

E throttle
Electronic Throttle Control (ETC) System for the Cambridge Formula Student Team
- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 68
- Nets
- 82
- Pads
- 307
- Tracks, vias
- 596, 109
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 25 Jan 2025
- Updated
- 29 Jun 2026
Overview
E throttle is an open-source printed circuit board by tongclement, from the tongclement/FBR-E-Throttle repository on GitHub. It is a 2-layer board of 100 × 100 mm with 68 parts on 82 nets, routed with 596 tracks and 109 vias.
It is built around the R-78E5.0-1.0, SN65HVD230D and 74HC123D, with the BTS441TG and TLV1117-33DCY among its other parts. Its parts include 26 resistors, 15 capacitors, 8 ICs, 6 connectors and 5 diodes.
Main components
5R-78E5.0-1.0
SIP,11.6x7.5mm-40℃~+85℃ 1 10.2mm 11.6mm 1A 2200uF 300uA 50mVp-p 5V 7.5mm 7V~36V 850kHz 94% Short Circuit Protection、Automatic fault recovery Step-down type ±3% SIP,11.6x7.5mm DC-DC Power Modules ROHSYLPTECDC-DC Power ModulesSN65HVD230D
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 Transceivers74HC123D
SOIC-16-40℃~+125℃ 160uA 2 2V~6V 5.2mA 5.2mA 65ns 74HC Monostable Schmitt trigger SOIC-16 Monostable Multivibrators ROHSNexperiaMonostable MultivibratorsBTS441TG
TO-263-5-40℃~+150℃ 1 20mΩ 21A 4.75V~41V Active High Low Side Switch Short-Circuit Protection(SCP)、Over Voltage Protection、Over Temperature Protection TO-263-5 Power Distribution Switches ROHSInfineon TechnologiesPower Distribution SwitchesTLV1117-33DCY
UncategorisedTexas Instruments
README
README.mdParts
68| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 220 | Resistor_SMD:R_0805_2012Metric | R9, R12, R21, R22, R23, R29 |
| 5 | 10k | Resistor_SMD:R_0805_2012Metric | R2, R10, R14, R24, R27 |
| 5 | 1u | Capacitor_SMD:C_0805_2012Metric | C1, C3, C5, C6, C7 |
| 4 | 0.1u | Capacitor_THT:C_Radial_D4.0mm_H7.0mm_P1.50mm | C12, C13, C14, C15 |
| 4 | 33k | Resistor_SMD:R_0805_2012Metric | R3, R7, R15, R17 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 3 | 68k | Resistor_SMD:R_0805_2012Metric | R6, R13, R19 |
| 3 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D3, D4, D5 |
| 2 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C2, C4 |
| 2 | 100k | Resistor_SMD:R_0805_2012Metric | R16, R18 |
| 2 | Conn_01x11 | Connector_PinSocket_2.54mm:PinSocket_1x11_P2.54mm_Vertical | J3, J4 |
| 2 | Conn_01x15_Socket | Connector_PinSocket_2.54mm:PinSocket_1x15_P2.54mm_Vertical | J1, J2 |
| 2 | LED | LED_THT:LED_D5.0mm | D1, D2 |
| 2 | R_Small | Resistor_SMD:R_0805_2012Metric | R4, R5 |
| 1 | 100 | Resistor_SMD:R_0805_2012Metric | R28 |
| 1 | 100n | Capacitor_SMD:C_0805_2012Metric | C8 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric | C9 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10 |
| 1 | 12u | Inductor_SMD:L_6.3x6.3_H3 | L1 |
| 1 | 330k | Resistor_SMD:R_0805_2012Metric | R20 |
| 1 | 360 | Resistor_SMD:R_0805_2012Metric | R11 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C11 |
| 1 | 665 | Resistor_SMD:R_0805_2012Metric | R8 |
| 1 | 74HC123 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1 |
| 1 | 776087-1 | FBR_Footprints:TE_776087-1 | J5 |
| 1 | BTS441TG | BTS441TG_KiCad:BTS441TG | IC1 |
| 1 | LM317_SOT-223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | LOGO | FBR_Footprints_additional:FBR_Logo_.9in | E-Throttle (2026) |
| 1 | Micro_SD_Card | Connector_Card:microSD_HC_Wuerth_693072010801 | J9 |
| 1 | NMOS | Package_TO_SOT_SMD:TO-263-3_TabPin2 | Q1 |
| 1 | R-78E5.0-1.0 | Converter_DCDC:Converter_DCDC_RECOM_R-78E-0.5_THT | U4 |
| 1 | SN65HVD230 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U8 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_1P1T_6x3.5mm_H4.3_APEM_MJTP1243 | SW1 |
| 1 | TLP241A_TP1_F | TLP241A_TP1_F:SOIC254P1000X425-4N | U6 |
| 1 | TLV1117-33 | Package_TO_SOT_SMD:TO-252-3_TabPin2 | U3 |
| 1 | ~ | FBR_Footprints_additional:ESP32_30pin | U5 |
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Questions
How big is the E throttle PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the E throttle use?
68 parts, built around the R-78E5.0-1.0, SN65HVD230D, 74HC123D and BTS441TG. 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 E throttle KiCad files?
From the tongclement/FBR-E-Throttle repository on GitHub, at the commit this page was made from: the board is E-throttle/E-throttle.kicad_pcb and its schematic E-throttle/E-throttle.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the E throttle design in my own project?
Its repository states no licence, so its author keeps all rights: ask tongclement before reusing the design.