CRH1206FR240P05Z 1206 0.24Ω 0.5W SMD Resistor — Technical Overview & Selection Guide

Product Positioning

The CRH1206FR240P05Z is a high-power thick film chip resistor from Ever Ohms' CRH series, housed in a 1206 (imperial) package with a nominal resistance of 0.24Ω, a power rating of 0.5W, and ±1% tolerance. Ever Ohms, founded in 1988, is a specialized manufacturer of chip resistors and precision resistive components, with products certified to ISO9001, IATF 16949, and AEC-Q200 standards. The CRH series achieves a significant power density improvement within standard package sizes, delivering 0.5W in a 1206 footprint — a notable advantage for space-constrained circuit designs.

Part Number Decoding

• CRH: High-power thick film series, distinct from the standard-power CR series, offering roughly double the power handling capability in the same package size.

• 1206: Imperial package size, corresponding to metric 3216.

• F: ±1% tolerance, suited for current sensing and precision voltage division.

• R240: 0.24Ω nominal resistance, with "R" denoting the decimal point.

• P05Z: Suffix code indicating power specification and tape-and-reel packaging.

Key Electrical Specifications

The 0.24Ω low resistance combined with ±1% tolerance makes this part well-suited for current sensing applications. The 0.5W power rating positions it at the higher end of the 1206 package class, enabling sustained load operation with minimal resistance drift. The ±600 ppm/°C TCR should be factored into thermal compensation calculations for precision-sensitive designs.

CRH Series Technology

The CRH series utilizes a 96% alumina ceramic substrate with ruthenium-based thick film resistive paste, sintered at high temperature. The terminal electrodes employ a Ag/Ni/Sn three-layer structure for solderability and sulfur resistance. The series spans eight package sizes from 0402 to 2512, with power ratings from 0.1W to 2W and resistance values from 10mΩ to 10MΩ, providing design flexibility across a wide range of power density requirements.

Typical Applications

Current Sensing and Feedback Loops. The 0.24Ω resistance with ±1% accuracy is suited for secondary-side current sensing in switching power supplies. The 0.5W rating provides headroom to withstand transient power surges during output short-circuit conditions.

Power Management Circuits. In DC-DC converters and linear regulator current-limiting paths, this resistor serves as a current-sense or voltage-divider element. The 1206 package supports high-density PCB layouts while the 0.5W rating offers safety margin during abnormal operating conditions.

Industrial Control and Motor Drives. In servo drives and variable-frequency drive current-sense front ends, the 0.24Ω value converts motor phase current into a measurable voltage signal. The thick film construction handles repetitive inrush currents during motor start/stop cycles.

Consumer Electronics and Communication Equipment. The part is equally applicable to power management modules in notebook motherboards, mobile chargers, and modems, where the 0.5W capacity supports compact power supply designs.

Sourcing and Procurement

Shenzhen Shunhai Technology Co., Ltd. is Ever Ohms' core Tier-1 authorized distributor in mainland China, holding the 2026 annual distribution certificate (No. TW0202601E0000122). The company carries the full Ever Ohms resistor portfolio, including thick film, precision thin film, alloy, and automotive-grade resistors in packages from 0402 to 2512. A dedicated FAE team provides selection guidance, power derating analysis, and circuit optimization support.

Huanian Mall (www.hnstshop.com) is Ever Ohms' officially certified online authorized distributor, operated by Shenzhen Huanian Santian Electronics Co., Ltd. The platform offers real-time inventory lookup, online selection tools, tiered pricing, and one-click ordering, with support for small-batch purchases suitable for prototyping and design verification. A traceability system ensures every Ever Ohms resistor can be traced back to its original production batch.

Selection Considerations

When specifying the CRH1206FR240P05Z, consider the following: (1) apply power derating based on the actual ambient temperature — 0.5W is rated at 70°C; (2) account for the ±600 ppm/°C TCR in precision current-sensing designs, potentially with software-based temperature compensation; (3) verify solder process compatibility with the Ag/Ni/Sn terminal metallization for standard reflow profiles.

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