# USB-C UV-C Water Sterilizer LED Driver ## Description Low-cost USB-C 5V UV-C LED driver PCB for drinking-water sterilization prototypes with current limiting and safety interlock. ## Project Details - **Owner:** vittesh - **Created:** 7/7/2026 - **Last Updated:** 7/7/2026 - **Visibility:** Public - **Power Requirements:** USB-C - **Operating Voltage:** 5V - **Human Interface:** Status LED - **Domain:** Water Treatment ## Key Components ### D1 — [G3535N1UVS10U12 275NM](https://www.flux.ai/lcsc/g3535n1uvs10u12-275nm~uekq.md) - Role: UV-C emitter - Manufacturer Name: Silverlight(银月光) - Role Details: Dangerous UV-C source; must be enclosed and interlocked. Sterilization dose depends on flow/chamber. - Manufacturer Part Number: G3535N1UVS10U12 275NM - LCSC Part Number: C2915617 - Package or Case Code: LED-SMD_3P-L3.5-W3.5-FD - Part Type: Ultra Violet LEDs **Pins:** - - [pin 2] - + [pin 1] - nc [pin 3] ### D2 — [0603GBD0790S01](https://www.flux.ai/adrian95/0603gbd0790s01~iak.md) - Manufacturer Part Number: 0603GBD0790S01 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/4336/0603GBD0790S01.pdf - Manufacturer Name: ORIENTAL TECHNOLOGY - Role: UV-on indicator **Pins:** - A [pin 2] - K [pin 1] ### F1 — [SMD050F-2](https://www.flux.ai/adrian95/smd050f-2.md) - Manufacturer Part Number: SMD050F-2 - License: https://creativecommons.org/licenses/by/4.0/ - Mount: Surface Mount - Manufacturer Name: Littelfuse - Current Rating: 500mA hold / 1A trip - Datasheet URL: https://www.littelfuse.com/assetdocs/littelfuse-ptc-smd-datasheet?assetguid=e664881a-0c68-4836-928b-7ed2f0c2a6da - Part Type: Circuit Protection Devices **Pins:** - ~ [pin 2] - ~ [pin 1] ### J1 — [Type-C-2.0-6Pin](https://www.flux.ai/lcsc/type-c-2p0-6pin~3phf.md) - Manufacturer Name: Global Connector Technology - Symbol Style: parametric-v1 - LCSC Part Number: C7374563 - Package or Case Code: TYPE-C-SMD_TYPE-C-6P-2 - Role: USB-C 5V input - Manufacturer Part Number: USB4515-GF-A - Datasheet URL: https://www.snapeda.com/parts/USB4515-GF-A/Global%20Connector%20Technology/datasheet/ - JLCPCB Part Class: Extended Part - Part Type: USB Connectors **Pins:** - CC1 [pin A5] - CC2 [pin B5] - EH [pin 7] - GND [pin B12] - GND [pin A12] - VBUS [pin A9] - VBUS [pin B9] ### J2 — [OSTTA024163](https://www.flux.ai/adrian95/ostta024163~o2d.md) - Role: Safety interlock connector - Datasheet URL: https://www.on-shore.com/wp-content/uploads/OSTTAXX4163.pdf - Manufacturer Name: On Shore Technology Inc. - Part Type: Connector - Manufacturer Part Number: OSTTA024163 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] - P2 [pin 2] ### U1 — [BCR421UFD-7](https://www.flux.ai/cherepanyadima/bcr421ufd-7~v2.md) - Manufacturer Name: Diodes - Datasheet URL: https://www.diodes.com/assets/Datasheets/BCR420UFD-BCR421UFD.pdf - Part Type: Integrated Circuit - Role Details: Assumed single 275nm LED at low current from USB 5V; verify Vf/headroom thermally. - Symbol Style: Parametric - Role: UV-C LED constant current driver - Manufacturer Part Number: BCR421UFD-7 **Pins:** - EN [pin 4] - GND [pin 6] - NC [pin 3] - NC [pin 1] - OUT [pin 2] - OUT__1 [pin 2_1] - REXT [pin 5] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vittesh/usb-c-uv-c-water-sterilizer-led-driver~z6](https://www.flux.ai/vittesh/usb-c-uv-c-water-sterilizer-led-driver~z6).* --- *Generated from [https://www.flux.ai/vittesh/usb-c-uv-c-water-sterilizer-led-driver~z6](https://www.flux.ai/vittesh/usb-c-uv-c-water-sterilizer-led-driver~z6)*