smd resistor code

Описание

An SMD resistor is a type of resistor that has been designed to be surface mounted. These SMD resistors are typically much smaller

3-digit code

Standard-tolerance SMD resistors are marked with a simple 3-digit code. The first two numbers will indicate the significant digits, and the third will be the multiplier, telling you the power of ten to which the two significant digits must be multiplied (or how many zeros to add). Resistances of less than 10 ohms do not have a multiplier, the letter 'R' is used instead to indicate the position of the decimal point.

3-digit code examples:

220 = 22 * 10^0 = 22Ω
471 = 47 * 10^1 = 470Ω
102 = 10 * 10^2 = 1000Ω =1kΩ
3R3 = 3.3Ω

4-digit Surface Mount Resistor codes examples:

4700 = 470 * 10^0 = 470Ω
2001 = 200 x 10^1 = 2000Ω = 2kΩ
1002 = 100 x 10^2 = 10000Ω = 10kΩ
15R0 = 15.0Ω