Basic electronics components list ( 55 ) :

Transistors

• 2N2222 - General purpose Si-NPN transistor 60..75V 0.8A 0.5W 250MHz B>100
• 2N3055 - general purpose power transistor 100V/15A/115W, old type in TO-3 metal case, still useful in linear power supplies   
• 2N3904 - General purpose Si-NPN 60V 0.1A 0.625W 250MHz B>100 TO-92 plastic case, look at   
• 2N3905 General purpose Si-PNP 40V 0.2A 0.625W 200MHz B>100, TO-92 plastic case, look at   
• 2N3906 - General purpose Si-PNP transistor   
• BC327 - General purpose Si-PNP transistor 50V 0.8A 0.625W 100MHz TO-92 plastic case   
• BC337 - General purpose Si-NPN transistor 50V 0.8A 0.625W 100MHz TO-92 plastic case   
• BC547 - General purpose Si-NPN transistor 50V 0.1A 0.5W 300MHz TO-92 plastic case   
• BC557 - General purpose Si-PNP transistor 50V 0.1A 0.5W 150MHz TO-92 plastic case   
• MJ2955 - Complementary Silicon PNP Power Transistor 15A/60V/115W   
• TIP31 NPN Epitaxial Silicon Power Transistor   
• TIP41C Power transistor in TO220 case NPN 6A 100V   

FET

• 2N3819 - N-channel JFET (soon to be obsolete), small signal, 25V 10mA 350 mW 400 MHz TO-92   
• BF245   
• BF245A - N-channel symmetrical junction field-effect transistor 700 MHz, interchangeability of drain and source connections, suitable for LF, HF and DC amplifiers, TO-92 variant package   
• BS170 N-Channel enhancement mode field effect transistor for low voltage, low current applications (up to 500 mA)   

Diodes

• 1N4007 rectifier diode 1A 1000V   
• 1N4148 General purpose silicon diode 0.2A 75V, High Conductance Fast Diode   

Thyristors and triacs

• TIC106M - Thyristor 5A 600V   
• TIC206M - TRIAC TO220 4A 600V   
• TIC263M - TRIAC TO218 25A 600V   

Opamps

• RC5532A Low noise dual operational amplifier - This is a very good for many audio designs. The 5532 has THD down around 0.0003% at normal levels and frequencies. The self noise is no worse than a 10 k ohm resistor. Read also   
• LM741 - general purpose operational amplifier, also known as   
• LM324 Low Power Quad Operational Amplifier - check alse   
• LM358   
• LM358 Low Power Dual Operational Amplifier   
• LM380 - 2.5W Audio Power Amplifier IC for consumer applications. Amplifier gain is internally fixed at 34 dB. Input stage allows ground referenced input signals and utput automatically self-centers to one-half the supply voltage. The output is short circuit proof with internal thermal limiting.   
• LM386 Low Voltage Audio Power Amplifier. The LM386 is a power amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low. This amplifier IC can drive 8 ohms speaker nicely with maximum power from 250 mW to 1W depending on operating voltage and IC version. Typical operating voltage range is 6-12V.   
• NE/SA/SE5532/5532A Internally-compensated dual low noise operational amplifier   
• TL072 Low noise dual operational amplifier   
• TL082   

Regulator ICs

• KA7805 - 3-Terminal 1A Positive Voltage Regulator for 5V output voltage   
• LM78xx series positive voltage regulators - up to 1A regulator at constant voltages (7805=+5V, 7808=+8V, 7812=+12V, 7815=+15V, 7818=+18V), includes overcurrent and therminal protection, input voltage range from output voltage + 2V to 24V, 7805 voltage regulator IC form this series for 5V output is very useful for   
• LM79xx series voltage regulators for negative voltages - practically same specifications as 78xx series but for negative voltages (7905=-5V, 7908=-8V, 7912=-12V, 7915=-15V, 7818=-18V)   
• L200 CH adjustable voltage and current regulator IC 2.9-36V, adjustable overcurrent protection, PENTAWATT case, check   
• LM 317 three pin variable voltage regulator for 1.2V to 37V and up to 1.5A current   

Interfacing ICs

• MAX232 - a very useful and easy to use RS-232 transmitter and receiver using single +5V power supply from   
• MAX220-MAX249 family of line drivers/receivers - intended for all EIA/TIA-232E and V.28/V.24 communications interfaces, particularly applications where �12V is not available.   
• ULN2803 - 8-bit 50V 500mA TTL compatible input NPN darlington driver. This driver is suitable for loads like lamps, relays printer hammers or other similar loads for a broad range of computer, industrial, and consumer applications. This device featurs open-collector outputs and free wheeling clamp diodes for transient suppression. The ULN2803 is designed to be compatible with standard TTL families.   
• ULN2804 - 8-bit 50V 500mA CMOS/PMOS compatible input NPN darlington driver. This driver is suitable for loads like lamps, relays printer hammers or other similar loads for a broad range of computer, industrial, and consumer applications. This device featurs open-collector outputs and free wheeling clamp diodes for transient suppression. The ULN2804 is optimized for 6 to 15 volt high level CMOS or PMOS.   

Logic ICs

• 4000 series CMOS logic IC pinouts   
• 7400 series TTL logic IC pinouts   
• 74xx/54xx Family TTL Circuits - drawings of some most commonly used types   
• Compact 74xxx databook - pinlayout, the connectionlayout, an functiontable and the most important specifications available for most important 7400 series ICs   

Microcontrollers

Optoisolators

• 4N25 optoisolator, CTR=20% (CTR=current transfer ratio), check   
• 4N37 optoisolator, CTR=100%   
• 6N138 optoisolater with split Darlington output, Vcc = 18 V max., 8 pin DIP, check    Rate this link
• 6N138 optoisolater with split Darlington output, Vcc = 18 V max., 8 pin DIP   
• CNY17 optoisolator, CTR for CNY17-3 is 100%, check   
• MOC3023 optodiac   

Other ICs

• EPROM and EEPROM datasheets - most common types shown   
• LM3914 Dot/Bar Display Drive - The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display. A single pin changes the display from a moving dot to a bar graph. Current drive to the LEDs is regulated and programmable, eliminating the need for resistors.   
• LM555 timer chip datasheet - check also   
• LM393 Dual Comparator   
• LM567 tone decoder   

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