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Generally speaking, it is nothing more than cost. In terms of size or weight, smd resistor are about 1/10 less than plug-in resistor.
The senior engineer should be close to a nominal value of the calculated value in the application circuit when selecting the SMD resistor value, which should be given priority
As a user of smd resistor, when you need a 50kΩ smd resistor during the design and production of the circuit, please consider whether you really need to deliberately seek a resistor of exactly 50kΩ. Because it is difficult to buy 50kΩ resis
SMD resistors are also business card type fixed resistors, which are one of the metal glass glaze resistors. It is a resistor made by mixing metal powder and glass glaze powder and printing on the substrate by screen printing. It is resista
Volume: 0402, 0603, 0805, 1206, 2010, 2512 Resistance: 1mΩ, 2mΩ, 5mΩ, 7mΩ, 10mΩ, 12mΩ, 15mΩ, 20mΩ, 50mΩ... Power: 1/16W, 1/8W, 1/4W, 1/2W, 3/4W, 1W Accuracy: ±0.5%, ±1%, ±2%, ±5% Temperature coefficient: ±50ppm/℃, 75ppm/℃, 100pp
SMD resistor may also have many other needs in the future. For example, we know that new energy is now being promoted, and the biggest concept of new energy is electric energy.
Detailed description of precision SMD resistor Series: 1206 Resistance: 0R—500M 0Ω—22MΩ full range Power: 1 / 20W—1W Deviation: D = ±0.5%, B = ±0.1%
There are two ways to indicate the resistance on the resistor: direct marking method and color ring method
If the resistor is broken, it can't be connected directly. The resistor will reduce the voltage. If it is connected directly, the resistor circuit will not work normally, and the circuit may be burnt in serious cases.
A good precision resistor must have the characteristics of small aging, small temperature drift, and small deviation. At the same time, it must have high reliability, large power margin, small temperature rise, low noise, small series induc