A-CCS32-Z PLCC 32-Position Socket Equivalent & Substitute Parts

Part Overview

The A-CCS32-Z is a 32-position PLCC socket manufactured by Assmann WSW Components, designed for through-hole mounting applications requiring closed-frame IC socket connectivity. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives from active product lines. Substitute parts must maintain electrical and mechanical compatibility across mating pitch, contact configuration, termination method, and thermal operating range to ensure direct board-level interchangeability.

Substiute Parts

A-CCS32-Z

Assmann WSW ComponentsIn Stock: 792A-CCS32-Z Datasheet

Current PartRFQ

54020-32030LF

Amphenol ICC (FCI)In Stock: 766454020-32030LF Datasheet

MFR RecommendedRFQ

8432-11B1-RK-TP

3MIn Stock: 354408432-11B1-RK-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A-CCS32-Z is determined by strict equivalence across the following critical parameters:

• Pin Configuration: 32 positions in 2 x 7, 2 x 9 arrangement (non-negotiable)
• Mating Pitch: 0.050" (1.27mm) spacing (non-negotiable)
• Post Pitch: 0.100" (2.54mm) spacing (non-negotiable)
• Mounting Method: Through-hole solder termination (non-negotiable)
• Contact Finish: Tin plating on both mating and post surfaces (non-negotiable)
• Operating Temperature: Minimum -40°C to maximum 105°C acceptable
• Current Rating: 1 A minimum
• Frame Type: Closed frame configuration

Both identified substitute parts meet all critical electrical and mechanical parameters. Variations in contact material composition, housing polymer selection, and contact finish thickness remain within acceptable tolerances for PLCC socket applications and do not affect functional interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts provide direct functional equivalence to the A-CCS32-Z across all critical electrical and mechanical parameters. Selection between alternatives should be based on regulatory and compliance requirements:

54020-32030LF (Amphenol ICC) is recommended for applications requiring RoHS compliance and REACH-affected material documentation. This part demonstrates lower contact resistance (20mOhm versus 30mOhm on the original), providing marginal electrical performance improvement. Active product status ensures long-term availability and supply chain stability.

8432-11B1-RK-TP (3M) is recommended for applications where ROHS3 compliance and REACH-unaffected status are required. This part maintains the same housing material composition (PBT, glass-filled) as the original A-CCS32-Z, providing closest mechanical and thermal profile alignment. Active product status and high inventory availability (35,397 units) support immediate procurement.

Both parts operate within the -40°C to 105°C range, which encompasses the original -55°C to 105°C specification for applications not requiring sub-zero operation below -40°C.

Frequently Asked Questions (FAQ)

Q: Can 54020-32030LF and 8432-11B1-RK-TP be used interchangeably with A-CCS32-Z?

A: Yes. Both substitute parts maintain identical pin configuration (32 positions), mating pitch (0.050"), post pitch (0.100"), contact finish (tin), mounting method (through-hole solder), and current rating (1 A). All three parts feature closed-frame design and UL94 V-0 flammability rating. Direct board-level substitution is supported without design modification.

Q: What is the difference in operating temperature range?

A: The A-CCS32-Z operates from -55°C to 105°C, while both substitutes operate from -40°C to 105°C. For applications requiring operation below -40°C, the original part specification must be maintained. For standard industrial and commercial temperature ranges (-40°C to 105°C), both substitutes are fully qualified.

Q: Why does 54020-32030LF show lower contact resistance?

A: Contact resistance variation (20mOhm versus 30mOhm) results from differences in contact material composition and plating thickness. The Amphenol ICC part uses copper alloy contacts with 100.0µin finish thickness, while the original uses phosphor bronze with 150.0µin finish. Both values remain within acceptable limits for 1 A current applications and do not affect functional performance.

Q: Which substitute part should be selected for new designs?

A: Selection depends on regulatory requirements. For RoHS-compliant applications, specify 54020-32030LF. For ROHS3-compliant applications with REACH-unaffected material status, specify 8432-11B1-RK-TP. Both parts are active products with established supply chains.

Q: Are packaging differences significant?

A: Both substitute parts are supplied in tube packaging. The original A-CCS32-Z packaging is not specified. Tube packaging is standard for PLCC socket distribution and does not affect component performance or board-level installation.

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

A: All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard storage and handling procedures apply without special desiccant or humidity control requirements.