Aluminium TO-220 Transistor Heatsink—21×15×11mm🧊

Enhance the thermal performance and reliability of your TO-220 power devices with this compact aluminium heatsink. Engineered for efficient heat dissipation in tight spaces, it helps protect transistors, voltage regulators, and other electronics components from thermal stress, improving stability in both professional designs and hobby projects with Arduino, Raspberry Pi, and other microcontroller platforms.

⭐ Key Features

• High-thermal-conductivity aluminum for rapid, effective heat transfer.
• Compact footprint (21 × 15 × 11 mm) fits densely populated PCBs and enclosed modules.
• Finned design increases surface area for improved convection and heat dissipation.
• Easy installation: includes mounting holes for secure fastening to TO-220 devices; compatible with thermal paste or pads.
• Versatile application: ideal for TO-220 transistors, voltage regulators (e.g., 78xx, LM317), MOSFETs, and other power components.
• Black finish for a professional look and easy identification in assemblies.

📐 Specifications

• Material: Aluminum
• Dimensions: 21 mm (L) × 15 mm (W) × 11 mm (H)
• Color: Black
• Weight: Lightweight design; minimal impact on overall device weight
• Mounting: Integrated mounting holes for secure attachment to TO-220 package devices

⚡ Applications

• Power transistors in amplifiers, power supplies, and motor driver circuits.
• Voltage regulators: helps prevent overheating and supports stable output voltage.
• General electronics: suitable for cooling heat-generating modules and components.
• Prototyping with Arduino and Raspberry Pi: power stages, H-bridge drivers, DC-DC converters, and sensor/power interface boards.

🔌 Compatibility

Designed for standard TO-220 package devices, including common MOSFETs, BJTs, and linear regulators. Typical examples include 7805/7812, LM317, TIP122/TIP142, and many IRF-series MOSFETs. Always verify mechanical clearance and mounting hardware for your specific component and PCB.

🛠️ Installation Tips

• Ensure flat, clean contact surfaces; apply a thin layer of thermal compound or use a thermal pad for best results.
• Use suitable screws/washers; add electrical insulating hardware if the tab is connected to a live node.
• Check enclosure airflow and component spacing to maintain safe operating temperature.

📦 Package Includes

1 × Aluminium TO-220 Transistor Heatsink (21 × 15 × 11 mm)