# [Walkthrough] Transistor Switch Relay p1 ## Project Details - **Owner:** cmattgo - **Created:** 10/14/2023 - **Last Updated:** 10/26/2023 - **Visibility:** Public - **Copies:** 2 ## Key Components ### B2 — [Battery Holder 1 Cell SMD](https://www.flux.ai/jharwinbarrozo/battery-holder-smd-1-cell-18650.md) - Voltage: 4.2V - Manufacturer Part Number: 1042 - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/userAssets/file/M65p27.pdf **Pins:** - NEGATIVE - POSITIVE ### J2 — [XY301V-A-5.0-3P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-3p.md) - Manufacturer Name: Microchip - Datasheet URL: https://datasheet.lcsc.com/lcsc/2005271131_Ningbo-Xinlaiya-Elec--XY301V-A-5-0-3P_C557652.pdf - Manufacturer Part Number: XY301V-A-5.0-3P **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] - PIN3 [pin 3] ### K1 — [SPDT SRD Series Form C](https://www.flux.ai/jharwinbarrozo/spdt-srd-series-form-c.md) - Part Type: Switch - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021933_Ningbo-Songle-Relay-SRD-05VDC-SL-C_C35449.pdf - Manufacturer Part Number: SRD-05VDC-SL-C - Manufacturer Name: Ningbo Songle Relay **Pins:** - A - B - COM - L1 - L2 ### Q1 — [S8050-JH](https://www.flux.ai/jharwinbarrozo/s8050-jh.md) - Manufacturer Part Number: S8050 - Beta / hFe: 300 **Pins:** - B - C - E ### SW1 — [B3FS-1050P](https://www.flux.ai/jharwinbarrozo/b3fs-1050p.md) - Manufacturer Name: OMRON - Part Type: Switch - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf - Manufacturer Part Number: B3FS-1050P **Pins:** - P1 - P2 *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/cmattgo/walkthrough-transistor-switch-relay-p1](https://www.flux.ai/cmattgo/walkthrough-transistor-switch-relay-p1).* --- *Generated from [https://www.flux.ai/cmattgo/walkthrough-transistor-switch-relay-p1](https://www.flux.ai/cmattgo/walkthrough-transistor-switch-relay-p1)*