Resistors & Capacitors

digilog.pk stocks a wide range of resistors, capacitors, inductors, and passive component kits for electronics hobbyists, students, and professional PCB assemblers in Pakistan. From carbon film resistor assortments covering 1Ω to 10MΩ to high-voltage ceramic capacitors and precision electrolytic series, we carry the passive components you need for prototyping and production — at the best prices with fast nationwide delivery.

Why Stock Up on Passives?

• Kits save money — assortment packs cost far less per component than buying individual values
• Always-needed parts — every electronics project requires resistors and capacitors for pull-ups, decoupling, and filtering
• Standard values — we stock the full E24 and E96 resistor series and standard capacitor values
• SMD and through-hole — both footprints available for breadboard prototyping and PCB assembly

Resistors

• Carbon film resistors — 1/4W, 1/2W; E24 series; most common for through-hole prototyping
• Metal film resistors — 1% tolerance; for precision analog circuits and voltage dividers
• SMD resistor kits — 0402, 0603, 0805 packages in 170-value assortments
• Potentiometers — linear and logarithmic; for volume controls, calibration, and user input
• Resistor networks — SIP and DIP bussed arrays for pull-up/pull-down on data buses

Capacitors

• Electrolytic (aluminium) — 1µF to 4700µF; for power supply filtering and bulk decoupling
• Ceramic disc — 1pF to 100nF; for high-frequency bypass and coupling
• Multilayer ceramic (MLCC) — SMD 0402–1206; for PCB decoupling next to ICs
• Film capacitors — polyester and polypropylene; for audio crossovers and motor run capacitors
• Tantalum — compact high-capacitance SMD; for low-ESR power rail filtering
• Supercapacitors (EDLC) — 1F to 100F; for energy buffering and backup power

Related Categories

Use resistors and capacitors alongside ICs, Transistors & Semiconductors to build complete analog and digital circuits. Prototype on breadboards with Modules & Breakout Boards. Connect components using jumper wires from Cables & Connectors. Build power supply filter stages alongside Power Supplies & Adapters.

Common Applications

• Pull-up/pull-down resistors — 10kΩ on I2C lines, button inputs, and open-drain outputs
• Power supply decoupling — 100nF ceramic + 10µF electrolytic per IC power pin
• RC filters — low-pass and high-pass filtering for audio and sensor signals
• Voltage dividers — resistor pairs for ADC input scaling on Arduino
• LED current limiting — series resistor calculated for LED forward current

How to Choose

1. Power rating — 1/4W for signal circuits; 1/2W or 1W for power stages
2. Tolerance — 5% carbon film for general use; 1% metal film for precision voltage dividers
3. Capacitor type — ceramic for bypass (high frequency); electrolytic for bulk storage (low frequency)
4. Voltage rating — always choose capacitors rated at least 2× the working voltage

Learning Resources

• Electronics Tutorials — Resistors — Ohm's law, colour codes, and resistor types explained
• Electronics Tutorials — Capacitors — capacitance, charge/discharge, and types
• E-Series Preferred Values — Wikipedia — why resistors come in E12/E24/E96 values
• Resistor Colour Code Calculator — DigiKey — decode 4 and 5 band resistors instantly

Need ICs and transistors to build complete circuits? Browse ICs, Transistors & Semiconductors. For bulk component procurement for PCB production or educational institutions contact info@digilog.pk.