PLCC-052-T-N Equivalent & Substitute Parts

Part Overview

The PLCC-052-T-N is a 52-position PLCC socket manufactured by Samtec Inc., designed for surface mount applications with tin-plated beryllium copper contacts. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing production and maintenance applications. The socket accommodates 52 pins in a 4 x 13 grid configuration with 0.050" (1.27mm) mating pitch and operates across a temperature range of -55°C to 125°C.

Substiute Parts

PLCC-052-T-N

Samtec Inc.In Stock: 740PLCC-052-T-N Datasheet

Current PartRFQ

8452-21B1-RK-TP

3MIn Stock: 19048452-21B1-RK-TP Datasheet

MFR RecommendedRFQ

940-44-052-17-400004

Mill-Max Manufacturing Corp.In Stock: 1679940-44-052-17-400004 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PLCC-052-T-N is determined by the following critical parameters:

• Pin Configuration: 52 positions in 4 x 13 grid arrangement
• Mating Pitch: 0.050" (1.27mm)
• Contact Finish: Tin plating on mating contacts
• Mounting Type: Surface mount configuration
• Frame Design: Closed frame structure
• Termination Method: Solder termination
• Compliance: ROHS3 compliance and UL94 V-0 flammability rating

The two substitute parts listed below meet these core electrical and mechanical requirements. Variations in housing material, post pitch, and operating temperature ranges do not preclude substitution when the primary mating interface parameters remain consistent.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are classified as active products with current manufacturing availability, addressing the obsolescence status of the PLCC-052-T-N. All three parts maintain ROHS3 compliance and UL94 V-0 flammability certification.

The 3M 8452-21B1-RK-TP operates across -40°C to 105°C, which covers the majority of standard industrial applications but does not extend to the full -55°C lower temperature limit of the original part. Selection of this substitute is appropriate for applications within its specified temperature range.

The Mill-Max 940-44-052-17-400004 does not specify an operating temperature range in the provided data. This part is supplied in Tape & Reel packaging, which may offer cost advantages for high-volume production compared to tube packaging.

Both substitutes maintain the critical mating interface specifications: 52-position configuration, 0.050" (1.27mm) pitch, tin contact finish, closed frame design, and solder termination. Housing material differences (PBT glass-filled versus PPS versus LCP) do not affect electrical compatibility at the mating interface.

Frequently Asked Questions (FAQ)

Q: Can the 3M 8452-21B1-RK-TP be used in applications requiring -55°C operation?

A: No. The 3M part specifies -40°C as its lower operating temperature limit, which is 15°C higher than the original PLCC-052-T-N. Applications requiring -55°C operation require verification that the substitute's temperature range is acceptable for the specific use case.

Q: Are there differences in contact resistance between the substitute parts?

A: The original PLCC-052-T-N specifies 10mOhm contact resistance. Contact resistance values are not provided for the substitute parts in the available data. Contact the manufacturers directly for this specification if contact resistance is a critical parameter for your application.

Q: Does housing material affect substitution compatibility?

A: Housing material differences (LCP, PBT glass-filled, or PPS) do not affect electrical compatibility at the mating interface. Housing material selection may impact thermal performance, mechanical durability, or chemical resistance in specific environments. Verify material compatibility with your application environment if thermal or chemical exposure is a concern.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging (3M part) is suitable for lower-volume applications and manual handling. Tape & Reel packaging (Mill-Max part) is designed for automated assembly processes and high-volume production. Packaging selection depends on your manufacturing process and volume requirements.

Q: Are all three parts RoHS compliant?

A: Yes. The original PLCC-052-T-N and both substitute parts are ROHS3 compliant and carry UL94 V-0 flammability certification, meeting current regulatory requirements for electronic components.

Q: What is the significance of Moisture Sensitivity Level 1?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and does not require special moisture control during storage or handling. All three parts share this classification.