PX-32LCC PLCC Socket 32-Position Equivalent & Substitute Parts

Part Overview

The PX-32LCC is a 32-position PLCC (Plastic Leaded Chip Carrier) socket manufactured by Kycon, Inc., designed for through-hole mounting applications. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing production support, repair operations, and design continuity. The socket accommodates 32-pin PLCC packages with a 0.050" (1.27mm) mating pitch and 0.100" (2.54mm) post pitch, utilizing tin-plated phosphor bronze contacts on a PBT glass-filled housing.

Substiute Parts

PX-32LCC

Kycon, Inc.In Stock: 811PX-32LCC Datasheet

Current PartRFQ

54020-32030LF

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

SimilarRFQ

8432-11B1-RK-TP

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

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A-CCS 032-Z-T

Assmann WSW ComponentsIn Stock: 1197A-CCS 032-Z-T Datasheet

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PLCC-32-AT

Adam TechIn Stock: 1383PLCC-32-AT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PX-32LCC is determined by strict adherence to the following critical parameters:

Mandatory Matching Parameters:

• Type: PLCC socket
• Number of Positions: 32 (2 x 7, 2 x 9) configuration
• Pitch - Mating: 0.050" (1.27mm)
• Pitch - Post: 0.100" (2.54mm)
• Mounting Type: Through Hole
• Contact Finish - Mating: Tin
• Features: Closed Frame
• Termination: Solder

Allowable Variation Parameters:

• Contact Material - Mating: Phosphor Bronze or Copper Alloy
• Housing Material: PBT (glass-filled or unfilled) or Polyphenylene Sulfide (PPS)
• Operating Temperature Range: Equal to or exceeding -40°C to 75°C
• Contact Resistance: Equal to or lower than 15mOhm
• Termination Post Length: Within ±0.006" (0.15mm) tolerance
• RoHS/REACH Compliance: Equal to or exceeding current standards

All four identified substitute parts meet these criteria and are classified as active products with current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

The 8432-11B1-RK-TP (3M) and A-CCS 032-Z-T (Assmann WSW Components) are the most direct substitutes for the PX-32LCC. Both maintain identical termination post length (0.132"), matching housing material composition (PBT glass-filled or PBT), and equivalent contact resistance specifications. Both are ROHS3 compliant and rated for extended operating temperatures (-40°C to 105°C), providing superior thermal margin over the original part's -40°C to 75°C range.

Secondary Substitutes (Acceptable with Minor Considerations):

The 54020-32030LF (Amphenol ICC) and PLCC-32-AT (Adam Tech) are functionally equivalent but present minor dimensional variations. The 54020-32030LF features a 0.126" (3.20mm) termination post length versus the original 0.132", and utilizes PPS housing material instead of PBT. The PLCC-32-AT also specifies 0.126" post length and exhibits higher contact resistance (30mOhm versus 15mOhm). Both remain suitable for applications where post length tolerance and contact resistance specifications permit these variations.

Compliance Considerations:

All substitute parts maintain RoHS compliance. The 3M and Assmann parts carry ROHS3 certification, representing current regulatory standards. All parts are classified as MSL 1 (Unlimited moisture sensitivity), matching the original specification.

Frequently Asked Questions (FAQ)

Q: Can the 54020-32030LF substitute for the PX-32LCC in existing PCB designs?

A: The 54020-32030LF is mechanically and electrically compatible for most applications. The 0.006" (0.15mm) shorter termination post length (0.126" versus 0.132") must be evaluated against PCB pad depth and solder fillet requirements. The PPS housing material provides equivalent performance to PBT in standard operating conditions.

Q: What is the significance of contact resistance differences among the substitute parts?

A: Contact resistance values (15mOhm to 30mOhm) remain within acceptable ranges for PLCC socket applications. The PX-32LCC and A-CCS 032-Z-T specify 15mOhm, while the 54020-32030LF specifies 20mOhm and PLCC-32-AT specifies 30mOhm. These variations do not impact signal integrity in standard digital logic applications but should be considered in high-current or precision analog circuits.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts are supplied in tube packaging, consistent with the original PX-32LCC specification. Inventory availability varies: 3M 8432-11B1-RK-TP (35,397 units), Amphenol ICC 54020-32030LF (7,572 units), Assmann A-CCS 032-Z-T (1,122 units), and Adam Tech PLCC-32-AT (1,320 units).

Q: Which substitute offers the best thermal performance?

A: The PLCC-32-AT (Adam Tech) provides the widest operating temperature range (-55°C to 105°C), offering 15°C additional low-temperature margin compared to the original PX-32LCC (-40°C to 75°C). The 3M and Assmann parts both support -40°C to 105°C, providing 30°C additional high-temperature margin.

Q: Is housing material selection critical for PCB assembly compatibility?

A: Housing material (PBT versus PPS) does not affect PCB assembly compatibility or electrical performance in standard applications. Both materials maintain UL94 V-0 flammability ratings and equivalent mechanical properties. Material selection may be driven by specific environmental exposure or long-term reliability requirements in specialized applications.