Components also come to an industrial grade?

More and more customers will ask, if your quality is good or bad, industrial grades do not meet the requirements? For this we have a deeper look at what is an industrial grade:

Military-grade device operating temperature: -55 °C ~ +150 °C Industrial-grade device operating temperature: -40 °C ~ +85 °C Commercial-grade device operating temperature: 0 °C ~ +70 °C Some devices have an automotive industry-grade It is -40°C~+125°C. The computers and mobile phones currently on the market are basically commercial grades. They may say that Microsoft's chips are military grades in the commercial class. Their main difference is their operating temperature range.

How to select relevant: passive components such as TVS, SMD transistor, transistor, and MOS transistor. Then we use LED lights to give a series connection to give an example: the premise: (red, yellow, yellow-green, orange is generally 1.8v-2.4v, white, blue, green generally 3.0v-3.6v. If are 20mA. ) There are maximum/minimum/typical three values ​​in the general specification. However, if the rated current is the same, constant current series can be used. Due to consistency, it may not be as bright. Practice: A red light and a white light ratio, such as the red light voltage is 2.0v, the white light voltage is 3.3v, this yellow light at 2.0v voltage and this white light at 3.3v voltage The current flowing through them is the same, both are 20mA, where Vf and If are not directly proportional. Low pressure can often reach the maximum power. Conclusion: As a result, the heating of the parts at the maximum power is also relatively high. According to R=(Vcc-Vf)/If in the circuit, if the heat dissipation volume is the same, the larger the resistance is, the higher the part heat is. Therefore, the selection of low Vf components effectively reduces power waste and also ensures the overall component heating.