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OAR Current Sense Resistor

Product catalog summary

Overview: The document provides technical specifications and details for OAR Current Sense Resistors manufactured by Shenzhen KHX Electronics Co., Ltd. These resistors are designed for applications requiring low inductance and high precision in current sensing and feedback.

Features: The resistors feature welded construction, flameproof design, and inductance less than 10 nanohenries. They have solderable copper leads and are compliant with IEC 60115-1 standards.

Construction: The resistors consist of tin-plated copper leads, a weld point, a resistive element, and a stand-off. Dimensions vary based on the type, with specific measurements provided for types OAR-1, OAR-3, and OAR-5.

Ordering Information: The resistors are categorized by series name (OAR), power rating (1W, 3W, 5W), resistance tolerance (±1% to ±10%), resistance value (e.g., R10=0.01Ω), and temperature coefficient of resistance (TCR) of ±20ppm/°C.

Applications: These resistors are suitable for current sensing, feedback, low inductance, and surge and pulse applications.

Performance Characteristics: The resistors have a power rating at 85°C, with full power dissipation at this temperature and linear derating to zero at +325°C. They are not insulated and have a temperature range of -55°C to +325°C. The document provides detailed performance requirements for various tests, including short-time overload, temperature coefficient of resistance, damp heat, endurance, and resistance to soldering heat.

Derating Curve: A graph illustrates the power rating percentage against ambient temperature, showing a linear decrease from 100% at 85°C to 0% at 325°C.

Catalog excerpts

% Features - Welded Construction - Flameproof - Inductance Less Than 10 Nanohenres - Solderable Copper Leads % Applications - Current Sensing - Feedback - Low Inductance - Surge And Pulse Series Name Power Resistance Resistance ( ) Rating Tolerance Value TCR

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0 Applications And Ratings 0 Derating Curve

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