With the continuous development of electronic products,Chip resistorAs an indispensable part of electronic components, its identification methods are becoming increasingly diverse. In order to facilitate engineers to quickly identify patches with different resistance valuesresistance, the resistor screen printing comparison table has become an essential tool. This article will introduce you to the basic knowledge of chip resistor screen printing in detail, and provide a complete comparison table to help you easily identify the resistance values of various chip resistors.
1. What is chip resistor screen printing?Chip resistor silk screen printing refers to the numerical and alphabetical codes printed on the surface of the chip resistor to identify the resistance value and error range of the resistor. Due to the small size of chip resistors, it is not practical to directly mark the resistance value. Therefore, a simplified encoding method is used to transmit resistance information through a combination of numbers and letters. This encoding standard makes identification faster and easier.2. Basic coding rules for chip resistor screen printingCommon chip resistor screen printing mainly uses three or four digit coding:Three-digit code: the first two digits are significant digits, and the third digit is the multiplier. For example, "103" means 10×10^3=10kΩ.Four-digit code: the first three digits are significant digits, and the fourth digit is the multiplier. For example, "1001" means 100×10^1=1kΩ.
In addition, there are letters indicating error levels, such as F (±1%), G (±2%), J (±5%), etc.
3. Common resistance codes and corresponding resistance valuesThe following are some common silk screen codes and their corresponding resistance values (unit: ohms):000: 0Ω (through)101：100Ω
102：1kΩ
103：10kΩ
104：100kΩ
105：1MΩ
222：2.2kΩ
472：4.7kΩ
These codes are the most common in daily design, and once mastered, most chip resistors can be quickly identified.4. How to judge the error level through silk screen printingError levels are usually expressed by letters, common ones are:F：±1%G：±2%
J：±5%
K：±10%
M：±20%
Understanding the error level helps to select a resistor that suits the circuit needs and ensures stable circuit performance.5. Special markings and precautions for chip resistorsSome chip resistors will be marked with special symbols or letters, such as "R" representing the decimal point position, such as "4R7" representing 4.7Ω. In addition, some high-precision resistors will be coded with five digits, so special attention needs to be paid when identifying them.6. How to use chip resistor screen printing comparison tableWhen using the silk screen comparison table, first confirm the coding type (three or four digits) on the resistor, and then look for the corresponding resistance value. For codes containing letters, the error level should also be confirmed. Combined with the circuit design requirements, select the appropriate resistance value and error level to ensure the normal operation of the circuit.7. Advantages of chip resistor screen printing comparison tableFast identification: avoid misjudgments and improve work efficiencyConvenient purchasing: accurately choose the required resistance value
Guarantee quality: Reasonably match the error level and improve circuit stability
The chip resistor screen printing comparison table is one of the essential tools for electronic engineers. Proficient in the screen printing rules and comparison tables can greatly improve the efficiency of component identification and avoid design errors caused by misidentification. This article introduces the coding rules, common resistance values and error levels of chip resistors in detail, and provides usage methods to help you easily cope with the identification needs of various chip resistors. I hope this complete version of the comparison table can be a helpful assistant in your work.
