What are the parameter specifications for surge resistant high-power surface mount resistors

There are various specifications for surge resistant high-power surface mount resistors, and the following are some common specification parameters:

1、 Package size
Common packaging sizes include 0402, 0603, 0805, 1206, 1210, 2010, 2512, etc. These dimensions typically represent the length and width of the resistor, typically measured in millimeters (mm). For example, 0603 represents a resistor with a length of 0.60 ± 0.10mm and a width of 0.30 ± 0.10mm.

2、 Resistance value and accuracy
The range of resistance values is wide, ranging from 1 Ω to 10M Ω or even higher.
There are usually multiple options for accuracy, such as ± 0.5%, ± 1%, ± 5%, etc., depending on the manufacturing process and application requirements of the resistor.
3、 Rated power
Rated power refers to the maximum power that a resistor can withstand under normal operating conditions. The rated power of surge resistant high-power surface mount resistors is usually high, which can meet the needs of high-power applications. Common rated power includes 1/16W, 1/8W, 1/4W, 1/3W, 1/2W, 3/4W, 1W, etc. Some special models have even higher resistor power.

4、 Maximum operating voltage
The maximum operating voltage refers to the maximum voltage that a resistor can withstand under normal operating conditions. Different models of surge resistant high-power surface mount resistors have varying maximum operating voltages, typically ranging from tens to hundreds of volts.

5、 Other parameters
Temperature coefficient: represents the degree to which the resistance value changes with temperature. Surge resistant high-power surface mount resistors typically have a lower temperature coefficient to ensure stability at different temperatures.
Resistance temperature characteristics: describe the characteristics of resistance value changing with temperature, including positive temperature coefficient (PTC) and negative temperature coefficient (NTC) types.
Moisture resistance: Refers to the stability of a resistor in a humid environment. Surge resistant high-power surface mount resistors typically have good moisture resistance to adapt to various environmental applications.
In addition, different brands of surge resistant high-power surface mount resistors may also have specific specification parameters, such as special materials and designs, terminal electrode types, packaging methods, etc. When selecting surge resistant high-power surface mount resistors, it is necessary to determine the appropriate specification parameters based on specific application scenarios and requirements.

Please note that the above specifications are for reference only, and specific values may vary depending on different brands, models, and manufacturing processes. In practical applications, it is recommended to consult specific product data manuals or consult suppliers for accurate specification information.