This 84-pin surface-mount PLCC socket provides a zero-clearance solderless housing for high-density square J-lead processors, microcontrollers, and custom ASIC devices on dense board layouts. It allows engineers to seat, upgrade, and replace maximum-pin-count programmable chips without repeated infrared reflow heat, preventing thermal substrate stress and internal die fatigue. The coplanar perimeter solder pads support automated high-speed SMT assembly, widely applied in edge-computing servers, industrial automation gateways, and mission-critical aviation avionics.
Key Features
- Available Positions: Standard options in 20, 28, 32, 44, 52, 68, and 84 pins.
- Mating Pitch: 1.27 mm (.050″) pitch for 84-lead square J-lead PLCC packaged chips.
- Mounting Type: Surface mount (SMT) with perimeter lead pads for dense PCB assemblies.
- Thermal Endurance: High-temperature UL 94V-0 thermoplastic for multi-zone reflow profiles.
- Solderless Swapping: Protects chips from soldering heat and enables fast field replacement.
Main Specifications:
General Information:
| Product No.: | PLCC-84-AT-SMT | |
| Product Type: | PLCC Sockets | |
| Number of Positions: | 84 (4 x 21) | |
| Mounting Type: | Surface Mount | |
| Pitch – Mating: | 0.050″ (1.27mm) | |
| Pitch – Termination: | 0.100″ (2.54mm) | |
| Tail Length: | 0.126″ (3.20mm) |
Materials and Plating:
| Insulator Material: | Hi-temp thermoplastic | |
| Insulator Color: | Brown | |
| Contact Material: | Phosphor Bronze | |
| Contact Plating: | Tin over Nickel | |
| Contact Finish Thickness: | 80.0µin (2.03µm) |
Electrical:
| Current rating: | 1 Amp max | |
| Operating voltage: | 250 VAC max | |
| Contact resistance: | 30 mohms max | |
| Insulation resistance: | 1000 Mohms min | |
| Dielectric withstanding voltage: | 500 VAC for 1 minute |
Environmental：
| Operating Temperature: | -55°C to +105°C | |
| Compliance: | Lead Free & RoHS Compliant |
PLCC Socket Dimensions
Applications:
- BIOS & Firmware Socketing
- Microcontroller (MCU) Development Boards
- IC Programming & Test Fixtures
- Industrial Automation Controllers
- Automotive Electronics & ECUs
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