS-016-04.25-L-D-DP?

A: Yes. Both parts are electrically and mechanically identical. The suffix designation indicates a manufacturing revision that does not affect form, fit, or function. All specifications including connector type, position count, pitch, mounting configuration, contact finish, and compliance ratings are equivalent.

Q: What are the critical parameters that define substitution eligibility?

A: Substitution is valid when the following parameters match: connector type (Differential Pair Array, Female), position count (32), pitch (0.025"), row configuration (2), mounting type (Surface Mount), contact finish (Gold at 10.0µin), shielding features, stacking heights, and RoHS compliance level.

Q: Are there any differences in packaging or handling between these parts?

A: Both parts are supplied in Tray packaging. Moisture sensitivity level is identical at MSL 1 (Unlimited), indicating no special storage or handling requirements beyond standard component care.

Q: What is the base product number for this connector family?

A: The base product number is QFSS-016, which identifies the core connector platform within the Q2™ QFSS series.

Q: Are both parts suitable for high-density differential signaling applications?

A: Yes. Both parts feature identical shielding, ground bus plane construction, and gold contact finish specifications required for differential pair array applications.