QSE-020-11-L-D-A Equivalent & Substitute Parts

Part Overview

The QSE-020-11-L-D-A is a 40-position rectangular connector receptacle manufactured by Samtec Inc. as part of the Q Strip® QSE series. This surface mount connector features center strip contacts with gold plating and is designed for applications requiring reliable high-density interconnection. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Identifying equivalent and substitute parts is necessary when addressing supply chain constraints, inventory optimization, or application-specific requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

QSE-020-11-L-D-A

Samtec Inc.In Stock: 934QSE-020-11-L-D-A Datasheet

Current PartRFQ

QSE-020-01-L-D-A

Samtec Inc.In Stock: 92884QSE-020-01-L-D-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QSE-020-11-L-D-A is determined by strict equivalence across the following critical parameters:

• Connector type and contact configuration (Receptacle, Center Strip Contacts)
• Electrical specifications (40 positions, 0.031" pitch, 2 rows)
• Mechanical compatibility (Surface mount, board guide, ground bus features)
• Contact material and finish (Gold plating at 10.0µin thickness)
• Environmental and compliance ratings (ROHS3, MSL 1)
• Manufacturer (Samtec Inc., Q Strip® QSE series)

The substitute part QSE-020-01-L-D-A meets all these criteria and is therefore classified as a parametric equivalent within the same product family.

Parameter Comparison

Engineering Selection Recommendations

Both the QSE-020-11-L-D-A and QSE-020-01-L-D-A are active production parts from Samtec Inc. with identical electrical, mechanical, and environmental specifications. Both parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

Selection between these parts should be based on availability and supply chain requirements, as they are functionally and mechanically interchangeable within the Q Strip® QSE series.

Frequently Asked Questions (FAQ)

Q: Are QSE-020-11-L-D-A and QSE-020-01-L-D-A fully interchangeable?

A: Yes. Both parts are parametric equivalents with identical electrical specifications (40 positions, 0.031" pitch), mechanical dimensions (0.128" height above board, surface mount), contact finish (gold at 10.0µin), and environmental ratings (ROHS3, MSL 1). They are interchangeable in applications requiring these specifications.

Q: What is the difference between these part numbers?

A: The part numbers differ in their suffix designation within the Q Strip® QSE series nomenclature. The "-11-" and "-01-" designations indicate different variants within the same product family, but all other parameters remain identical.

Q: Can I use QSE-020-01-L-D-A as a direct replacement for QSE-020-11-L-D-A?

A: Yes. The parts share identical connector type, position count, pitch, mounting method, contact material, and compliance certifications. Direct substitution is supported for applications currently using either part number.

Q: Are there any packaging or inventory considerations?

A: Both parts are supplied in tray packaging. QSE-020-01-L-D-A has significantly higher inventory availability (92,800 pcs) compared to QSE-020-11-L-D-A (900 pcs), which may influence supply chain decisions.

Q: Do these parts require different PCB layouts or assembly procedures?

A: No. Both parts have identical surface mount specifications, board guide features, and ground bus configurations. PCB layouts and assembly procedures are identical.