# Adjustable Timer Circuit ## Project Details - **Owner:** alanargondizza - **Created:** 9/18/2020 - **Last Updated:** 10/15/2020 - **Visibility:** Public ## Key Components ### ? — [NPN Transistor](https://www.flux.ai/jharwinbarrozo/npn-transistor~hqd.md) - Beta / hFe: 100 - Leakage Current: 1e-13A **Pins:** - B - C - E ### ? — [Ground](https://www.flux.ai/jharwinbarrozo/ground~og.md) **Pins:** - undefined ### ? — [Ground](https://www.flux.ai/jharwinbarrozo/ground~og.md) **Pins:** - undefined ### ? — [PNP Transistor](https://www.flux.ai/jharwinbarrozo/pnp-transistor~bl.md) - Leakage Current: 1e-13A - Beta / hFe: 100 **Pins:** - B - C - E ### ? — [Schottky Diode](https://www.flux.ai/lwcassid/schottky-diode~zf.md) - Series Resistance: 2.8Ω - Saturation Current: 3.15e-7A - Emission Coefficient: 2.03 - Breakdown Voltage: 70V **Pins:** - Anode - Cathode ### ? — 555 Timer **Pins:** - 1 (GND) - 2 (TRIG) - 3 (OUT) - 4 (RESET) - 5 (CONT) - 6 (THRES) - 7 (DISCH) - 8 (Vcc) ### ? — [NPN Transistor](https://www.flux.ai/jharwinbarrozo/npn-transistor~hqd.md) - Leakage Current: 1e-13A - Beta / hFe: 100 **Pins:** - B - C - E ### 10 K ohm — [Fixed Resistor](https://www.flux.ai/lwcassid/fixed-resistor~nf.md) - Tolerance: 5% - Wattage: 0.25W - Resistance: 10000Ω **Pins:** - undefined - a - b ### 10 ohm — [Fixed Resistor](https://www.flux.ai/lwcassid/fixed-resistor~nf.md) - Resistance: 10Ω - Wattage: 0.25W - Tolerance: 5% **Pins:** - undefined - a - b ### 1000uF — [Polarized Capacitor](https://www.flux.ai/lwcassid/polarized-capacitor~ax.md) - Capacitance: 999μF **Pins:** - Anode - Cathode ### 10pF — [Non Polarized Capacitor](https://www.flux.ai/lwcassid/non-polarized-capacitor~9q.md) - Capacitance: 1e-6F - Voltage Rating: 80V - Capacitance: 10pF **Pins:** - a - b ### 1M ohm — [Potentiometer](https://www.flux.ai/jharwinbarrozo/potentiometer~nk3.md) - Resistance: 1000KΩ **Pins:** - undefined - undefined - undefined ### 9V Battery — Multi Cell Battery **Pins:** - Anode - Cathode ### 9V buzzer — [Buzzer](https://www.flux.ai/lwcassid/buzzer~ip.md) **Pins:** - undefined - undefined ### Push Button — Push Button (Normally Open) **Pins:** - Vin - Vout *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/alanargondizza/adjustable-timer-circuit~7c](https://www.flux.ai/alanargondizza/adjustable-timer-circuit~7c).* --- *Generated from [https://www.flux.ai/alanargondizza/adjustable-timer-circuit~7c](https://www.flux.ai/alanargondizza/adjustable-timer-circuit~7c)*