2 layers150 × 120 mm
2 layers200 × 75 mm
Hbridge
enphx/hbridge-circuitHBridge PCB Design
- Size
- 200 × 75 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 69
- Nets
- 45
- Pads
- 185
- Tracks, vias
- 411, 267
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 12 Jun 2025
- Updated
- 20 Jun 2025
Overview
Hbridge is an open-source printed circuit board by enphx, from the enphx/hbridge-circuit repository on GitHub. It is a 2-layer board of 200 × 75 mm with 69 parts on 45 nets, routed with 411 tracks and 267 vias.
It is built around the MCT6 and MC33269T-3.3. Its parts include 28 resistors, 18 transistors, 5 capacitors, 4 ICs and 4 connectors.
Main components
2
MCT6
DIP-8-55℃~+100℃ 1.2V 150mV@2mA,16mA 2 2.4us 2.4us 20% 30mA 3V 5kV 60mA 85V DC Phototransistor DIP-8 Transistor, Photovoltaic Output Optoisolators ROHSonsemiTransistor, Photovoltaic Output Optoisolators
MC33269T-3.3
TO-220-40℃~+125℃@(Ta) 1 1V@(500mA) 20V 3.3V 5.5mA 55dB@(120Hz) 800mA Fixed Over Temperature Protection、Short Circuit Protection Positive TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSonsemiVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
Parts
69| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 100k | footprints:Resistor_With_Value | R2, R4, R5, R7, R10, R12, R13, R15, R18, R24 |
| 10 | 2N3904 | Package_TO_SOT_THT:TO-92_Inline | Q1, Q2, Q7, Q8, Q9, Q10, Q15, Q16, Q17, Q18 |
| 8 | IRFZ 40 | Package_TO_SOT_THT:TO-220-3_Vertical | Q3, Q4, Q5, Q6, Q11, Q12, Q13, Q14 |
| 6 | 10k | footprints:Resistor_With_Value | R3, R6, R11, R14, R17, R23 |
| 6 | MountingHole | MountingHole:MountingHole_3.2mm_M3_ISO7380 | H1, H2, H3, H4, H5, H6 |
| 4 | 1k | footprints:Resistor_With_Value | R20, R22, R26, R28 |
| 4 | 330 | footprints:Resistor_With_Value | R19, R21, R25, R27 |
| 4 | 330k | footprints:Resistor_With_Value | R1, R8, R9, R16 |
| 4 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP1, JP2, JP3, JP4 |
| 3 | Conn_01x02_Socket | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J1, J2, J3 |
| 2 | 50nf | Capacitor_THT:CP_Radial_D4.0mm_P1.50mm | C1, C2 |
| 2 | MCT6 | footprints:DIP_CT6_VIS | U3, U4 |
| 1 | 10uf | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C4 |
| 1 | 10uf | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C5 |
| 1 | 1uf | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C3 |
| 1 | Conn_01x06_Pin | Connector_JST:JST_XH_B6B-XH-A_1x06_P2.50mm_Vertical | J4 |
| 1 | LT1161CN-PBF | footprints:PDIP-20_N_LIT | U1 |
| 1 | MC33269T-3.3 | footprints:TO220-3_ONS | U2 |
Questions
How big is the Hbridge PCB?
It measures 200 × 75 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hbridge use?
69 parts, built around the MCT6 and MC33269T-3.3. 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 Hbridge KiCad files?
From the enphx/hbridge-circuit repository on GitHub, at the commit this page was made from: the board is hbridge.kicad_pcb and its schematic hbridge.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hbridge design in my own project?
Its repository states no licence, so its author keeps all rights: ask enphx before reusing the design.
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