Evaluation technology for power bearing capacity of chip resistor paste

Chip resistor paste, as a key material in modern electronic industry, directly affects the performance and reliability of electronic products in terms of its power bearing capacity. Accurately evaluating the power bearing capacity of chip resistor paste is of great significance for ensuring the long-term stable operation of electronic products. This article will provide a detailed introduction on how to evaluate the power bearing capacity of chip resistor paste, and discuss it with Advanced Institute (Shenzhen) Technology Co., LtdYB5302 chip resistor paste from Yanbo brandProvide an example for illustration.

1、 Principles and Methods of Evaluation

1. Resistance value and rated power:
   Chip resistor pasteThe power bearing capacity mainly depends on its resistance value and rated power. The resistance value (in ohms) represents the degree of obstruction when current passes through, while the rated power (in watts) refers to the maximum power that a resistor can withstand under rated operating conditions.

2. Power calculation formula:
   According to Ohm's Law, the power of a resistor can be calculated using the following formula: power=current ² x resistance value. In practical measurements, current and voltage values can be obtained through ammeters and voltmeters, and then the power of the resistor can be calculated according to the above formula.

3. Consideration of safety factor:
   To ensure the safe and stable operation of the circuit, a safety factor is usually selected for the resistor. The safety factor refers to adding a certain percentage of extra protection margin on the basis of rated power. Generally speaking, the range of safety factor values is 1.2-2.0.

2、 Experiment and data comparison

1. Experimental materials:
   This experiment usesYB5302 chip resistor paste from Yanbo brandIts working temperature range is 25 ℃, viscosity is 100-200Pa. s, and it has good printability and process stability.

2. Experimental plan:
   Print YB5302 chip resistor paste from Yanbo brand onto a standard substrate to form a resistor film of a certain size. Then, measure the voltage values at different currents using an ammeter and voltmeter, and calculate the power of the resistor. Meanwhile, a control group was set up and the same experiment was conducted using chip resistor pastes from other brands.

3. Data comparison:

   • At the same current, the power loss of YB5302 chip resistor paste from Yanbo brand is about 10% lower than other brands.
   • When the current increases to a certain value, the power loss of other brands of resistor pastes sharply increases, while the YB5302 brand of Yanbo exhibits a more stable power loss curve.
   • With a safety factor of 1.5, the actual power bearing capacity of YB5302 chip resistor paste from Yanbo brand exceeds 20% of its rated power, while other brands only have around 10%.

3、 Influencing factors and solutions

1. Environmental temperature:
   The rated power of a resistor is given under certain temperature conditions. If the ambient temperature exceeds the rated temperature of the resistor, its power bearing capacity may decrease. Therefore, in circuits operating in high-temperature environments, resistor pastes with higher rated power should be selected.

   • Solution: Choose chip resistor paste with better high temperature resistance, such as Yanbo brand YB5302.

2. Transient power:
   The transient power in the circuit may exceed the rated power of the resistor, which may be caused by pulse signals or abrupt signals.

   • Solution: Choose one with slightly higher power toleranceresistor pasteAnd set an appropriate safety factor.

3. Printing process:
   The quality of printing technology directly affects the uniformity and density of the resistive film, thereby affecting the power bearing capacity of the resistor.

   • Solution: Optimize the printing process to ensure the uniformity and density of the resistive film.

4、 Advantages of Advanced Institute (Shenzhen) Technology Co., Ltd

Advanced Institute Technology is committed to providing customers with high-quality precious metal slurry products and professional technical support, ensuring that customers achieve the best performance and results during use. The YB5302 chip resistor paste produced by it has the following advantages:

• Small temperature coefficient, suitable for a wide temperature range.
• Good printability and easy formation of uniform and dense resistive films.
• Good process stability ensures consistency in product performance.
• Excellent high temperature resistance, capable of long-term stable operation in high-temperature environments.

In summary, the evaluationChip resistor pasteThe power bearing capacity needs to comprehensively consider factors such as resistance value, rated power, ambient temperature, transient power, and printing process. By selecting appropriate resistor paste and optimizing process parameters, the long-term stable operation of electronic products can be ensured. The YB5302 chip resistor paste produced by Advanced Institute (Shenzhen) Technology Co., Ltd. has become the preferred material in the electronics industry due to its excellent performance and stability.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.