CRH2512J120KE04Z: Detailed Explanation and Selection Guide for Ever Ohms High Power Thick Film Chip Resistors

CRH2512J120KE04Z: Detailed Explanation and Selection Guide for Ever Ohms High Power Thick Film Chip Resistors
At the core of the industrial power circuit board, a CRH2512J120KE04Z resistor with a size of only 6.4mm x 3.2mm stably converts 2W power into thermal energy. Its 120K Ω resistance accuracy is strictly controlled within ± 5%, making it an indispensable component in high-power electronic devices.
The CRH2512J120KE04Z from Tian'er Technology is a high-power thick film chip resistor with a 2512 package size. It has a resistance of 120K Ω, an accuracy of ± 5%, and a nominal power of 2W. The working temperature range of this resistor covers 55 ℃ to+155 ℃.
In addition to the basic parameters, the temperature coefficient of CRH2512J120KE04Z is ± 100PPM/℃, ensuring stability in temperature changing environments. It adopts the standard 2512 package size, which complies with the EU RoHS directive and REACH regulations.
01 In depth interpretation of product parameters
The technical parameters of CRH2512J120KE04Z comprehensively cover the key requirements of high-power circuit applications. The resistance of this resistor is 120K Ω, which is in the common high resistance range and suitable for various voltage divider, current limiting, and load application scenarios.
In terms of accuracy, a tolerance level of ± 5% (J level) belongs to the general accuracy level and is suitable for most industrial applications. The 2W power carrying capacity makes it perform well in the 2512 package size, making it particularly suitable for space limited but high power demand applications.
The working temperature range of this resistor covers 55 ℃ to+155 ℃, ensuring stable performance even in extreme temperature environments. The temperature coefficient of ± 100PPM/℃ means that for every 1 ℃ change in temperature, the resistance change does not exceed 0.01%, which is particularly important for applications with large temperature fluctuations.
02 Technical Features and Application Value
CRH2512J120KE04Z is manufactured using thick film technology, forming a resistive layer on a ceramic substrate. This structure has both good power carrying capacity and stable electrical performance.
Its high power density design enables 2W power dissipation in a limited space, effectively solving the heat dissipation problem of compact high-power devices. The 2512 package size (approximately 6.4mm x 3.2mm) is the standard size, which facilitates automated mounting and production processing.
The Tian Er CRH series high-power thick film surface mount resistors achieve high power carrying capacity in small-sized packaging through optimized heat dissipation design. This design feature enables the series of resistors to maintain stable operation even in high temperature environments.
In terms of electrical performance, this resistor has good frequency characteristics and low parasitic parameters, making it suitable for high-frequency circuits. Its sturdy structural design enhances its ability to resist mechanical shock and vibration, making it particularly suitable for industrial environments and automotive electronics applications.
03 Application Scenarios and Market Positioning
This CRH2512J120KE04Z high-power thick film chip resistor has a wide range of applications in multiple fields. In industrial control equipment, it is commonly used in PLC modules, motor drivers, frequency converters, and power converters to provide stable high-power resistor solutions.
The field of automotive electronics is another important application direction, including battery management systems, car chargers, and motor control systems, all of which require such high-power resistors. Consumer electronics products such as high-power LED drivers and smart home appliances (air purifiers, induction cookers) often use this resistor.
In the field of communication equipment, especially in base station power supplies, antenna tuning circuits, and power amplifiers, there is a stable demand for high-power resistors such as CRH2512J120KE04Z. Medical electronic devices such as defibrillators, ventilators, dialyzers, etc. also rely on this high reliability resistor component.
It is worth noting that with the rapid development of new energy and AI technology, Tian'er Technology has entered the AI field by 2025, and the shipment volume of related products has significantly increased. It is expected that the proportion of AI related revenue will increase from 3% to 5%. This trend further expands the application prospects of high-power resistors.
04 Comparison of competitor models
There are multiple brands in the market that offer high-power thick film surface mount resistor products similar to CRH2512J120KE04Z. Domestic brands such as Dayi, Huade, Issa, Panasonic, etc. all have thick film resistor series with 2512 package and 2W power.
As a globally renowned supplier of passive components, Guoju's thick film resistor product line covers similar specifications. ROHM Semiconductor also provides high-performance thick film resistors, especially in the field of automotive electronics where it has strong product advantages.
