| Analogue chips, transistors, sensors, actuators, PCB | 
| Classic digital technologies | Analogue chips and devices | Companies and chip manufacturers | Legacy | 
Electronic equipment is manufactured using semiconductor chips and components supplied by a huge pool of industries and distributors. This is the Electronic Components Industry Association (ECIA).
| Distributors | 
|  |  |  | 
|  |  |  | 
|  | 
| Electronic kits | 
|  |  |  | 
|  |  |  | 
| Active components | 
|  | OpAmp LM358 Dual low-power. Low bias curent, large output voltage swing (0 V to Vcc - 1.5 V). | 
|  | Voltage 
					reference chips LM285 1.2 V | 
|  | NPN small 
					signal BJT transistor BC547 | 
|  | NMOS 
					power transistor IRF530 | 
|  | PMOS power 
					transistor IRF9530, | 
|  | Optocouplers 4N25, CNY17F | 
|  | Rectifier diode 1N4004 | 
|  | LED 5mm standard light emitting diode (ref). | 
|  | LED bar HLCP-J100: 10-LED bar graphic array (ref.) (IF = 1 mA). | 
| PCB | 
|  | Hex-Standoff female-female, Nylon glass filled 25% (ref. 2). | 
|  | Integrated circuit DIP socket (ref. 1, ref. 2) | 
|  | Momentary push-button. | 
|  | Slide switch SPDT (single pole dual throw): ref. 1, ref.2 , ref. 3 | 
|  | Header 02x40 ref. datasheet. | 
|  | GPIO 40Pin cable + Female - Female connectors - 20cm, ref. 1, ref. 2. | 
|  | Female header or socket. | 
|  | Standard male header. | 
|  | Long male header (20 mm). | 
| Header female | |
|  | Electromechanical relay. | 
|  | Trimmer multiturn potentiometer. | 
|  | PCB terminal block. | 
|  | Rpack ref. 1, ref. 2. | 
| Sensors | 
|  | Centigrade 
					temperature sensor LM35. , 10 mV/°C. | 
|  | PIR motion 
					sensor HC_SR501. | 
| Actuators | 
|  | Stepper motor 9904_112_31004 Premotec NEMA 17, PBC Linear L297, ST, motor controller L298N, ULN2003A, power driver | 
|  | Power load switch TI TPS22950 | 
|  | Power load switch Torex XC6193 push-button smart load switch |