# ESP32 AUTOMATION ## Project Details - **Owner:** snvnk78 - **Created:** 2/27/2026 - **Last Updated:** 3/14/2026 - **Visibility:** Public - **System Architecture:** flowchart TD VIN["6-36V DC Input"] --> PROTECT["EMI Filter + Reverse Polarity + TVS"] PROTECT --> BUCK5["Buck 5V"] BUCK5 --> LDO33["3.3V Regulator"] PROTECT --> V24["24V Load Rail"] MCU["ESP32-S3 Module Header"] --> I2C["I2C Bus"] I2C --> IOX["MCP23017 IO Expander"] MCU --> NEOPIX["NeoPixel Header"] MCU --> ADC["0-10V Analog Input Front End"] MCU --> DACPWM["0-10V Analog Output Stage"] IOX --> OUTDRV["Isolated High-Side Outputs Opto + P-MOSFET (500mA)"] OUTDRV --> LOADS["24V Loads"] LOADS --> V24 IOX --> INDIG["Isolated Digital Inputs 6-24V Bidirectional Optos"] INDIG --> FIELDIN["Field Inputs"] FIELDIN --> V24 LDO33 --> MCU LDO33 --> IOX BUCK5 --> NEOPIX ## Key Components ### D1 — SS34LWHRVG 88oE - MOUSER PART NUMBER: 821-SS34LWHRVG - DATASHEET LINK: https://datasheet.datasheetarchive.com/originals/distributors/DKDS-20/389381.pdf - MANUFACTURER_NAME: Taiwan Semiconductor - COMMENT: SS34LWHRVG - HEIGHT: 1.02mm - ARROW PART NUMBER: SS34LWHRVG - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Taiwan-Semiconductor/SS34LWHRVG?qs - MANUFACTURER_PART_NUMBER: SS34LWHRVG - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ss34lwhrvg/taiwan-semiconductor?region **Pins:** - A [pin 2] - K [pin 1] ### D10 — LED 6ehA - COMMENT: LED - ASID PART NUMBER: LED-AS **Pins:** - A [pin A] - K [pin K] ### D11 — SMBJ30A gsTa - COMMENT: SMBJ30A - DATASHEET LINK: https://www.st.com/resource/en/datasheet/smbj12a.pdf - HEIGHT: 2.45mm - MANUFACTURER_NAME: STMicroelectronics - MANUFACTURER_PART_NUMBER: SMBJ30A **Pins:** - A [pin 2] - K [pin 1] ### D12 — SS34LWHRVG 88oE - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Taiwan-Semiconductor/SS34LWHRVG?qs - MANUFACTURER_PART_NUMBER: SS34LWHRVG - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ss34lwhrvg/taiwan-semiconductor?region - ARROW PART NUMBER: SS34LWHRVG - HEIGHT: 1.02mm - MANUFACTURER_NAME: Taiwan Semiconductor - MOUSER PART NUMBER: 821-SS34LWHRVG - DATASHEET LINK: https://datasheet.datasheetarchive.com/originals/distributors/DKDS-20/389381.pdf - COMMENT: SS34LWHRVG **Pins:** - A [pin 2] - K [pin 1] ### D13 — SS34LWHRVG 88oE - MANUFACTURER_PART_NUMBER: SS34LWHRVG - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Taiwan-Semiconductor/SS34LWHRVG?qs - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ss34lwhrvg/taiwan-semiconductor?region - ARROW PART NUMBER: SS34LWHRVG - HEIGHT: 1.02mm - DATASHEET LINK: https://datasheet.datasheetarchive.com/originals/distributors/DKDS-20/389381.pdf - MANUFACTURER_NAME: Taiwan Semiconductor - MOUSER PART NUMBER: 821-SS34LWHRVG - COMMENT: SS34LWHRVG **Pins:** - A [pin 2] - K [pin 1] ### D14 — SS34LWHRVG 88oE - DATASHEET LINK: https://datasheet.datasheetarchive.com/originals/distributors/DKDS-20/389381.pdf - MANUFACTURER_NAME: Taiwan Semiconductor - MOUSER PART NUMBER: 821-SS34LWHRVG - COMMENT: SS34LWHRVG - HEIGHT: 1.02mm - ARROW PART NUMBER: SS34LWHRVG - MANUFACTURER_PART_NUMBER: SS34LWHRVG - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Taiwan-Semiconductor/SS34LWHRVG?qs - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ss34lwhrvg/taiwan-semiconductor?region **Pins:** - A [pin 2] - K [pin 1] ### D15 — SMBJ30A gsTa - DATASHEET LINK: https://www.st.com/resource/en/datasheet/smbj12a.pdf - HEIGHT: 2.45mm - MANUFACTURER_NAME: STMicroelectronics - COMMENT: SMBJ30A - MANUFACTURER_PART_NUMBER: SMBJ30A **Pins:** - A [pin 2] - K [pin 1] ### D16 — SS34LWHRVG 88oE - HEIGHT: 1.02mm - DATASHEET LINK: https://datasheet.datasheetarchive.com/originals/distributors/DKDS-20/389381.pdf - MANUFACTURER_NAME: Taiwan Semiconductor - MOUSER PART NUMBER: 821-SS34LWHRVG - COMMENT: SS34LWHRVG - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Taiwan-Semiconductor/SS34LWHRVG?qs - MANUFACTURER_PART_NUMBER: SS34LWHRVG - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ss34lwhrvg/taiwan-semiconductor?region - ARROW PART NUMBER: SS34LWHRVG **Pins:** - A [pin 2] - K [pin 1] ### D2 — SS34LWHRVG 88oE - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Taiwan-Semiconductor/SS34LWHRVG?qs - MANUFACTURER_PART_NUMBER: SS34LWHRVG - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ss34lwhrvg/taiwan-semiconductor?region - ARROW PART NUMBER: SS34LWHRVG - HEIGHT: 1.02mm - MOUSER PART NUMBER: 821-SS34LWHRVG - DATASHEET LINK: https://datasheet.datasheetarchive.com/originals/distributors/DKDS-20/389381.pdf - MANUFACTURER_NAME: Taiwan Semiconductor - COMMENT: SS34LWHRVG **Pins:** - A [pin 2] - K [pin 1] ### D3 — SMBJ30A gsTa - MANUFACTURER_PART_NUMBER: SMBJ30A - MANUFACTURER_NAME: STMicroelectronics - HEIGHT: 2.45mm - DATASHEET LINK: https://www.st.com/resource/en/datasheet/smbj12a.pdf - COMMENT: SMBJ30A **Pins:** - A [pin 2] - K [pin 1] ### D4 — SS34LWHRVG 88oE - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Taiwan-Semiconductor/SS34LWHRVG?qs - MANUFACTURER_PART_NUMBER: SS34LWHRVG - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ss34lwhrvg/taiwan-semiconductor?region - ARROW PART NUMBER: SS34LWHRVG - HEIGHT: 1.02mm - MOUSER PART NUMBER: 821-SS34LWHRVG - MANUFACTURER_NAME: Taiwan Semiconductor - DATASHEET LINK: https://datasheet.datasheetarchive.com/originals/distributors/DKDS-20/389381.pdf - COMMENT: SS34LWHRVG **Pins:** - A [pin 2] - K [pin 1] ### D5 — LED 6ehA - ASID PART NUMBER: LED-AS - COMMENT: LED **Pins:** - A [pin A] - K [pin K] ### D6 — SMBJ30A gsTa - DATASHEET LINK: https://www.st.com/resource/en/datasheet/smbj12a.pdf - HEIGHT: 2.45mm - MANUFACTURER_NAME: STMicroelectronics - COMMENT: SMBJ30A - MANUFACTURER_PART_NUMBER: SMBJ30A **Pins:** - A [pin 2] - K [pin 1] ### D7 — SMBJ30A