TO-220 Transistor Insulation Kit – Nylon Washer, Mica Sheet & T-Washer
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Free standard shipping provided, no shipping fee required. Contact customer service for expedited shipping. Return within 30 days, duties & taxes non-refundable.
- TW3 / 1pcs - $26.25
- TW6 / 1pcs - $26.45
- TW9 / 1pcs - $26.66
- TW10 / 1pcs - $26.67
- TW3 / 5pcs - $26.41
- TW6 / 5pcs - $26.42
- TW9 / 5pcs - $26.57
- TW10 / 5pcs - $26.56
- TW3 / 10pcs - $27.16
- TW6 / 10pcs - $27.18
- TW9 / 10pcs - $28.26
- TW10 / 10pcs - $28.31
TO-220 Transistor Insulation Kit – Nylon Washer, Mica Sheet & T-Washer
PRODUCT DETAILS
🔧 Insulate & Protect Your Electronic Components with Confidence
Looking for a reliable insulation solution for your TO-220 or similar transistors? Our TO-220 Transistor Insulation Kit combines a nylon insulating washer, natural mica sheet, and T-shaped plastic washer, delivering comprehensive protection against heat, shock, dust, and electrical shorts.
Ideal for electronics repairs, amplifiers, computers, power supplies, and circuit boards, this high-performance kit is trusted by hobbyists and professionals alike.
✅ Why Choose This Nylon Transistor Gasket & Mica Sheet Set?
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High-Temperature Resistance: The mica sheet withstands up to 600°C (1112°F), ensuring reliable thermal insulation for transistors and heat sinks.
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Excellent Electrical Insulation: The nylon gasket prevents shorts and static buildup.
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Secure Mounting: The durable T-washer stabilizes your components and prevents slippage.
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Noise Reduction: Effectively reduces electrical interference and buzzing.
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Lightweight & Durable: Corrosion-resistant materials ideal for long-term use.
📐 Available Sizes – Metric & Inch Conversion Table
| Model | Inner Diameter | Outer Diameter | Thickness | Inner (in) | Outer (in) | Thickness (in) |
|---|---|---|---|---|---|---|
| TW3 | 3mm | 6mm | 0.15mm | 0.12" | 0.24" | 0.01" |
| TW6 | 6mm | 12mm | 0.2mm | 0.24" | 0.47" | 0.01" |
| TW9 | 9mm | 18mm | 0.25mm | 0.35" | 0.71" | 0.01" |
| TW10 | 10mm | 20mm | 0.3mm | 0.39" | 0.79" | 0.01" |
📦 Pack Options: 1pc / 5pcs / 10pcs
🎯 Fits TO-220, TO-3, and similar transistor packages
🛠️ How to Use
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Place the mica sheet between the transistor and the heat sink.
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Slide the nylon washer over the screw shaft.
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Add the T-washer for firm pressure distribution.
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Tighten with a compatible screwdriver.
Simple, effective, and secure!
🌍 Versatile Applications
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DIY amplifier builds
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Electronics repair shops
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Circuit board mounting
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Power supply isolation
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Computer component cooling
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Audio gear shielding
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Radio/TV servicing
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Industrial automation panels
💡 What Makes BeePlastic Different?
At BeePlastic, we understand the challenges engineers and DIYers face. That’s why we:
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✅ Offer a wide range of engineering plastics for different needs
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🛠️ Support full customization (cutting, CNC, UV printing, laser, etc.)
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🤝 Stand behind every order with friendly support & consultation
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💰 Help you reduce costs by providing flexible solutions & small-batch options
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📦 Always ship standard orders free – no minimum required!
💬 Customer Reviews
⭐️⭐️⭐️⭐️⭐️ “Perfect for my amplifier rebuild. These mica washers are high quality and easy to install. Highly recommended.” — John, USA
⭐️⭐️⭐️⭐️⭐️ “Reduced the interference in my radio board. Very effective.” — Lisa, Canada
⭐️⭐️⭐️⭐️⭐️ “Used them for CPU insulation in my DIY PC case. Works great!” — David, Australia
🙋 Frequently Asked Questions (FAQs)
Q1: Can I reuse the washers and mica sheets?
A1: Yes, as long as they are not deformed or damaged, they can be reused multiple times.
Q2: Are screws included?
A2: This listing includes washers and mica sheets only. Screws can be sourced separately depending on your mounting needs.
Q3: Can you provide custom sizes or thicknesses?
A3: Absolutely! Just click the “Custom Quote” button below or contact us with your specifications.
Q4: What transistor models does this fit?
A4: It fits TO-220, TO-3, and other standard transistor packages with similar dimensions.
Q5: Do you offer bulk discounts for large orders?
A5: Yes. Please contact us directly for wholesale pricing and custom processing.
🛒 Ready to Order?
🔥 [Add to Cart] – Choose your size & quantity and enjoy fast, free shipping.
✍️ [Request Custom Quote] – Need different sizes, bulk, or special processing? We’re ready to help!
REVIEWS
SHIPPING & RETURNS
Shipping Information
Free Standard Shipping
We offer free standard shipping on all orders. Delivery time is approximately 10-25 business days, depending on your location and carrier performance. Tracking information will be provided once your order is shipped.
