SRN4030HA SRN4030HA Automotive Grade Inductors

SRN4030HA is a series of high-performance Automotive Grade Inductors manufactured by Bourns, a globally recognized leader in electronic components. These inductors are specifically designed to meet the rigorous demands of automotive electronics, ensuring reliable operation in harsh environments. As passive components, inductors play a crucial role in various circuits by storing energy in a magnetic field when current flows through them. They are essential for filtering, energy storage, and impedance matching in power conversion applications, making them indispensable in modern vehicle systems. The SRN4030HA series offers a robust solution for designers seeking compact, efficient, and highly reliable inductive components for their automotive designs.

Key Specifications

The SRN4030HA series boasts several key specifications that underscore its suitability for automotive applications. The ‘Size’ of 4 x 4 x 3 mm indicates a compact footprint, which is critical for space-constrained automotive electronic control units (ECUs) and modules. This miniature dimension allows for higher component density on PCBs, contributing to smaller and lighter overall systems. The ‘Current Range’ of 0.55 – 5.5 A signifies the operational current capabilities of these inductors. This broad range ensures versatility, allowing them to be used in various power management circuits, from low-power sensing applications to more demanding power supply rails within a vehicle. The ‘Component Type’ is explicitly defined as Automotive Grade Inductors, which means they are qualified to AEC-Q200 standards, guaranteeing their performance and reliability under the extreme temperatures, vibrations, and electrical stresses common in automotive environments. Finally, the ‘Inductance Range’ of 1 – 100 µH provides a wide spectrum of inductance values. This flexibility enables engineers to select the precise inductance required for specific filtering, energy storage, or resonant circuit applications, optimizing performance for different power conversion topologies or signal conditioning needs.

Features and Benefits

• AEC-Q200 Qualified: The SRN4030HA series is qualified to AEC-Q200 standards, ensuring high reliability and performance in the demanding automotive environment, including extreme temperatures, humidity, and vibration.
• Compact Footprint: With a size of 4 x 4 x 3 mm, these inductors offer a small form factor, enabling higher component density on PCBs and contributing to miniaturization of automotive electronic modules.
• Wide Inductance Range: Offering an inductance range from 1 to 100 µH, the series provides design flexibility to meet diverse power management and filtering requirements across various automotive applications.
• High Current Handling: Capable of handling currents from 0.55 to 5.5 A, these inductors are suitable for a broad spectrum of power conversion and filtering tasks, from low-power auxiliary systems to more robust main power rails.
• Shielded Construction: The shielded design of these inductors minimizes electromagnetic interference (EMI) radiation, which is crucial for maintaining signal integrity and preventing interference with other sensitive electronic components within a vehicle.

Typical Applications

The SRN4030HA Automotive Grade Inductors are highly versatile and find application in numerous automotive systems. One primary use case is in DC-DC converters for various electronic control units (ECUs), such as engine control, body electronics, and infotainment systems. Here, they are critical for energy storage and filtering, ensuring stable power supply rails for sensitive digital and analog circuitry. Another significant application is in LED lighting systems, both for interior and exterior vehicle lighting. Inductors help regulate current and provide efficient power conversion for LED drivers, contributing to longer LED lifespan and consistent illumination. They are also widely used in automotive infotainment and telematics systems, where they perform filtering and power conditioning tasks to ensure clear audio, reliable data transmission, and stable operation of navigation and communication modules. Furthermore, these inductors are essential in advanced driver-assistance systems (ADAS), including radar, camera, and ultrasonic sensor modules. In ADAS, they help filter power lines and manage energy for precise sensor operation and data processing, which is vital for vehicle safety and autonomous driving features. Lastly, the SRN4030HA series can be found in electric power steering (EPS) systems and other motor control applications, where they contribute to efficient power delivery and noise reduction for motor drivers. In summary, the SRN4030HA series from Bourns offers a robust and reliable solution for a wide array of automotive electronic applications. Its AEC-Q200 qualification, compact size, and broad electrical specifications make it an ideal choice for demanding designs. Cirkit Electro Components, Mumbai, proudly stocks and ships the SRN4030HA and other Bourns components across India, ensuring prompt delivery for your critical projects.

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