QMSS-064-06.75-L-D-DP-GP Equivalent & Substitute Parts

Part Overview

The QMSS-064-06.75-L-D-DP-GP 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 dual-row configuration, board guide, ground bus plane, and shielding. The part is Active status and ROHS3 compliant, designed for high-density differential signal applications requiring controlled impedance and signal integrity.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector family, ensuring functional interchangeability in circuit design and manufacturing processes.

Substiute Parts

QMSS-064-06.75-L-D-DP-GP

Samtec Inc.In Stock: 1160QMSS-064-06.75-L-D-DP-GP 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-064-06.75-L-D-DP-GP is determined by strict equivalence across the following parameters:

• Connector type and gender (Differential Pair Array, Male)
• Position count (128 positions)
• Pitch specification (0.025" / 0.64mm)
• Row configuration (2 rows)
• Mounting technology (Surface Mount)
• Mechanical features (Board Guide, Ground Bus, Shielding)
• Contact material and finish (Gold, 10.0µin thickness)
• Physical dimensions (Height Above Board: 0.265", Mated Stacking Height: 11mm)
• Regulatory compliance (ROHS3, MSL 1)

The identified substitute maintains all electrical and mechanical parameters within the Q2™ QMSS series, differing only in contact plating application method or internal construction that does not affect functional performance or PCB integration.

Parameter Comparison

Engineering Selection Recommendations

Both QMSS-064-06.75-L-D-DP-GP and QMSS-064-06.75-L-D-DP-A are Active status components within the Q2™ QMSS series, maintaining full ROHS3 compliance and EAR99 export classification. Both parts carry MSL 1 rating, indicating no moisture sensitivity constraints during storage and handling.

Selection between these parts is based on supply chain availability, inventory status, and internal manufacturing specifications that do not affect electrical performance or mechanical compatibility. Both connectors are suitable for direct substitution in differential pair array applications requiring 128-position, 0.025" pitch surface mount configurations with shielded, ground-referenced designs.

Frequently Asked Questions (FAQ)

Q: Can QMSS-064-06.75-L-D-DP-A be used as a direct replacement for QMSS-064-06.75-L-D-DP-GP?

A: Yes. Both parts maintain identical electrical and mechanical specifications across all critical parameters: 128 positions, 0.025" pitch, dual-row configuration, surface mount technology, gold contact finish, and physical dimensions. Both are Active status and ROHS3 compliant.

Q: Are there differences in PCB footprint or land pattern requirements?

A: No. Both connectors share the same base product number (QMSS-064) and identical dimensional specifications, including 0.265" height above board and 11mm mated stacking height. PCB footprints and assembly processes are interchangeable.

Q: What is the significance of the different suffix designations (-GP versus -A)?

A: The suffix designations indicate variations in contact plating application or internal construction methods within the Q2™ QMSS series. These variations do not affect functional performance, electrical characteristics, or mechanical compatibility in circuit applications.

Q: Are both parts suitable for high-speed differential signaling applications?

A: Both connectors feature shielded, ground-referenced differential pair array architecture with board guide and ground bus plane features, supporting controlled impedance differential signal transmission. Electrical performance characteristics are equivalent.

Q: What is the MSL rating and how does it affect component handling?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints. Components do not require special dry-pack storage, desiccant handling, or bake-out procedures prior to assembly.

Q: Are export restrictions applicable to these connectors?

A: Both parts are classified under ECCN EAR99, indicating standard commercial encryption items with no additional export licensing requirements for most destinations.