# Fantastic Four ## Description PCB Component Alignment Update ## Project Details - **Owner:** dunghuynh2 - **Created:** 10/30/2025 - **Last Updated:** 11/8/2025 - **Visibility:** Public - **Connectivity:** USB - **USB-C Cutout:** Centered at (72.3, -235.3), size: 10.0 mm by 8.0 mm - **Human Interface:** Display - **Internal Clearance:** 1.0 mm - **Enclosure Architecture:** two-part enclosure with base and snap-fit lid - **Board Outline Corner Radius:** 3mm - **PCB Layout Size: Height:** 38mm - **Domain:** Consumer Electronics - **PCB Layout Size: Width:** 55mm - **Confirm Mounting Hole Alignment:** Hole1, Hole2, Hole3, and Hole4 positions match enclosure standoff locations. - **Human Interface:** Buttons - **Power Requirements:** Battery - **PCB Layout Size: Width:** 60.0mm - **Standoff Positions:** Hole1: (1027.3, -338.8), Hole2: (1027.3, -398.8), Hole3: (1027.3, -458.8), Hole4: (1027.3, -518.8) - **Copper Power Plane Layers:** Inner layers (L2: GND, L3: Power) - **System Architecture:** graph LR USB_C[USB-C Power Path] --> TVS[TVS & Fuse Protection] Battery[Li-ion Battery] --> Fuse[Fuse & NTC Protection] USB_C --> Charger[BQ24074 Charger] Battery --> Charger Charger --> SystemRail((System Rail)) SystemRail --> MCU[STM32H753 MCU] SystemRail --> SE050[NXP SE050C2 Secure Element] SystemRail --> Display[1.3" OLED Display] SystemRail --> Buttons[User Buttons] MCU --> SE050 MCU --> Display MCU --> Buttons - **3D Model Outputs:** STEP, STL - **Display Bezel:** Centered at (712.8, 398), size: 30.0 mm by 22.0 mm - **Power Requirements:** USB - **Wall Thickness:** 2.0 mm - **Button Actuators:** SW1 at (1811.3, -101.5), SW2 at (1811.3, -166.0), recess size: 6.0 mm diameter - **Dimensioned Drawings:** Top, Bottom, Side views with critical dimensions - **Ground Fill:** Apply on inner layers for GND net - **Stackup:** Standard 4 Layer - **PCB Layout Size: Height:** 44.0mm - **Design Review Results:** No ERC or DRC issues were found in the current design. ## Key Components ### CON1 — [2024100002](https://www.flux.ai/adrian95/2024100002~atk.md) - Position Y: -19mm - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/834/202410002_Pkg_Spec.pdf - Role: Connector - keep-out: true - Part Type: Connector - Position X: 0mm - Manufacturer Part Number: 2024100002 - Role Details: USB-C power-only receptacle - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Molex **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DA- [pin A7] - DA+ [pin A6] - DB- [pin B7] - DB+ [pin B6] - GND1 [pin A1] - GND2 [pin A12] - GND3 [pin B1] - GND4 [pin B12] - RX1- [pin B10] - RX1+ [pin B11] - RX2- [pin A10] - RX2+ [pin A11] - SBU1 [pin A8] - SBU2 [pin B8] - SHIELD1 [pin SH1] - SHIELD2 [pin SH2] - SHIELD3 [pin SH3] - SHIELD4 [pin SH4] - TX1- [pin A3] - TX1+ [pin A2] - TX2- [pin B3] - TX2+ [pin B2] - VBUS1 [pin A4] - VBUS2 [pin A9] - VBUS3 [pin B4] - VBUS4 [pin B9] ### D1 — [0402ESDA-05N](https://www.flux.ai/adrian95/0402esda-05n~pwx.md) - Role: Protection - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2304140030_BORN-0402ESDA-05N_C316049.pdf - Manufacturer Part Number: 0402ESDA-05N - Part Type: Diode - Package or Case Code: SOT-23-6 - Manufacturer Name: BORN - Role Details: ESD protection for USB-C VBUS **Pins:** - A1 [pin 1] - A2 [pin 2] ### D2 — [WE-TVS-82400102](https://www.flux.ai/kicad-part-library/we-tvs-82400102~vb9.md) - Manufacturer Part Number: WE-TVS-82400102 - Role Details: ESD protection for USB-C data lines - Manufacturer Name: Texas Instruments Inc. - Datasheet URL: