basic electronics components list

This page is a component list for basic electronics components used and recommended by Tomi Engdahl. I use those components as basic components I use when I design small basic electronics circuits. The components in this list are widely available in Finland and propably most parts of Europe. I have included links to datasheets to most of the components listed on this page, but not for all. I don't sell any of the components listed in this page. This page is just ment as a quick refencence for common electronics components.

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 pinout
• 2N3905 General purpose Si-PNP 40V 0.2A 0.625W 200MHz B>100, TO-92 plastic case, look at pinout
• 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
• 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
• BF256 - N-Channel J-FET 30V 10mA 300mW 1GHz TO-92
• BF256A - N-Channel J-FET 30V 7mA 300mW 1GHz TO-92
• BF256B - N-Channel J-FET 30V 13mA 300mW 1GHz TO-92
• BS170 N-Channel enhancement mode field effect transistor for low voltage, low current applications (up to 500 mA)

Diodes

• 1N4004 - rectifier diode 1A 400V
• 1N4007 rectifier diode 1A 1000V
• 1N4148 General purpose silicon diode 0.2A 75V, High Conductance Fast Diode
• 1N4728A...1N4761A - Silicon Power Zener Diodes 3..75V
• 1N5404 - 3 ampere rectifier diode

Thyristors and triacs

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

Opamps

• RC5532 Low noise dual operational amplifier
• LM741 - general purpose operational amplifier, also known as UA741
• LM324 Low Power Quad Operational Amplifier - check alse datasheet from Philips
• LM358
• LM358 Low Power Dual Operational Amplifier
• LM741 - old and not very good operational amplifier, usable in non-demandign applications
• TL072 Low noise dual operational amplifier
• TL082

Regulator ICs

• 78xx series positive voltage regulators - up to 1A regulator at constant voltages (7805=5V, 7808=8V, 7812=12V, 7815=15V), 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 powering your TTL logic circuits
• 79xx series voltage regulators for negative voltages - practically same specifications as 78xx series but for negative voltages
• L200CH adjustable voltage and curren regulator IC 2.9-36V, adjustable overcurrent protection, PENTAWATT case, check pinout and designer's guide and download datasheet, check also A Designer's Guide to the L200 Voltage Regulator
• LM 317 three pin variable voltage regulator for 1.2V to 37V and up to 1.5A range

Interfacing ICs

• MAX232 - very useful and easy to use RS-232 transmitter and receiver using single +5V power supply from Maxim

Logic ICs

• 4000 series CMOS logic IC pinouts
• CD4017 CMOS decade counter
• 7400 series TTL logic IC pinouts
• Compact 74xxx databook - pinlayout, the connectionlayout, an functiontable and the most important specifications available for most important 7400 series ICs

Microcontrollers

• PIC 16F84 microcontroller from Microchip

Optoisolators

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

Other ICs

• EPROM and EEPROM datasheets - most common types
• LM555 timer chip datasheet - check also 555 information in Finnish, check also 555 Timer Design Tool
• LM567 tone decoder