东莞市平尚电子科技有限公司

At present, the models of chip resistors are not uniform and are set by each manufacturer. The model is particularly long (consisting of more than a dozen English letters and numbers). If you can correctly put forward the various parameters and specifications of chip resistors when purchasing, you can easily purchase (or order) the required resistors.
There are several parameters for chip resistors, namely size, resistance, tolerance, temperature coefficient and packaging.
Size series chip resistor series generally have one size, represented by two size codes. One size code is represented by a digit number (American Electronics Industry Association) code, the first two and the last two are respectively Indicates the length and width of the resistor in inches. The other is the metric code, which is also represented by a digit. The unit is millimeters. Resistors of different sizes have different power ratings. The table lists the resistor sizes. codes and power ratings.
The nominal resistance value of the resistance series is determined by series. Each series is divided by the tolerance of the chip resistor (the smaller the tolerance, the more resistance values are divided). The most commonly used ones are (The tolerance of the resistor value is To represent, and occupy one significant digit, the nominal resistance code representation method.
, Tolerance The tolerance of chip resistors (carbon film resistors) has levels, that is, level, level, level, level.

The temperature coefficient of temperature coefficient chip resistors has levels, that is, level, /°C level, /°C. Only resistors with tolerances of level 1 are used. Resistors with tolerances of other levels are generally level 1. .

Chip resistor packaging mainly includes bulk and tape packaging. The operating temperature range of chip resistors is +℃. The maximum operating voltage is the lowest related to the size, and is, is, and other sizes. for.