QRF8-078-07.0-L-D-A Equivalent & Substitute Parts

Part Overview

The QRF8-078-07.0-L-D-A is a 156-position rectangular connector array manufactured by Samtec Inc. as part of the QRate® QRF8 series. This surface-mount female socket connector features a 0.031" (0.80mm) pitch configuration with dual-row arrangement, gold-plated contacts, and integrated board guide with ground bus plane. The component is actively produced and ROHS3 compliant, making it suitable for high-density interconnect applications requiring reliable surface-mount assembly.

Identifying equivalent and substitute parts is necessary when addressing supply chain constraints, inventory optimization, or when alternative sources with identical electrical and mechanical specifications are required for production continuity.

Substiute Parts

QRF8-078-07.0-L-D-A

Samtec Inc.In Stock: 953QRF8-078-07.0-L-D-A Datasheet

Current PartRFQ

QRF8-078-07.0-L-D-A-GP

Samtec Inc.In Stock: 1196QRF8-078-07.0-L-D-A-GP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QRF8-078-07.0-L-D-A is determined by strict equivalence across the following critical parameters:

• Connector Type & Position Count: Must be Array, Female Sockets with exactly 156 positions
• Pitch & Row Configuration: Must maintain 0.031" (0.80mm) pitch with 2-row arrangement
• Mounting Technology: Must be Surface Mount compatible
• Contact Specifications: Gold finish with 10.0µin (0.25µm) thickness
• Physical Dimensions: Height above board of 0.276" (7.01mm) and compatible mated stacking heights (7mm, 10mm, 12mm)
• Functional Features: Must include Board Guide and Ground Bus (Plane)
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating
• Series Compatibility: Must belong to QRate® QRF8 series

The substitute part QRF8-078-07.0-L-D-A-GP meets all these criteria and is therefore a direct parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both QRF8-078-07.0-L-D-A and QRF8-078-07.0-L-D-A-GP are active products from Samtec Inc. with identical electrical and mechanical specifications. Both components are ROHS3 compliant and carry MSL 1 rating, indicating no moisture sensitivity restrictions during storage and handling.

Selection between these parts should be based on availability and supply chain requirements. The QRF8-078-07.0-L-D-A-GP variant currently maintains higher inventory levels (1096 pcs vs. 864 pcs), which may provide supply chain advantages for high-volume production runs.

Frequently Asked Questions (FAQ)

Q: Are QRF8-078-07.0-L-D-A and QRF8-078-07.0-L-D-A-GP electrically interchangeable?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, including contact finish, finish thickness, and connector configuration. They are direct substitutes for each other.

Q: What does the "-GP" suffix indicate in the part number?

A: The "-GP" suffix denotes a variant designation within the QRate® QRF8 series. Both variants maintain identical specifications for the parameters provided in this reference.

Q: Can these connectors be used interchangeably in PCB designs?

A: Yes. Both parts have identical mounting type (Surface Mount), pitch (0.031"), position count (156), row configuration (2), and height above board (0.276"). They are mechanically and electrically interchangeable in PCB layouts.

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

A: No. Both parts carry identical ROHS3 compliance status and MSL 1 rating. There are no compliance or regulatory differences between QRF8-078-07.0-L-D-A and QRF8-078-07.0-L-D-A-GP.

Q: What is the significance of the 0.031" (0.80mm) pitch specification?

A: The 0.031" (0.80mm) pitch defines the center-to-center spacing between adjacent contact positions. This specification must be matched exactly for mechanical and electrical compatibility with mating connectors and PCB footprints.

Q: Do these connectors require special handling during assembly?

A: Both parts carry MSL 1 rating, indicating unlimited shelf life without moisture sensitivity restrictions. Standard surface-mount assembly processes are applicable.