How do I find the value of a chip resistor?

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.

What is the function of chip resistor?

A chip resistor also known as surface-mount device or SMD resistor is an integrated circuit (IC) device designed in square or rectangular chip bundles. A chip resistor is a component that opposes the flow of electrical current. It is mainly used to operate, safeguard or control circuits.

How do you calculate the resistance of a SMD resistor?

It is based on the E96-series, thus aimed at resistors with 1% tolerance. Examples of converting EIA-96 markings to a resistance value: 01A ⇒ Code 01 = 100 with Multiplier A = 1 ⇒ 100 x 1 = 100 Ω ±1% 38C ⇒ Code 38 = 243 with Multiplier C = 100 ⇒ 243 x 100 = 24,300 Ω ±1%

What is the typical power rating of a chip resistor?

~0.01W to 2W+
General purpose chip resistors exhibit temperature coefficient of resistance (TCR) values as low as +/-100 ppm/o C, with operating temperature range from -55o C to 150o C+, and have nominal values from as low as 0 Ω to 20 MΩ+, with power ratings ranging from ~0.01W to 2W+.

What kind of coating does the chip resistor has?

For chip resistors, silver (Ag) is often used as the main material for electrodes. Silver, however, is easily corroded by sulfur (S) and gradually transforms into silver sulfide (Ag2S).

What happens when a resistor fails?

When a resistor breaks down, current typically flows through the burnt resistor without any resistance and thereby passes unchecked. Other components in the circuit may become damaged from the excess current flowing through.

What is 2R2 resistor?

2R2 Resistor color code / 2.2 Ω (Ohms) Two point two Ohms.