NE555 – Timer IC (DIP Package) IC, TIMER Operating Mode: Astable / Monostable No. of Timers: 1 Clock External Input: No Frequency: 500kHz Supply Voltage Range: 4.5V to 16V Digital IC Case Style: DIP No. of Pins: 8 Operating Temperature...

These are common NPN transistor BC548 rated at 0.1A/30V.   Download:    BC548 WiKi

The LM358 is a great, easy-to-use dual-channel opamp. Opamps have so many applications we figured we should probably carry at least one in a DIP package. LM358 applications include transducer amplifiers, DC gain blocks and all the conventional...

Opto-isolator with transistor output for interfacing to noisy loads. This 16-pin dip can be used in conjunction with relays, small motors, etc. to allow a simple microcontroller to turn on and off up to 50mA per channel.   Datasheets: PS2501...

The DS1077 is a dual-output, programmable, oscillator requiring no external components for operation. The DS1077 can be used as a processor-controlled frequency synthesizer or as a standalone oscillator. The two synchronous output operating frequencies...

The 'must have' IC for 5V projects. This is the RS232 converter IC that is capable of running at 5V and communicating with 5V logic.This chip comes in a 16-pin DIP package. Requires four external capacitors. The MAX232 can use very small 0.1uF ceramic...

The 'must have' IC for 3V projects. This is the RS232 converter IC that is capable of running at 3V and communicating with 3V logic. Comes in an easy to solder 16-Pin SOIC SMD package. Requires four external 0.1uF ceramic capacitors - no more 10uF...

The MM74HC595 high speed shift register utilizes advanced silicon-gate CMOS technology. This device possesses the high noise immunity and low power consumption of standard CMOS integrated circuits, as well as the ability to drive 15 LS-TTL loads...

When interfacing 3.3V devices with a 5V Arduino, the logic level needs to be shifted. Most 3.3V devices will be damaged if operated with 5V signals, while others will simply operate unreliably. This is where the inexpensive 74LVC245 comes in. It is...

Basic voltage regulators in the TO-220 package. A must have for basic 5V electronics.    Download:     Datasheet

Basic voltage regulators in the TO-220 package. Adjustable regulator can be set from 1.25V up to 25V output with two external resistors. Check out the LM317 calculator for more information.   Download:     Datasheet

This is a pack of 10 of simple, very common rectifier diode. Often used for reverse voltage protection, the 1N4001 is a staple for many power, DC to DC step up, and breadboard projects. 1N4001 is rated for up to 1A/50V.    Download:  ...