digilog.pk stocks a comprehensive range of integrated circuits, transistors, MOSFETs, diodes, optocouplers, voltage regulators, and semiconductor components for electronics engineers, PCB designers, and hobbyists in Pakistan. From classic 555 timers and 74-series logic ICs to modern LM317 regulators, IRF540N power MOSFETs, and TL431 references — we carry the semiconductors that real projects need, at competitive prices with fast delivery nationwide.

Why Buy Semiconductors from digilog.pk?

• Genuine parts — sourced from reliable distributors, not grey-market counterfeits
• Wide selection — 74HC series, 4000 CMOS, op-amps, comparators, power transistors, and more
• DIP and SMD packages — through-hole DIP for prototyping; SMD for compact PCB builds
• Datasheet-verified stock — every part listed against its original manufacturer datasheet

IC Categories

• Logic ICs — 74HC00, 74HC595 shift registers, 74HC245 buffers; 3.3V and 5V logic
• Timer ICs — NE555, LM556; for PWM generation, monostable, and astable circuits
• Op-Amps — LM358, LM741, TL071, TL072; for amplification, filtering, and comparator circuits
• Voltage regulators — 7805, 7812, 7912, LM317, LM337; linear regulation for power supplies
• EEPROM / Flash — AT24C02, W25Q32; non-volatile storage for embedded systems
• Motor driver ICs — L298N, L293D, A4988; for stepper and DC motor control

Transistors & MOSFETs

• NPN BJT — BC547, BC548, 2N2222, 2N3904; for switching and small-signal amplification
• PNP BJT — BC557, 2N2907; for high-side switching and complementary pairs
• N-Channel MOSFET — IRF540N, IRF3205, IRFZ44N; for high-current load switching
• P-Channel MOSFET — IRF9540; for high-side power switching
• IGBT — for motor drives, inverters, and high-power switching

Diodes

• Rectifier diodes — 1N4007, 1N5408; for power supply rectification
• Schottky diodes — 1N5819, SS34; low forward voltage for efficiency-critical circuits
• Zener diodes — 3.3V to 24V; for voltage reference and protection
• Bridge rectifiers — GBJ2510, W08M; full-wave rectification in one package

Related Categories

Use passives alongside semiconductors from Resistors & Capacitors. Drive motors using MOSFET-based drivers alongside our Motors & Actuators. Build complete circuits with Modules & Breakout Boards. Add to development boards from Development Boards.

Common Applications

• LED dimming — N-channel MOSFET + PWM from Arduino for smooth dimming of LED strips
• Power supply design — LM317 + resistors for adjustable regulated output
• Logic level conversion — 74HC logic for 3.3V↔5V signal bridging
• Audio amplifiers — TL072 op-amp based circuits for clean audio
• Motor H-bridge — discrete MOSFET H-bridge for high-current DC motor control

Learning Resources

• Transistor Tutorial — Electronics Tutorials — BJT operation, biasing, and switching circuits
• MOSFET Tutorial — Electronics Tutorials — N-channel switching, gate drive, and protection
• 74-Series Logic ICs — Wikipedia — complete family overview and logic families
• TI Op-Amp Application Note — practical op-amp circuit design guide

Need complete circuit boards instead of discrete components? Browse Modules & Breakout Boards for ready-to-use solutions. For bulk IC procurement for PCB production contact info@digilog.pk.