What are the key points of color ring inductance recognition method?The following is to follow the China inductor manufacturers to understand:
Key points for color ring inductance identification
Note point 1: Use ambient temperature
Color ring inductance in the circuit heating is what kind of situation, color ring inductance is generally used between 40 degrees below zero to 120 degrees, but the temperature can not be too big difference.
If the temperature is too high, the inductance will decrease.Why is this specific, if the temperature of the color ring inductance exceeds 140 degrees, then the inductance will drop sharply, because the use of the inductance temperature is higher, then the influence of the inductance products will be greater, the majority of users in the process of use should pay attention to the temperature of the circuit.
Inductance is not capable of sustained use at high temperatures.This should be paid attention to in the process of use.
Note point two: Color ring inductance reading introduction
Introduction to the color ring inductance: the color ring inductance is the same as the color ring resistance of the four rings. However, the precision of the inductance is far less than that of the resistor. Generally, the carbon film resistance is 5%
As with resistors, if you have experience, you can use the E24 sequence list of resistors (1.0, 1.1, 1.2 through 9.1). So is inductance.The color ring inductance is the same as the color ring resistance of the four rings, but the precision of the inductance is far less than the resistance. Generally, the carbon film resistance is 5%, and the inductance is 10%(the silver ring is the last ring). Therefore, it is very common to put the silver ring on the far right.
The first ring and the second ring from the left are Numbers, and the third ring is ten to the power of, say, brown, black, brown, silver, 10*10 to the power of one, calculated in microhenrys (uH, for comparison, after the color ring resistance reads, in ohms), and silver represents plus or minus 10% accuracy.
Color ring colors represent Numbers: 1, 2 red, orange 3 brown, yellow, green, blue 6, 5 4 purple, white ash 8, 9, 7 black color ring color represents the ratio of 0: brown * 10, 100, orange, red * * 1 * 10 k k, yellow, green, blue * 1 m * 100 k, purple * 10 m * 100 * 1000 m m, white, ash, black * 0.01 * 1 * 0.1, gold and silver color ring color represents the level of error: gold, silver, 5% and 10% 0.5% 2% 1%, brown, red, green, blue, purple, 0.25% and 0.1% 20%, ash 0.05%, colorless
The above is about the color ring inductance identification of the two points of attention, I hope to have a certain help for you!If you are looking for an inductor factory, please contact us~
Post time: Oct-18-2020