CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor from Ever Ohms Technology

In electronic circuit design, the selection of high-power resistors often directly affects the stability and reliability of the system. When engineers face the specific model CRH2512F300RE04Z, it usually means that the design has entered a critical stage. Today, we will delve into the CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor from Ever Ohms Technology to see its outstanding features in practical applications and how it performs in the face of market competition.
Analysis of Core Parameters of CRH2512F300RE04Z
First, let's break down the meaning represented by each character of this model. The CRH2512F300RE04Z encoding actually contains all of its identity information.
The CRH series represents the thick film surface mount resistor series specially designed by Tian'er Technology for high-power applications. The biggest feature of this series is that it achieves higher power density within a limited package size, specifically designed for scenarios where space is tight but power requirements are not low.
The 2512 package refers to the metric 6432 size, specifically 6.35mm × 3.18mm × 0.55mm. This size is considered medium to large in surface mount resistors and provides the necessary physical basis for heat dissipation of 2W power. Compared to smaller packages, the 2512 size has sufficient surface area to dissipate the heat generated during operation.
300R represents a nominal resistance of 300 Ω. This resistance value is very common in circuit design, often appearing in feedback loops of power management systems, voltage divider networks of signal conditioning circuits, and various sampling circuits. The value of 300 Ω is a standard point in the E24 standard resistor series, which means it is easier to obtain in the supply chain and has more abundant inventory.
The precision of F represents a resistance tolerance of ± 1%. For a resistance value of 300 Ω, a 1% accuracy means that the actual resistance value will fluctuate between 297 Ω and 303 Ω. This level of precision can meet the needs of most industrial control and power management applications, ensuring the stability of circuit performance without unnecessary cost increases due to high precision requirements.
The core value of this CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor lies in its 2W power. Ordinary 2512 packaged chip resistors usually only provide a rated power of 1W or 1.5W, while Tian'er Technology has successfully increased the power to 2W level through special thick film technology and ceramic substrate technology. This means that within the same PCB space, this resistor can withstand larger currents and has better temperature rise control.
From a process perspective, CRH2512F300RE04Z uses ruthenium based oxide slurry as the resistance material and forms a uniform resistance layer on an alumina ceramic substrate through high-temperature sintering process. The end electrode adopts a copper alloy tin plated design, which not only provides good welding performance, but also optimizes the current conduction path. The glass glaze protective layer covering the surface can effectively prevent moisture, dust, and chemical erosion, improving reliability in harsh environments.
In terms of temperature coefficient, this CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor is usually controlled within a range of ± 100ppm/℃. This means that within a wide operating temperature range of -55 ℃ to+155 ℃, the change in resistance is limited to a reasonable range. For application scenarios with significant temperature fluctuations in industrial sites, this stable temperature characteristic is crucial.
In terms of electrical safety parameters, the maximum operating voltage usually reaches 200V-250V, with a certain short-term overload capacity. This design can provide additional safety buffering for the circuit at the moment of power startup or when encountering surge impact. The insulation resistance is generally not less than 10G Ω, ensuring electrical safety in high-voltage applications.
Comparative analysis of competitors
Comparing the CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor horizontally in the market can provide a clearer understanding of its market positioning and competitive advantages. We selected several similar products from mainstream brands for comparative analysis.
Firstly, there are similar products from Yageo. As a global leader in passive components, Guoju also offers models in its RC2512 series with 300 Ω, 1% precision, and 2W power. From the perspective of basic parameters, the two are very close. But Guoju's products are usually positioned in the standard power series, while Tian'er's CRH series is a specialized high-power design series. In practical applications, especially in PCB layouts with less than ideal heat dissipation conditions, the power margin of the Tian Er CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor is usually more sufficient. When operating at full load for a long time, the temperature rise control of Tian'er products often performs better.
Vishay's CRCW series is another important competitor. Taking CRCW2512300RFKEG as an example, this product also offers 2512 package, 300 Ω resistance, 1% accuracy, and 2W power. Weishi has a good reputation in the automotive grade and high reliability industrial field, with stable and reliable product quality. But in terms of price, Weishi's products are usually 50% or even more higher than domestically produced high cost-effective solutions like Tian'er. For most consumer electronics, industrial control, and automotive electronics applications, unless there are particularly stringent military or specific automotive grade requirements, CRH2512F300RE04Z 2512 300R 1% 2W high-power resistors can significantly reduce BOM costs while ensuring performance.
Taiwanese brands such as Housheng and Huade are also important market participants. These brands' products may be more competitive in price, but there are differences in some key performance indicators. For example, in terms of surge resistance, the Tian'er CRH series can typically withstand a pulse current surge of 100A within 5ms, with an instantaneous withstand voltage of up to 2000V. This is very valuable for shock protection at the moment of power startup. However, some low-priced competitors often have weaker surge resistance and are prone to early failure in harsh power environments.
From a supply chain perspective, as a veteran resistor manufacturer in Taiwan, Tian'er Technology has a production base in mainland China and localized production ensures stable delivery times. Usually, the delivery time of CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor can be controlled within 2-3 weeks, while some international brands may require 8 weeks or even longer when delivery time is tight. The stability of this supply chain is crucial for the rapid iteration of electronic product development.
