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STD CPU Handwarmer
License: GPL 3.0
Mode: Editors' pick
- 0
Update time：
2018-11-09 21:42:50
Creation time：
2017-11-15 14:43:16
Description
This is a small project for creating a CPU handwarmer. Its open for testing. Resistors and capacitors arent specificly chosen except the heat dissapating ones. But the values are given.
There is an autorouted version of the PCB present but I DONT recommend using it. Because it has wrong trace widths and parts on it. I just used it for testing!
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity | Supplier | Mounted | Seller Item ID | |
|---|---|---|---|---|---|---|---|---|
| 1 | Pads for battery | P1 | 2X1 SOLDER PAD | 1 | LCSC | No | C49661 | |
| 2 | 11Ω | R1,R2,R3 | 2512 | 3 | Digi-Key | Yes | LTR100JZPF11R0CT-ND | LTR100JZPF11R0CT-ND |
| 3 | SMD switch | U1 | NKK SS3 SMD SWITCH | 1 | Digi-Key | Yes | 360-2924-1-ND | 360-2924-1-ND |
| 4 | ATTINY45 | U2 | SO08-EIAJ | 1 | Digi-Key | Yes | ATTINY45-20SU-ND | ATTINY45-20SU-ND |
| 5 | 10kΩ THM | F1 | PTC-1206 | 1 | LCSC | Yes | C143975 | C143975 |
| 6 | MICRO USB 5S B | USB1 | MICRO-USB-1 | 1 | LCSC | Yes | C10418 | C10418 |
| 7 | 10kΩ | R13 | 1206 | 1 | Digi-Key | Yes | undefined | |
| 8 | MCP73833 | U3 | MSOP-10 | 1 | Digi-Key | Yes | MCP73833-AMI/UN-ND | MCP73833-AMI/UN-ND |
| 9 | SMD1206P110TFT | F2 | PTC-1206 | 1 | LCSC | Yes | C143975 | C143975 |
| 10 | 1uF | C1,C2 | 1206 | 2 | Digi-Key | Yes | undefined | |
| 11 | 1kΩ | R8 | 1206 | 1 | Digi-Key | Yes | undefined | |
| 12 | DMN10H220L | Q1 | SOT23 | 1 | Digi-Key | Yes | DMN10H220L-7DICT-ND | DMN10H220L-7DICT-ND |
| 13 | QBLP615-IB | LED1 | 1206 | 1 | Digi-Key | Yes | 1516-1072-1-ND | 1516-1072-1-ND |
| 14 | 55Ω | R4 | 1206 | 1 | Digi-Key | Yes | undefined | |
| 15 | 47k | R5 | 1206 | 1 | Digi-Key | Yes | undefined | |
| 16 | 91kΩ | R7 | 1206 | 1 | Digi-Key | Yes | undefined |
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