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Home > About Us > Success Stories > Rod Inductor > Gujing 45A High-Current Rod Inductor Matches Automotive Fan Brushless Motor Project
Gujing 45A High-Current Rod Inductor Matches Automotive Fan Brushless Motor Project
Mar 12, 2026Intelligent Browse: 76

Recently, Gujing Electronics partnered with an automotive air conditioning controller manufacturer and successfully provided a solution featuring the GR3008-4R5NB rod-type inductor for the company’s new project involving brushless motors for automotive fans. The solution has received high praise from the client for its precise parameter matching, outstanding product performance, and efficient technical support.


Project Background: New Project for Automotive Fan Brushless Motors—Urgent Need to Select a 45A Bar-Type Inductor

This client is a company specializing in automotive air conditioning controller products. In the R&D phase of its new project for automotive fan brushless motors, the company urgently needs to select an inductor capable of handling a high current of 45A. Due to strict space constraints on the circuit board and a lack of other reference parameters, the client has set extremely high standards for the comprehensive capabilities of inductor suppliers.

It is worth noting that this project represents the client’s flagship product for the future, with a substantial volume of inductors required. Consequently, the client urgently needs an inductor manufacturer capable not only of large-scale production but also of providing professional and efficient technical support for close collaboration.



Solution: Gujing GR3008-4R5NB Rod-Type Inductor, Precisely Tailored to Customer Needs

Upon receiving the customer’s technical inquiry, Gujing’s technical team, drawing on its extensive experience, immediately recommended the company’s rod-type inductor: the GR3008-4R5NB.

This product features the following notable characteristics:

1. Outstanding Performance: Utilizing QZ wire winding, the resistance is as low as 2.3–2.38 mΩ, effectively reducing conduction losses; the inductance is stable at 4.31–4.52 μH, meeting circuit design requirements.

2. Compact Design: With a diameter of just 12.34 mm, a length of 29.92 mm, and a lead length of 13.49 mm, the product perfectly fits the customer’s limited PCB layout space.

3. High Reliability: Designed specifically for automotive electronics applications, it withstands harsh operating environments to ensure long-term stable operation.

During the sample testing phase, Gujing immediately arranged production and shipment. The customer was highly satisfied with the preliminary test results; the GR3008-4R5NB performed excellently in terms of current, inductance, dimensions, and temperature rise, fully meeting project requirements.



Core Strengths: 23 Years of Dedication to the Automotive Electronics Industry, Enabling Precise Product Selection and Technical Support

It is no coincidence that Gujing’s inductor products can quickly and accurately meet customer needs. This is primarily due to Gujing Electronics’ 23 years of continuous technical expertise and extensive project experience in the automotive electronics sector.

The company has successfully provided inductor products and technical solutions to numerous automakers, including BYD, Geely, and NIO, and possesses a deep understanding of the technical nuances and reliability requirements of automotive electronic systems. As a result, when faced with challenges such as “45A current” and “space constraints” raised by customers, Gujing’s technical team was able to quickly draw upon past experience and accurately recommend the GR3008-4R5NB as the optimal solution.



Elevating Partnerships: Moving Beyond the Role of Supplier to Become a Trusted Technical Partner for Customers

Gujing Electronics firmly believes that an outstanding supplier is not merely a manufacturer of products, but should also serve as a strong technical backbone supporting customers throughout their R&D journey. From initial technical discussions and product selection to the rapid provision of samples and testing support, the Gujing team maintains close collaboration with customers to ensure the swift progress of projects. Gujing demonstrates not only efficient product supply capabilities but also a “one-stop technical service” capability characterized by deep engagement and collaborative problem-solving.

This successful collaboration with a customer in the automotive air conditioning controller sector once again validates Gujing Electronics’ robust product capabilities and technical service advantages in the automotive inductor sector. Gujing will continue to uphold the philosophy of “technology first, customer-centric,” providing high-quality inductor products and solutions to clients across a wider range of industries.