gsTa - COMMENT: SMBJ30A - DATASHEET LINK: https://www.st.com/resource/en/datasheet/smbj12a.pdf - MANUFACTURER_NAME: STMicroelectronics - HEIGHT: 2.45mm - MANUFACTURER_PART_NUMBER: SMBJ30A **Pins:** - A [pin 2] - K [pin 1] ### D8 — LED 6ehA - ASID PART NUMBER: LED-AS - COMMENT: LED **Pins:** - A [pin A] - K [pin K] ### D9 — SMBJ30A gsTa - MANUFACTURER_PART_NUMBER: SMBJ30A - DATASHEET LINK: https://www.st.com/resource/en/datasheet/smbj12a.pdf - HEIGHT: 2.45mm - MANUFACTURER_NAME: STMicroelectronics - COMMENT: SMBJ30A **Pins:** - A [pin 2] - K [pin 1] ### F1 — 3425L300_36MR ee1J - MANUFACTURER_PART_NUMBER: 3425L300/36MR - COMMENT: 3425L300_36MR - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Littelfuse/3425L300-36MR?qs - ARROW PART NUMBER: 3425L300/36MR - MOUSER PART NUMBER: 576-3425L300/36MR - ARROW PRICE/STOCK: https://www.arrow.com/en/products/3425l30036mr/littelfuse?region - DATASHEET LINK: https://www.arrow.com/en/products/3425l30036mr/littelfuse?region - HEIGHT: 1.4mm - MANUFACTURER_NAME: LITTELFUSE **Pins:** - 1 [pin 1] - 2 [pin 2] ### J1 — 1729128 - MANUFACTURER_PART_NUMBER: 1729128 - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Phoenix-Contact/1729128?qs - ARROW PRICE/STOCK: https://www.arrow.com/en/products/1729128/phoenix-contact?utm_currency - MOUSER PART NUMBER: 651-1729128 - MANUFACTURER_NAME: Phoenix Contact - HEIGHT: 10.15mm - ARROW PART NUMBER: 1729128 - DATASHEET LINK: https://www.phoenixcontact.com/en-us/products/printed-circuit-board-terminal-mkdsn-15-2-508-1729128?type - COMMENT: 1729128 **Pins:** - 1 [pin 1] - 2 [pin 2] ### J2 — Header 5 fo4G - COMMENT: Header 5 - ASID PART NUMBER: Header 5-AS **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] ### J3 — HIF3FC-26PA-2.54DSA_71_ echU - MOUSER PART NUMBER: 798-HIF3FC26PA254D71 - COMMENT: HIF3FC-26PA-2.54DSA_71_ - VALUE: FC-26 - MANUFACTURER_NAME: Hirose - MANUFACTURER_PART_NUMBER: HIF3FC-26PA-2.54DSA(71) - HEIGHT: 12mm - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Hirose-Connector/HIF3FC-26PA-2.54DSA71?qs - DATASHEET LINK: https://datasheet.datasheetarchive.com/originals/distributors/SFDatasheet-7/sf-000141320.pdf **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J4 — 282837-3 dxPj - MANUFACTURER_NAME: TE Connectivity - MOUSER PART NUMBER: 571-2828373 - COMMENT: 282837-3 - HEIGHT: 10.3mm - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/TE-Connectivity/282837-3?qs - MANUFACTURER_PART_NUMBER: 282837-3 - ARROW PART NUMBER: 282837-3 - DATASHEET LINK: https://www.te.com/commerce/DocumentDelivery/DDEController?Action - ARROW PRICE/STOCK: https://www.arrow.com/en/products/282837-3/te-connectivity?utm_currency **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J5 — Header 4 utif - ASID PART NUMBER: Header 4-AS - COMMENT: Header 4 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### PS1 — TLV75733PDBVR 