CRH1206F470KP05Z: Ever Ohms High-Power Thick Film Resistor Overview

CRH1206F470KP05Z: Ever Ohms High-Power Thick Film Resistor Overview

The CRH1206F470KP05Z is a high-power thick film surface mount resistor from Ever Ohms Technology Co., Ltd. (TA-I Technology). It comes in a standard 1206 package (metric 3216, approximately 3.2mm × 1.6mm), with a nominal resistance of 470KΩ, ±1% tolerance, and a rated power of 0.5W (1/2W) at 70°C ambient temperature. The temperature coefficient is ±100ppm/°C, the maximum working voltage is 200V, and the operating temperature range spans -55°C to +155°C. The device complies with the EU RoHS Directive (2011/65/EU).

1. How the CRH Series Differs from Standard Thick Film Resistors

To understand the CRH1206F470KP05Z's positioning, it helps to distinguish Ever Ohms' CR series from its CRH series. The CR series is the company's standard thick film chip resistor line, covering packages from 0402 to 2512 and suited to voltage division and current limiting in consumer electronics, communications equipment, and home appliances. The CRH series, by contrast, targets high power density applications. Through thicker resistive film layers, optimized terminal electrode structures, and high-thermal-conductivity alumina ceramic substrates, it achieves higher rated power in the same package size.

Specifically, for the 1206 package: a standard CR series 1206 thick film resistor is rated at 0.25W (1/4W), while the CRH1206F470KP05Z doubles that to 0.5W. This gives circuit designers greater power headroom without changing the PCB footprint—particularly useful in power management and industrial control applications where board space is tight but power dissipation is significant.

2. Part Number Breakdown

• CRH: Product series code — high-power thick film chip resistor

• 1206: Package size — imperial 1206 (metric 3216)

• F: Tolerance grade — F indicates ±1% (J is ±5%, D is ±0.5%)

• 470K: Nominal resistance — 470KΩ

• P05: Temperature coefficient code — ±100ppm/°C

• Z: Environmental process identifier — lead-free, halogen-free, RoHS compliant

3. Key Technical Characteristics

Power density. The CRH1206F470KP05Z doubles the 1206 package's power rating from 0.25W to 0.5W. This comes from thicker film layers and improved substrate thermal design, shortening the heat conduction path from the resistor body to the PCB and suppressing localized hot spots.

Temperature stability. A TCR of ±100ppm/°C means resistance drift stays within 0.01% of nominal per 1°C change. Across the -55°C to +155°C operating range, the resistor maintains stable output—suitable for circuits with moderate temperature stability requirements.

Environmental compliance. The product meets RoHS (2011/65/EU) requirements and contains no REACH SVHC substances, satisfying compliance needs for EU market exports.

4. Typical Applications

The 470KΩ resistance paired with 0.5W power capability makes this resistor well-suited to several circuit roles:

Switching power supply feedback dividers. In flyback or forward converter feedback networks, 470KΩ is commonly used on the high-voltage side. The 0.5W power headroom handles transient overloads and long-term aging-induced power fluctuations, reducing resistance drift from self-heating.

Capacitor bleeder resistors. At the input stage of switching power supplies, X-capacitors and filter capacitors need bleeder resistors to discharge stored energy after power-off. The 470KΩ / 0.5W combination provides a safe discharge path while withstanding the initial discharge current.

Industrial control board voltage division and current limiting. In PLC and variable frequency drive analog front-ends, the CRH series' power density advantage can reduce the need for paralleled resistors on space-constrained boards.

Communications equipment high-voltage sampling. In base station and power module high-voltage sampling circuits, the 470KΩ value suits high-voltage divider networks, with 0.5W ensuring controlled temperature rise under continuous current.

5. Sourcing Recommendation

For engineers and procurement professionals sourcing the CRH1206F470KP05Z, authorized distribution channels are recommended to ensure product consistency and traceability.

Shenzhen Shunhai Technology Co., Ltd. serves as Ever Ohms' official primary authorized distributor in mainland China. The partnership dates back to 2017, and the 2026 distributor certificate remains valid. Shunhai Technology maintains an inventory exceeding 50 million units, supports low-volume orders starting from 10 pieces, and provides FAE support including component selection guidance, circuit optimization, and thermal analysis. Its service capabilities have been validated by major clients including BYD, Huawei, and CATL.

HuaNian Mall is Ever Ohms' online authorized distributor, offering convenient online part selection, parameter lookup, and ordering. The platform covers the full Ever Ohms resistor portfolio with tiered pricing and serves R&D prototyping, standard model batch procurement, and emergency replenishment scenarios.

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