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

Part Overview

The QFSS-016-04.25-L-D-DP-A-TR is a 32-position differential pair array connector manufactured by Samtec Inc. in the Q2™ QFSS series. This surface mount rectangular connector features shielding, a ground bus plane, and gold-plated contacts for high-speed differential signaling applications. The part is Active in product status and ROHS3 compliant. Substitute parts are identified when packaging or inventory requirements necessitate alternative configurations while maintaining identical electrical and mechanical specifications.

Substiute Parts

Key Parameters

Parameter Specification
Manufacturer Part Number QFSS-016-04.25-L-D-DP-A-TR
Manufacturer Samtec Inc.
Series Q2™ QFSS
Number of Positions 32
Pitch 0.025" (0.64mm)
Number of Rows 2
Connector Type Differential Pair Array, Female
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 (MSL) 1 (Unlimited)
Product Status Active

Substitute Part Grouping Explanation

Substitution eligibility for the QFSS-016-04.25-L-D-DP-A-TR is determined by strict equivalence in the following electrical and mechanical parameters:

  • Number of positions: 32
  • Pitch: 0.025" (0.64mm)
  • Number of rows: 2
  • Connector type: Differential Pair Array, Female
  • 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)
  • Base product number: QFSS-016
  • RoHS status: ROHS3 Compliant
  • MSL rating: 1 (Unlimited)

The only permitted variation is packaging format. The main part is supplied in Tape & Reel (TR) format, while substitute parts may be supplied in alternative packaging such as Tray, provided all other specifications remain identical.

Parameter Comparison

Parameter QFSS-016-04.25-L-D-DP-A-TR (Main) QFSS-016-04.25-L-D-DP-A (Substitute)
Manufacturer Part Number QFSS-016-04.25-L-D-DP-A-TR QFSS-016-04.25-L-D-DP-A
Manufacturer Samtec Inc. Samtec Inc.
Series Q2™ QFSS Q2™ QFSS
Packaging Tape & Reel (TR) Tray
Number of Positions 32 32
Pitch 0.025" (0.64mm) 0.025" (0.64mm)
Number of Rows 2 2
Connector Type Differential Pair Array, Female Differential Pair Array, Female
Mounting Type Surface Mount Surface Mount
Contact Finish Gold Gold
Contact Finish Thickness 10.0µin (0.25µm) 10.0µin (0.25µm)
Features Board Guide, Ground Bus (Plane), Shielded Board Guide, Ground Bus (Plane), Shielded
Mated Stacking Height 11mm 11mm
Height Above Board 0.278" (7.06mm) 0.278" (7.06mm)
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
Product Status Active Active

Engineering Selection Recommendations

Both the QFSS-016-04.25-L-D-DP-A-TR and QFSS-016-04.25-L-D-DP-A are Active products from Samtec Inc. and maintain identical electrical and mechanical specifications. Selection between these parts is determined by packaging requirements and supply chain logistics.

The QFSS-016-04.25-L-D-DP-A-TR in Tape & Reel format is suitable for high-volume automated assembly operations. The QFSS-016-04.25-L-D-DP-A in Tray packaging accommodates alternative handling and assembly processes. Both parts carry ROHS3 compliance and MSL 1 rating, indicating compatibility with standard manufacturing environments and unlimited shelf life under controlled storage conditions.

Frequently Asked Questions (FAQ)

Q: Can QFSS-016-04.25-L-D-DP-A (Tray) be used as a direct replacement for QFSS-016-04.25-L-D-DP-A-TR (Tape & Reel)?

A: Yes. The electrical and mechanical specifications are identical. The difference is packaging format only. Tray packaging may require different handling procedures during assembly but does not affect component performance or compatibility.

Q: Are there any differences in contact quality or finish between the two parts?

A: No. Both parts feature identical gold contact finish at 10.0µin (0.25µm) thickness and are manufactured to the same specifications.

Q: What determines whether a part qualifies as a substitute for the QFSS-016-04.25-L-D-DP-A-TR?

A: Substitutes must maintain identical specifications for position count (32), pitch (0.025"), row configuration (2), connector type (Differential Pair Array, Female), mounting type (Surface Mount), contact finish (Gold), shielding features, stacking heights, and compliance ratings. Only packaging format may vary.

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

A: Yes. Both parts feature shielding and ground bus plane configurations designed for differential pair array applications. The identical mechanical and electrical specifications ensure equivalent performance in high-speed signal transmission.

Q: What is the significance of MSL 1 rating for these connectors?

A: MSL 1 indicates unlimited shelf life under controlled storage conditions. These parts do not require special moisture-sensitive device handling procedures and can be stored indefinitely without degradation when kept in standard industrial environments.

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