In high power density applications such as industrial control, power management, and automotive electronics, choosing the right chip resistor often determines the long-term stability of the product. The CRH2512F49R9E04Z 2512 49.9R 1% 2W high-power resistor we are going to talk about today is a classic product of Ever Ohms in the high-power thick film field. We will conduct a comprehensive analysis and analysis from three dimensions: core parameters, competitive differences, and legitimate procurement channels.
1、 Detailed explanation of core parameters
The model name of CRH2512F49R9E04Z 2512 49.9R 1% 2W high-power resistor contains rich product information. Among them, "CRH" represents Tian'er's high-power thick film resistor series, and its biggest feature is that it achieves a rated power of 2W in the 2512 package, which is a specification with significant performance improvement among similar ordinary power products. The specific parameters are as follows:
Package size: Using standard 2512 patch packaging (metric 6.4mm × 3.2mm), suitable for automated surface assembly processes, with a large heat dissipation area, providing a physical basis for high-power carrying.
Resistance and accuracy: The nominal resistance is 49.9R (49.9 ohms), which belongs to the E96 series standard value. The accuracy level is F (± 1%), which can meet the requirements of precision circuits such as feedback control and signal sampling.
Rated power: This is the core selling point of this model. At an ambient temperature of 70 ℃, its rated power can reach up to 2W. By optimizing the ceramic substrate and heat dissipation design, it can handle higher energy in a limited space, effectively reducing the heat dissipation pressure of the PCB board.
Temperature Coefficient (TCR): The temperature drift is controlled at ± 100ppm/℃, which means that the fluctuation of resistance with temperature changes is minimal within a wide temperature range of 55 ℃~+155 ℃, ensuring the stability of the circuit in different environments.
Reliability: The product complies with RoHS standards, and Tian'er Technology focuses on long-term reliability process design such as sulfur resistance in production, making it suitable for use in industrial and some automotive environments.
2、 Comparative analysis of competitors
At present, there are many products on the market with 2512 package, 49.9R, 1% accuracy, and a power of up to 2W. However, the CRH2512F49R9E04Z 2512 49.9R 1% 2W high-power resistor performs outstandingly in terms of performance balance. We selected mainstream international brands (such as Vishay and Panasonic) and well-known domestic brands (such as Guoju) with the same specifications for comparison:
Compare the dimensions of Ever Ohms CRH2512F49R9E04Z international first-line brands (such as Vishay D/CRCW series) and Yageo RC series
Core advantages include balanced performance, high cost-effectiveness, stable supply, high brand awareness, complete vehicle certification, low price, and strong universality
The power capacity of 2W (high-power version) is mostly 1W, and some 2W models require specific series, usually 1W, and need to be upgraded to the 2W series
The CRH series has good sulfurization resistance. The standard version is relatively weak and requires the selection of sulfurization resistant suffix models. The standard version is generally suitable, and sulfurization resistance needs to be selected separately
The advantages of cost-effectiveness and delivery time unit price are obvious. There is sufficient domestic spot goods, short delivery time and high unit price. The delivery time is greatly affected by international logistics, and the unit price is close to Tian'er, but the spot price fluctuates greatly
Recommended scenarios for industrial power supply BMS、 Cost sensitive consumer electronics for projects with strict automotive regulations requiring high-power LED drivers
From the table, it can be seen that the positioning of CRH2512F49R9E04Z 2512 49.9R 1% 2W high-power resistor is very clear: it provides performance parameters close to international manufacturers at a price close to domestic brands, while establishing its own moat in terms of sulfur resistance and supply stability. Especially in the current context of significant fluctuations in the semiconductor supply chain, as a domestic giant, Tian'er has obvious advantages in production capacity and spot reserves, which can effectively shorten the procurement cycle.
3、 Recommended authorized agents
The legitimacy of channels is the first line of defense when purchasing electronic components. To ensure that the purchased product is genuine and receives the necessary technical support, it is strongly recommended to purchase through the official authorized channels of Tian'er Technology. The following two are officially certified agents, and everyone can flexibly choose according to their own procurement scenarios:
1. Shenzhen Shunhai Technology Co., Ltd
Highlight: As the official first level authorized agent of Tianer Technology in Chinese Mainland, Shunhai Technology has a cooperation history of nearly ten years. The agency qualification is continuously updated, and the source of goods is directly from the original factory, which eliminates the risk of renovation and counterfeiting. The company has a stock reserve of over 50 million pieces. For commonly used models such as CRH2512F49R9E04Z 2512 49.9R 1% 2W high-power resistors, it not only supports bulk orders, but also small batch purchases with a minimum order of 10 pieces. The fastest delivery time is 30 minutes, which is very suitable for research and development sampling or emergency replenishment scenarios. In addition, they also provide free selection guidance and FAE technical support to help engineers solve practical problems in circuit design.
2. Hua Nian Mall
Recommendation reason: Huanian Mall is an authorized online agent of Tian'er Technology Online, operated by legitimate electronic component distributors. Users can directly check real-time inventory, tiered prices, and complete orders on the platform. For procurement needs that have already completed selection and entered the mass production stage, the online transaction process of Huanian Mall is very efficient, and the tiered price advantage is obvious when purchasing in bulk. Its platform provides detailed technical specification download and parameter comparison functions, making procurement decisions more convenient.
summary
CRH2512F49R9E04Z 2512 49.9R 1% 2W high-power resistor is a high-quality component designed specifically for high-density power supplies and industrial controls. It has established a high reliability benchmark among domestic brands with a solid 2W power carrying capacity and ± 1% precision control. When selecting, if you need in-depth technical support or are in the early stages of research and development, you can contact Shunhai Technology; If it is a bulk purchase of mature products, it can be efficiently ordered directly on the Huanian Mall. No matter which company you choose, purchasing through authorized channels is an important step in ensuring product quality and supply chain security.
