2512 0.002Ω (2m Ohm) 6W Metal Shunt Chip Resistor: A Benchmark in HighPrecision, HighPower Current Sensing
In the demanding landscape of modern electronics, where efficiency and accuracy are paramount, the role of the current sense resistor is critical. Among the plethora of options available, the 2512 0.002Ω (2m Ohm) 6W metal shunt chip resistor stands out as a superior solution for highcurrent applications. This component, part of a series designed for precision and robustness, represents a perfect synergy of advanced materials, innovative engineering, and stringent manufacturing standards. Designed to meet the rigorous requirements of industrial, automotive, and power management systems, this resistor is more than just a passive component; it is a vital contributor to system reliability and performance.
This specific model, often identified by codes such as ESR25F6WR002K04G, is engineered with a focus on ultralow resistance values and high powerhandling capabilities. The 2512 0.002Ω (2m Ohm) 6W rating immediately signals its purpose: to accurately measure current in circuits where even a small voltage drop is significant, and where substantial power dissipation is expected. The 2512 package size (6.4mm x 3.2mm) provides the necessary surface area to effectively manage thermal performance, ensuring stable operation at its full 6W power rating.
Model Specifications (ESR25F6WR002K04G)
| Parameter |
Specification |
| Resistance Value |
0.002Ω (2mΩ) |
| Tolerance |
±1% |
| Power Rating |
5W |
| Package Size |
2512 (6.35mm * 3.15mm) |
| Temperature Coefficient (TCR) |
±50 ppm/°C |
| Resistance Material |
Manganese Copper (Karma) alloy |
| Operating Temperature |
-55°C to +175°C |
Unpacking the Core Specifications and Benefits
The exceptional performance of this 2512 0.002Ω (2m Ohm) 6W resistor is rooted in its fundamental characteristics:
1. UltraLow Resistance and High Power Rating:
The core feature of this component is its 0.002Ω (2m Ohm) resistance value. This incredibly low resistance is crucial for minimizing power loss (I²R loss) and the associated voltage drop in highcurrent paths. When paired with a substantial 6W power rating, it allows designers to place the resistor directly in the main current flow of powerful systems—such as motor drives, power supplies, and battery management systems (BMS)—without becoming a bottleneck or a significant source of inefficiency. The robust 2512 0.002Ω (2m Ohm) 6W design ensures that it can handle transient overloads and continuous high current without failure.
2. Superior Karma™ Alloy and Low TCR:
The resistive element is constructed from a specialized Karma alloy (a NickelChromiumAluminumFe alloy). This material is chosen for its excellent longterm stability and very low Temperature Coefficient of Resistance (TCR). The 1% tolerance ensures initial accuracy, but the Karma alloy guarantees that this accuracy is maintained over a wide operating temperature range. This means the resistance value of the 2512 0.002Ω (2m Ohm) 6W resistor remains stable, providing reliable and consistent current measurements regardless of environmental thermal fluctuations.
3. Extremely Low ESR and Parasitic Inductance:
In highfrequency switching applications, such as in DCDC converters or inverter systems, the parasitic elements of a resistor can severely impact performance. This metal shunt resistor is specifically designed with a lowinductance structure. Its low Equivalent Series Resistance (ESR) and minimal parasitic inductance ensure that the voltage drop across it is a true representation of the resistive component, not distorted by reactive elements. This results in cleaner signal acquisition and more accurate realtime current monitoring and control.
4. Exceptional Surge Withstanding Capability:
A key differentiator for this 2512 0.002Ω (2m Ohm) 6W resistor is its high resistance to current surges. The solid metal element and robust construction can withstand shortduration, highenergy pulses that would destroy lesser components. This makes it an ideal choice for applications like inrush current limiting, circuit breaker feedback systems, and any environment where unpredictable load dumps or startup surges may occur. Its ruggedness directly translates to increased systemlevel reliability and longevity.
5. Full Compliance with Environmental Directives:
Aligning with global sustainability goals, this product is fully compliant with RoHS (Restriction of Hazardous Substances), REACH, and is constructed with leadfree (Pbfree) terminations and materials. This ensures that the 2512 0.002Ω (2m Ohm) 6W resistor can be used in products destined for any market without regulatory concerns, supporting the creation of greener electronic products.
Target Applications
The unique combination of features makes the 2512 0.002Ω (2m Ohm) 6W metal shunt resistor indispensable in a wide array of highperformance fields:
Automotive Electronics: For current monitoring in electric power steering (EPS), electronic braking systems, and main battery current sensing in electric and hybrid vehicles (EV/HEV).
Power Management Systems: In server power supplies, telecom rectifiers, and industrial UPS systems for precise load current monitoring and protection.
Motor Drives and Control: For phase current sensing in industrial AC drives, robotics, and HVAC compressor controls.
Battery Management Systems (BMS): Critical for accurately measuring charge and discharge currents in large battery packs, ensuring safety and optimizing battery life.
Solar Inverters and Renewable Energy: Used for DClink current sensing, contributing to higher conversion efficiency.
Conclusion
The 2512 0.002Ω (2m Ohm) 6W metal shunt chip resistor is a meticulously engineered component that sets a high standard for precision current sensing. Its ability to combine an ultralow resistance value of 0.002Ω with a high 6W power dissipation, all while maintaining excellent stability, low inductance, and superior surge resistance, makes it a trusted choice for design engineers worldwide. By selecting this resistor, developers are not just choosing a component; they are investing in system accuracy, durability, and overall performance, ensuring their products operate at peak efficiency under the most challenging conditions. For any project demanding reliable highcurrent measurement, the 2512 0.002Ω (2m Ohm) 6W resistor is an optimal and futureproof solution.
Product Tags:
|
|
2512 Size 0.002Ω (2m Ohm) 6W Metal Shunt Chip Resistor for High Power Current Sensing Images
|
