CRH1206F470KP05Z 470KΩ 0.5W High Power Thick Film Resistor in 1206 Package

CRH1206F470KP05Z 1206 470K 0.5W Ever Ohms Thick Film Resistor: Technical Analysis and Selection Guide

1. Product Overview

The CRH1206F470KP05Z is a flagship model in Ever Ohms' CRH series of high-power thick film chip resistors. Built in a standard 1206 package, this component offers a nominal resistance of 470KΩ with ±1% tolerance and a power rating of 0.5W — double the 0.25W typically found in conventional 1206 thick film resistors. This makes it well suited for circuit designs where heat dissipation and power handling are critical constraints.

Ever Ohms Technology Co., Ltd., a Taiwan-based specialty resistor manufacturer, has established its CRH series as a trusted solution across industrial control, power management, and automotive electronics. The CRH1206F470KP05Z, with its 0.5W capability and ±100ppm/℃ temperature coefficient, delivers a balanced combination of precision and stability in the mid-to-high resistance range.

2. Key Technical Specifications

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3. Part Number Nomenclature

The CRH1206F470KP05Z follows Ever Ohms' standardized naming convention:

• CRH: Series identifier for High Power Thick Film Chip Resistors, distinguishing it from the standard-power CR series.
• 1206: Package code in imperial units, equivalent to metric 3216 (3.2mm length * 1.6mm width).
• F: Tolerance grade, where F = ±1%. Other grades include J (±5%), D (±0.5%), and B (±0.1%).
• 470K: Nominal resistance value, 470 kilo-ohms (470,000Ω).
• P05Z: Packaging and TCR suffix — P indicates tape and reel, 05 corresponds to ±100ppm/℃ TCR, and Z denotes lead-free (RoHS compliant).

Understanding this coding system helps engineers quickly identify cross-references. For example, a ±5% version would be CRH1206J470KP05Z, while a higher-power alternative in a larger package would be CRH1210F470KP05Z (1210, 0.66W).

4. Technical Features and Design Advantages

Double Power in the Same Footprint

Conventional 1206 thick film resistors are typically rated at 0.25W. Through optimized resistor paste formulations and electrode structure, the CRH series achieves 0.5W in the identical 1206 package. For applications dissipating 0.3W to 0.4W, this eliminates the need to step up to a 1210 or larger package, conserving valuable PCB real estate.

Precision in the Mid-High Resistance Range

The 470KΩ value falls in the mid-to-high resistance segment, where thick film technology historically struggles with elevated temperature coefficients. The CRH1206F470KP05Z maintains a TCR of ±100ppm/℃ combined with ±1% tolerance, ensuring reliable performance in voltage dividers, feedback loops, and bias circuits where resistance stability directly affects circuit accuracy.

Wide Operating Temperature Range

The -55℃ to +155℃ operating range covers virtually all industrial-grade requirements. Full power is available at ambient temperatures up to 70℃, with linear derating above that point to zero power at 155℃. Best practice recommends keeping actual dissipation below 70% of the rated value to maximize component longevity.

Lead-Free Termination

The nickel barrier layer with pure tin plating meets RoHS directives, provides excellent solderability, and resists tin whisker formation — compatible with lead-free reflow soldering processes.

5. Typical Applications

The combination of 0.5W power and 470KΩ resistance makes the CRH1206F470KP05Z particularly relevant in:

• Power Management: Voltage sensing dividers, startup resistors, and bleeder resistors in switching power supplies where both moderate power and high resistance are required.
• Industrial Control: Signal conditioning in PLC analog input modules, front-end dividers for isolation amplifiers, and sensor interface circuits.
• Automotive Electronics: Detection and divider circuits in on-board chargers (OBC), DC-DC converters, and BMS (verify automotive-grade variant availability).
• Telecommunications: Base station power modules, optical transceiver supply circuits, and power detection in routers and switches.
• Consumer Electronics: High-power adapters, smart home appliance control boards, and power tool driver circuits.

6. Selection Considerations

When specifying a 1206 470K 0.5W Ever Ohms resistor, engineers should keep the following points in mind:

Power Derating: Despite the 0.5W rating, enclosed environments or densely populated PCBs may limit heat dissipation. Thermal simulation or physical measurement of the component surface temperature is recommended to ensure the 155℃ maximum is not exceeded.

Voltage Rating: The 200V maximum working voltage may be insufficient in high-voltage DC bus applications (e.g., post-rectification mains voltage). For circuits above 300V DC, consider a higher-voltage-rated part or a series-connected solution.

Tolerance Matching: ±1% is adequate for most general-purpose circuits. For precision instrumentation or high-resolution ADC front ends, Ever Ohms' thin film series (e.g., TH series) offers TCR as low as ±25ppm/℃.

Authorized Supply Chain: Sourcing through authorized channels is essential for ensuring product authenticity and on-time delivery. Shenzhen Shunhai Technology Co., Ltd. (深圳市顺海科技有限公司), an authorized distributor for Ever Ohms, maintains comprehensive CRH series inventory and provides factory-level technical support and sample services. For low-volume prototyping or R&D builds, Huanian Mall (华年商城) offers online part selection, real-time pricing, and fast shipping with no minimum order — ideal for engineering verification during early project stages.

7. Alternative Part Numbers

When the CRH1206F470KP05Z faces lead-time constraints or parameter adjustments are needed, consider these alternatives:

• Same resistance, lower precision: CRH1206J470KP05Z (±5%, 0.5W) for non-critical applications.
• Same precision, standard power: CR1206F470KP05Z (±1%, 0.25W) when power dissipation is low.
• Higher power package: CRH1210F470KP05Z (1210, 0.66W) for additional power headroom.
• Anti-sulfur version: STH1206F470KP05Z for sulfur-bearing environments or high-reliability requirements.

Always verify PCB pad compatibility and derating curve differences before substitution, and conduct thorough validation.

8. Conclusion

The CRH1206F470KP05Z delivers 0.5W power handling in a 1206 footprint, offering ±1% tolerance and ±100ppm/℃ TCR at 470KΩ — a well-balanced solution for voltage division, current limiting, and sensing circuits in industrial control, power management, and telecommunications equipment. Ever Ohms' mature thick film manufacturing and stable volume supply provide a solid foundation for large-scale deployment.

For detailed datasheets, samples, or volume pricing of the CRH1206F470KP05Z, contact Shenzhen Shunhai Technology Co., Ltd. for factory-direct technical support, or visit Huanian Mall to check real-time inventory and pricing online.