When decoding the resistor color bands, consult a resistor color code table like the one below. For the first two bands, find that color's corresponding digit value. The 4.7kΩ resistor shown here has color bands of yellow and violet to begin - which have digit values of 4 and 7 (47). The 4 digit SMD resistor code 1001 stands for 1 kΩ, in words: one Kiloohm resistance. This is a simple online calculator for color band resistor marking, inductor color band marking, ceramic or tantalum capacitor 3 digit marking and SMD resistor 3-digit, 4-digit, 10%, 5%, 2% and EIA-96 (E96) 1% tolerance code marking.
It uses a 2 digit code plus a letter (a total of 3 alphanumeric characters) to indicate 1% resistance values to three significant digits. The 2 digits (from '01' to '96') are a code that indicates one of the 96 'positions' in the standard E96 series of 1% resistor values. The letter is a code that indicates a power of ten multiplier. The Resistor Color Code Calculator identifies the value and tolerance of a color coded resistor given its bands colors. Supports resistors with 3, 4, 5 and 6 bands.
Some good values to try: As supply voltage: For molex: 5, 7 and 12 volts Batteries: 1.5 and 9 volts As led forward voltages: Red and green: 2 volts Blue and white: 3.0 - 3.5 volts Led current: 20mA will work for most regular leds. Superbright leds can go from 30mA up to several amps. |
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Smd Resistor Code Pdf
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Enter any two values to find the third one:
Smd Transistor Code Calculator
About this calculator
Note that you can enter values in typical formats. Case is ignored.
- For frequencies, '10k', '5KHZ','8MHz' and '1M' are all valid.
- For resistors, '100R', '470r', '1k2','47k', '2M2', and '10M' are all valid.
- For capacitors, '22p', '330p', '2n2', '10nF', '4.7u', '4u7', and '22uF' are all valid.
Since case is ignored, 'milli' prefixes will be interpreted as 'Mega'. This only really affects frequency.
A '1% resistor' usually means +/-1% tolerance. This calculator works this way. 10% is +/-10%.
Smd Resistor Code Marking
Capacitors and Resistors are both limited to a 'typical' range; 10pF to <10000uF for caps, 1Ω to <100MΩ for resistors. Outside this range things will probably turn to nonsense.