SMD Resistor Code Calculator
SMD Resistor Code Calculator Select Code Type: 3-Digit Code (e.g. 472)4-Digit Code (e.g. 4701)EIA-96 Code (e.g. 01A) Enter SMD Code:
LED Voltage Drop Calculator
⚡ LED Voltage Drop Calculator Calculate the current-limiting resistor needed for your LED circuit. Supply Voltage (Vs) V LED Forward Voltage (Vf) V LED Forward Current (If) mA 📊 Results Voltage Drop across Resistor: 9.90 V Required Resistor (R): 495.00 Ω Power Dissipated by Resistor: 198.00 mW Suggested Resistor Wattage: 0.40 W (use ≥) ✓…
Capacitor Code Calculator
Capacitor Code Calculator Enter 3-Digit Code (e.g. 104, 472, 220): Capacitance Value: Picofarads:— pF Nanofarads:— nF Microfarads:— µF Enter a valid 3-digit code How to Read the Code: 1 0 4 1st digit 2nd digit Multiplier (×10^n) Value = (D1·10 + D2) × 10^M pF Example: 104 = 10 × 10^4 = 100,000 pF =…
Series Resistor Calculator
🔌 Series Resistor Calculator Enter up to 5 resistor values (Ω). Leave blank to skip. Total resistance updates instantly. Total Resistance (Rtotal = R1+R2+…+Rn) 0.00 Ω 0.0000 kΩ 📐 Circuit Diagram R1 R2 R3 A B R_total = R1 + R2 + R3 + … + Rn 📊 Common Series Combinations R1 (Ω) R2 (Ω)…
Parallel Resistor Calculator
⚡ Parallel Resistor Calculator Enter resistor values in ohms (Ω). Leave empty if not used. Supports up to 6 resistors in parallel. R1 (Ω) R2 (Ω) R3 (Ω) R4 (Ω) R5 (Ω) R6 (Ω) Total Equivalent Resistance 68.75 Ω Calculated from 2 resistors Formula: 1/Rtotal = 1/R1 + 1/R2 + … + 1/Rn 🔌 Parallel…