QSS-025-01-L-D-A-K Equivalent & Substitute Parts

Part Overview

The QSS-025-01-L-D-A-K is a 50-position rectangular connector socket manufactured by Samtec Inc. as part of the Q Strip® QSS series. This surface mount connector features center strip contacts with gold plating and is designed for high-density interconnect applications. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to provide packaging flexibility and inventory availability options while maintaining identical electrical and mechanical specifications.

Substiute Parts

QSS-025-01-L-D-A-K

Samtec Inc.In Stock: 979QSS-025-01-L-D-A-K Datasheet

Current PartRFQ

QSS-025-01-L-D-A-K-TR

Samtec Inc.In Stock: 2496QSS-025-01-L-D-A-K-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between QSS-025-01-L-D-A-K and QSS-025-01-L-D-A-K-TR is determined by the following critical parameters that remain identical across both parts:

• Number of Positions: 50
• Pitch: 0.025" (0.64mm)
• Number of Rows: 2
• Connector Type: Socket, Center Strip Contacts
• Mounting Type: Surface Mount
• Contact Finish: Gold
• Contact Finish Thickness: 10.0µin (0.25µm)
• Height Above Board: 0.143" (3.63mm)
• Features: Board Guide, Ground Bus (Plane), Pick and Place
• Series: Q Strip® QSS
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

The only difference between these parts is the packaging format: the main part is supplied in Tray packaging, while the substitute is supplied in Tape & Reel (TR) format. Both parts are electrically and mechanically equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both QSS-025-01-L-D-A-K and QSS-025-01-L-D-A-K-TR are active production parts with identical electrical and mechanical specifications. Selection between these parts is based on packaging requirements and assembly process compatibility.

The Tray packaging (QSS-025-01-L-D-A-K) is suitable for manual assembly operations and lower-volume production runs. The Tape & Reel packaging (QSS-025-01-L-D-A-K-TR) is optimized for automated pick-and-place assembly processes and high-volume manufacturing.

Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The MSL 1 rating indicates unlimited shelf life under standard storage conditions.

Frequently Asked Questions (FAQ)

Q: Are QSS-025-01-L-D-A-K and QSS-025-01-L-D-A-K-TR electrically identical?

A: Yes. Both parts have identical electrical specifications including 50 positions, 0.025" pitch, gold contact finish at 10.0µin thickness, and all functional features. The only difference is packaging format.

Q: What is the difference between Tray and Tape & Reel packaging?

A: Tray packaging is used for manual handling and lower-volume applications. Tape & Reel packaging is designed for automated pick-and-place equipment and high-volume production. The connector itself is identical in both formats.

Q: Can I use QSS-025-01-L-D-A-K-TR in place of QSS-025-01-L-D-A-K?

A: Yes, provided your assembly process supports Tape & Reel format. The connectors are mechanically and electrically equivalent. Verify that your pick-and-place equipment is compatible with the Tape & Reel packaging format.

Q: Are both parts compliant with current regulations?

A: Yes. Both QSS-025-01-L-D-A-K and QSS-025-01-L-D-A-K-TR are ROHS3 compliant and REACH unaffected. Both parts are active in production.

Q: What does MSL 1 mean for storage and handling?

A: MSL 1 indicates unlimited moisture sensitivity level, meaning the parts have no moisture-related storage restrictions. Standard storage conditions are sufficient.