# 9V DIP-555 Red LED Flasher ## Description Hand-solderable 9V battery powered 555 timer circuit that blinks a red LED once per second through an on/off switch. ## Project Details - **Owner:** brooks - **Created:** 5/15/2026 - **Last Updated:** 5/15/2026 - **Visibility:** Public ## Key Components ### B1 — [967](https://www.flux.ai/jharwinbarrozo/967~fk9.md) - Manufacturer Name: Keystone Electronics - Role Details: 9V battery snap connector input - Manufacturer Part Number: 967 - Datasheet URL: https://www.keyelco.com/userAssets/file/K75p36.pdf - Part Type: Connectors - Role: Power Conversion **Pins:** - NEG [pin 2] - POS [pin 1] ### LED1 — [LTL-307EE](https://www.flux.ai/vasy_skral/ltl-307ee~a2.md) - Role: Signal Generation - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Lite-On Inc. - Manufacturer Part Number: LTL-307EE - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/1153/LTL-307EE.pdf - Part Type: LED - Role Details: Red LED blink output driven by U1 OUT through current-limiting resistor **Pins:** - A [pin 2] - K [pin 1] ### S1 — [AS11CH](https://www.flux.ai/adrian95/as11ch~i2s.md) - Manufacturer Part Number: AS11CH - Datasheet URL: https://www.nkkswitches.com/pdf/Aslides.pdf - Role Details: SPST switch disconnects 9V battery positive from circuit - Part Type: Switch - Role: Switching **Pins:** - P1 - P3 ### U1 — [NE555P](https://www.flux.ai/adrian95/ne555p~870.md) - Manufacturer Name: Texas Instruments - Symbol Style: parametric-v1 - Role Details: NE555P astable oscillator powered from switched 9V rail - Role: Signal Generation - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fse555 - Manufacturer Part Number: NE555P - Part Type: Integrated Circuit **Pins:** - CONT [pin 5] - DISCH [pin 7] - GND [pin 1] - OUT [pin 3] - RESET [pin 4] - THRES [pin 6] - TRIG [pin 2] - VCC [pin 8] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/brooks/9v-dip-555-red-led-flasher~ds](https://www.flux.ai/brooks/9v-dip-555-red-led-flasher~ds).* --- *Generated from [https://www.flux.ai/brooks/9v-dip-555-red-led-flasher~ds](https://www.flux.ai/brooks/9v-dip-555-red-led-flasher~ds)*