8bKX - COMMENT: TLV75733PDBVR - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Texas-Instruments/TLV75733PDBVR?qs - HEIGHT: 1.45mm - MANUFACTURER_NAME: Texas Instruments - MANUFACTURER_PART_NUMBER: TLV75733PDBVR - MOUSER PART NUMBER: 595-TLV75733PDBVR - DATASHEET LINK: http://www.ti.com/lit/gpn/tlv757p - ARROW PART NUMBER: TLV75733PDBVR - ARROW PRICE/STOCK: https://www.arrow.com/en/products/tlv75733pdbvr/texas-instruments?utm_currency **Pins:** - EN [pin 3] - GND [pin 2] - IN [pin 1] - NC [pin 4] - OUT [pin 5] ### U1 — IRFR5305TRPBF eDjy - MANUFACTURER_PART_NUMBER: IRFR5305TRPBF - COPYRIGHT: Copyright (C) 2025 Ultra Librarian. All rights reserved. - COMMENT: IRFR5305TRPBF - MANUFACTURER_NAME: Infineon - TYPE: Type - REFDES: RefDes **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### U10 — MCP23017T-E_SS qn74 - COMMENT: MCP23017T-E_SS - DATASHEET LINK: https://datasheet.datasheetarchive.com/originals/distributors/SFDatasheet-4/sf-00090057.pdf - MANUFACTURER_NAME: Microchip - ARROW PART NUMBER: MCP23017T-E/SS - MOUSER PART NUMBER: 579-MCP23017T-E/SS - ARROW PRICE/STOCK: https://www.arrow.com/en/products/mcp23017t-ess/microchip-technology?utm_currency - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Microchip-Technology/MCP23017T-E-SS?qs - MANUFACTURER_PART_NUMBER: MCP23017T-E/SS - HEIGHT: 2mm **Pins:** - A0 [pin 15] - A1 [pin 16] - A2 [pin 17] - GPA0 [pin 21] - GPA1 [pin 22] - GPA2 [pin 23] - GPA3 [pin 24] - GPA4 [pin 25] - GPA5 [pin 26] - GPA6 [pin 27] - GPA7 [pin 28] - GPB0 [pin 1] - GPB1 [pin 2] - GPB2 [pin 3] - GPB3 [pin 4] - GPB4 [pin 5] - GPB5 [pin 6] - GPB6 [pin 7] - GPB7 [pin 8] - INTA [pin 20] - INTB [pin 19] - NC_1 [pin 11] - NC_2 [pin 14] - R\E\S\E\T\ [pin 18] - SCL [pin 12] - SDA [pin 13] - VDD [pin 9] - VSS [pin 10] ### U11 — LTV-817S feqQ - MANUFACTURER_NAME: Lite-On - MANUFACTURER_PART_NUMBER: LTV-817S - ARROW PART NUMBER: LTV-817S - COMMENT: LTV-817S - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ltv-817s/lite-on-technology?utm_currency - DATASHEET LINK: http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series%20201610%20.pdf - MOUSER PART NUMBER: 859-LTV-817S - HEIGHT: 4.6mm - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Lite-On/LTV-817S?qs **Pins:** - ANODE [pin 1] - CATHODE [pin 2] - COLLECTOR [pin 4] - EMITTER [pin 3] ### U12 — OPA197IDR 2SrZ - HEIGHT: 1.75mm - MANUFACTURER_PART_NUMBER: OPA197IDR - MANUFACTURER_NAME: Texas Instruments - ARROW PART NUMBER: OPA197IDR - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Texas-Instruments/OPA197IDR?qs - MOUSER PART NUMBER: 595-OPA197IDR - ARROW PRICE/STOCK: https://www.arrow.com/en/products/opa197idr/texas-instruments?utm_currency - COMMENT: OPA197IDR - DATASHEET LINK: http://www.ti.com/lit/gpn/opa197 **Pins:** - -IN [pin 2] - +IN [pin 3] - NC_1 [pin 1] - NC_2 [pin 5] - NC_3 [pin 8] - OUT [pin 6] - V- [pin 