According to LCSC supplier C&B Electronics, the PZFR series of its RESI Resistor brand, based on the new generation Z1 foil resistor technology, can achieve temperature drift approaching zero and an accuracy of ±0.01%.
Precision Resistors Introduction
High stability and precision are the main characteristics that distinguish precision resistors from general resistors, mainly represented by parameters such as temperature drift (TCR), accuracy, and load life. Only those with an accuracy of 0.1% or higher, a temperature drift of less than 10 ppm/℃, and a load life of less than 100 ppm over 1000 hours can be called precision resistors. That is, the resistor has high precision, the resistance value changes very little with the environmental temperature, and the resistance value changes little after long-term load work.
Currently, the mainstream resistor technologies include precision thick-film, precision thin-film, precision metal film, precision wire-wound, and precision foil resistors. Among them, thin-film resistors and foil resistors are the mainstream in the field of precision resistors, and the foil resistor, invented in 1962, represents the most precise resistor technology to date.
About Manufacturer RESI
C&B Electronics, established in 2006 and headquartered in Shenzhen, is a national high-tech enterprise, a Class AA credit enterprise of the China Electronics Association, and a member of the IEC60477 working maintenance group. It has a research and development and production base in Changsha, owns the independent brand RESI Resistor, and has passed the IATF16949 certification. With advanced equipment and an excellent research team, RESI has the capability to develop and manufacture a new generation of resistors. RESI strives to providing customers with high-performance, reasonably priced, and stable delivery high-end resistor products; RESI Electronics has been targeting the high-end resistor market since its establishment and has gradually grown into a leading enterprise in high-end domestic resistors with a complete industrial chain.
RESI’s current product line mainly covers high-precision resistors, shunt resistors, high-voltage resistors, high-energy resistors, high-power resistors, ignition resistors, etc. They are widely used in fields such as industrial automation, aerospace, power, rail transit, automotive, medical equipment, new energy, charging piles, 5G communications, the Internet of Things, and artificial intelligence.
RESI has the strength in raw material processing, large-scale product manufacturing, and testing and verification, owns a full set of resistor process treatment equipment, and ensures the consistency and high quality of product production standards to the greatest extent. RESI also has a relatively mature system in the research and development, production, and customized application of special resistors, and has the ability to provide global customers with overall support, one-stop procurement, and customized solutions.
Recommended Products
| Series | Resistance Value | Highest Accuracy | Lowest Temperature Drift | Application Scenarios | Description |
| PTFR (Precision Thin-Film Chip Resistor) | 10Ω-10MΩ | ±0.01% | ±5 ppm | Precision instruments, medical, automotive, railways, power, etc. | This product features an enhanced protective coating, strong moisture resistance, excellent long-term stability, and temperature drift characteristics. |
| ARCS (Manganese-copper Alloy Shunt)） | 100μΩ | ±0.1% | 20 ppm | Battery management systems, power equipment, industrial control equipment | This series is a manganese-copper alloy shunt with characteristics of low thermoelectric potential and low inductance, electron beam welding process. The voltage signal output point structure is rich. |
| AECR (Automotive Grade Thick-film Resistor) | 10Ω-10MΩ | ±0.1% | 100 ppm | Automotive water pumps, oil pumps, motor control | This resistor complies with the AEC-Q200 automotive standard, has stable electrical performance, high reliability, high mechanical strength, and superior high-frequency characteristics. |
| EBWS (Precision Chip Current Sampling Resistor) | 0.2mΩ-5mΩ | ±1% | 100 ppm | Power, precision measurement, current sampling | The EBWS series is a chip current sampling resistor with a resistance range of 0.2mΩ – 5mΩ, high precision, small size; low inductance, high-temperature resistance, suitable for feedback circuits, large current pulse circuits, etc. |