https://www.we-online.com/components/products/datasheet/82400102.pdf - Package or Case Code: SOT-23-6 - Role: Protection **Pins:** - ~ [pin 1] - ~ [pin 3] - ~ [pin 4] - ~ [pin 5] - ~ [pin 6] - ~ [pin 2] ### F1 — [0ZCF0200AF2C](https://www.flux.ai/adrian95/0zcf0200af2c~eal.md) - Manufacturer Name: BelFuse - Part Type: Fuse - Datasheet URL: https://belfuse.com/resources/datasheets/circuitprotection/ds-cp-0zcf-series.pdf - Role Details: Overcurrent protection for USB-C VBUS - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: FUSC7451X80N - Manufacturer Part Number: 0ZCF0200AF2C - Role: Current Limiting **Pins:** - ~ [pin 2] - ~ [pin 1] ### J1 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Role Details: Li-ion battery connector - License: https://creativecommons.org/licenses/by/4.0/ - Role: Connector - Manufacturer Name: JST Sales America - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Part Type: Connector **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### RT1 — [NTCS0805E3103FMT](https://www.flux.ai/adrian95/ntcs0805e3103fmt~zas.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Battery temperature sensing - Manufacturer Name: Vishay Beyschlag/Draloric/BC Components - Part Type: Thermistor - Datasheet URL: https://www.vishay.com/docs/29044/ntcs0805e3t.pdf - Manufacturer Part Number: NTCS0805E3103FMT - Role: Sensing (Shunt) **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW1 — [B3U-1000P](https://www.flux.ai/adrian95/b3u-1000p~kb2.md) - Manufacturer Part Number: B3U-1000P - Manufacturer Name: Omron Electronics Inc-EMC Div - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://omronfs.omron.com/en_US/ecb/products/pdf/en-b3u.pdf - Role: Debouncing - Part Type: Switch - keep-out: true - Role Details: User input button **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW2 — [B3U-1000P](https://www.flux.ai/adrian95/b3u-1000p~kb2.md) - Datasheet URL: https://omronfs.omron.com/en_US/ecb/products/pdf/en-b3u.pdf - Part Type: Switch - Role Details: User input button - Role: Debouncing - Manufacturer Name: Omron Electronics Inc-EMC Div - Manufacturer Part Number: B3U-1000P - keep-out: true - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### U1 — [STM32H753ZIT6](https://www.flux.ai/lcsc/stm32h753zit6~a805.md) - Max Voltage: 4.6V - Manufacturer Part Number: STM32H753ZIT6 - Manufacturer Name: ST(意法半导体) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_STMicroelectronics-STM32H753ZIT6_C730207.pdf - LCSC Part Number: C730207 - Package or Case Code: LQFP-144_L20.0-W20.0-P0.50-LS22.0-BL - Part Type: ST Microelectronics - Product Info Url: https://lcsc.com/product-detail/Pre-ordered-MCUs_STMicroelectronics-STM32H753ZIT6_C730207.html - Max Current: 1A - Role Details: Main MCU - Role: Integrated Circuit **Pins:** - BOOT0 [pin 138] - NRST [pin 25] - PA0 [pin 34] - PA1 [pin 35] - PA10 [pin 102] - PA11 [pin 103] - PA12 [pin 104] - PA13 [pin 105] - PA14 [pin 109] - PA15 [pin 110] - PA2 [pin 36] - PA3 [pin 37] - PA4 [pin 40] - PA5 [pin 41] - PA6 [pin 42] - PA7 [pin 43] - PA8 [pin 100] - PA9 [pin 101] - PB0 [pin 46] - PB1 [pin 47] - PB10 [pin 69] - PB11 [pin 70] - PB12 [pin 73] - PB13 [pin 74] - PB14 [pin 75] - PB15 [pin 76] - PB2 [pin 48] - PB3 [pin 133] - PB4 [pin 134] - PB5 [pin 135] - PB6 [pin 136] - PB7 [pin 137] - PB8 [pin 139] - PB9 [pin 140] - PC0 [pin 26] - PC1 [pin 27] - PC10 [pin 111] - PC11 [pin 112] - PC12 [pin 113] - PC13 [pin 7] - PC14-OSC32_IN [pin 8] - PC15-OSC32_OUT [pin 9] - PC2_C [pin 28] - PC3_C [pin 29] - PC4 [pin 44] - PC5 [pin 45] - PC6 [pin 96] - PC7 [pin 97] - PC8 [pin 98] - PC9 [pin 99] - PD0 [pin 114] - PD1 [pin 115] - PD10 [pin 79] - PD11 [pin 80] - PD12 [pin 81] - PD13 [pin 82] - PD14 [pin 85] - PD15 [pin 86] - PD2 [pin 116] - PD3 [pin 117] - PD4 [pin 118] - PD5 [pin 119] - PD6 [pin 122] - PD7 [pin 123] - PD8 [pin 77] - PD9 [pin 78] - PDR_ON [pin 143] - PE0 [pin 141] - PE1 [pin 142] - PE10 [pin 63] - PE11 [pin 64] - PE12 [pin 65] - PE13 [pin 66] - PE14 [pin 67] - PE15 [pin 68] - PE2 [pin 1] - PE3 [pin 2] - PE4 [pin 3] - PE5 [pin 4] - PE6 [pin 5] - PE7 [pin 58] - PE8 [pin 59] - PE9 [pin 60] - PF0 [pin 10] - PF1 [pin 11] - PF10 [pin 22] - PF11 [pin 49] - PF12 [pin 50] - PF13 [pin 53] - PF14 [pin 54] - PF15 [pin 55] - PF2 [pin 12] - PF3 [pin 13] - PF4 [pin 14] - PF5 [pin 15] - PF6 [pin 18] - PF7 [pin 19] - PF8 [pin 20] - PF9 [pin 21] - PG0 [pin 56] - PG1 [pin 57] - PG10 [pin 125] - PG11 [pin 126] - PG12 [pin 127] - PG13 [pin 128] - PG14 [pin 129] - PG15 [pin 132] - PG2 [pin 87] - PG3 [pin 88] - PG4 [pin 89] - PG5 [pin 90] - PG6 [pin 91] - PG7 [pin 92] - PG8 [pin 93] - PG9 [pin 124] - PH0-OSC_IN [pin 23] - PH1-OSC_OUT [pin 24] - VBAT [pin 6] - VCAP [pin 71] - VCAP [pin 106] - VDD [pin 144] - VDD [pin 52] - VDD [pin 72] - VDD [pin 121] - VDD [pin 62] - VDD [pin 30] - VDD [pin 84] - VDD [pin 17] - VDD [pin 39] - VDD [pin 108] - VDD [pin 131] - VDD33USB [pin 95] - VDDA [pin 33] - VREF+ [pin 32] - VSS [pin 107] - VSS [pin 120] - VSS [pin 16] - VSS [pin 51] - VSS [pin 61] - VSS [pin 83] - VSS [pin 38] - VSS [pin 130] - VSS [pin 94] - VSSA [pin 31] ### U2 — [SE050C2HQ1/Z01SDZ](https://www.flux.ai/vasy_skral/se050c2hq1z01sdz~x9d.md) - Manufacturer Name: NXP - Datasheet URL: https://www.nxp.com/docs/en/data-sheet/SE050-DATASHEET.pdf - Part Type: Integrated Circuit - Role: Integrated Circuit - Manufacturer Part Number: SE050C2HQ1/Z01SDZ - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: QFN40P300X300X33-21N - Role Details: Secure Element - Symbol Style: Parametric - Max Voltage: 4.6V - Max Current: 0.2A **Pins:** - ~ISO_RST [pin 14] - ANT_LA [pin 17] - ANT_LB [pin 1] - ENA [pin 11] - EXP [pin 21] - I2C_SCL [pin 10] - I2C_SDA [pin 9] - IO1 [pin 3] - IO2 [pin 16] - ISO_CLK [pin 13] - VCC [pin 18] - VIN [pin 12] - VOUT [pin 15] - VSS [pin 19] ### U3 — [BQ24074RGTT](https://www.flux.ai/lcsc/bq24074rgtt~fpyl.md) - Role: Power Management - Role Details: Battery Charger - JLCPCB Part Class: Extended Part - LCSC Part Number: C2861252 - Part Type: Battery Management ICs - Max Current: 1A - Package or Case Code: VQFN-16_L3.0-W3.0-P0.50-TL-EP1.7 - Manufacturer Name: TI(德州仪器) - Max Voltage: 10V - Manufacturer Part Number: BQ24074RGTT **Pins:** - ~{CE} [pin 4] - ~{CHG} [pin 9] - ~{PGOOD} [pin 7] - BAT [pin 2] - BAT [pin 3] - EN1 [pin 6] - EN2 [pin 5] - EP [pin 17] - ILIM [pin 12] - IN [pin 13] - ISET [pin 16] - ITERM [pin 15] - OUT [pin 10] - OUT [pin 11] - TMR [pin 14] - TS [pin 1] - VSS [pin 8] ### U5 — [FDC6330L](https://www.flux.ai/kicad-part-library/fdc6330l~dvr.md) - Role: Switching - Role Details: Load switch for SE050C2 power island - Datasheet URL: https://www.onsemi.com/pub/Collateral/FDC6330L-D.PDF - Package or Case Code: TSOT-23-6 - Manufacturer Part Number: FDC6330L **Pins:** - D1 [pin 6] - D2 [pin 3] - D2 [pin 2] - G1 [pin 5] - S1 [pin 1] - S2 [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/dunghuynh2/fantastic-four~il](https://www.flux.ai/dunghuynh2/fantastic-four~il).* --- *Generated from [https://www.flux.ai/dunghuynh2/fantastic-four~il](https://www.flux.ai/dunghuynh2/fantastic-four~il)*