2 layers28 × 50 mm
2 layers40 × 26 mm
Power panic
prusa3d/MK3_Power_Panic37- Size
- 40 × 26 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 27
- Nets
- 18
- Pads
- 61
- Tracks, vias
- 122, 2
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 1 Dec 2017
- Updated
- 19 Aug 2019
Overview
Power panic is an open-source printed circuit board by prusa3d, from the prusa3d/MK3_Power_Panic repository on GitHub. It is a 2-layer board of 40 × 26 mm with 27 parts on 18 nets, routed with 122 tracks and 2 vias.
It is built around the LTV-354T and MMBF170LT1G. Its parts include 12 resistors, 7 connectors, 4 capacitors, 2 transistors and 1 IC.
Main components
2
LTV-354T
SOP-4-2.54mm-55℃~+110℃ 1.24V 100mV@20mA,1mA 20% 200mW 3.75kV 300% 50mA 50mA 80V 8us 9us AC,DC Phototransistor SOP-4-2.54mm Transistor, Photovoltaic Output Optoisolators ROHSUMWTransistor, Photovoltaic Output Optoisolators
MMBF170LT1G
SOT-23-55℃~+150℃ 1 N-channel 225mW 3V 500mA 5Ω@10V 60V 60pF N-Channel SOT-23 MOSFETs ROHSonsemiMOSFETs
README
README.mdMK3 Power Panic
KiCad PCB layout
Parts
27| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 11k | Resistors_SMD:R_1206 | R1, R2, R5, R6, R9, R10, R11, R12 |
| 2 | 10k | Resistors_SMD:R_0805 | R3, R8 |
| 2 | 10u | Capacitors_SMD:C_1206 | C2, C5 |
| 2 | MMBF170LT1G | TO_SOT_Packages_SMD:SOT-23 | Q1, Q2 |
| 1 | 100k | Resistors_SMD:R_0805 | R7 |
| 1 | 100n | Capacitors_SMD:C_0805 | C4 |
| 1 | 24V | ok1hra:Pin_1x02-XL | P7 |
| 1 | 330n | Capacitors_SMD:C_0805 | C1 |
| 1 | 33k | Resistors_SMD:R_0805 | R4 |
| 1 | AC | ok1hra:ac-power-plug-fuse | P10 |
| 1 | AC_FAULT | ok1hra:Pin_1x02-XL | P8 |
| 1 | D_ALT | Diodes_SMD:SOD-323 | D1 |
| 1 | L | ok1hra:faston-hole-m | P5 |
| 1 | LTV-354T_ | Opto-Devices:Optocoupler_SMD_LTV-817S | U1 |
| 1 | N | ok1hra:faston-hole-m | P3 |
| 1 | PE | ok1hra:faston-hole-m | P1 |
| 1 | measure | Pin_Headers:Pin_Header_Straight_1x04 | P9 |
Questions
How big is the Power panic PCB?
It measures 40 × 26 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Power panic use?
27 parts, built around the LTV-354T and MMBF170LT1G. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Power panic KiCad files?
From the prusa3d/MK3_Power_Panic repository on GitHub, at the commit this page was made from: the board is rev.04/power-panic.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Power panic design in my own project?
Its repository states no licence, so its author keeps all rights: ask prusa3d before reusing the design.
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