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OAR1R005FLF

OAR1R005FLF

BI Technologies / TT Electronics
Current Sense Resistors - Through Hole .005 OHM 1% 1W
32 in stock
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Overview

The OAR1R005FLF is a 5 mOhm, 1W through-hole current sense resistor designed for precision current monitoring in space-constrained layouts. It utilizes a metal element construction with a unique 'open air' design that facilitates efficient heat dissipation and maintains stability across its -40C to 125C operating range. This 1% tolerance resistor is flameproof and engineered to withstand high pulse currents common in power electronics.

Why Choose This Part

The open-air radial design minimizes PCB heating by elevating the resistive element above the board surface. Its metal element composition provides a low 180 ppm/C temperature coefficient and high pulse-handling capability compared to standard thick-film resistors. The small footprint and 5 mOhm resistance allow for minimal voltage drop while maintaining high accuracy for power monitoring.

Applications

Switch-Mode Power Supplies (SMPS)
Used as a low-side shunt for feedback loops to monitor and regulate output current.
Battery Management Systems
Measures charge and discharge currents in portable power tools and small industrial battery packs.
Motor Overcurrent Protection
Detects stall conditions or short circuits in DC motor driver stages by monitoring phase current.
DC-DC Converters
Acts as a sensing element for current-mode control schemes in point-of-load regulators.

Key Specifications

Features Current Sense, Flame Proof, Pulse Withstanding, Safety
Tolerance +/-1%
Resistance 5 mOhms
Composition Metal Element
Power (Watts) 1W
Package / Case Radial
Size / Dimension 0.450" L x 0.065" W (11.43mm x 1.65mm)
Height - Seated (Max) 0.320" (8.12mm)
Operating Temperature -40degC ~ 125degC
Number of Terminations 2
Temperature Coefficient +/-20ppm/degC

Categories

Sensors > Current & Voltage Sensors Analog ICs