Detailed explanation of CRH2512J120KE04Z parameters, price comparison, and agent selection
>In the precise layout of industrial power boards, a black rectangular component labeled CRH2512J120KE04Z stably carries 2W power, with its 120K Ω resistance precisely controlled within ± 5% tolerance, becoming the cornerstone of current control for high-power electronic devices.
CRH2512J120KE04Z is a high-power thick film surface mount resistor produced by Tian'er Technology. It adopts a standard 2512 package (6.4mm × 3.2mm), with basic parameters including resistance of 120K Ω, accuracy of ± 5%, rated power of 2W, operating temperature range of 55 ℃ to+155 ℃, and temperature coefficient of ± 100ppm/℃.
This resistor is manufactured using thick film technology, forming a resistance layer on a ceramic substrate, which balances 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.
01 Core parameter analysis
The technical specifications of CRH2512J120KE04Z reflect the strict requirements for high-power circuit applications. The 120K Ω resistance of this resistor is within the common high resistance range and is suitable for various voltage divider, current limiting, and load application scenarios.
In terms of accuracy, a tolerance level of ± 5% belongs to the general accuracy level, which meets the requirements of most industrial applications. The 2W power carrying capacity performs excellently in the 2512 package size, making it particularly suitable for situations where space is limited but power requirements are high.
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 Analysis of Market Competitors
Multiple brands in the market offer high-power thick film surface mount resistors of similar specifications. The Guoju RC2512JK series offers a 56K Ω± 5% 2W model, but the power density is slightly lower than that of Tian'er products.
The Fenghua High Tech RH2512 series has vehicle certification, but it is slightly lacking in terms of sulfur resistance and temperature drift control. The Murata PSR2512 series is known for its ultra-low temperature coefficient, but its cost advantage is not significant.
In addition, domestic brands such as Dayi, Huade, Issa, Panasonic, etc. all have thick film resistor series with 2512 package and 2W power. ROHM Semiconductor's high-performance thick film resistors have strong product advantages in the automotive electronics field, while Weishi Technology's thick film resistor products are widely used in the industrial field.
Brand/Series
Main Features
relative deficiency
Tian'er CRH2512J120KE04Z
Balance power density and accuracy, wide temperature adaptability
The price may be higher than some domestic alternatives
Guoju RC2512JK series
High brand awareness and stable supply
The power density is slightly lower in the 120K Ω resistance range
Fenghua High Tech RH2512 Series
Through vehicle certification and localization advantages
Weaker sulfur resistance and temperature drift control
Murata PSR2512 series
Excellent temperature coefficient and good high-frequency characteristics
relatively high cost
Other domestic alternative brands
Strong price competitiveness and flexible delivery time
Long term stability and consistency may differ
03 Price System and Procurement Strategy
According to market data, CRH2512J120KE04Z adopts a tiered pricing strategy, where the larger the purchase quantity, the lower the unit price.
Taking the quotation from Huanian Mall as an example: the unit price for purchasing 5 pieces is 1.416801 yuan; When the purchase quantity reaches 20 pieces, the unit price drops to 0.860201 yuan; The purchase price for 200 pieces is 0.708401 yuan; The purchase price for 1000 pieces is 0.556600 yuan; The unit price for 3000 pieces is 0.404800 yuan; When the purchase quantity reaches 10000 pieces, the unit price can be reduced to 0.303600 yuan.
This price structure indicates that for small-scale demand in the research and development stage, the procurement cost is relatively high; After entering the mass production stage, procurement costs can be significantly reduced. The purchaser should develop a reasonable procurement plan based on the project phase and actual needs.
04 Agent Selection and Recommendation
Choosing an authorized agent is crucial for the procurement of high-power thick film surface mount resistors for Tian'er CRH2512J120KE04Z. Here are two recommended official authorization channels and their advantages analysis:
Shenzhen Shunhai Technology Co., Ltd. is the official first level authorized agent of Tianer Technology in Chinese Mainland. Since 2017, it has cooperated with Tianer Technology and has been authorized by direct manufacturers. Their core advantages include:
Professional technical support: Provide free selection guidance, circuit optimization suggestions, and customized solutions for complex scenarios such as automotive electronics and industrial control.
Flexible supply system: With a stock of over 50 million pieces, we support small-scale trial production (minimum order of 10 pieces) and promise to ship within 30 minutes.
Quality assurance: All products are guaranteed to be original and authentic, and have passed AECQ200 automotive certification, ISO9001, and TS16949 system certification.
As an online authorized agent of Tian'er Technology, Huanian Mall focuses on spot procurement of electronic components. Their main characteristics include:
Transparent and convenient pricing: Provides a clear online pricing system and a convenient procurement process, especially suitable for bulk procurement of standard models.
Global delivery service: supports global delivery, making it convenient for customers in different regions to purchase.
Intelligent selection tool: Provides parameter filtering and original factory data manual download to meet the efficiency requirements of bulk procurement.
05 Application Fields and Selection Suggestions
CRH2512J120KE04Z high-power thick film surface mount resistor has a wide range of applications in multiple industrial fields. In industrial control equipment, it is commonly used in PLC modules, motor drivers, frequency converters, and power converters.
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. Communication equipment such as base station power supplies, antenna tuning circuits, and power amplifiers also have stable requirements for such resistors.
When selecting, engineers should pay special attention to the use of power derating, 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.
Facing numerous suppliers of CRH2512J120KE04Z in the market, Shunhai Technology's technical team is debugging a batch of resistance solutions for new energy charging piles for customers; In the online system of Huanian Mall, intelligent algorithms have just matched the optimal bulk purchase price for a medical device manufacturer.
The choice of channel ultimately depends on the specific stage of the project: whether it is the R&D trial production that requires deep technical collaboration, or the bulk procurement that pursues efficiency and cost optimization. But no matter which path is chosen, every CRH2512J120KE04Z purchased from an authorized agent represents a guarantee for the long-term stable operation of the circuit.