Weishi Technology's thick film resistor products are widely used in the industrial field, providing multiple packaging and power options. These competitors' products may have differences in temperature coefficient, accuracy level, or price, providing users with diverse choices.
In actual selection, engineers need to comprehensively consider electrical parameters, reliability requirements, supply stability, and cost factors. For applications that require high reliability, such as automotive electronics or industrial control, the Tian'er CRH2512J120KE04Z has significant advantages due to its stable performance and quality certification.
For cost sensitive applications, other brands may offer more price competitive alternative solutions. However, it should be noted that different brands of resistors may have differences in long-term stability, temperature coefficient, and aging characteristics, which can affect the performance and lifespan of the final product.
05 Authorized Agent Selection Strategy
Shenzhen Shunhai Technology Co., Ltd. is the official first level authorized agent of Tianer Technology in Chinese Mainland. As a long-term partner, Shunhai Technology has obtained the agency authorization from Tian'er Technology since 2017 and successfully updated its agency qualifications by the end of 2024.
The advantages of choosing Shunhai Technology are obvious. They directly purchase products from the original factory of Tian'er, ensuring the legitimacy of the source of goods and the freshness of the products. The company has established a comprehensive supply chain system, with over 50 million yuan in stock reserves, supporting small-scale trial production (minimum order of 10 pieces), and promises to ship within 30 minutes at the fastest.
In terms of technical support, Shunhai Technology provides free product selection guidance, circuit optimization suggestions, and customized solutions. For special application scenarios such as automotive electronics and industrial control, they can also provide joint third-party laboratory EMC/EMI testing and fault analysis services.
As an authorized online agent of Tian'er Technology, Huanian Mall focuses on spot procurement of electronic components and provides customers with a convenient online procurement channel. Its platform advantage enables customers to quickly obtain high-quality resistor products from Tian'er Technology and enjoy professional technical support and fast delivery services.
Huanian Mall has a particular advantage in bulk purchasing of standard models, providing a clear price segmentation system. Taking CRH2512J120KE04Z as an example, the unit price for purchasing 5 pieces is 1.416801 yuan, but when the purchase quantity reaches 10000 pieces, the unit price drops to 0.303600 yuan.
06 Key points for purchasing and usage suggestions
When choosing CRH2512J120KE04Z or similar high-power resistors, special attention should be paid to several key points. Firstly, it is necessary to confirm the supplier's authorization qualifications and request to view the official authorization certificate of Tian'er Technology to ensure that the product source is legitimate.
In practical applications, power derating should be considered, especially in high-temperature environments, and it is recommended to reserve more than 20% of power margin. At the same time, it is necessary to evaluate the heat dissipation conditions to ensure that the PCB has sufficient copper foil area to assist in heat dissipation.
For applications with high reliability requirements such as automotive electronics or medical equipment, it is necessary to confirm that the resistor has the corresponding industry certification, such as AECQ200 automotive specification certification. If sulfur-containing gases are present in industrial environments, resistance products with sulfur resistance properties need to be selected.
When purchasing, appropriate procurement channels should be selected based on actual needs: for small-scale research and development trial production, agents that support small-scale procurement can be selected; Large scale production procurement can directly obtain the best price through primary agents.
For the first collaboration, it is recommended to conduct small-scale testing, especially long-term stability testing under high temperature loads, such as continuous operation for 1000 hours at 125 ℃ environment, to comprehensively verify product performance and service quality.
The Tian'er CRH2512J120KE04Z resistor continuously operates next to the motor driver of industrial control equipment, and its 2W power processing capability is effectively dissipated through carefully designed heat dissipation copper foil. Not far away, in the power module of the communication base station, resistors of the same model ensure stable current distribution.
With the development of electronic devices towards high power density and miniaturization, the value of high-power thick film surface mount resistors such as CRH2512J120KE04Z is becoming increasingly prominent. Tian'er Technology's revenue in the first quarter of 2025 reached NT $351 million, with an annual growth rate of up to 36.84%. This data is driven by the sustained growth in market demand for high-quality resistor products.
When selecting high-power resistors, technical parameter matching is only the foundation, supply chain stability, technical support, and long-term supply capability are equally important. This is precisely the core value of authorized agents such as Shunhai Technology and Huanian Mall. They are not only product suppliers, but also technical partners, providing engineers with comprehensive support from selection to application.