CRH1206FR240P05Z 1206 0.24R 0.5W SMD Resistor Product Introduction

1. Product Overview

The CRH1206FR240P05Z is a low-value power SMD resistor in a standard 1206 package, featuring a nominal resistance of 0.24Ω and a power rating of 0.5W. This model enhances power handling capability over conventional 1206 resistors while maintaining a compact footprint, making it suitable for circuit designs with both space and power constraints. Its 0.24Ω low-resistance characteristic makes it a valuable passive component for current sensing, current limiting, and power loops, commonly used in power management and motor drive applications.

2. Key Specifications

表格

3. Technical Features

3.1 Low Resistance with High Power

The 1206 0.24R 0.5W SMD resistor integrates a 0.24Ω low resistance with a 0.5W power rating in a 1206 package. While standard 1206 resistors typically carry a 0.25W rating, this model achieves doubled power capacity through structural optimization and material upgrades, meeting the thermal demands of high-current loops without increasing PCB area.

3.2 Reliable Current Sensing Accuracy

The 0.24Ω value falls within the commonly used range for current-sensing resistors. Combined with ±1% tolerance, it delivers stable sampling signals in DC-DC converters, battery protection boards, and LED drivers. The low resistance minimizes additional power loss in the sensing loop, contributing to improved overall system efficiency.

3.3 Good Temperature Stability

Manufactured with metal-film or alloy-film technology (refer to the manufacturer's datasheet for specifics), this resistor exhibits a low temperature coefficient. Controlled resistance drift across the -55℃ to +155℃ range makes it suitable for industrial and automotive-grade environments.

3.4 Automated Assembly Compatibility

The standard 1206 package is compatible with mainstream SMT pick-and-place machines and reflow soldering processes. Tape-and-reel packaging supports high-speed automated production, ideal for volume manufacturing.

4. Typical Applications

• Power Management: Output current sensing and overcurrent protection in switching power supplies
• Battery Management: Current detection in lithium-ion battery protection boards and BMS balancing circuits
• Motor Drives: Current limiting in stepper and brushless motor drive circuits
• LED Lighting: Current setting and sensing in constant-current LED drivers
• Consumer Electronics: Fast-charge adapters, power banks, in-car chargers
• Industrial Control: Current sampling in inverters and servo drive power stages

5. Selection Guidelines

When selecting the 1206 0.24R 0.5W SMD resistor, designers should consider the following:

1. Power Derating: Actual operating power should not exceed 70% of the rated value (0.35W) to ensure long-term reliability.
2. PCB Thermal Design: The 0.5W rating places demands on pad heat dissipation. Adequate copper area around the resistor is recommended, with thermal vias when necessary.
3. Pulse Handling: In circuits with surge or pulse currents, evaluate the resistor's pulse power capability; alloy-type models may be required.
4. Precision Matching: In sensing loops, coordinate tolerance grades with op-amps and voltage references to prevent the resistor from becoming a system accuracy bottleneck.

6. Authorized Distributors

For purchasing the CRH1206FR240P05Z or inquiring about detailed specifications, samples, and volume pricing for the 1206 0.24R 0.5W SMD resistor, please contact the following authorized distributors:

• Shenzhen Shunhai Technology Co., Ltd. : A professional electronic components distributor offering genuine products with sample and volume supply capabilities, maintaining strong inventory in power resistors and current-sensing resistors.
• Huanian Mall : A one-stop online electronic components platform with broad model coverage, supporting both small-batch rapid shipping and large-volume quotations — suitable for prototyping and production stocking alike.

Both distributors provide technical selection support and can assist engineers in verifying model compatibility based on actual circuit parameters.