A-CCS84-Z-R PLCC 84-Position Socket Equivalent & Substitute Parts

Part Overview

The A-CCS84-Z-R is an 84-position PLCC socket manufactured by Assmann WSW Components, designed for through-hole mounting applications. This component features tin-plated phosphor bronze contacts with a closed frame design and is rated for 1 A current with a contact resistance of 30mOhm. The part is currently listed as obsolete, making identification of compatible substitute components essential for ongoing system support and procurement planning.

Substiute Parts

A-CCS84-Z-R

Assmann WSW ComponentsIn Stock: 956A-CCS84-Z-R Datasheet

Current PartRFQ

A-CCS 084-Z-T

Assmann WSW ComponentsIn Stock: 1968A-CCS 084-Z-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The A-CCS 084-Z-T qualifies as a direct substitute for the A-CCS84-Z-R based on the following critical parameters:

• Socket Type & Configuration: Both are 84-position PLCC sockets with identical 4 x 21 grid arrangement
• Mating Pitch: Both maintain 0.050" (1.27mm) mating pitch, ensuring mechanical and electrical compatibility with PLCC integrated circuits
• Post Pitch: Both feature 0.100" (2.54mm) post pitch for PCB mounting alignment
• Contact Material & Finish: Both use tin-plated phosphor bronze contacts
• Mounting Method: Both are through-hole mounted components
• Electrical Rating: Both are rated for 1 A current
• Housing Material: Both use polybutylene terephthalate (PBT) with UL94 V-0 flammability rating
• Moisture Sensitivity: Both are MSL 1 (Unlimited)

The A-CCS 084-Z-T is an active product with improved specifications in contact resistance and contact finish thickness, making it a functionally superior alternative to the obsolete A-CCS84-Z-R.

Parameter Comparison

Engineering Selection Recommendations

The A-CCS 084-Z-T is the appropriate substitute for the obsolete A-CCS84-Z-R. Selection is based on the following factors:

Product Status: The A-CCS84-Z-R is obsolete, while the A-CCS 084-Z-T is an active product with ongoing manufacturer support and availability.

Compliance & Certifications: Both parts maintain identical compliance profiles with UL94 V-0 flammability rating, REACH Unaffected status, and MSL 1 moisture sensitivity classification.

Electrical Performance: The A-CCS 084-Z-T provides superior electrical characteristics with contact resistance reduced from 30mOhm to 15mOhm, representing a 50% improvement in contact performance.

Mechanical Compatibility: Both sockets maintain identical mating and post pitch specifications, ensuring direct PCB footprint compatibility and PLCC device interchangeability.

Temperature Operating Range: The A-CCS84-Z-R operates from -55°C to 105°C, while the A-CCS 084-Z-T operates from -40°C to 105°C. For applications requiring the full -55°C lower temperature limit, this difference must be evaluated against system requirements.

Frequently Asked Questions (FAQ)

Q: Are the A-CCS84-Z-R and A-CCS 084-Z-T mechanically interchangeable?

A: Yes. Both sockets feature identical 84-position PLCC configuration with 0.050" (1.27mm) mating pitch and 0.100" (2.54mm) post pitch. PCB footprints are identical, and both accommodate the same PLCC integrated circuits.

Q: What is the difference in contact resistance between these two parts?

A: The A-CCS84-Z-R has a contact resistance of 30mOhm, while the A-CCS 084-Z-T has 15mOhm. The substitute part provides lower contact resistance, which reduces voltage drop and heat generation in high-current applications.

Q: Does the operating temperature range difference affect substitution?

A: The A-CCS84-Z-R operates from -55°C to 105°C, while the A-CCS 084-Z-T operates from -40°C to 105°C. If your application requires operation below -40°C, the substitute part may not be suitable. For applications within -40°C to 105°C, the substitute is fully compatible.

Q: Are both parts RoHS compliant?

A: The A-CCS84-Z-R does not specify RoHS status in the provided data. The A-CCS 084-Z-T is ROHS3 Compliant. For applications requiring RoHS compliance, the A-CCS 084-Z-T is the appropriate choice.

Q: What is the difference in contact finish thickness?

A: The A-CCS84-Z-R has 150.0µin (3.81µm) contact finish thickness on both mating and post contacts. The A-CCS 084-Z-T has 160.0µin (4.06µm) contact finish thickness on both mating and post contacts. The increased thickness on the substitute part provides enhanced durability and corrosion resistance.

Q: Can I use the A-CCS 084-Z-T as a direct replacement in existing designs?

A: Yes, provided your application operates within the -40°C to 105°C temperature range. The substitute part is mechanically and electrically compatible with identical socket configuration, contact materials, and electrical ratings. The improved contact resistance and finish thickness represent performance enhancements.