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A-CCS52-Z PLCC 52-Position Socket - Equivalent & Substitute Parts
Part Overview
The A-CCS52-Z is a 52-position PLCC socket manufactured by Assmann WSW Components, designed for through-hole mounting applications. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing production and maintenance requirements. The socket features a closed frame design with tin-plated phosphor bronze contacts and is rated for 1 ampere continuous current operation across an extended temperature range of -55°C to 105°C.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Type | PLCC Socket |
| Number of Positions | 52 (4 x 13 grid) |
| Mating Pitch | 0.050" (1.27mm) |
| Mounting Type | Through Hole |
| Contact Finish - Mating | Tin |
| Contact Material - Mating | Phosphor Bronze |
| Housing Material | Polybutylene Terephthalate (PBT), Glass Filled |
| Operating Temperature Range | -55°C to 105°C |
| Current Rating | 1 A |
| Contact Resistance | 30mOhm |
| Flammability Rating | UL94 V-0 |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the A-CCS52-Z is determined by strict alignment with the following critical parameters:
- Socket Type and Position Count: Must be PLCC with 52 positions in 4 x 13 grid configuration
- Mating Pitch: Must be 0.050" (1.27mm) to ensure mechanical and electrical compatibility with PLCC packages
- Mounting Configuration: Must support through-hole mounting with solder termination
- Contact Specifications: Tin-plated finish on mating contacts with phosphor bronze or copper alloy material
- Housing Material: Polybutylene Terephthalate (PBT) with glass fill for mechanical stability
- Electrical Performance: 1 ampere current rating and contact resistance specifications
- Environmental Compliance: UL94 V-0 flammability rating and MSL 1 classification
The 3M 8452-11B1-RK-TP meets all critical substitution criteria and is classified as an active product with current manufacturing support.
Parameter Comparison
| Parameter | A-CCS52-Z (Assmann) | 8452-11B1-RK-TP (3M) |
|---|---|---|
| Type | PLCC Socket | PLCC Socket |
| Number of Positions | 52 (4 x 13) | 52 (4 x 13) |
| Mating Pitch | 0.050" (1.27mm) | 0.050" (1.27mm) |
| Mounting Type | Through Hole | Through Hole |
| Contact Finish - Mating | Tin | Tin |
| Contact Material - Mating | Phosphor Bronze | Copper Alloy |
| Contact Finish Thickness - Mating | 150.0µin (3.81µm) | 160.0µin (4.06µm) |
| Housing Material | PBT, Glass Filled | PBT, Glass Filled |
| Operating Temperature Range | -55°C to 105°C | -40°C to 105°C |
| Current Rating | 1 A | 1 A |
| Flammability Rating | UL94 V-0 | UL94 V-0 |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
Engineering Selection Recommendations
The 3M 8452-11B1-RK-TP is the qualified substitute for the obsolete A-CCS52-Z. Selection of this substitute is supported by the following engineering factors:
Product Status: The A-CCS52-Z is obsolete with no ongoing manufacturing support. The 3M 8452-11B1-RK-TP maintains active product status with established supply chain availability (2357 units in stock versus 790 units for the original part).
Regulatory Compliance: The 3M substitute achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. Both components maintain UL94 V-0 flammability certification and MSL 1 moisture sensitivity classification.
Electrical and Mechanical Compatibility: Both sockets share identical position count (52), mating pitch (0.050"), current rating (1A), and housing material (PBT glass-filled). Contact finish specifications are equivalent with tin plating on both mating and post surfaces.
Operating Temperature Consideration: The 3M substitute operates across -40°C to 105°C, compared to the original -55°C to 105°C range. Applications requiring operation below -40°C require design review.
Frequently Asked Questions (FAQ)
Q: Can the 3M 8452-11B1-RK-TP directly replace the A-CCS52-Z in existing designs?
A: Yes, for applications operating within the -40°C to 105°C temperature range. Both sockets share identical 52-position PLCC configuration, 0.050" mating pitch, and 1 ampere current rating. The substitute features equivalent tin-plated contact finish and PBT glass-filled housing material.
Q: What is the difference between phosphor bronze and copper alloy contact materials?
A: Both materials are acceptable for PLCC socket applications at the specified current and voltage levels. The 3M substitute uses copper alloy contacts with slightly thicker tin plating (160.0µin versus 150.0µin), providing equivalent electrical performance and contact resistance characteristics.
Q: Does the RoHS3 compliance of the substitute affect compatibility?
A: No. RoHS3 compliance indicates the substitute meets current environmental regulations. The original part's RoHS non-compliance status reflects its obsolete classification. The substitute is suitable for new designs and ongoing production requiring regulatory compliance.
Q: Are there packaging differences between these sockets?
A: The A-CCS52-Z is supplied without specified packaging, while the 3M 8452-11B1-RK-TP is packaged in tubes. Tube packaging is standard for PLCC socket distribution and does not affect component performance or installation.
Q: What is the post pitch difference between these parts?
A: The A-CCS52-Z features 0.100" (2.54mm) post pitch, while the 3M substitute uses 0.050" (1.27mm) post pitch. This difference reflects the mating pitch specification and does not affect PCB compatibility, as both are designed for standard 0.050" PLCC package spacing.
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