In WWF series, resistors up to 5W, the resistance value is colour coded with 3 bands plus a tolerance band. An additional white band indicates that the resistor is fusible. For resistors 6W and above, the value is printed on the resistor.
What are fusible resistors?
[¦fyü·zə·bəl ri′zis·tər] (electricity) A resistor designed to protect a circuit against overload; its resistance limits current flow and thereby protects against surges when power is first applied to a circuit; its fuse characteristic opens the circuit when current drain exceeds design limits.
Which resistor is used for fuse?
fusible resistor
A fusible resistor opens like a fuse when its current rating is exceeded. The component is generally a nichrome element with a melting temperature of around 1,400°C. Nichrome has a low thermal coefficient of resistance which allows the resistor to have a stable resistance over temperature.
What is the value of fusible resistor?
A fusible resistor can pass the pulse of a high voltage of 500v without failure. But it must be fuse without flames when 100v short circuit overloads. We manufacture any fusible resistors between the resistance range of 10Ω to 100Ω. These values are used to the required circuit.
What color is a 10 ohm resistor?
10 Ohm Resistor Color Code: Brown, Black, Black, Golden.
How do you determine the color code of a 5 band resistor?
The fourth band (or 5th for the 5-band and 6-band) indicates the tolerance values. Here, two colors are added (gold and silver). The 6th band for a 6-band type resistor is the temperature coefficient….Resistor Band Colors.
| Color | Value |
|---|---|
| Red | 2 |
| Orange | 3 |
| Yellow | 4 |
| Green | 5 |
Can I replace a resistor with a fuse?
Fusible resistors are a thing. They’re not suitable for all places where you would normally use a fuse, but they’re a great idea for situations where the normal current is quite low and the fault current will be high, because they fuse very quickly and without making a mess.
What is 1k resistor?
A resistor reduces (or resists) the flow of current. So, a 1k Ω resistor has a value of 1,000 ohms and the number we will code is 1,000.
What is resistor 10R?
The more commonly used SI notation for ohms (mainly because omega isn’t easily found on the keyboard) is to use R. For example, 10W is written as 10R, 4700W is equivalent to 4.7KW and is written as 4K7 where the K replaces the decimal point and represents 1000.
What color is a 2K resistor?
2K Ohm Resistor Color Code: Red, Black, Red, Golden.
What are the color codes of resistors?
Black
What do the colors on resistors indicate?
The bands on a resistor indicate its resistance value. For example, if the resistor has color bands of yellow, violet, red, and gold as one reads from left to right, the first number will be 4, the second number will be 7, the multiplier will be 100, and the fourth band of gold means the tolerance will be +/-5%.
What is the color code for a resistor?
The standard color coding method for resistors uses a different color to represent each number 0 to 9: black, brown, red, orange, yellow, green, blue, purple, gray, white. On a 4 band resistor, the first two bands represent the significant digits. On a 5 and 6 band, the first three bands are the significant digits.
What are the colors of a resistor?
Resistor Color Code Chart and Resistance Calculator. Resistors have standard colors for identification of the resistance value. In order, the colors are: black, brown, red, orange, yellow, green, blue, violet, gray, and white. Reading resistors is a very simple procedure if you use the chart and formula below.
