What does 4R7 mean?
4R7 means 4.7 Ohms. 47K means 47 Kilo Ohms = 47 kΩ = 47000 Ohms.
What is SMD resistor code?
Resistor Code Format Standard-tolerance SMD resistors use a 3-digit code to mark the resistance value on the part. The first two numbers will indicate the significant digits, and the third will be the multiplier. ‘R’ is used to indicate the position of a decimal point.
How do I identify a SMD resistor?
Reading a SMD resistor code
- the first two numbers indicates the significant digits for the resistance, e.g. “22” indicates 22 ohms.
- the third number will be a multiplier that must be multiplier by the first two numbers, or will indicate how many zeros should be added to the first two numbers.
What value resistor is 4R7?
Lower values use “R” as a decimal point. For example 4R7 = 4.7 ohms, 34R8 = 34.8 ohms.
What does 1K5 mean resistor?
schematic 1k5 K means 1,000. therfore, 1K5 means 1500 ohm resistor. in the same way, 1k0 means 1000 ohm resistor.
What are the dimensions of a 1206 surface mount resistor?
3.0 x 1.5 0.12 x 0.06
SMD resistor packages
| Common Surface Mount Resistor Package Details | ||
|---|---|---|
| Package style | Size (mm) | Size (inches) |
| 1206 | 3.0 x 1.5 | 0.12 x 0.06 |
| 0805 | 2.0 x 1.3 | 0.08 x 0.05 |
| 0603 | 1.5 x 0.08 | 0.06 x 0.03 |
How do you read SMD markings?
The EIA SMD resistor coding scheme uses a three character code: the first 2 numbers indicate the 3 significant digits of the resistor value. The third character is a letter which indicates the multiplier.
What do the numbers on a resistor mean?
The Three and Four Digit Systems In these systems, the first two or three digits indicate the numerical resistance value of the resistor and the last digit gives a multiplier. The number of the last digit indicates the power of ten by which to multiply the given resistor value.
What is a SMD code?
CODEBOOK. SMD Codes. SMD devices are, by their very nature, too small to carry conventional semiconductor type numbers. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two- or three-character ID code.
How do I read SMD components?
There are two methods to indicate the resistance value on the SMD resistors’ appearance. 1. In Arabic numbers: the first two numbers indicate the absolute numbers of the resistance value, and the last number means the power of 10. For example, 103 means 10000Ω, 391 means 390Ω, 473 means 47000Ω.