2 layers100 × 100 mm
2 layers82 × 72 mm
SRSE2
GBert/misc99miscellaneous stuff / unsorted
- Size
- 82 × 72 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 90
- Nets
- 105
- Pads
- 341
- Tracks, vias
- 1,149, 141
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 29 Aug 2013
- Updated
- 15 Jan 2026
Overview
SRSE2 is an open-source printed circuit board by GBert, from the GBert/misc repository on GitHub. It is a 2-layer board of 82 × 72 mm with 90 parts on 105 nets, routed with 1,149 tracks and 141 vias.
It is built around the PIC18F25K80-I/MM, MAX485ED and SN65HVD230D, with the RS485, TPS5430DDA and ADUM1250AR among its other parts. Its parts include 29 resistors, 23 connectors, 19 capacitors, 8 ICs and 4 diodes. It belongs with the PIC boards of this library.
Main components
9
PIC18F25K80-I/MM
QFN-28-EP(6x6)-40℃~+85℃ 1.8V~5.5V 12bit 1KB 24 3.6KB 32KB 64MHz 8 Bit Built-in FLASH PIC QFN-28-EP(6x6) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
MAX485ED
SOP-8-40℃~+85℃ 1 1 1mA 32 4.75V~5.25V 5Mbps Half-Duplex Transceiver ±8kV SOP-8 RS-485 / RS-422 ICs ROHSHTCRS-485 / RS-422 ICs
SN65HVD230D
SOIC-8-40℃~+85℃ 1 17mA 1Mbps 370uA 3V~3.6V CAN Transceiver Low-power mode、Wake-up function、ESD protection、Thermal shutdown protection、Bus fault protection、Hot-swap protection SOIC-8 CAN Transceivers ROHSTexas InstrumentsCAN TransceiversRS485
SOP-81 1 1.2mA 2.5Mbps 256 5V Half-Duplex Transceiver ±4kV SOP-8 RS-485 / RS-422 ICs ROHSGRRS-485 / RS-422 ICs
TPS5430DDA
ESOP-8-40℃~+125℃@(TJ) 1 1.221V~32.04V 3A 4.4mA 5.5V~36V 500kHz Adjustable Buck Buck Built-in No ESOP-8 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersADUM1250AR
SOIC8Hot Swappable, Dual I2C IsolatorAnalog DevicesUncategorised
CD4504BM
SOIC-16-55℃~+125℃ 1 5V~15V 5V~15V 6 CMOS Level translator TTL、CMOS Unidirectional SOIC-16 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
LM317
SOT-223-40℃~+85℃@(Ta) 0.003%Vout 1 1.3V~37V 1A 40V 80dB@(120Hz) Adjustable Positive Short Circuit Protection、Thermal shutdown SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSJSMSEMIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SS54
SMA(DO-214AC)-55℃~+125℃ 1mA@40V 40V 550mV@5A 5A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
README
RPi-Rail/README.mdParts
90| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C6, C8, C9, C10, C11, C12, C13, C14, C16, C17, C19 |
| 8 | 3k3 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R7, R9, R10, R14, R15, R22, R23 |
| 4 | 49.9 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R17, R18, R19, R20 |
| 4 | MountingHole_Pad | srse2:MountingHole_3mm | H1, H2, H3, H4 |
| 3 | 10uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C5, C18, C100 |
| 3 | 270 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R12, R16, R103 |
| 3 | 680 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3, R5 |
| 2 | 120 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R11, R21 |
| 2 | 18pF | Capacitor_SMD:C_0603_1608Metric | C3, C4 |
| 2 | CONN_01X02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | P3, P19 |
| 2 | CONN_01X03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | P13, P18 |
| 2 | RA5 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | P15, P17 |
| 2 | ~ | srse2:Conn16 | J4, J5 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R101 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C101 |
| 1 | 16MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 18uH | Inductor_SMD:L_10.4x10.4_H4.8 | L100 |
| 1 | 1k5 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R24 |
| 1 | 220uF | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D_Pad2.25x2.55mm_HandSolder | C102 |
| 1 | 240 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R26 |
| 1 | 2k2 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R27 |
| 1 | 39k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R28 |
| 1 | 47k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R25 |
| 1 | 4k7 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 5k6 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R102 |
| 1 | ADuM1250 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | CAN | srse2:MEBP_8-8G_1 | J2 |
| 1 | CAN | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | P8 |
| 1 | CAN Ovf | LED_THT:LED_D3.0mm | D2 |
| 1 | CAN_TERM | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | P7 |
| 1 | CD4504 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U8 |
| 1 | CONN_01X04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | P5 |
| 1 | CONN_01X04 | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | P4 |
| 1 | CONN_01X09 | Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical | P2 |
| 1 | Hanrun HR911105A | Connector_RJ:RJ45_Hanrun_HR911105A_Horizontal | J3 |
| 1 | I2S | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | P1 |
| 1 | ISO_I2C | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | P6 |
| 1 | LM317 | Package_TO_SOT_SMD:TO-252-2 | U9 |
| 1 | Logo_Open_Hardware_Small | srse2:CC_Logo | SYM1 |
| 1 | MAX485 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U6 |
| 1 | O2P-Rst | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | P20 |
| 1 | Omega2 | Onion2:Omega2 | U1 |
| 1 | PIC18F25K80 | Package_SO:SSOP-28_5.3x10.2mm_P0.65mm | U4 |
| 1 | PIC_I2C | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | P9 |
| 1 | PIC_SPARE | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | P10 |
| 1 | RS485 | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | P12 |
| 1 | RS485 TERM | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | P11 |
| 1 | SN65HVD230 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | SS54 | Diode_SMD:D_SMA | D100 |
| 1 | Status | LED_THT:LED_D3.0mm | D1 |
| 1 | TPS5430DDA | srse2:TI_SO-PowerPAD-8_ThermalVias | U7 |
| 1 | UART Ovf | LED_THT:LED_D3.0mm | D3 |
| 1 | s88-N | srse2:MEBP_8-8G | J1 |
Questions
How big is the SRSE2 PCB?
It measures 82 × 72 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SRSE2 use?
90 parts, built around the PIC18F25K80-I/MM, MAX485ED, SN65HVD230D and RS485. 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 SRSE2 KiCad files?
From the GBert/misc repository on GitHub, at the commit this page was made from: the board is srse2/SRSE2.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the SRSE2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask GBert before reusing the design.
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