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In modern electronics where efficiency and accuracy are paramount, the 2512 0.47Ω (470m Ohm) 3W metal chip resistor serves as an engineering cornerstone. This high-power, high-precision component delivers reliable performance under demanding conditions with its ultra-low resistance value, substantial 3W power rating, and superior construction.
Technical Specifications
Parameter
Specification
Resistance Value
0.47Ω (470mΩ)
Tolerance
±1%
Power Rating
3W
Package Size
2512
Temperature Coefficient (TCR)
±50 ppm/°C
Resistance Material
Manganese Copper (KARMA) alloy
Operating Temperature
-55°C to +170°C
Key Features
2512 Package Size: 3.9mm * 2.0mm dimensions enable efficient heat dissipation for the 3W power rating
0.47Ω (470m Ohm): Ultra-low resistance minimizes voltage drop for accurate current measurement
5W Power Rating: Suitable for high-current paths in power supplies, motor drives, and battery systems
1% Tolerance: Ensures consistent and accurate current measurement across all units
Critical Role of Ultra-Low EMA (0.47m Ohm)
The 0.47Ω (470m Ohm) ESR minimizes power loss (P = I²R) and reduces heat generation with high currents. This efficiency makes it ideal for maximizing battery life in electric vehicles and improving power conversion systems.
Superior Material and Construction
Manganese-Copper (MnCu) alloy provides:
Low Temperature Coefficient of Resistance (TCR) for stable performance across temperature ranges
Excellent long-term stability against oxidation and degradation
Minimal thermoelectric EMF when connected to copper PCB traces
Enhanced Performance Features
Low Inductance Design: Optimized for high-frequency applications without signal distortion
High Surge Current Capability: Withstands transient overloads for rugged system performance
Application Areas
Automotive Electronics: EV battery packs, motor controllers, onboard chargers
Industrial Automation: PLC I/O modules, servo drives, power inverters
Telecommunications & Server Power Supplies: High-efficiency converters
Solar Inverters and Energy Storage Systems: Charge/discharge monitoring
Compliance and Environmental Responsibility
Fully compliant with RoHS and REACH regulations, constructed with lead-free materials to meet global environmental standards.
Conclusion
The 2512 0.47Ω (470m Ohm) 3W metal shunt chip resistor combines ultra-low resistance with robust power dissipation, 1% tolerance, and exceptional stability. Its low inductance and high surge resilience make it ideal for demanding current sensing applications in automotive, industrial, and renewable energy sectors.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Distributor/Wholesaler,Manufacturer,Agent,Trading Company
