QMS-026-05.75-L-D-A-K Equivalent & Substitute Parts

Part Overview

The QMS-026-05.75-L-D-A-K is a 52-position connector header manufactured by Samtec Inc. within the Power Q2™ QMS series. This surface mount rectangular connector features outer shroud contacts with gold plating and is designed for high-density interconnect applications. The part is Active in product status and widely used in applications requiring reliable board-to-board or board-to-cable connections with compact pitch spacing.

Identifying equivalent and substitute parts is necessary when managing supply chain continuity, optimizing inventory levels, or accommodating packaging format requirements across manufacturing environments.

Substiute Parts

QMS-026-05.75-L-D-A-K

Samtec Inc.In Stock: 1011QMS-026-05.75-L-D-A-K Datasheet

Current PartRFQ

QMS-026-05.75-L-D-A-K-TR

Samtec Inc.In Stock: 1561QMS-026-05.75-L-D-A-K-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QMS-026-05.75-L-D-A-K is determined by strict equivalence across the following critical parameters:

• Manufacturer and series consistency (Samtec Inc., Power Q2™ QMS)
• Electrical specifications (52 positions, 0.025" pitch, 2 rows)
• Mechanical form factor (surface mount, outer shroud contacts, 0.227" height above board)
• Contact material and finish (gold plating, 10.0µin thickness)
• Compliance certifications (ROHS3, MSL 1)

The primary variable distinguishing substitute parts within this group is packaging format. The QMS-026-05.75-L-D-A-K-TR differs from the main part only in packaging configuration (Cut Tape versus Tray), while maintaining identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the QMS-026-05.75-L-D-A-K and QMS-026-05.75-L-D-A-K-TR are Active products from Samtec Inc. and maintain identical electrical and mechanical specifications. Selection between these parts should be based on manufacturing process requirements and supply chain logistics.

The Tray packaging format (QMS-026-05.75-L-D-A-K) is suitable for high-volume automated assembly operations utilizing pick-and-place equipment with tray feeders. The Cut Tape packaging format (QMS-026-05.75-L-D-A-K-TR) accommodates tape-and-reel feeding systems and is appropriate for continuous production lines or applications requiring component-level inventory management.

Both parts satisfy ROHS3 compliance and carry MSL 1 rating, indicating no moisture sensitivity constraints during storage or handling. Selection should prioritize alignment with existing assembly infrastructure and component handling systems.

Frequently Asked Questions (FAQ)

Q: Can QMS-026-05.75-L-D-A-K-TR be used as a direct substitute for QMS-026-05.75-L-D-A-K?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Cut Tape versus Tray). Direct substitution is valid provided the receiving assembly process supports the alternate packaging format.

Q: What determines compatibility between these connector variants?

A: Compatibility is determined by position count (52), pitch spacing (0.025"), row configuration (2 rows), mounting method (surface mount), contact material (gold), and mechanical envelope (0.227" height above board). All these parameters are identical across both parts.

Q: Are there any compliance or certification differences between the two parts?

A: No. Both parts carry identical RoHS3 compliance status and MSL 1 rating. Regulatory and environmental certifications are equivalent.

Q: Which packaging format should be selected for automated assembly?

A: Packaging selection depends on assembly equipment capability. Tray format suits pick-and-place systems with tray feeders; Cut Tape format suits tape-and-reel feeding systems. Both formats support automated assembly when compatible equipment is available.

Q: Is inventory interchangeability possible between these two part numbers?

A: Inventory interchangeability is possible only if the manufacturing facility can process both packaging formats through the same assembly line. Packaging format conversion requires additional handling and is not recommended for direct line substitution.