Express Shipping Available
Need your order faster? We offer express shipping with delivery in 4-7 business days. Express shipping fees are calculated based on your specific shipping address. To arrange express shipping, please contact our customer service team at beeplastic@beeplastic.com or via WhatsApp before placing your order. Our team will confirm the express shipping cost and process your request.
Processing Time
Standard items: Ships within 1-3 business days
Custom items: Requires 7-10 days production time before shipping
Returns & Refunds Policy
Important Notice: Returns are accepted ONLY for products with quality defects. Non-defective items cannot be returned or refunded.
Standard Items (Non-Customized Products)
Standard items without quality defects are not eligible for return or refund. If you receive a standard item with manufacturing defects or quality issues, you may request a return or replacement within 30 days of receipt.
Custom Items (Made-to-Order Products)
All customized products are NON-RETURNABLE and NON-REFUNDABLE under any circumstances. This includes any items manufactured according to your specific dimensions, shapes, quantities, or specifications. Please carefully verify your requirements before placing a custom order.
Quality Defects - How to Report
If you receive a product with quality defects, please contact us within 7 days of receipt at beeplastic@beeplastic.com. Include your order number, clear photos or videos showing the defect, and a description of the problem. Our quality team will review your case within 24 hours and provide a solution (replacement or refund) if the defect is confirmed.
Damaged During Shipping
Please inspect your order immediately upon delivery. If items are damaged during transit, contact us within 48 hours with photos of the damaged items and packaging. We will arrange a free replacement or full refund at no cost to you.
Non-Returnable Items
The following items cannot be returned: All custom-made products, items without quality defects, products damaged due to improper use or storage, and items returned without prior authorization from our team.
Refund Process
For approved returns, refunds will be processed within 10-15 business days after we receive and inspect the returned item. Refunds will be credited to your original payment method. Please allow an additional 5-7 business days for your bank or credit card company to process the refund. You will receive email confirmation once the refund is issued.
EU 14-Day Cooling-Off Period
For non-customized items shipped to EU countries, you have the right to cancel within 14 days of receipt under EU consumer protection laws. However, this right applies only to items with quality defects. Custom-made items remain non-returnable under all circumstances, as permitted by EU regulations for personalized goods.
Contact Us
For any questions about shipping or returns, please contact our customer service team:
Email: beeplastic@beeplastic.com
Response Time: Within 12 hours
We are committed to ensuring your satisfaction and will work with you to resolve any issues promptly and professionally.
CUSTOM FABRICATION
Can't Find the Right Size or Specification?
If our standard products don't match your requirements, we offer comprehensive custom fabrication services. Whether you need a specific dimension, unique shape, different thickness, or special material grade - we can manufacture it to your exact specifications.
Our Custom Capabilities
Precision Machining:
CNC machining, laser cutting, drilling, milling, and turning with ±0.03mm tolerance. Suitable for complex geometries and tight specifications.
Size Range:
Thickness: 0.5mm - 300mm
Maximum dimensions: 2000mm × 3000mm
Custom shapes: Round, square, rectangular, irregular profiles, holes, cutouts, and complex contours
Available Materials:
HDPE, PTFE, POM, Nylon, PEEK, ABS, PC, PMMA, PP, PVC, and more. Food-grade, conductive, anti-static, and flame-retardant options available.
Processing Methods:
CNC machining, laser cutting, injection molding, thermoforming, welding, and bonding. Multiple finishing options including polishing, sandblasting, and color matching.
Why Choose Custom Fabrication?
Perfect Fit: Parts manufactured to your exact specifications eliminate the need for modifications or adaptations.
No Minimum Order: Whether you need 1 piece for testing or 10,000 pieces for production, we accommodate all order sizes.
Cost Savings on Volume: Bulk custom orders receive 15-30% discount compared to purchasing multiple standard items.
Expert Technical Support: Our engineering team provides free consultation on material selection and design optimization.
Custom Order Process
Step 1: Contact us with your requirements - dimensions, material preferences, quantity, and application details. Technical drawings (PDF, CAD, DWG) are helpful but not required.
Step 2: Receive a detailed quotation within 24 hours including pricing, production lead time, and technical recommendations.
Step 3: Approve the quote and specifications. For complex projects, we can provide samples for testing before full production.
Step 4: Production begins. Typical lead time is 7-15 days depending on complexity and quantity.
Step 5: Quality inspection and shipping. Every custom piece undergoes strict dimensional checks before delivery.
Industries We Serve
Automotive components, food processing equipment, medical devices, laboratory instruments, packaging machinery, semiconductor equipment, industrial automation, and more.
Get Your Custom Quote Today
Don't see the exact size or specification you need? Let us manufacture it for you.
Contact us: beeplastic@beeplastic.com
Response time: Quote within 24 hours
What to include: Material type, dimensions, quantity, and intended application. If you have technical drawings, please attach them. If not, simply describe what you need and our team will assist you.
Not sure about material selection or specifications? No problem - our technical team will guide you through the process and recommend the best solution for your application.
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