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STD USB Protector LEAP#400
Mode: Editors' pick
- 0
Update time：
2018-07-06 20:58:15
Creation time：
2018-06-15 11:42:55
Description
Building the Silicon Chip USB Protector which demonstrates various methods of reverse-polarity, over-voltage and over-current protection.
This is a quick sketch of the circuit.
Construction notes at https://github.com/tardate/LittleArduinoProjects/tree/master/Equipment/USBProtector
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity | Mounted |
|---|---|---|---|---|---|
| 1 | USB-302 | USB1,USB2 | USB-302 | 2 | Yes |
| 2 | LED-3MM | LED1,LED2 | LED-3MM/2.54 | 2 | Yes |
| 3 | 10k | R1 | AXIAL-0.3 | 1 | Yes |
| 4 | 1.2k | R2 | AXIAL-0.3 | 1 | Yes |
| 5 | 1k | R3 | AXIAL-0.3 | 1 | Yes |
| 6 | 470 | R4 | AXIAL-0.3 | 1 | Yes |
| 7 | 47k | R5 | AXIAL-0.3 | 1 | Yes |
| 8 | AN431AN-ATRG1 | REF1 | SOT-23(SOT-23-3) | 1 | Yes |
| 9 | ECH8102-TL-H | Q1 | SOT23-8 | 1 | Yes |
| 10 | BC856A | Q2 | SOT-23(SOT-23-3) | 1 | Yes |
| 11 | SK153 | D3 | DO-16 | 1 | Yes |
| 12 | CDSOD323-T05S | TVS1 | SMC | 1 | Yes |
| 13 | BAT54S | D1,D2 | SOT-23(SOT-23-3) | 2 | Yes |
| 14 | SM2T3V3A | TVS2 | SMC | 1 | Yes |
| 15 | Fuse 1A | F1 | 1206 | 1 | Yes |
| 16 | MF-NSMF110-2 | PTC1 | PTC0805 | 1 | Yes |
| 17 | 100n | C1 | RAD-0.1 | 1 | Yes |
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