4] - V+ [pin 7] ### U13 — REF5025AIDGKR 4UpP - ARROW PART NUMBER: REF5025AIDGKR - DATASHEET LINK: http://www.ti.com/lit/gpn/REF5025 - HEIGHT: 1.1mm - MOUSER PART NUMBER: 595-REF5025AIDGKR - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Texas-Instruments/REF5025AIDGKR?qs - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ref5025aidgkr/texas-instruments?utm_currency - COMMENT: REF5025AIDGKR - MANUFACTURER_NAME: Texas Instruments - MANUFACTURER_PART_NUMBER: REF5025AIDGKR **Pins:** - DNC_1 [pin 1] - DNC_2 [pin 8] - GND [pin 4] - NC [pin 7] - TEMP [pin 3] - TRIM/NR [pin 5] - VIN [pin 2] - VOUT [pin 6] ### U14 — AD5683RARMZ 3Ec2 - MOUSER PART NUMBER: 584-AD5683RARMZ - MANUFACTURER_NAME: Analog Devices - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ad5683rarmz/analog-devices?utm_currency - ARROW PART NUMBER: AD5683RARMZ - MANUFACTURER_PART_NUMBER: AD5683RARMZ - HEIGHT: 1.1mm - DATASHEET LINK: https://www.analog.com/media/en/technical-documentation/data-sheets/AD5683R_5682R_5681R_5683.pdf - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Analog-Devices/AD5683RARMZ?qs - COMMENT: AD5683RARMZ **Pins:** - GND [pin 5] - L\D\A\C\ [pin 4] - R\E\S\E\T\ [pin 3] - S\Y\N\C\ [pin 7] - SCLK [pin 6] - SDI [pin 8] - VDD [pin 1] - VLOGIC [pin 2] - VOUT [pin 10] - VREF [pin 9] ### U15 — IRFR5305TRPBF eDjy - MANUFACTURER_NAME: Infineon - TYPE: Type - REFDES: RefDes - COPYRIGHT: Copyright (C) 2025 Ultra Librarian. All rights reserved. - MANUFACTURER_PART_NUMBER: IRFR5305TRPBF - COMMENT: IRFR5305TRPBF **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### U16 — H11AA1SM 2hyL - DATASHEET LINK: https://www.onsemi.com/pub/Collateral/H11AA4M-D.pdf - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/onsemi-Fairchild/H11AA1SM?qs - HEIGHT: 4.8mm - MANUFACTURER_PART_NUMBER: H11AA1SM - ARROW PART NUMBER: H11AA1SM - ARROW PRICE/STOCK: https://www.arrow.com/en/products/h11aa1sm/on-semiconductor?utm_currency - MANUFACTURER_NAME: onsemi - MOUSER PART NUMBER: 512-H11AA1SM - COMMENT: H11AA1SM **Pins:** - ANODE/CATHODE [pin 2] - BASE [pin 6] - CATHODE/ANODE [pin 1] - COLLECTOR [pin 5] - EMITTER [pin 4] - NOT_CONNECTED [pin 3] ### U17 — IRFR5305TRPBF eDjy - COPYRIGHT: Copyright (C) 2025 Ultra Librarian. All rights reserved. - MANUFACTURER_PART_NUMBER: IRFR5305TRPBF - COMMENT: IRFR5305TRPBF - MANUFACTURER_NAME: Infineon - REFDES: RefDes - TYPE: Type **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### U18 — ESP32-S3-ZERO bV7C - MP: ESP32-S3-Zero - MF: Waveshare Electronics - SNAPEDA_LINK: https://www.snapeda.com/parts/ESP32-S3-Zero/Waveshare+Electronics/view-part/?ref - PACKAGE: None - COMMENT: ESP32-S3-ZERO - CHECK_PRICES: https://www.snapeda.com/parts/ESP32-S3-Zero/Waveshare+Electronics/view-part/?ref **Pins:** - 3V3(OUT) [pin 3V3] - 5V [pin 5V] - GND [pin GND] - GP1 [pin 1] - GP10 [pin 10] - GP11 [pin 11] - GP12 [pin 12] - GP13 [pin 13] - GP2 [pin 2] - GP3 [pin 3] - GP4 [pin 4] - GP5 [pin 5] - GP6 [pin 6] - GP7 [pin 7] - GP8 [pin 8] - GP9 [pin 9] - RX [pin RX] - TX [pin TX] ### U19 — H11AA1SM 2hyL - DATASHEET LINK: https://www.onsemi.com/pub/Collateral/H11AA4M-D.pdf - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/onsemi-Fairchild/H11AA1SM?qs - HEIGHT: 4.8mm - MANUFACTURER_NAME: onsemi - ARROW PRICE/STOCK: https://www.arrow.com/en/products/h11aa1sm/on-semiconductor?utm_currency - ARROW PART NUMBER: H11AA1SM - MANUFACTURER_PART_NUMBER: H11AA1SM - MOUSER PART NUMBER: 512-H11AA1SM - COMMENT: H11AA1SM **Pins:** - ANODE/CATHODE [pin 2] - BASE [pin 6] - CATHODE/ANODE [pin 1] - COLLECTOR [pin 5] - EMITTER [pin 4] - NOT_CONNECTED [pin 3] ### U2 — H11AA1SM 2hyL - MOUSER PART NUMBER: 512-H11AA1SM - COMMENT: H11AA1SM - MANUFACTURER_NAME: onsemi - ARROW PRICE/STOCK: https://www.arrow.com/en/products/h11aa1sm/on-semiconductor?utm_currency - ARROW PART NUMBER: H11AA1SM - MANUFACTURER_PART_NUMBER: H11AA1SM - HEIGHT: 4.8mm - DATASHEET LINK: https://www.onsemi.com/pub/Collateral/H11AA4M-D.pdf - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/onsemi-Fairchild/H11AA1SM?qs **Pins:** - ANODE/CATHODE [pin 2] - BASE [pin 6] - CATHODE/ANODE [pin 1] - COLLECTOR [pin 5] - EMITTER [pin 4] - NOT_CONNECTED [pin 3] ### U20 — IRFR5305TRPBF eDjy - REFDES: RefDes - TYPE: Type - MANUFACTURER_NAME: Infineon - COMMENT: IRFR5305TRPBF - MANUFACTURER_PART_NUMBER: IRFR5305TRPBF - COPYRIGHT: Copyright (C) 2025 Ultra Librarian. All rights reserved. **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### U21 — H11AA1SM 2hyL - MOUSER PART NUMBER: 512-H11AA1SM - COMMENT: H11AA1SM - MANUFACTURER_PART_NUMBER: H11AA1SM - ARROW PART NUMBER: H11AA1SM - ARROW PRICE/STOCK: https://www.arrow.com/en/products/h11aa1sm/on-semiconductor?utm_currency - MANUFACTURER_NAME: onsemi - HEIGHT: 4.8mm - DATASHEET LINK: https://www.onsemi.com/pub/Collateral/H11AA4M-D.pdf - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/onsemi-Fairchild/H11AA1SM?qs **Pins:** - ANODE/CATHODE [pin 2] - BASE [pin 6] - CATHODE/ANODE [pin 1] - COLLECTOR [pin 5] - EMITTER [pin 4] - NOT_CONNECTED [pin 3] ### U22 — SN74AHCT1G125DBVR gr6x - HEIGHT: 1.45mm - DATASHEET LINK: http://www.ti.com/lit/ds/symlink/sn74ahct1g125.pdf - COMMENT: SN74AHCT1G125DBVR - ARROW PART NUMBER: SN74AHCT1G125DBVR - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Texas-Instruments/SN74AHCT1G125DBVR?qs - MANUFACTURER_NAME: Texas Instruments - MANUFACTURER_PART_NUMBER: SN74AHCT1G125DBVR - MOUSER PART NUMBER: 595-SNAHCT1G125DBVR - ARROW PRICE/STOCK: https://www.arrow.com/en/products/sn74ahct1g125dbvr/texas-instruments?utm_currency **Pins:** - A [pin 2] - GND [pin 3] - O\E\ [pin 1] - VCC [pin 5] - Y [pin 4] ### U23 — LTV-817S feqQ - HEIGHT: 4.6mm - MOUSER PART NUMBER: 859-LTV-817S - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Lite-On/LTV-817S?qs - COMMENT: LTV-817S - ARROW PART NUMBER: LTV-817S - MANUFACTURER_PART_NUMBER: LTV-817S - MANUFACTURER_NAME: Lite-On - DATASHEET LINK: http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series%20201610%20.pdf - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ltv-817s/lite-on-technology?utm_currency **Pins:** - ANODE [pin 1] - CATHODE [pin 2] - COLLECTOR [pin 4] - EMITTER [pin 3] ### U24 — H11AA1SM 2hyL - COMMENT: H11AA1SM - MOUSER PART NUMBER: 512-H11AA1SM - ARROW PART NUMBER: H11AA1SM - MANUFACTURER_PART_NUMBER: H11AA1SM - MANUFACTURER_NAME: onsemi - ARROW PRICE/STOCK: https://www.arrow.com/en/products/h11aa1sm/on-semiconductor?utm_currency - HEIGHT: 4.8mm - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/onsemi-Fairchild/H11AA1SM?qs - DATASHEET LINK: https://www.onsemi.com/pub/Collateral/H11AA4M-D.pdf **Pins:** - ANODE/CATHODE [pin 2] - BASE [pin 6] - CATHODE/ANODE [pin 1] - COLLECTOR [pin 5] - EMITTER [pin 4] - NOT_CONNECTED [pin 3] ### U25 — IRFR5305TRPBF eDjy - MANUFACTURER_NAME: Infineon - TYPE: Type - REFDES: RefDes - MANUFACTURER_PART_NUMBER: IRFR5305TRPBF - COPYRIGHT: Copyright (C) 2025 Ultra Librarian. All rights reserved. - COMMENT: IRFR5305TRPBF **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### U26 — LTV-817S feqQ - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ltv-817s/lite-on-technology?utm_currency - DATASHEET LINK: http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series%20201610%20.pdf - MANUFACTURER_PART_NUMBER: LTV-817S - MANUFACTURER_NAME: Lite-On - ARROW PART NUMBER: LTV-817S - COMMENT: LTV-817S - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Lite-On/LTV-817S?qs - MOUSER PART NUMBER: 859-LTV-817S - HEIGHT: 4.6mm **Pins:** - ANODE [pin 1] - CATHODE [pin 2] - COLLECTOR [pin 4] - EMITTER [pin 3] ### U3 — LM5164DDAR 9Ec9 - ARROW PART NUMBER: LM5164DDAR - COMMENT: LM5164DDAR - HEIGHT: 1.7mm - ARROW PRICE/STOCK: https://www.arrow.com/en/products/lm5164ddar/texas-instruments?utm_currency - DATASHEET LINK: http://www.ti.com/lit/ds/symlink/lm5164.pdf - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Texas-Instruments/LM5164DDAR?qs - MANUFACTURER_PART_NUMBER: LM5164DDAR - MOUSER PART NUMBER: 595-LM5164DDAR - MANUFACTURER_NAME: Texas Instruments **Pins:** - BST [pin 7] - EN/UVLO [pin 3] - EP [pin 9] - FB [pin 5] - GND [pin 1] - PGOOD [pin 6] - RON [pin 4] - SW [pin 8] - VIN [pin 2] ### U4 — LTV-817S feqQ - HEIGHT: 4.6mm - MOUSER PART NUMBER: 859-LTV-817S - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Lite-On/LTV-817S?qs - ARROW PART NUMBER: LTV-817S - COMMENT: LTV-817S - MANUFACTURER_PART_NUMBER: LTV-817S - MANUFACTURER_NAME: Lite-On - DATASHEET LINK: http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series%20201610%20.pdf - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ltv-817s/lite-on-technology?utm_currency **Pins:** - ANODE [pin 1] - CATHODE [pin 2] - COLLECTOR [pin 4] - EMITTER [pin 3] ### U5 — ADS1115IDGSR eFuW - MOUSER PART NUMBER: 595-ADS1115IDGSR - DATASHEET LINK: http://www.ti.com/lit/gpn/ADS1115 - HEIGHT: 1.1mm - MANUFACTURER_PART_NUMBER: ADS1115IDGSR - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ads1115idgsr/texas-instruments.html?utm_currency - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Texas-Instruments/ADS1115IDGSR?qs - ARROW PART NUMBER: ADS1115IDGSR - MANUFACTURER_NAME: Texas Instruments - COMMENT: ADS1115IDGSR **Pins:** - ADDR [pin 1] - AIN0 [pin 4] - AIN1 [pin 5] - AIN2 [pin 6] - AIN3 [pin 7] - ALERT/RDY [pin 2] - GND [pin 3] - SCL [pin 10] - SDA [pin 9] - VDD [pin 8] ### U6 — LTV-817S feqQ - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Lite-On/LTV-817S?qs - MOUSER PART NUMBER: 859-LTV-817S - HEIGHT: 4.6mm - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ltv-817s/lite-on-technology?utm_currency - DATASHEET LINK: http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series%20201610%20.pdf - MANUFACTURER_NAME: Lite-On - MANUFACTURER_PART_NUMBER: LTV-817S - ARROW PART NUMBER: LTV-817S - COMMENT: LTV-817S **Pins:** - ANODE [pin 1] - CATHODE [pin 2] - COLLECTOR [pin 4] - EMITTER [pin 3] ### U7 — LTV-817S feqQ - MANUFACTURER_PART_NUMBER: LTV-817S - MANUFACTURER_NAME: Lite-On - COMMENT: LTV-817S - ARROW PART NUMBER: LTV-817S - ARROW PRICE/STOCK: https://www.arrow.com/en/products/ltv-817s/lite-on-technology?utm_currency - DATASHEET LINK: http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series%20201610%20.pdf - MOUSER PART NUMBER: 859-LTV-817S - HEIGHT: 4.6mm - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/Lite-On/LTV-817S?qs **Pins:** - ANODE [pin 1] - CATHODE [pin 2] - COLLECTOR [pin 4] - EMITTER [pin 3] ### U8 — H11AA1SM 2hyL - HEIGHT: 4.8mm - DATASHEET LINK: https://www.onsemi.com/pub/Collateral/H11AA4M-D.pdf - MOUSER PRICE/STOCK: https://www.mouser.co.uk/ProductDetail/onsemi-Fairchild/H11AA1SM?qs - COMMENT: H11AA1SM - MOUSER PART NUMBER: 512-H11AA1SM - ARROW PART NUMBER: H11AA1SM - MANUFACTURER_PART_NUMBER: H11AA1SM - ARROW PRICE/STOCK: https://www.arrow.com/en/products/h11aa1sm/on-semiconductor?utm_currency - MANUFACTURER_NAME: onsemi **Pins:** - ANODE/CATHODE [pin 2] - BASE [pin 6] - CATHODE/ANODE [pin 1] - COLLECTOR [pin 5] - EMITTER [pin 4] - NOT_CONNECTED [pin 3] ### U9 — IRFR5305TRPBF eDjy - COMMENT: IRFR5305TRPBF - MANUFACTURER_PART_NUMBER: IRFR5305TRPBF - COPYRIGHT: Copyright (C) 2025 Ultra Librarian. All rights reserved. - TYPE: Type - REFDES: RefDes - MANUFACTURER_NAME: Infineon **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/snvnk78/esp32-automation](https://www.flux.ai/snvnk78/esp32-automation).* --- *Generated from [https://www.flux.ai/snvnk78/esp32-automation](https://www.flux.ai/snvnk78/esp32-automation)*