ESR39F7W1M50F02G Metal Shunt Chip Resistor 3920 Chip Packaging 0.0015R (1.5m Ohm) 7W High Power Precision Low Resistance Component
In the fields of high-power circuits such as new energy electronic control, industrial power supply, and intelligent industrial control, precision low resistance shunt resistors are the core components for current sampling and circuit protection. ESR39F7W1M50F02G metal shunt surface mount resistor, with its core parameter configuration of 3920 0.0015R (1.5m Ohm) 7W, has become a high-quality choice for low resistance, high-power, and high-precision resistors. This 3920 0.0015R (1.5m Ohm) 7W metal shunt chip resistor adopts standardized 3920 chip packaging size, with precise resistance control at 0.0015 Ω (1.5m Ω), rated power up to 7W, and precision error strictly controlled within ± 1%. It is suitable for various high current precision sampling circuits and is an indispensable shunt detection component in industrial electronic equipment.
This 3920 0.0015R (1.5m Ohm) 7W resistor strictly follows environmental production standards and fully complies with the dual international environmental regulations of RoHS and REACH. The entire process adopts lead-free production technology, which does not contain heavy metals or harmful chemicals, is pollution-free and recyclable, and is suitable for global electronic product environmental certification requirements. It can be widely used in various scenarios such as export electronic equipment, civilian household appliances, industrial control equipment, etc., to avoid environmental compliance risks.
The material determines the core performance of the resistor. The 3920 0.0015R (1.5m Ohm) 7W metal shunt chip resistor is made of high-quality FaCrAl iron chromium aluminum alloy material, which is a specialized high-performance alloy material for industrial grade low resistance resistors. FaCrAl material has the characteristics of stable resistivity, high temperature resistance, corrosion resistance, and oxidation resistance. Compared with ordinary resistance alloys, this material has a lower coefficient of thermal expansion and can maintain a constant resistance value in high and low temperature alternating environments, ensuring the basic stability of resistance from the raw material level.
At the process level, the 3920 0.0015R (1.5m Ohm) 7W metal shunt surface mount resistor adopts an integrated metal stamping process, combined with precision electron beam welding technology. The electrode is tightly integrated with the resistor body, and the structure is stable and not easy to fall off. The surface of the product is treated with an insulation protective coating, which is moisture-proof, dust-proof, and resistant to mechanical wear. The surface mount packaging is compatible with SMT automated mounting technology, meeting the intensive production needs of modern circuit boards. It is easy to install and has strong adaptability. Simultaneously optimizing the heat dissipation structure, the 3920 large-sized package is equipped with a 7W high-power carrying capacity, which enables fast heat conduction and effectively reduces the working temperature rise.
-
Low temperature drift, extremely stable resistance value
This 3920 0.0015R (1.5m Ohm) 7W shunt resistor has excellent low-temperature drift characteristics, with a temperature coefficient controlled within a very small range. Within a wide temperature range of -40 ℃~+170 ℃, there will be no resistance deviation due to environmental temperature changes or equipment operation heating. Under long-term continuous power on operation, the resistance fluctuation is weak, ensuring continuous and accurate current sampling data, and perfectly adapting to electronic control systems with strict detection accuracy requirements.
-
High precision, controllable error ± 1%
With precise production calibration processes, the 3920 0.0015R (1.5m Ohm) 7W resistor achieves an accuracy of ± 1%, which is considered a high-precision level among milliohm level low resistance components. The extremely small resistance error can accurately capture small current changes in the circuit, providing precise voltage sampling signals for the motherboard control chip, realizing real-time monitoring of circuit current, overload warning, and improving equipment operation safety and controllability.
-
Strong surge resistance and impact bearing capacity
To address the issues of sudden current pulses and voltage surges in industrial circuits, the 3920 0.0015R (1.5m Ohm) 7W metal shunt chip resistor optimizes its internal alloy structure and enhances its impact resistance performance. It can withstand the impact of instantaneous large current, avoid electrical resistance breakdown damage caused by startup pulse and circuit fluctuation, and has excellent anti fatigue and anti-aging performance. It is suitable for high-power circuits under complex working conditions to extend the service life of equipment.
-
High power, excellent heat dissipation performance
Relying on the increased packaging size of 3920 and the thermal conductivity advantage of FaCrAl alloy, the rated power of 3920 0.0015R (1.5m Ohm) 7W resistor can stably reach 7W, which can withstand high current loads for a long time. During the operation of the circuit, heat is rapidly dissipated without the accumulation of heat or local overheating, effectively avoiding resistance aging and circuit faults caused by high temperatures, and adapting to industrial equipment that works continuously for a long time.
With its high-quality performance of 3920 0.0015R (1.5m Ohm) 7W, this metal shunt chip resistor has a wide range of application scenarios. In the field of new energy, it can be used for lithium battery protection boards and charging pile current detection modules; Adapt to frequency converters, servo drives, and high-power switching power supplies in the industrial field; In the field of civilian electronics, it can be applied to intelligent inverters, home appliance electronic control motherboards, and vehicle electronic control systems. Whether it is a normal temperature civilian environment or a harsh industrial environment with high temperature, vibration, and electromagnetic interference, this resistor can operate stably, completing core functions such as current sampling, circuit current limiting, and overload protection.
Overall, the ESR39F7W1M50F02G metal shunt chip resistor has 3920 0.0015R (1.5m Ohm) 7W as its core parameter, combined with high-quality FaCrAl alloy material, integrating multiple advantages such as low temperature drift, high precision, surge resistance, high heat dissipation, and environmental compliance. Standardized surface mount packaging is suitable for automated production, with stable electrical performance that meets the needs of high-power precision circuits, and combines cost-effectiveness and durability. In the trend of high-precision, high-power, and environmentally friendly development in the electronics industry, this 3920 0.0015R (1.5m Ohm) 7W metal shunt surface mount resistor will continue to become the core shunt sampling component in industrial electronic control and new energy electronics fields, safeguarding the stable operation of various electronic devices.
