QMSS-064-01-L-D-DP-EM2 Equivalent & Substitute Parts

Part Overview

The QMSS-064-01-L-D-DP-EM2 is a 128-position differential pair array connector manufactured by Samtec Inc. in the Q2™ QMSS series. This surface mount male connector features a 0.025" pitch with board guide, ground bus plane, and shielding. The part is Active status and ROHS3 compliant, making it suitable for high-density differential signal applications requiring compact form factors and reliable signal integrity.

Identifying equivalent and substitute parts is necessary when managing supply chain continuity, optimizing inventory levels, or addressing component availability constraints while maintaining electrical and mechanical compatibility.

Substiute Parts

QMSS-064-01-L-D-DP-EM2

Samtec Inc.In Stock: 817QMSS-064-01-L-D-DP-EM2 Datasheet

Current PartRFQ

QMSS-064-06.75-L-D-DP-A

Samtec Inc.In Stock: 1125QMSS-064-06.75-L-D-DP-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QMSS-064-01-L-D-DP-EM2 is determined by strict equivalence across the following critical parameters:

• Connector Type: Differential Pair Array, Male
• Number of Positions: 128
• Pitch: 0.025" (0.64mm)
• Number of Rows: 2
• Mounting Type: Surface Mount
• Contact Finish: Gold
• Contact Finish Thickness: 10.0µin (0.25µm)
• Features: Board Guide, Ground Bus (Plane), Shielded
• Height Above Board: 0.265" (6.73mm)
• Mated Stacking Heights: 11mm
• Series: Q2™ QMSS
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The identified substitute part QMSS-064-06.75-L-D-DP-A maintains full electrical and mechanical compatibility with the main part number across all specified parameters, differing only in packaging configuration and inventory availability.

Parameter Comparison

Engineering Selection Recommendations

Both the QMSS-064-01-L-D-DP-EM2 and QMSS-064-06.75-L-D-DP-A are Active status products manufactured by Samtec Inc. within the Q2™ QMSS series. Both parts maintain ROHS3 compliance and identical electrical and mechanical specifications across all critical parameters.

Selection between these parts should be based on supply chain requirements and inventory availability. The QMSS-064-06.75-L-D-DP-A offers higher current inventory levels (1024 Pcs versus 745 Pcs), which may provide advantages for procurement lead time and supply continuity. Both parts are suitable for direct substitution in applications requiring 128-position differential pair array connectors with 0.025" pitch and surface mount configuration.

Frequently Asked Questions (FAQ)

Q: Are QMSS-064-01-L-D-DP-EM2 and QMSS-064-06.75-L-D-DP-A electrically identical?

A: Yes. Both parts are 128-position differential pair array male connectors with identical pitch (0.025"), contact finish (gold, 10.0µin thickness), and electrical characteristics. They are fully compatible for direct substitution in circuit applications.

Q: What is the difference between these two part numbers?

A: The part numbers differ in their configuration codes. Both maintain identical electrical and mechanical specifications, including connector type, position count, pitch, mounting type, and physical dimensions. The difference is reflected in packaging and inventory management designations.

Q: Can these connectors be used interchangeably on the same PCB?

A: Yes. Both connectors have identical footprints, height above board (0.265"), mated stacking heights (11mm), and mounting type (surface mount). They are mechanically and electrically interchangeable.

Q: Are both parts RoHS compliant?

A: Yes. Both QMSS-064-01-L-D-DP-EM2 and QMSS-064-06.75-L-D-DP-A are ROHS3 compliant and suitable for applications requiring RoHS certification.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts have Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life without moisture control requirements.