USB-C Pumpkin PCB Keychain
About the USB-C Pumpkin PCB Keychain
USB-C Pumpkin PCB Keychain is an open source PCB design by Billdesj, published on GitHub under the MIT license. It is a 2-layer board measuring 52 × 76 mm, with 14 components from 5 distinct parts.
By type, the board carries 5 diodes, 5 resistors, 1 connector and 1 fuse.
From the project
A USB-C powered light-up PCB keychain shaped like a chunky lightning bolt. Plug it into a USB-C charger, power bank, or powered port and the amber LEDs light the bolt.
A USB-C powered light-up PCB keychain shaped like a chunky lightning bolt. Plug it into a USB-C charger, power bank, or powered port and the amber LEDs light the bolt.
- USB-C power-only input, 5 V VBUS - Correct USB-C sink detection with 5.1k pull-downs on CC1 and CC2 - 500 mA resettable fuse footprint on VBUS - Five amber 0603 LEDs arranged down the lightning bolt - One 1k current-limit resistor per LED branch - Matte black solder mask with ENIG finish recommended - Reinforced plated keyring hole - Flat bottom edge for the USB-C receptacle
USB-C Pumpkin PCB Keychain bill of materials (BOM)
14 components, 5 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | USB-C Power | USB_C_Receptacle_GCT_USB4125-xx-x_6P_TopMnt_Horizontal | J1 |
| 1 | 500MA 500mA | Fuse_1206_3216Metric | F1 |
| 2 | 5.1K 5.1k | R_0603_1608Metric | RCC1, RCC2 |
| 5 | Amber | LED_0603_1608Metric | D1, D2, D3, D4, D5 |
| 5 | 1k | R_0603_1608Metric | R1, R2, R3, R4, R5 |
USB-C Pumpkin PCB Keychain design files
The KiCad project lives in the Billdesj/lightning-bolt-keychain repository on GitHub; these links point at the commit this page was built from.
USB-C Pumpkin PCB Keychain: common questions
How big is the USB-C Pumpkin PCB Keychain?
The USB-C Pumpkin PCB Keychain measures 52 × 76 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the USB-C Pumpkin PCB Keychain?
14 components, from 5 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the USB-C Pumpkin PCB Keychain design files?
From the Billdesj/lightning-bolt-keychain repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the USB-C Pumpkin PCB Keychain design in my own project?
Yes, under the terms of its MIT license, which Billdesj chose for the repository.
