Photojie low temperature drift resistance refers to the resistance whose resistance value changes little with temperature. The temperature drift of resistance is the temperature coefficient, expressed in TCR, in PPM / ℃. Generally speaking, the resistance requiring low-temperature drift is usually related to the category of precision resistance and high-precision resistance.
When selecting a product, you can select it according to your needs. If you really need ultra-high precision and super standard resistance value, you can choose high precision. If 1% resistance is already available, choosing 0.01% resistance will be much more expensive.
In addition, with regard to the temperature coefficient TCR, the temperature coefficient, that is, the temperature drift, is a value indicating that the resistance value changes with temperature. Common temperature coefficients of precision resistors are: jepsun: 50ppm / ℃, 25ppm / ℃, 15ppm / ℃, 10ppm / ℃, 5ppm / ℃, etc. Similarly, you can choose according to your needs. The lower the temperature drift, the smaller the resistance change, the more accurate the resistance and the more expensive the price!
In instrument and weighing instrument products, the combination of resistance accuracy and temperature coefficient is often encountered. In some places, high precision is required, and the resistance value cannot change too much. In other places, only low-temperature drift resistance is required, and the accuracy does not need to be too high, because other components can be adjusted. At this point, we can weigh the two.
Low temperature drift resistance can be divided into patch low temperature drift resistance and plug-in low temperature drift resistance. The chip type is mainly thin film resistor, and the plug-in type includes metal thin film resistor and molded resistor.
Taiwan Guangjie small temperature drift can reach 2ppm, which can make complete resistance size. The delivery time is about 4 weeks, which can replace other low-temperature drift resistors abroad
Scheme recommendation: Guangjie precision resistor
