Mica Insulating Sheet for TO-3 Transistor – 29x42x0.12 mm (1 Piece)
Prices updated: 13 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Microohm | Mica Insulating Sheet for TO-3 Transistor – 29x42x0.12mm – 1 Piece | 1 EGP1.5 | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 1 EGP
About this product
A high-dielectric mica insulating sheet for TO-3 power transistor packages, sized 29x42x0.12 mm. It electrically isolates the transistor from a heatsink or chassis while still allowing heat to pass through. Used in power amplifiers, regulators and other high-power circuits.
Specifications
- Package
- TO-3
- Dimensions
- 29 x 42 x 0.12 mm
- Material
- Mica
- Quantity
- 1 piece
Frequently asked questions
What is the price of Mica Insulating Sheet for TO-3 Transistor – 29x42x0.12 mm (1 Piece) in Egypt?
Mica Insulating Sheet for TO-3 Transistor – 29x42x0.12 mm (1 Piece) currently costs 1 EGP in Egypt.
Where can I buy Mica Insulating Sheet for TO-3 Transistor – 29x42x0.12 mm (1 Piece) in Egypt?
Mica Insulating Sheet for TO-3 Transistor – 29x42x0.12 mm (1 Piece) is available from Microohm. Compare the offers above to find the best price.
Do I need thermal paste with a mica insulator?
Usually yes. A thin layer of thermal compound on both faces of the mica improves heat transfer, because mica adds some thermal resistance between the transistor and the heatsink.
Why is an insulator needed for TO-3 transistors?
On many TO-3 devices the metal case is internally connected to one terminal (for example the collector on 2N3055-type transistors). The insulator prevents that terminal from shorting to a grounded heatsink or chassis.
