# External Moccasin Liquid Breathing Apparatus 4faa ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** circuitos640 - **Created:** 2/13/2026 - **Last Updated:** 2/13/2026 - **Visibility:** Public ## Key Components ### U1 — [4N25M](https://www.flux.ai/lcsc/4n25m.md) - JLCPCB Part Class: Extended Part - Manufacturer Part Number: 4N25M - LCSC Part Number: C433443 - Part Type: Optocouplers - Phototransistor Output - Manufacturer Name: ISOCOM(英国安数光) - Package or Case Code: DIP-6_L7.1-W6.5-P2.54-LS7.6-BL **Pins:** - 1 [pin 1] - 2 [pin 2] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - NC [pin 3] ### U2 — [4N25M](https://www.flux.ai/lcsc/4n25m.md) - Manufacturer Name: ISOCOM(英国安数光) - Package or Case Code: DIP-6_L7.1-W6.5-P2.54-LS7.6-BL - Manufacturer Part Number: 4N25M - LCSC Part Number: C433443 - JLCPCB Part Class: Extended Part - Part Type: Optocouplers - Phototransistor Output **Pins:** - 1 [pin 1] - 2 [pin 2] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - NC [pin 3] ### U3 — [4N25M](https://www.flux.ai/lcsc/4n25m.md) - Manufacturer Part Number: 4N25M - LCSC Part Number: C433443 - JLCPCB Part Class: Extended Part - Part Type: Optocouplers - Phototransistor Output - Manufacturer Name: ISOCOM(英国安数光) - Package or Case Code: DIP-6_L7.1-W6.5-P2.54-LS7.6-BL **Pins:** - 1 [pin 1] - 2 [pin 2] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - NC [pin 3] ### U4 — [4N25M](https://www.flux.ai/lcsc/4n25m.md) - Package or Case Code: DIP-6_L7.1-W6.5-P2.54-LS7.6-BL - Manufacturer Name: ISOCOM(英国安数光) - Part Type: Optocouplers - Phototransistor Output - JLCPCB Part Class: Extended Part - LCSC Part Number: C433443 - Manufacturer Part Number: 4N25M **Pins:** - 1 [pin 1] - 2 [pin 2] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - NC [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/circuitos640/external-moccasin-liquid-breathing-apparatus-4faa](https://www.flux.ai/circuitos640/external-moccasin-liquid-breathing-apparatus-4faa).* --- *Generated from [https://www.flux.ai/circuitos640/external-moccasin-liquid-breathing-apparatus-4faa](https://www.flux.ai/circuitos640/external-moccasin-liquid-breathing-apparatus-4faa)*