0603 Current Sensing Chip Resistor 0.5W 20m Ohm Resistor For High Precision Current Measurement
Specifications
Features:
High Precision, High Power, Low Temperature Ticket, Low Inductance
Name:
Current Sensing Chip Resistor
Manufacturer:
Walter
Series:
STE
Size:
0603
Resistance Range:
20mΩ(0.02 Ohm)
Tolerance:
±1%
Power Rating:
0.5W
Operating Temperature Range:
-55°C To +125°C
Temperature Coefficient:
±50 Ppm/°C
Material:
MnCu
Per Reel:
5000
Applications:
Current Sensing, Power Supply, Motor Control, Battery Management, Frequency Converter, 5G Base Station, LED Lighting,
Highlight:
0603 Current Sensing Chip Resistor
,Current Sensing Chip Resistor 0.5W
,0.5W 20m Ohm Resistor
Introduction
0603 Size 0.02Ω 0.5W Current Sensing Resistor for High Precision Current Measurement
In modern electronics, precise current measurement is essential for efficiency, safety, and control. The STE0603MW50R020F current sensing resistor plays a critical role in these measurement systems, offering exceptional performance in a compact package.
Introduction to Current Sensing and the 0603 Footprint
Current sensing is fundamental for battery management, motor control, over-current protection, and power monitoring in devices from smartphones to industrial machinery. The 0603 0.02Ω resistor provides precise current measurement through voltage drop across its known resistance (Ohm's Law, V=IR).
The "0603" designation refers to its compact surface-mount footprint (1.6mm x 0.8mm), ideal for high-density PCBs while maintaining a robust 0.5W power handling capability.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | STE0603MW50R020F |
| Resistance Value | 0.02Ω (20mΩ) |
| Tolerance | ±1% |
| Power Rating | 0.5W |
| Package Size | 0603 (1.6mm * 0.8mm) |
| Temperature Coefficient (TCR) | ±50 ppm/°C |
| Resistance Material | Manganese Copper (MnCu) alloy |
| Operating Temperature | -55°C to +125°C |
Key Performance Features
- Ultra-Low Resistance (0.02Ω): Minimizes voltage drop and power loss in circuits while maintaining measurable signal levels.
- High Power Rating (0.5W): Exceptional power handling for an 0603 package, capable of withstanding current surges up to 5A.
- Precision Tolerance (1%): Ensures accurate and consistent current measurements for reliable system performance.
Material Advantages: Manganin-Copper (MnCu) Alloy
The MnCu alloy resistive element provides critical benefits:
- Exceptional temperature stability (±50 ppm/°C TCR)
- Low electromagnetic interference (optimized low-inductance design)
- Long-term stability and resistance to oxidation
Application Scenarios
The STE0603MW50R020F is ideal for:
- Power management systems (VRMs, DC-DC converters, PSUs)
- Battery management systems (EVs, laptops, power tools)
- Motor control circuits (drones, robotics, automotive)
- Audio amplifier protection circuits
Compliant with RoHS and REACH regulations, lead-free, and suitable for eco-friendly electronic manufacturing.
Conclusion
The STE0603MW50R020F current sensing resistor combines high-power handling, precision accuracy, and thermal stability in a compact 0603 package. Its MnCu alloy construction ensures reliable performance for critical current measurement applications across various industries.
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Stock:
MOQ:
5000
