---
product_id: 115743588
title: "Mica Insulator Sheet for TO-3 Transistor 42mm/1.65\" Length 29mm/1.14\" Width - Pack of 200"
brand: "dahszhi"
price: "A$23"
currency: AUD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.au/products/115743588-mica-insulator-sheet-for-to-3-transistor-42mm-1-65
store_origin: AU
region: Australia
---

# Precise 42x29mm size Bulk pack of 200 insulators 3-hole design for secure mounting Mica Insulator Sheet for TO-3 Transistor 42mm/1.65" Length 29mm/1.14" Width - Pack of 200

**Brand:** dahszhi
**Price:** A$23
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay cool under pressure with premium mica insulation!

## Quick Answers

- **What is this?** Mica Insulator Sheet for TO-3 Transistor 42mm/1.65" Length 29mm/1.14" Width - Pack of 200 by dahszhi
- **How much does it cost?** A$23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/115743588-mica-insulator-sheet-for-to-3-transistor-42mm-1-65)

## Best For

- dahszhi enthusiasts

## Why This Product

- Trusted dahszhi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **High-Quality Mica Composite:** Mica paper fused with silicone resin for superior heat insulation
- • **Triple-Hole Mounting System:** Two 4mm side holes + 2mm center hole for stable installation
- • **Precision Engineered Dimensions:** 42mm x 29mm ensures perfect fit for TO-3 transistors
- • **Bulk Pack for Pro-Level Projects:** 200 pieces to keep your repair or manufacturing workflow uninterrupted
- • **Versatile Appliance Compatibility:** Ideal for hair dryers, toasters, microwaves, and warmers

## Overview

This pack of 200 mini mica insulator sheets, sized 42mm by 29mm with a triple-hole design, offers reliable heat insulation for TO-3 transistors. Crafted from mica paper bonded with silicone resin, these insulators are perfect for enhancing the durability and safety of home appliances like hair dryers, toasters, and microwaves.

## Description

Dimension Total Size : 42mm/1.65" x 29mm/1.14" (L x W) Two Side Hole Diameter : 4mm/ 0.16"; Middle Hole Dia: 2mm/ 0.08" Package Content 200pcs x Mini Mica Insulator Wide Apllication It is widely used for home appliances such as electric hair-dryer, toaster, microwave oven, warmer etc.

## Features

- Package Content :200 x Mini Mica Insulators
- Total Size : 42mm/1.65" x 29mm/1.14" (L x W)
- Two Side Hole Diameter : 4mm/ 0.16"; Middle Hole Dia: 2mm/ 0.08"
- Mica Plate is mica paper with silicone resin by gluing temperature and pressed
- It is widely used for home appliances such as electric hair:dryer, toaster, microwave oven, warmer etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Yohii |
| Part Number | DH1901090049 |
| Item Weight | 1.87 ounces |
| Package Dimensions | 5.91 x 2.2 x 0.59 inches |
| Item model number | DH1901090049 |
| Number Of Pieces | 200 |
| Batteries Required? | No |

## Images

![Mica Insulator Sheet for TO-3 Transistor 42mm/1.65" Length 29mm/1.14" Width - Pack of 200 - Image 1](https://m.media-amazon.com/images/I/61Cot3WwnmL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Spacer for large NPN transistors. Use with thermal compound
*by R***D on February 2, 2022*

Used with 2N3771 NPN transistors and thermal compound to attach transistor to heat sink and repair an Astron Power Supply. Put a liberal amount of thermal compound on both sides of mica spacer.

### ⭐⭐⭐⭐⭐ Great value for the money!
*by N***I on May 29, 2021*

Using thesento replace older worn out ones in a vintage receiver. These work perfectly just like NOS!

### ⭐⭐⭐⭐⭐ Good quality at a great price.
*by R***R on June 6, 2021*

That's a lot of insulators! I used them to mount some power transistors.

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**Shop now:** [https://www.desertcart.com.au/products/115743588-mica-insulator-sheet-for-to-3-transistor-42mm-1-65](https://www.desertcart.com.au/products/115743588-mica-insulator-sheet-for-to-3-transistor-42mm-1-65)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-02*