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

Part Overview

The QSS-025-01-L-D-A-TR is a 50-position rectangular connector socket manufactured by Samtec Inc. as part of the Q Strip® QSS series. This surface mount component features center strip contacts with gold plating and is designed for high-density interconnect applications. The part is currently in active production status with 681 units available in tape and reel packaging. Substitute parts are identified when packaging format differs while maintaining identical electrical and mechanical specifications, allowing for alternative sourcing and inventory management.

Substiute Parts

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

Samtec Inc.In Stock: 777QSS-025-01-L-D-A-TR Datasheet

Current PartRFQ

QSS-025-01-L-D-A

Samtec Inc.In Stock: 2750QSS-025-01-L-D-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QSS-025-01-L-D-A-TR is determined by equivalence across the following critical parameters:

• 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 with 10.0µin thickness
• Mated stacking height: 5mm
• Height above board: 0.143" (3.63mm)
• Features: Board Guide, Ground Bus (Plane)
• RoHS and MSL compliance levels

The primary variable distinguishing substitute parts is packaging format. The QSS-025-01-L-D-A-TR is supplied in tape and reel (TR) packaging, while equivalent alternatives may be available in tray or bulk formats. All electrical and mechanical characteristics remain identical across packaging variants within the same base product number (QSS-025).

Parameter Comparison

Engineering Selection Recommendations

Both the QSS-025-01-L-D-A-TR and QSS-025-01-L-D-A are active production components from Samtec Inc. with identical ROHS3 compliance and MSL Level 1 ratings. The parts are electrically and mechanically equivalent, with the distinction limited to packaging format.

Selection between these parts should be based on assembly process requirements and inventory logistics. Tape and reel packaging (TR suffix) is optimized for automated pick-and-place assembly operations. Tray packaging is suitable for manual assembly or alternative handling systems. Both formats contain the same connector specifications and are suitable for applications requiring 50-position, 0.025-inch pitch surface mount sockets with gold-plated center strip contacts.

Frequently Asked Questions (FAQ)

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

A: Yes. Both parts have identical electrical specifications including 50 positions, 0.025-inch pitch, gold contact finish at 10.0µin thickness, and surface mount configuration. The only difference is packaging format.

Q: Can I substitute QSS-025-01-L-D-A (tray) for QSS-025-01-L-D-A-TR (tape and reel) in automated assembly?

A: Substitution depends on your assembly equipment capabilities. Tape and reel packaging is designed for automated pick-and-place systems. Tray packaging requires manual feeding or compatible feeder systems. Verify your assembly process compatibility before substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both QSS-025-01-L-D-A-TR and QSS-025-01-L-D-A are ROHS3 compliant with MSL Level 1 (unlimited moisture sensitivity). They carry identical regulatory classifications (ECCN: EAR99, HTSUS: 8536.69.4040).

Q: What is the mechanical difference between these parts?

A: There is no mechanical difference. Both parts feature identical 50-position socket configuration, 0.025-inch pitch, 2-row layout, 0.143-inch height above board, board guide, and ground bus plane. Packaging format is the only variable.

Q: Which part should I select for high-volume production?

A: For high-volume automated assembly, QSS-025-01-L-D-A-TR (tape and reel) is the standard choice due to compatibility with pick-and-place equipment. The tray format (QSS-025-01-L-D-A) may be selected if your assembly process uses alternative feeding methods or if inventory availability is a priority factor.