5W Current Shunt Resistor 0.003 Ohm Precision Shunt Resistor Low ESR For Current Sensing And Power Management
Price:
Negotiable
MOQ:
2000
Delivery Time:
3-5 work days
Brand:
Ellon
Product Description
3920 Size 0.003Ω 5W 1% Metal Shunt Chip Resistor for Current Sensing and Power Management
In modern electronics where efficiency and accuracy are critical, current sensing plays a fundamental role in power management, battery monitoring, motor control, and over-current protection. The 3920 0.003Ω 5W metal shunt chip resistor (models like ESR39F5WR003F02G) represents engineering excellence, combining ultra-low resistance with high power handling in a robust surface-mount package.
Technical Specifications
| Parameter | Specification |
|---|---|
| Resistance Value | 0.003Ω (3mΩ) |
| Tolerance | ±1% |
| Power Rating | 5W |
| Package Size | 3920 (6.35mm * 3.15mm) |
| Temperature Coefficient (TCR) | ±50 ppm/°C |
| Resistance Material | Manganese Copper (FeCrAl) alloy |
| Operating Temperature | -55°C to +175°C |
Key Features
- 3920 Package Size: 10.0mm x 5.0mm chip provides ample surface area for heat dissipation
- 0.003Ω Resistance: Ultra-low value minimizes voltage drop in current paths (30mV drop at 10A)
- 5W Power Rating: Handles significant power conversion to heat without thermal damage
- 1% Tolerance: High precision (±0.00003Ω) for accurate current measurement
- FeCrAl Alloy: Excellent stability, low TCR, and high-temperature oxidation resistance
Performance Benefits
- High precision and stability across wide temperature ranges
- Exceptional surge withstanding capability for pulse overloads
- Low ESR for accurate high-frequency current sensing
- RoHS and REACH compliant with lead-free construction
Primary Applications
Automotive Electronics (BMS, EPS, ECUs)
Industrial Automation (Motor Drives, Inverters)
Telecommunications (Server Power Supplies)
Power Supplies (SMPS, UPS Systems)
Consumer Electronics (Audio Amplifiers)
The 3920 0.003Ω 5W metal shunt chip resistor is a highly engineered solution for accurate high-current measurement in space-constrained environments. Its FeCrAl substrate, 5W rating in a 3920 package, and precise 0.003Ω value make it indispensable for efficient, accurate, and reliable system design.
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Company
Shenzhen Shun Hai Technology Co., Ltd.
Location
Floor 7, Block B, Building 9, Baoneng Science and Technology Park, Qingxiang Road, Longhua New District, Shenzhen
Contact Person
jimmy