2 layers82.5 × 31.8 mm
2 layers92.7 × 33 mm
DCC Detector
DavidMFlynn/DCC_DetectorDCC Block Detector
- Size
- 92.7 × 33 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 73
- Nets
- 39
- Pads
- 187
- Tracks, vias
- 322, 24
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 24 Aug 2026
- Updated
- 24 Aug 2026
Overview
DCC Detector is an open-source printed circuit board by DavidMFlynn, from the DavidMFlynn/DCC_Detector repository on GitHub, published under the MIT licence. It is a 2-layer board of 92.7 × 33 mm with 73 parts on 39 nets, routed with 322 tracks and 24 vias.
It is built around the LM358AM and 1N4148W. Its parts include 39 resistors, 13 diodes, 11 capacitors, 3 ICs and 2 transistors.
Main components
2
LM358AM
SOIC-8-16V~-1.5V、1.5V~16V 0℃~+70℃ 1MHz 1mA 2 20mA 2mV 3V~32V 45nA 5nA 7uV/℃ 85dB Built-in compensation SOIC-8 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
Parts
73| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R3, R6, R7, R10, R11, R13, R15, R19, R20, R23, R24, R27, R28, R30, R32, R37 |
| 6 | .1uf | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2, C8, C9, C10, C11 |
| 6 | 100K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R12, R14, R18, R29, R31, R35 |
| 6 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R4, R8, R17, R21, R25, R34 |
| 4 | .01uf | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C3, C4, C5, C7 |
| 4 | 1N4148W | Diode_SMD:D_SOD-123 | D5, D7, D9, D11 |
| 4 | 220K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5, R9, R22, R26 |
| 4 | 4.7K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R16, R33, R38, R39 |
| 4 | D_Schottky_AKA | Package_TO_SOT_SMD:TO-252-2 | D1, D2, D3, D4 |
| 3 | 1206 LED | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D6, D10, D13 |
| 3 | LM358AM | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1, U2, U3 |
| 3 | MountingHole_3.2mm_M3 | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3 |
| 2 | 1K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R2 |
| 2 | 2N7000 | Package_TO_SOT_THT:TO-92_Inline | Q1, Q2 |
| 1 | 2.2uf | Capacitor_SMD:CP_Elec_3x5.3 | C6 |
| 1 | 470 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R36 |
| 1 | 6V 500mW | Diode_SMD:D_SMA_Handsoldering | D12 |
| 1 | Conn_01x04 | Connector_Phoenix_MSTB:PhoenixContact_MSTBA_2,5_4-G-5,08_1x04_P5.08mm_Horizontal | J1 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | J2 |
| 1 | D_ALT | Diode_SMD:D_SMA_Handsoldering | D8 |
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Questions
How big is the DCC Detector PCB?
It measures 92.7 × 33 mm and has 2 copper layers, 1.6 mm thick.
What parts does the DCC Detector use?
73 parts, built around the LM358AM and 1N4148W. 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 DCC Detector KiCad files?
From the DavidMFlynn/DCC_Detector repository on GitHub, at the commit this page was made from: the board is PCBrA/DCC_Detector.kicad_pcb and its schematic PCBrA/DCC_Detector.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the DCC Detector design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).