The so-called precision resistor mainly refers to a resistor with high precision in resistance value and low temperature coefficient, which has high long-term reliability and is widely used in measuring equipment. Therefore, the materials required for producing such high-precision resistors are also very special and the production process is strict. The following will explain the commonly used materials for precision resistors: metal film, metal wire, metal thin, etc.
There are still many differences between high-precision resistors and precision resistors. There are mainly the following points: 1. Differences in accuracy. 2. Differences between temperature drifts. 3. Differences in long-term stability. Differences in production processes, etc.
Although high-precision resistors and precision resistors overlap in definition and characteristics, there are still some significant differences between them. Firstly, the resistance accuracy of high-precision precision resistors is higher, usually reaching ± 0.1% or lower, while the accuracy of precision resistors is usually between ± 1% and ± 0.1%. This means that high-precision resistors have more advantages in situations where extremely high precision is required.
Fenghua (FH) Metal Film Precision Resistor TM Series Product Selection Parameters Introduction. Fenghua (FH) Jing Digital Analog Precision Resistor is a cylindrical wound wire resistor also known as a metal film wafer resistor. The product has extremely high product stability and is widely used in instruments, medical devices, and testing and measuring equipment. This article provides a detailed introduction to the selection parameters of the Fenghua (FH) metal film precision resistor TM series products.
This article provides a detailed introduction to the product characteristics of the Fenghua (FH) automotive thin film precision resistance AT series. The Fenghua AT series thin film automotive resistor is a resistor that meets the AEC-Q200 automotive industry certification. It has an ultra-low temperature coefficient and ultra-high precision resistance value, and has anti vulcanization characteristics. It uses special passivation materials, which have high temperature resistance, corrosion resistance, and high reliability. Fenghua thin film automotive resistance is also a type of high-precision thin film SMT resistance.
The Nanjing Sart alloy film precision resistor SMD series belongs to the metal foil process technology, also known as alloy resistors. It has product characteristics such as high current, low temperature drift, high reliability, and low inductance, and is widely used in current sampling circuits. Therefore, it is also known as current sampling resistors. Sate SMD series alloy film precision resistance products have a wide range of selectivity, volume range (0603~4320), resistance range (2m Ω~700m Ω), and power range (0.5W~5W). This article will provide a detailed introduction to the main product selection parameters and product characteristics of Sart alloy film precision resistors.
The main core parameters of precision resistors include volume, resistance, accuracy, power, temperature drift, voltage, and temperature, which are key parameters. Each parameter will have certain changes in different environments, so even the resistance of the same parameter will have different changes in different applications. We can provide examples of precision resistors below.
We all know that precision resistors are mainly high-precision thin film mount resistors. In fact, thick films can also be used for high-precision resistors, and they have higher voltage resistance than thin film precision resistors. Their temperature coefficient can also reach (± 50ppm/℃), which has higher product cost-effectiveness. This article provides a detailed introduction to the main selection parameters and characteristics of the high-precision thick film SMT resistors of the Yageo brand.
Yageo is one of the world's largest resistance brand manufacturers. Yageo's high-precision thin film chip resistors adopt advanced sputtering technology, providing high precision, high stability, narrow tolerance of ± 0.1%, and low TCR of ± 25ppm/℃. The minimum size is 0402, and the minimum TCR is ± 5ppm/℃. Guoju thin film precision resistors are divided into: ordinary thin film precision resistors, automotive standard thin film precision resistors, and precision resistance series such as anti vulcanization and high voltage resistance.
The CSR series of Viking metal film precision resistors is a type of SMT wire wound resistor, also known as wafer resistors, with two main volumes: 0204 (3.5 * 1.4) and 0207 (5.9 * 2.2). MELF metal film precision resistor, size 0204/0207. The precision tolerance is 0.1%, TC5/10/15/25/50/100ppm. MELF is a cylindrical, lead-free surface resistor with metal electrodes.