CRE2512 CRE2512 Metal Foil, Metal Strip Chip Resistors & EB Welded Shunts

CRE2512

Overview

CRE2512 is a high-performance Metal Foil, Metal Strip Chip Resistor & EB Welded Shunt manufactured by Bourns, a global leader in electronic components. This passive component is engineered for precision current sensing and voltage division in a wide array of electronic circuits. Its robust construction and advanced material composition make it an ideal choice for applications demanding high accuracy and stability under varying operating conditions. As a chip resistor, it is designed for surface-mount technology (SMT), facilitating compact and efficient PCB layouts. The CRE2512 series represents Bourns’ commitment to delivering reliable and innovative solutions for modern electronics.

Key Specifications

Tolerances: 1 % This specification indicates the maximum permissible deviation of the actual resistance value from its nominal value. A tolerance of 1% signifies a high level of precision, meaning the resistor’s actual resistance will be within ±1% of its stated value. This is crucial in applications where exact resistance is critical for circuit performance, such as in precision measurement systems, feedback loops, and calibration circuits, ensuring consistent and accurate operation.

Component Type: Metal Foil, Metal Strip Chip Resistors & EB Welded Shunts This describes the fundamental construction and function of the component. Metal foil and metal strip resistors are renowned for their superior stability, low temperature coefficient of resistance (TCR), and excellent power handling capabilities compared to other resistor types. EB Welded Shunts further enhance current sensing accuracy by providing a very low and stable resistance path, making this component highly suitable for precise current measurement without significant power loss or self-heating.

Resistance Range: 0.001 to 0.009 Ω This extremely low resistance range indicates that the CRE2512 is primarily designed for current sensing applications. Resistors with such low ohmic values are often referred to as ‘shunts’ and are placed in series with a load to measure the current flowing through it by detecting the small voltage drop across the resistor. This specific range allows for precise current measurement in high-current circuits with minimal impact on the overall circuit performance.

Power per Resistor: 2 W / 3 W This attribute specifies the maximum amount of power (in watts) that the resistor can dissipate continuously without damage. The CRE2512’s ability to handle 2W or 3W of power dissipation highlights its robust design, making it suitable for applications where significant current flows and heat generation are expected. This high power rating ensures reliability and longevity, even in demanding industrial or automotive environments.

Temperature Coefficient: ±50 ppm Temperature Coefficient of Resistance (TCR) measures how much the resistance value changes with temperature variations, expressed in parts per million per degree Celsius (ppm/°C). A TCR of ±50 ppm is considered excellent for a current sense resistor. It indicates that for every degree Celsius change in temperature, the resistance will change by only 50 parts per million of its nominal value. This low TCR ensures high stability and accuracy of the resistance over a wide operating temperature range, which is vital for precision applications where environmental temperature fluctuations can impact performance.

Features and Benefits

• Exceptional Precision and Stability: With a tight tolerance of 1% and a low temperature coefficient of ±50 ppm, the CRE2512 offers unparalleled accuracy for critical current sensing and voltage division tasks, ensuring consistent performance across varying conditions.
• High Power Handling Capability: Rated for 2W to 3W, this resistor can reliably dissipate significant power, making it suitable for high-current applications without compromising its integrity or operational lifespan.
• Ultra-Low Resistance for Current Sensing: The resistance range of 0.001 to 0.009 Ω is specifically optimized for precise current measurement, minimizing voltage drop and power loss in the circuit while providing accurate feedback.
• Robust Metal Foil/Strip Construction: Utilizes advanced metal foil and metal strip technology, known for superior long-term stability, minimal drift, and excellent pulse handling characteristics compared to standard film resistors.
• Surface Mount Design (SMD): Its chip resistor format facilitates efficient automated assembly processes and enables compact PCB designs, crucial for miniaturized electronic devices and systems.
• Bourns Quality and Reliability: Manufactured by Bourns, a trusted name in passive components, ensuring high quality, consistent performance, and adherence to industry standards.

Typical Applications

• Power Management Systems: Ideal for current sensing in DC-DC converters, battery management systems (BMS), and power supplies where precise current monitoring is essential for efficiency, protection, and control.
• Motor Control: Used in variable frequency drives (VFDs), servo drives, and other motor control circuits to accurately measure motor current, enabling precise speed and torque control and protecting against overcurrent conditions.
• Industrial Automation: Integrated into programmable logic controllers (PLCs), industrial sensors, and process control equipment for accurate current measurement in feedback loops, ensuring reliable operation of automated machinery.
• Automotive Electronics: Employed in electric power steering (EPS), engine control units (ECUs), and infotainment systems for current sensing, contributing to vehicle safety, performance, and energy efficiency.
• Test and Measurement Equipment: Utilized in high-precision multimeters, oscilloscopes, and power analyzers where accurate current measurement is paramount for diagnostic and calibration purposes.

Summary

The Bourns CRE2512 Metal Foil, Metal Strip Chip Resistor & EB Welded Shunt stands out as a premium component for applications requiring high precision, stability, and power handling in current sensing. Its advanced design and robust specifications make it an indispensable part for demanding electronic circuits. This part is readily stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring timely availability for your projects.

Browse more Metal Foil, Metal Strip Chip Resistors & EB Welded Shunts at Cirkit Electro Components.

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