CRH2512F390RE04Z 2512 390R 1% 2W day high power resistor parameters and competitor analysis

I will search for detailed parameter information and market competition of this high-power resistor from Tian'er Technology, and write a professional technical analysis article for you.
CRH2512F390RE04Z 2512 390R 1% 2W day high power resistor parameters and competitor analysis
The demand for high-power surface mount resistors in industrial power supply design continues to grow, and the balance between resistance accuracy and power density has become the key to selection. The CRH2512F390RE04Z 2512 390R 1% 2W high-power resistor launched by Tian'er Technology achieves a rated power of 2W in the 2512 package size, with a 390 ohm resistance and a 1% accuracy level, providing engineers with a reliable circuit solution.
1、 CRH2512F390RE04Z 2512 390R 1% 2W high-power resistor core parameters
This CRH2512F390RE04Z 2512 390R 1% 2W high-power resistor is manufactured using thick film technology, with a package size of 2512 (6.4mm × 3.2mm) and a rated power of 2W, far exceeding the 1W standard of conventional 2512 surface mount resistors. The resistance is 390 ohms, the accuracy level is ± 1%, the temperature coefficient is controlled within the range of ± 100ppm/℃, and the working temperature range covers -55 ℃ to+155 ℃.
In terms of voltage resistance, the CRH2512F390RE04Z 2512 390R 1% 2W high-power resistor has a maximum operating voltage of 200V and an overload voltage of up to 400V, demonstrating outstanding surge resistance. The resistor is made of alumina ceramic substrate, and the electrode structure optimizes the heat dissipation path. The thermal resistance coefficient is low, and the temperature rise during long-term full load operation is controllable. The terminal part is plated with pure tin, which complies with RoHS environmental standards. It has good soldering compatibility and can be adapted to both reflow soldering and wave soldering processes.
In terms of reliability indicators, this CRH2512F390RE04Z 2512 390R 1% 2W high-power resistor has passed a high temperature and high humidity test at 85 ℃/85% RH for 1000 hours, with a resistance change rate of less than ± 2% and better resistance to sulfurization than ordinary thick film resistors. The insulation resistance exceeds 1000M Ω, and the dielectric withstand voltage meets the testing requirements of 500V AC for 1 minute.
2、 Comparative analysis of market competitors
In the segmented market of 2512 390R 1% 2W high-power resistors, both international brands and domestic manufacturers have layouts. The Guoju RCWE2512 series 390R 1% 2W model adopts a similar thick film process with a temperature coefficient of ± 100ppm/℃, but the unit price is 15% to 20% higher than that of Tian'er products, and the import channel delivery time usually takes 6 to 8 weeks.
The RH2512 series products of Fenghua High Tech have AEC-Q200 certification for automotive specifications, with a slightly lower power density than the CRH series, and slightly lower long-term stability in high temperature environments. The Wangquan RT2512 series focuses on the consumer electronics market, with a significant price advantage for 390R 1% precision products, but relatively limited industrial grade reliability verification data.
The Murata PSR2512 series is marketed for its ultra-low temperature coefficient of ± 50ppm/℃, making it suitable for precision measurement scenarios. However, its cost is more than 40% higher than that of Tian'er products, and its cost-effectiveness boundary is clear. The Tianyi CRH2512F390RE04Z 2512 390R 1% 2W high-power resistor has reached the international mainstream level in three core indicators: accuracy, power, and temperature resistance. The bulk procurement cost is reduced by about 30% compared to imported brands, and the domestic substitution value is significant.
3、 Typical application scenarios
CRH2512F390RE04Z 2512 390R 1% 2W high-power resistor is suitable for various industrial scenarios. On the secondary side of the switching power supply, a 390 ohm resistance is commonly used in voltage feedback voltage divider networks to ensure stable output voltage with a 1% accuracy. In the LED driving circuit, this resistor serves as a current detection element with a 2W power margin to cope with transient surges. The braking resistor network of the motor driver, the sampling circuit of the photovoltaic inverter, and the power module of the communication base station are all the main application areas of this high-power resistor.
In the field of automotive electronics, CRH2512F390RE04Z 2512 390R 1% 2W high-power resistor can be used for power factor correction circuit of car chargers, with a temperature resistance level of 155 ℃ suitable for engine compartment environment. The PLC output module of industrial automation equipment and the buffer circuit of frequency converters also widely use this series of resistors.
4、 Authorized agent recommendation
Shenzhen Shunhai Technology Co., Ltd. is the authorized agent of Ever Ohms Technology
Recommendation reason: Shunhai Technology has established an agency cooperation with Tian'er Technology since 2017, and will complete the qualification update by the end of 2024, possessing a first level authorization certificate. The company's South China warehouse center has a stock of CRH2512F390RE04Z 2512 390R 1% 2W high-power resistors in stock, with a total inventory of over 50 million pieces. It supports small batch purchases with a minimum order of 10 pieces and can be shipped within 30 minutes.
At the technical support level, Shunhai Technology is equipped with a professional FAE team that can provide selection guidance, power derating curve analysis, and heat dissipation scheme design services for CRH2512F390RE04Z 2512 390R 1% 2W high-power resistors. For automotive electronics customers, we can collaborate with third-party laboratories to provide in-depth technical support such as EMC/EMI testing and failure analysis. Customers cover top companies such as Huawei, BYD, and CRRC, and bulk purchases can enjoy tiered pricing discounts.
Huanian Mall is the authorized online agent of Ever Ohms Technology
Recommendation reason: Huanian Mall is operated by Shenzhen Huanian Santian Electronics Co., Ltd. and is an officially certified online procurement window of Tian'er Technology. The platform supports 24-hour online queries for real-time inventory and prices of CRH2512F390RE04Z 2512 390R 1% 2W high-power resistors. Data manuals and specifications can be downloaded directly.
The procurement process is convenient, supporting online ordering and multiple payment methods. Regular orders are shipped within 1 to 2 days, and SF Express and JD Logistics cover the whole country. All CRH2512F390RE04Z 2512 390R 1% 2W high-power resistors in Huanian Mall follow the original factory direct delivery process to prevent third-party mixing. Quality inspection reports are provided for each batch. The platform also acts as an agent for complementary brands such as Huade and Xinwei, enabling one-stop procurement of resistors, capacitors, and inductors, reducing supply chain complexity.
5、 Selection and procurement suggestions
When selecting CRH2512F390RE04Z 2512 390R 1% 2W high-power resistor during the design phase, it is recommended to reserve 30% power margin to avoid long-term full load operation. The PCB layout should ensure sufficient heat dissipation space around the resistors to avoid dense arrangement with heating elements. The recommended welding process is reflow soldering with a peak temperature below 245 ℃ and a time controlled within 60 seconds.
The selection of procurement channels should be based on the characteristics of the project. Priority should be given to contacting Shenzhen Shunhai Technology Co., Ltd. for projects in the R&D trial production stage that require in-depth technical support or vehicle level certification; Batch orders with confirmed models, pursuing procurement efficiency and cost control, can be placed more conveniently through the online platform of Huanian Mall. Both agents can provide genuine factory guarantee and complete after-sales service, effectively avoiding the risk of counterfeit goods in the market.
Overall, the CRH2512F390RE04Z 2512 390R 1% 2W high-power resistor exhibits balanced performance in terms of parameter performance, reliability verification, and cost control, making it a practical choice for industrial grade 390 ohm high-power resistor selection. By purchasing through authorized agents, we can ensure product quality and receive suitable technical support, providing a basic guarantee for the long-term stable operation of circuit design.