# Neckdown-Fixture-ULN2003 ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** brianbenchoff - **Created:** 3/31/2026 - **Last Updated:** 7/21/2026 - **Visibility:** Public - **Copies:** 1 ## Key Components ### D1 — [LED THT](https://www.flux.ai/jharwinbarrozo/led-tht~gr.md) - Emission Coefficient: 3.73 - Series Resistance: 0.42Ω - Breakdown Voltage: 0V - Saturation Current: 93.2e-12A - Forward Voltage: 1.70 **Pins:** - A [pin 2] - K [pin 1] ### D2 — [LED THT](https://www.flux.ai/jharwinbarrozo/led-tht~gr.md) - Emission Coefficient: 3.73 - Series Resistance: 0.42Ω - Forward Voltage: 1.70 - Saturation Current: 93.2e-12A - Breakdown Voltage: 0V **Pins:** - A [pin 2] - K [pin 1] ### D3 — [LED THT](https://www.flux.ai/jharwinbarrozo/led-tht~gr.md) - Forward Voltage: 1.70 - Saturation Current: 93.2e-12A - Breakdown Voltage: 0V - Emission Coefficient: 3.73 - Series Resistance: 0.42Ω **Pins:** - A [pin 2] - K [pin 1] ### D4 — [LED THT](https://www.flux.ai/jharwinbarrozo/led-tht~gr.md) - Forward Voltage: 1.70 - Saturation Current: 93.2e-12A - Breakdown Voltage: 0V - Emission Coefficient: 3.73 - Series Resistance: 0.42Ω **Pins:** - A [pin 2] - K [pin 1] ### D5 — [LED THT](https://www.flux.ai/jharwinbarrozo/led-tht~gr.md) - Emission Coefficient: 3.73 - Series Resistance: 0.42Ω - Breakdown Voltage: 0V - Forward Voltage: 1.70 - Saturation Current: 93.2e-12A **Pins:** - A [pin 2] - K [pin 1] ### D6 — [LED THT](https://www.flux.ai/jharwinbarrozo/led-tht~gr.md) - Saturation Current: 93.2e-12A - Forward Voltage: 1.70 - Breakdown Voltage: 0V - Emission Coefficient: 3.73 - Series Resistance: 0.42Ω **Pins:** - A [pin 2] - K [pin 1] ### D7 — [LED THT](https://www.flux.ai/jharwinbarrozo/led-tht~gr.md) - Breakdown Voltage: 0V - Forward Voltage: 1.70 - Saturation Current: 93.2e-12A - Emission Coefficient: 3.73 - Series Resistance: 0.42Ω **Pins:** - A [pin 2] - K [pin 1] ### Q1 — [ULN2003](https://www.flux.ai/lcsc/uln2003~yh66.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2006131234_YW-ULN2003_C557873.pdf - Part Type: Darlington Transistor Arrays - Package or Case Code: SOP-16_L10.0-W3.9-P1.27-LS6.0-BL - Manufacturer Name: YW(友旺) - JLCPCB Part Class: Extended Part - Manufacturer Part Number: ULN2003 - LCSC Part Number: C557873 - Product Info Url: https://lcsc.com/product-detail/Darlington-Transistors_YW-ULN2003_C557873.html **Pins:** - 1B [pin 1] - 1C [pin 16] - 2B [pin 2] - 2C [pin 15] - 3B [pin 3] - 3C [pin 14] - 4B [pin 4] - 4C [pin 13] - 5B [pin 5] - 5C [pin 12] - 6B [pin 6] - 6C [pin 11] - 7B [pin 7] - 7C [pin 10] - COM [pin 9] - E [pin 8] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/brianbenchoff/neckdown-fixture-uln2003~b4](https://www.flux.ai/brianbenchoff/neckdown-fixture-uln2003~b4).* --- *Generated from [https://www.flux.ai/brianbenchoff/neckdown-fixture-uln2003~b4](https://www.flux.ai/brianbenchoff/neckdown-fixture-uln2003~b4)*