2 layers242.9 × 95.3 mm
2 layers303.8 × 94.2 mm
Heart HE 65
MaiTheSan/Floating-HE- Size
- 303.8 × 94.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 290
- Nets
- 114
- Pads
- 1,023
- Tracks, vias
- 1,173, 302
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 16 Nov 2024
- Updated
- 9 May 2025
Overview
Heart HE 65 is an open-source printed circuit board by MaiTheSan, from the MaiTheSan/Floating-HE repository on GitHub. It is a 2-layer board of 303.8 × 94.2 mm with 290 parts on 114 nets, routed with 1,173 tracks and 302 vias.
It is built around the SLSS49E-3, TPS63001DRC and 74HC4051, with the AMS1117-3.3 and AP2112K-3.3 among its other parts. Its parts include 167 capacitors, 89 ICs, 6 resistors, 1 connector and 1 switch.
Main components
5
SLSS49E-3
SOT-23-40℃~+150℃ 1.5mA 3V~12V 5mA Built-in Schmitt trigger Omnipolar SOT-23 Linear Hall Sensors ROHSSlkorHall Switches
TPS63001DRC
VSON-10-EP(3x3)-40℃~+85℃@(TA) 1 1.5MHz 1.8V~5.5V 3.3V 50uA Buck-Boost Buck-Boost Built-in Fixed Yes VSON-10-EP(3x3) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
74HC4051
SOP-16-40℃~+85℃ 1 170MHz 28ns 29ns 3V~9V 5ns 5pF 80Ω 8:1 SOP-16 Analog Switches, Multiplexers ROHSWuxi I-core ElecAnalog Switches, Multiplexers
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
Parts
290| Qty | Value | Footprint | References |
|---|---|---|---|
| 93 | 0.1uF | Common_Footprint:C_0402 | C1, C10, C101, C102, C105, C111, C112, C113, C114, C115, C116, C117, C118, C119, C120, C121 +77 |
| 64 | 4.7nF | Common_Footprint:C_0402 | C15, C16, C17, C100, C106, C107, C108, C109, C168, C169, C170, C171, C172, C173, C174, C175 +48 |
| 57 | SLSS49E-3 | Hall_Sensor_Keyboard:SLSS49E_MX_1U | U10, U16, U17, U18, U22, U23, U24, U25, U28, U29, U30, U100, U101, U102, U103, U104 +41 |
| 15 | MountingHole | MountingHole:MountingHole_2.2mm_M2_DIN965_Pad | H3, H4, H5, H7, H8, H9, H10, H11, H12, H13, H14, H15, H16, H17, H18 |
| 9 | 74HC4051 | Package_SO:SSOP-16_4.4x5.2mm_P0.65mm | U2, U32, U38, U45, U51, U56, U62, U69, U74 |
| 7 | 10uF | Common_Footprint:C_0402 | C7, C14, C20, C21, C25, C26, C32 |
| 4 | SLSS49E-3 | Hall_Sensor_Keyboard:SLSS49E_MX_1.25U_Rotate | U14, U20, U21, U26 |
| 4 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3, TP4 |
| 3 | SLSS49E-3 | Hall_Sensor_Keyboard:SLSS49E_MX_1.5U_Rotate | U4, U6, U8 |
| 2 | 5.1k | Common_Footprint:R_0402 | R2, R3 |
| 2 | Jumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2 |
| 2 | SLSS49E-3 | Hall_Sensor_Keyboard:SLSS49E_MX_1.75U | U12, U91 |
| 2 | SLSS49E-3 | Hall_Sensor_Keyboard:SLSS49E_MX_1.25U | U15, U75 |
| 2 | SLSS49E-3 | Hall_Sensor_Keyboard:SLSS49E_MX_1.5U | U11, U89 |
| 1 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C165 |
| 1 | 100R | Resistor_SMD:R_0402_1005Metric | R113 |
| 1 | 10k | Common_Footprint:R_0402 | R30 |
| 1 | 12Mhz (15p) | Crystal:Resonator_SMD_Murata_CSTxExxV-3Pin_3.0x1.1mm | Y1 |
| 1 | 12k | Common_Footprint:R_0402 | R35 |
| 1 | 1A | Common_Footprint:Fuse_SMD1206_Reflow | F1 |
| 1 | 1M | Common_Footprint:R_0402 | R1 |
| 1 | 1uF | Common_Footprint:C_0402 | C11 |
| 1 | 2.2uH | Inductor_SMD:L_TDK_NLV25_2.5x2.0mm | L1 |
| 1 | 4.7uF | Common_Footprint:C_0402 | C8 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U63 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U19 |
| 1 | AT32F405KxU7-4 | Package_DFN_QFN:QFN-32-1EP_4x4mm_P0.4mm_EP2.9x2.9mm_ThermalVias | U27 |
| 1 | Conn_01x04 | sanproject-keyboard-part:JST-SR-4 | J2 |
| 1 | HRO-TYPE-C-31-M-12 | Common_Footprint:HRO-TYPE-C-31-M-12-Assembly | USB1 |
| 1 | LOGO | LOGO | G*** |
| 1 | SLSS49E-3 | Hall_Sensor_Keyboard:SLSS49E_MX_2U | U3 |
| 1 | SLSS49E-3 | Hall_Sensor_Keyboard:SLSS49E_MX_1U_Rotate | U5 |
| 1 | SLSS49E-3 | Hall_Sensor_Keyboard:SLSS49E_MX_2.25U | U33 |
| 1 | SLSS49E-3 | Hall_Sensor_Keyboard:SLSS49E_MX_6.25U-ReversedStabilizers | U44 |
| 1 | SLSS49E-3 | Hall_Sensor_Keyboard:SLSS49E_MX_7U-ReversedStabilizers | U7 |
| 1 | SLSS49E-3 | Hall_Sensor_Keyboard:SLSS49E_MX_2.25U-ReversedStabilizers | U84 |
| 1 | SW_Push | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1 |
| 1 | TPS63001 | Package_SON:Texas_DRC0010J_ThermalVias | U85 |
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Questions
How big is the Heart HE 65 PCB?
It measures 303.8 × 94.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Heart HE 65 use?
290 parts, built around the SLSS49E-3, TPS63001DRC, 74HC4051 and AMS1117-3.3. 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 Heart HE 65 KiCad files?
From the MaiTheSan/Floating-HE repository on GitHub, at the commit this page was made from: the board is Heart HE 65.kicad_pcb and its schematic Heart HE 65.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Heart HE 65 design in my own project?
Its repository states no licence, so its author keeps all rights: ask MaiTheSan before reusing the design.