TO-3P Plastic Insulation Washer and Silicone Pads Insulator Set for Tr

Improve the reliability and safety of heatsink-mounted power devices with this TO-3P Insulator Set. It combines a plastic insulation washer and an ultra-soft, slightly adhesive silicone thermal pad to provide electrical isolation and efficient thermal conductivity between a TO-3P transistor and a heatsink. Ideal for power amplifiers, voltage regulators, MOSFETs, IGBTs, LED drivers, and general electronics components in Arduino, Raspberry Pi, and microcontroller modules and projects.

Key Features ✅

• Purpose-built for TO-3P packages 🔩: Electrically isolates the transistor tab and mounting screw while maintaining low thermal resistance to the heatsink.
• Thermally conductive, electrically insulating silicone pad 🧊🔥: Soft, conformable, and slightly tacky for excellent surface contact without messy greases (thermal paste optional).
• Plastic insulation washer 🛡️: Prevents electrical shorts through the mounting hardware for robust, long-lasting installations.
• Versatile application 🔌: Also useful for GPU/graphics cards, memory chipsets, north/south bridge chips, IC LEDs, and other heat-spreading needs.
• Engineer- and maker-friendly 🧰: A practical choice for power stages in Arduino/Raspberry Pi projects, motor drivers, H-bridges, and modules requiring heatsink mounting.

Technical Specifications 📐

• Item Type: Insulation Washer + Insulation Pads (TO-3P)
• Material: Silicone (thermal pad); Plastic/Nylon (insulation washer)
• Size: Insulator pad approx. 20 × 25 mm
• Colour: White and Grey
• Function: Suitable for CPU, GPU, VGA cards, and IC thermal interface/isolation; ideal for heatsink-mounted power transistors
• Quantity: 1 set

Compatibility & Use Cases 🔋

• TO-3P transistors used in power supplies, audio power amps, motor control, and high-voltage/high-current stages.
• Great for integrating power devices into Arduino/Raspberry Pi microcontroller systems and custom electronics modules.

Installation Notes 🛠️

• Clean both surfaces; place the silicone pad between the device and the heatsink.
• Use the plastic insulation washer on the mounting screw to avoid metal-to-tab contact.
• Optional: apply a very thin layer of thermal grease if desired; the pad’s slight adhesion helps maintain contact.
• After assembly, verify electrical isolation with a multimeter before powering up ⚡.

Package Contents 📦

1. 1 × Plastic Insulation Washer (for TO-3P mounting)
2. 1 × Silicone Thermal Insulation Pad (approx. 20 × 25 mm)

Notes ℹ️

Only the insulation washer and silicone pads are included. Other accessories shown are for illustration and are not part of the package.