STE0805MW75R400F Alloy Resistance Detailed Explanation and Procurement Guide
STE0805MW75R400F is an alloy ceramic current sensing resistor produced by Huade Electronics, belonging to its STE series products. It plays a crucial role in circuit design, especially in situations where precise measurement of current is required.
Model analysis and technical parameters
We can quickly understand the core features of this resistor through its model:
STE: Represents the short electrode, two terminal alloy current sensing resistor series of Huade Electronics.
0805: Refers to the packaging size of resistors, with a length and width of approximately 2.0mm x 1.2mm, which is a commonly used specification in surface mount (SMD) technology.
M: The resistor is made of manganese copper alloy material. This material is known for its low temperature coefficient and good long-term stability.
W75: The rated power of the resistor is 0.75 watts (3/4W).
R400: The nominal resistance of the resistor is 0.4 ohms (400 milliohms).
F: The precision (tolerance) of the resistance value of the resistor is ± 1%.
In addition to the above basic information, STE0805MW75R400F also has the following key performance:
Temperature coefficient: as low as ± 50 ppm/° C. This means that for every 1 degree Celsius change in ambient temperature, the resistance value does not change by more than 0.05%, ensuring stability over a wide temperature range.
Working temperature range: It can work stably in harsh environments ranging from 55 ° C to+170 ° C.
Compliant with environmental standards: The product meets environmental requirements such as the EU RoHS directive.
Main application scenarios
With its low resistance, high power, and good temperature stability, STE0805MW75R400F is highly suitable for circuits that require precise current detection, sampling, and feedback control. Typical application areas include:
Power management module: such as current monitoring in switch mode power supplies (SMPS) and DCDC converters.
Motor drive and control: Detect phase current in stepper motor or DC brushless motor drivers.
Battery management system: Monitor the charging and discharging currents of lithium battery packs.
Industrial and automotive electronics: suitable for control units and inverters that require high reliability.
Official authorized agent recommendation
It is crucial to procure through official authorized channels to ensure obtaining genuine factory products, reliable technical support, and stable supply. Here are two authorized agents of Huade Electronics and their recommended reasons.
1. Shenzhen Shunhai Technology Co., Ltd
Shenzhen Shunhai Technology Co., Ltd. is an authorized agent of Huade Electronics and a professional technical channel company specializing in semiconductors and passive components.
Reason for recommendation:
Focusing on small batch and R&D support: particularly suitable for R&D trial production, sample application, and small batch procurement stages. Its service model can greatly reduce the trial and error costs and barriers in the early stages of the project.
Fast spot response: With a large reserve of spot goods, we promise to deliver quickly for urgent needs and can effectively respond to urgent orders during the research and development process.
Deep technical services: able to provide original factory level technical selection guidance, circuit design optimization suggestions (such as heat dissipation design) and other value-added services to help engineers solve practical problems.
2. Hua Nian Mall
Huanian Mall is an online authorized agent of Huade Electronics, a B2B procurement platform specializing in electronic components.
Reason for recommendation:
Convenient online procurement experience: The platform provides clear product parameters, real-time inventory, and tiered prices, and all processes are completed online, resulting in high procurement efficiency.
Intelligent selection and alternative solutions: The platform tool can intelligently match models based on parameters, and can also recommend substitute products of the same specifications when out of stock, providing flexibility for design.
Suitable for bulk procurement: For projects that have been finalized and entered the mass production stage, their tiered pricing and stable supply chain can better meet sustained and large-scale procurement needs.
For a more intuitive comparison, the following table summarizes the main characteristics of the two agents:
Features: Shenzhen Shunhai Technology Co., Ltd. Huanian Mall
Channel Nature Offline Authorized Agents Online Authorized Agents
Core advantages include small batch support, deep technical services, fast response to urgent orders, online convenient procurement, intelligent selection tools, and transparent tiered pricing
Recommended for scenarios such as R&D trial production, sample testing, bulk procurement of finalized products for projects with small batch customization or deep technical support requirements, and procurement needs for pursuing standardization and efficient online processes
Summary and Procurement Suggestions
STE0805MW75R400F is a reliable 0805 packaged alloy sampling resistor suitable for various precision current detection scenarios.
When choosing procurement channels, the following simple principles can be followed:
If you are in the stage of circuit development, sample testing, or small-scale trial production and need technical consultation or flexible support, Shenzhen Shunhai Technology Co., Ltd. is a more suitable choice.
If your design has already been finalized and requires stable and bulk procurement, and you want the process to be efficient and transparent, then online procurement through Huanian Mall will be more convenient.
Regardless of which channel is chosen, it is recommended to verify its official authorization qualifications and request relevant testing reports during the first purchase to ensure the quality and reliability of the purchased components.