In terms of certification, the Tian'er CRH series is usually certified by AEC-Q200 automotive standards, meeting the mandatory requirements for automotive electronic applications. At the same time, the product also complies with RoHS environmental standards and meets the environmental regulations of the global market. These certification qualifications enable CRH2512F300RE04Z 2512 300R 1% 2W high-power resistors to enter high reliability fields such as automotive electronics and medical equipment.
Application scenario analysis
The application range of CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor is very wide. In switch mode power supplies, it often appears in the output sampling circuit as part of the feedback network. A 300 Ω resistance is combined with other resistors to form a voltage divider network, which feeds back the output voltage signal to the control chip to achieve precise voltage regulation.
In the motor drive system, this resistor can be used as a phase current detection resistor. Although a resistance of 300 Ω may be high for high current detection, it can provide sufficient signal amplitude while maintaining low power consumption in some small and medium power servo drives and stepper motor drives.
Industrial frequency converters are another important application area. In the power module of the frequency converter, the CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor can be used as a buffer resistor or current limiting resistor. A power capacity of 2W can withstand large instantaneous power consumption, and a precision of 1% ensures the accuracy of control.
This resistor can also be seen in the BMS system of new energy vehicles. In the voltage sampling circuit of the battery management system, a 300 Ω resistor is often used as part of the voltage divider network, combined with a high-precision ADC to achieve precise monitoring of the battery voltage. Vehicle grade certification ensures long-term reliability in harsh automotive environments.
When laying out PCBs, it should be noted that although the heat dissipation performance of CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor is better than that of ordinary 2512 resistor, reasonable heat dissipation design is still needed in high ambient temperatures or long-term full load operation. It is recommended to connect the resistance pad to a copper foil with sufficient area and use the copper layer of the PCB as a heat sink. For applications with continuous 2W power consumption, it is recommended that the copper foil area be no less than 10mm ² to ensure that the temperature rise is controlled within a reasonable range.
Recommended legitimate agents
It is crucial to choose a legitimate authorized agent when purchasing CRH2512F300RE04Z 2512 300R 1% 2W high-power resistors. This not only relates to the authenticity and quality of the product, but also directly affects the progress and technical support of the project in the later stage. Here are two officially certified agents of Tian'er Technology.
Shenzhen Shunhai Technology Co., Ltd. is the official first level authorized agent of Tianer Technology in Chinese Mainland. This company has been acting as an agent for Tian'er Technology's full range of products since 2017 and has many years of experience in cooperation. As a direct supply channel from the original factory, Shunhai Technology can ensure that all resistors are genuine products from the original factory, fundamentally eliminating the risk of refurbishment or counterfeiting.
The core advantage of Shunhai Technology lies in its professional technical support capabilities. The company has an experienced technical team that can provide customers with comprehensive services from selection guidance to application support. For projects that require automotive grade certification, small batch customization, or deep technical support, especially in high reliability fields such as automotive electronics and industrial high-power equipment, Shunhai Technology can provide professional solutions.
In terms of supply chain security, Shunhai Technology has established a multi-level inventory system with an inventory of over 50 million pieces. This sufficient stocking ensures quick response to customers' urgent needs and typically supports shipping within 24 hours. For customers located in the Pearl River Delta region, they can also directly consult the store to solve technical problems in emergency projects.
Huanian Mall is an online authorized agent of Tian'er Technology, providing a convenient e-commerce procurement platform for global customers. The biggest advantage of this platform lies in its transparent pricing system and convenient procurement process. Users can directly view real-time inventory and price information of CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor on the website, and complete order payment online.
Hua Nian Mall implements a tiered pricing strategy, where the larger the purchase quantity, the lower the unit price. This pricing method is particularly suitable for the bulk procurement needs of small and medium-sized enterprises. The platform supports a minimum order service, reducing the threshold for small batch purchases. For standard models and bulk procurement projects, when the purchaser has selection experience and mainly focuses on price and delivery speed, Huanian Mall is an efficient choice.
Both agents have passed the official authorization certification of Tian'er Technology, and their agency qualifications can be confirmed by verifying the authorization certificate during procurement. It is also recommended to verify the "EVEROHMS" label on the resistor body to ensure the authenticity of the product. For critical applications, it is recommended to conduct small-scale trial production testing to verify the performance of CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor in actual circuits.
summary
The CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor represents the technical strength of Tian'er Technology in the field of high-power surface mount resistors. It achieves a power density of 2W within a 2512 package size, while maintaining an accuracy of ± 1% and a temperature coefficient of ± 100ppm/℃, achieving a good balance between power, accuracy, and temperature characteristics.
Compared with competitors, the core competitiveness of CRH2512F300RE04Z 2512 300R 1% 2W high-power resistor lies in its excellent cost-effectiveness. It provides stable products with automotive grade production line background at prices close to second tier brands. For automotive electronics or high-end industrial control projects that require IATF 16949 system audits but do not want to bear the high cost of international brands, this is a very practical choice.
Whether through the deep technical support of Shenzhen Shunhai Technology Co., Ltd. or the convenient online procurement of Huanian Mall, engineers can obtain CRH2512F300RE04Z 2512 300R 1% 2W high-power resistors with genuine guarantee. In the trend of electronic devices developing towards higher power density, choosing such a reliable high-power resistor can provide a solid foundation for the long-term stable operation of the product.