Main product image for Transistor Diagram & Facts PCB Coaster [NPN, PNP]
Product image 1 for Transistor Diagram & Facts PCB Coaster [NPN, PNP]
Product image 2 for Transistor Diagram & Facts PCB Coaster [NPN, PNP]
Product image 3 for Transistor Diagram & Facts PCB Coaster [NPN, PNP]
Product image 4 for Transistor Diagram & Facts PCB Coaster [NPN, PNP]
Product image 5 for Transistor Diagram & Facts PCB Coaster [NPN, PNP]
Drink Coaster Made Out of PCB With Transistor Diagrams and Facts
Technology

Transistor Diagram & Facts PCB Coaster [NPN, PNP]

Sold by JC Devices

$13.95

No tax for United States [change]
Choose between green & HASL, black & gold ENIG, or one of each type (4)
Stock available: 10
Check
Ships from United States
This product ships from your country, so you don't have to worry about import fees or tariffs.
Original Design
This product was designed by JC Devices. By buying this product you support original hardware creators.

What is it?

Drink Coasters Made Out of an 85x85mm PCBs, with Transistor Diagrams and Facts printed on it. Available in standard green/lead-free HASL or premium matte black & (actual) gold ENIG.

Comes as a 2-pack with one BJT NPN transistor and one BJT PNP transistor, or as a 4-pack with NPN/PNP coasters in both green and black. Originally funded here on Kickstarter.

Why did you make it?

I needed a place to put my drinks. I also often get confused about how transistors work. These coasters solve both problems and look awesome.

What makes it special?

The premium black & gold coasters feature actual gold for extra sparkle. At the same time, the green PCBs are more obviously PCBs if you want to make sure to get that fact out there. Or you can get 4-pack with all four variations (NPN/PNP green/HASL, NPN/PNP black/ENIG), giving you the correct coaster for any situation.

It's sure to impress those that are technically minded, and it keeps tables/desks dry to satisfy those that respect wood.

Links to code and documentation

No additional links provided for this product.

Shipping policy

No information available.

The seller

JC Devices

JC Devices logo

Palm Harbor, Florida, United States
2 orders since Apr 1, 2026
Custom devices from Jeremy Cook