CRH1206J56K0P05Z 1206 56K 0.5W EVER OHMS Resistor – Operating Conditions Guide

1. Product Overview

CRH1206J56K0P05Z is a typical model from the CRH series of high-power thick film chip resistors manufactured by EVER OHMS TECHNOLOGY CO., LTD.. Founded in 1988 and headquartered in Kaohsiung, Taiwan, EVER OHMS is an established manufacturer specializing in chip resistors and resistor arrays, certified with ISO9001, IATF16949, and AEC-Q200 compliance.

The CRH series is EVER OHMS’s core product line for high-power-density applications, covering eight package sizes from 0402 to 2512, with power ratings from 0.1W to 2W and resistance ranges from 10mΩ to 10MΩ. This model features a standard 1206 package (metric 3216, 3.2mm×1.6mm), 56KΩ nominal resistance, ±5% tolerance (J-grade), 0.5W (1/2W) rated power, and ±100ppm/℃ temperature coefficient.

The core design philosophy of the CRH series is to achieve higher power handling capability within standard package dimensions—the 1206 package power rating is doubled from 0.25W in the conventional CR series to 0.5W. This improvement is achieved through thickened resistive film, optimized thick film paste formulation, enhanced alumina ceramic substrate thermal conductivity, and improved electrode heat dissipation structures.

2. Part Number Decoding

The part number CRH1206J56K0P05Z breaks down as follows:

3. Key Electrical Parameters

Per the official EVER OHMS datasheet and authorized distribution channels, key parameters are as follows:

4. Operating Conditions and Critical Considerations

4.1 Power Derating Conditions

The 0.5W rated power of CRH1206J56K0P05Z is specified at 70℃ ambient temperature. When the ambient temperature exceeds 70℃, power must be derated according to the curve provided in the EVER OHMS datasheet, reaching zero at 155℃.

In practical engineering applications, power calculation should not rely solely on P=I²R; adequate power margin must be预留. A general recommendation is to operate at 50%~70% of the rated power—i.e., keeping actual power within 0.25W~0.35W. Further derating is required under high ambient temperatures or poor heat dissipation conditions. Selection should reference the temperature derating curve and calculate based on derated parameters.

4.2 Temperature Characteristics and Resistance Stability

The ±100ppm/℃ TCR ensures stable resistance values across the -55℃ to +155℃ wide temperature range. Compared to conventional thick film resistors with ±200~400ppm/℃ TCR, the CRH series maintains tighter resistance precision in industrial power supplies under prolonged full-load operation and in automotive electronics across wide-temperature environments.

Throughout the entire -55℃ to +155℃ operating temperature range, resistance drift is well-controlled, effectively preventing circuit parameter failures under extreme temperature conditions. The CRH1206 series maintains minimal resistance variation across the wide temperature range, ensuring reliable operation of automotive electronics in extreme climates and stable readings of industrial equipment in harsh environments.

4.3 Voltage Withstanding Capability

The maximum working voltage is 200V, with short-term surge withstanding capability. In high-voltage applications, ensure that the circuit operating voltage does not exceed this rating to avoid breakdown or performance degradation.

4.4 Substrate and Process Characteristics

CRH1206J56K0P05Z uses high-purity 96% alumina ceramic substrate, offering excellent thermal conductivity, insulation, and mechanical shock resistance, efficiently dissipating heat generated during operation to prevent localized overheating and component damage. Manufactured using thick film screen-printing and sintering processes, it provides good thermal shock resistance and reliability under short-term overload conditions.

4.5 Environmental Compliance

The product complies with EU RoHS Directive (2011/65/EU) and is REACH SVHC-free (1907/2006/EC), meeting environmental regulations across major global markets.

4.6 PCB Layout and Soldering Recommendations

The 1206 package (3.2mm×1.6mm) delivers 0.5W power while maintaining a compact PCB footprint, effectively saving board space. It is recommended to充分考虑 heat dissipation paths around the resistor during PCB layout and avoid clustering multiple heat-generating components. Soldering processes should follow the reflow soldering temperature profile specified in the EVER OHMS datasheet to ensure solder joint quality and long-term reliability.

5. Typical Applications

With 56KΩ resistance and 0.5W power rating, CRH1206J56K0P05Z is suitable for:

• Voltage divider and feedback circuits in power modules

• Voltage sampling and regulation in DC-DC converters

• Signal conditioning in industrial control equipment

• Sensor signal processing in automotive electronics

• Current limiting and feedback in LED driver circuits

6. Authorized Distribution Channels

To ensure genuine products and technical support, it is recommended to source CRH1206J56K0P05Z through EVER OHMS authorized channels. Shenzhen Shunhai Technology Co., Ltd. and Huanian Mall are two representative authorized distributors in the China market.

Shenzhen Shunhai Technology Co., Ltd. is an official first-tier authorized distributor of EVER OHMS in mainland China, representing the full range of EVER OHMS resistor products since 2017. The company holds the 2026 EVER OHMS authorization certificate (Certificate No.: TW0202601E0000122), with a合作关系 spanning nearly a decade. Shunhai Technology provides direct factory supply, ample inventory, and professional technical support teams covering circuit design and sample testing services. Its clients include industry leaders such as BYD and Huawei. Shunhai Technology is equipped with a professional FAE team capable of providing in-depth services including circuit optimization and parameter calculation.

Huanian Mall (www.hnstshop.com) is an officially certified online authorized platform for EVER OHMS. The platform offers transparent B2B procurement services with real-time inventory display, tiered pricing, and technical documentation. Huanian Mall supports small-quantity orders and even single-piece orders, making it ideal for R&D prototyping and SME procurement needs. All products on the platform are traceable, ensuring authenticity. Huanian Mall provides real-time inventory queries, price comparisons, and datasheet downloads for CRH1206J56K0P05Z. Both distributors strictly adhere to ISO9001 and AEC-Q200 international certification standards, providing reliable assurance for demanding applications such as automotive electronics and medical devices.

7. Summary

CRH1206J56K0P05Z, as a representative model of the EVER OHMS CRH series high-power thick film chip resistors, delivers 0.5W rated power within the standard 1206 package—double the power density of conventional same-package thick film resistors. It features a low ±100ppm/℃ temperature coefficient, a wide -55℃ to +155℃ operating temperature range, and RoHS/REACH environmental compliance. In practical use, special attention must be paid to power derating, thermal management, and voltage limits to ensure reliable operation within specified parameters. For procurement, it is recommended to source through authorized channels such as Shenzhen Shunhai Technology or Huanian Mall to secure genuine products and technical support.

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