QTS-025-01-L-D-LC Equivalent & Substitute Parts

Part Overview

The QTS-025-01-L-D-LC is a 50-position connector header manufactured by Samtec Inc., featuring outer shroud contacts and surface mount gold plating. This component is classified as a rectangular connector within the Q Strip® QTS series and maintains Active product status. The part is ROHS3 compliant with MSL 1 rating, indicating unlimited moisture sensitivity tolerance. Identifying equivalent and substitute parts becomes necessary when managing inventory constraints, lead time optimization, or when design flexibility permits the use of compatible connector configurations within the same electrical and mechanical specifications.

Substiute Parts

QTS-025-01-L-D-LC

Samtec Inc.In Stock: 741QTS-025-01-L-D-LC 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 QTS-025-01-L-D-LC is determined by the following critical parameters:

• Connector Position Count: 50 positions (fixed requirement)
• Pitch Specification: 0.025" (0.64mm) (fixed requirement)
• Row Configuration: 2 rows (fixed requirement)
• Mounting Technology: Surface Mount (fixed requirement)
• Contact Finish Material: Gold plating (fixed requirement)
• Contact Finish Thickness: 10.0µin (0.25µm) (fixed requirement)
• Compliance Standards: ROHS3 Compliant, MSL 1, REACH Unaffected (fixed requirement)

The QSS-025-01-L-D-A qualifies as a substitute part because it maintains identical specifications across all critical electrical and mechanical parameters. The primary functional difference lies in the connector type designation: the QTS-025-01-L-D-LC features outer shroud contacts (header configuration), while the QSS-025-01-L-D-A features center strip contacts (socket configuration). Both parts operate within the same pitch, position count, and mounting specifications, enabling interchangeability in applications where the connector gender and contact arrangement can be accommodated by the mating design.

Parameter Comparison

Engineering Selection Recommendations

Both the QTS-025-01-L-D-LC and QSS-025-01-L-D-A maintain Active product status with full ROHS3 compliance and REACH unaffected certification. Selection between these parts depends on connector gender requirements and mating interface design. The QTS-025-01-L-D-LC header configuration pairs with socket receptacles, while the QSS-025-01-L-D-A socket configuration pairs with header pins. Both parts satisfy identical electrical performance and environmental compliance requirements. The 0.017" (0.43mm) difference in height above board between the two parts may require PCB layout verification in space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can QSS-025-01-L-D-A replace QTS-025-01-L-D-LC in all applications?

A: Substitution is possible only when the mating connector interface can accommodate the socket configuration of the QSS-025-01-L-D-A. The connector gender (header versus socket) must align with the corresponding mating part design.

Q: What is the difference between outer shroud and center strip contact configurations?

A: The QTS-025-01-L-D-LC features outer shroud contacts (header type), while the QSS-025-01-L-D-A features center strip contacts (socket type). Both configurations maintain the same 50-position, 0.025" pitch specification and surface mount technology.

Q: Are there height differences that affect PCB layout?

A: Yes. The QTS-025-01-L-D-LC has a height above board of 0.160" (4.06mm), while the QSS-025-01-L-D-A measures 0.143" (3.63mm). This 0.017" difference may impact clearance in applications with vertical space constraints.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the QTS-025-01-L-D-LC and QSS-025-01-L-D-A are ROHS3 compliant, carry MSL 1 rating, and are REACH unaffected.

Q: What is the mated stacking height specification?

A: The QTS-025-01-L-D-LC specifies a mated stacking height of 5mm. The QSS-025-01-L-D-A does not list a mated stacking height value in the provided specifications.