LR2512-R05F Specifications
Manufacturer: IRC
Part Number: LR2512-R05F
Product Type: Current Sense Resistor
Resistance: 0.05 Ohm
Resistance Tolerance: ±1%
Power Rating: 1 W
Temperature Coefficient: ±100 ppm/°C
Package Size: 2512 SMD
Mounting Type: Surface Mount
Resistor Technology: Thick Film
Termination Style: Wraparound SMD Termination
Operating Temperature Range: -55°C to +155°C
RoHS Status: RoHS Compliant
Packaging: Factory
Key Features
The LR2512-R05F is a precision current sense resistor designed for surface mount power monitoring applications. It uses thick film resistor technology and a 2512 package size to support reliable 1 watt power dissipation. The low resistance value of 0.05 ohm allows accurate current measurement while minimizing voltage drop within the circuit. Additionally, the ±1% tolerance supports stable measurement accuracy for control and protection circuits. Because the resistor uses wraparound terminations, it provides strong solder connections during automated assembly. As a result, the component performs reliably in power management and monitoring systems.
Applications
DC-DC converter current monitoring
Battery management systems
Power supply protection circuits
Motor control current sensing
Industrial power monitoring equipment
LED driver current measurement
Embedded power distribution systems
Switching regulator feedback circuits
Product Overview
The LR2512-R05F resistor from IRC provides a compact solution for precision current sensing in power electronics. First, the 2512 surface mount package supports higher power handling compared to smaller resistor sizes. Furthermore, the low resistance value minimizes power loss while enabling accurate current measurement across the resistor.
Because current sense resistors operate directly in the power path, stability and thermal performance are important design factors. The thick film construction supports reliable performance across a wide operating temperature range. In addition, the ±1% resistance tolerance provides dependable measurement accuracy for monitoring and protection circuitry.
Therefore, designers frequently use resistors in this class within switching power supplies, battery monitoring systems, and motor drive electronics. Overall, the LR2512-R05F offers dependable performance for modern power control and monitoring applications.
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