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SHEN ZHEN SHUNHAI TECHNOLOGY .,LTD 高级会员

3920 0.004R(4m Ohm) 4W 1% ESR39F4WR004F02G Metal Shunt Chip Resistor

2026-05-14 Source:SHEN ZHEN SHUNHAI TECHNOLOGY .,LTD

The 3920 0.004R(4m Ohm) 4W 1% ESR39F4WR004F02G Metal Shunt Chip Resistor stands out as a high-performance metal shunt chip resistor, offering exceptional electrical performance, stringent environmental compliance, and superior reliability, ideal for industrial control, new energy vehicles, power modules, and more.

【3920 0.004R(4m Ohm) 4W 1% ESR39F4WR004F02G Metal Shunt Chip Resistor: High-Precision and Reliable Core Component for Power Electronics】

In power electronic systems, shunt resistors are critical components ensuring current sensing and system stability. The 3920 0.004R(4m Ohm) 4W 1% ESR39F4WR004F02G Metal Shunt Chip Resistor stands out as a high-performance metal shunt chip resistor, offering exceptional electrical performance, stringent environmental compliance, and superior reliability, ideal for industrial control, new energy vehicles, power modules, and more.

Core Specifications and Technical Advantages:

1. High Precision and Stability:

  • Accurate resistance of 0.004R (4m Ohm) with ±1% precision, ensuring high-accuracy current sensing.
  • Fabricated from FaCrAl (Ferritic Chromium Aluminum Alloy), featuring ultra-low temperature coefficient (low drift), maintaining stable resistance across wide temperature ranges for extreme conditions.

2. High Power and Surge Resistance:

  • Rated power of 4W enables withstand of high-power current surges, ensuring long-term operational safety and reliability.
  • Superior surge protection design effectively withstands transient high-current spikes, preventing overload damage and extending lifespan.

3. Low ESR (Equivalent Series Resistance):

  • Model designation "ESR39F4WR004F02G" indicates its low ESR characteristic, minimizing parasitic resistance effects on sensing circuits and enhancing signal transmission efficiency.

4. Environmental Compliance and Reliability:

  • Full compliance with RoHS, REACH, and lead-free environmental standards, aligning with global green manufacturing requirements.
  • Rigorous quality testing ensures high corrosion resistance and mechanical strength, suitable for harsh industrial environments.

Application Scenarios:

  • New Energy Vehicles and Charging Stations: Enables precise current monitoring in Battery Management Systems (BMS) for safe and efficient energy management.
  • Industrial Automation: Powers current sensing in high-power equipment drives (inverters, servos) for real-time control and diagnostics.
  • Power Modules and Inverters: Facilitates current feedback in DC/DC converters, optimizing power conversion efficiency and stability.
  • Communication Infrastructure: Protects current circuits in server power supplies and telecom base stations, ensuring reliability under high loads.

Key Selection Benefits:

1. Superior Performance Integration:

  • Combines high-precision, high power, and low ESR, balancing performance and cost for advanced applications.

2. Harsh Environment Resilience:

  • Low drift and surge resistance excel in industrial and automotive scenarios.

3. Green Compliance:

  • Environmental certifications streamline global market access and regulatory approvals.

The 3920 0.004R(4m Ohm) 4W 1% ESR39F4WR004F02G Metal Shunt Chip Resistor empowers power electronic systems with robust current sensing, driving technological advancements in industry and renewable energy.

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