Mica Insulation Sheet 12 x 12 cm
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Prices updated: 13 Oct 2026
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About this product
Mica sheets are thin, flat insulators that combine electrical insulation with high heat resistance. This 12 cm x 12 cm sheet is typically placed between a power transistor and its heat sink to isolate the electrical tab while still passing heat. Mica is also used as an insulating layer in heating equipment and in microwave ovens.
Specifications
- Material
- Mica
- Dimensions
- 12 cm x 12 cm
- Function
- Electrical insulation with heat transfer
- Typical use
- Insulating power devices from heat sinks
Frequently asked questions
How do I mount mica between a TO-220 transistor and a heat sink?
Place the mica between the device tab and the heat sink, apply thermal grease on both faces, and use an insulating shoulder washer on the mounting screw so the screw does not short the tab to the heat sink.
Is the thickness of this sheet specified?
The listing gives only the 12 cm x 12 cm size. Check the thickness and the mounting hole position before fitting it to your device.
