SRN5020TA SRN5020TA Automotive Grade Inductors

SRN5020TA Automotive Grade Inductors from Bourns represent a critical category of passive components designed to meet the stringent requirements of the automotive industry. These inductors are essential for various circuit functions, including power conversion, filtering, and energy storage, where reliability, stability, and performance under harsh conditions are paramount. Manufactured by Bourns, a global leader in electronic components, the SRN5020TA series ensures high quality and consistent operation in demanding automotive environments.

Key Specifications

• Size: 5 x 5 x 1.8 mm
  This compact dimension signifies a highly space-efficient component, crucial for modern automotive electronics where miniaturization is a continuous trend. The small footprint allows designers to integrate these inductors into densely packed PCBs, contributing to smaller, lighter, and more efficient electronic control units (ECUs) and other modules without compromising performance.
• Current Range: 0.7 – 4.1 A
  The broad current handling capability from 0.7 to 4.1 Amperes indicates the versatility of these inductors across various power management applications. This range allows the SRN5020TA to be used in circuits requiring moderate to relatively high current flow, such as DC-DC converters for infotainment systems, LED lighting drivers, or sensor power supplies, ensuring stable operation without saturation or excessive heat generation.
• Component Type: Automotive Grade Inductors
  Designation as ‘Automotive Grade’ is a critical attribute, signifying that these inductors are specifically engineered and tested to withstand the extreme conditions found in vehicles. This includes wide operating temperature ranges, resistance to vibration and shock, and compliance with automotive industry standards like AEC-Q200, ensuring long-term reliability and safety in critical automotive systems.
• Inductance Range: 1 – 47 µH
  The wide inductance range from 1 to 47 microhenries provides significant flexibility for circuit designers. This allows the selection of the precise inductance value required for specific filtering, energy storage, or resonant circuit applications. A broader range means these inductors can support various switching frequencies and current ripple requirements in power supplies, signal conditioning, and RF circuits within automotive systems.

Features and Benefits

• AEC-Q200 Qualified: Ensures high reliability and performance in harsh automotive environments, meeting the rigorous standards for stress tests and quality.
• Compact Footprint: The small 5x5mm size enables space-saving designs, critical for the miniaturization trend in automotive electronics.
• Wide Operating Temperature Range: Designed to function flawlessly across the broad temperature variations experienced in vehicle applications, from extreme cold starts to high under-hood temperatures.
• High Saturation Current: Maintains stable inductance values even under high current loads, preventing performance degradation in power conversion circuits.
• Low DC Resistance: Minimizes power losses and improves overall system efficiency by reducing heat generation within the component.

Typical Applications

• Automotive Infotainment Systems: Used in power supply circuits for navigation units, multimedia players, and display drivers, where stable power delivery and EMI filtering are essential for clear audio and video.
• LED Lighting Modules: Critical for buck/boost converters in automotive LED headlights, taillights, and interior lighting, ensuring efficient and stable current regulation for optimal LED performance and longevity.
• Engine Control Units (ECUs): Integrated into power management sections of ECUs to filter noise and stabilize voltage rails for microcontrollers and sensors, contributing to precise engine operation and emissions control.
• Advanced Driver-Assistance Systems (ADAS): Essential for power conditioning in radar, lidar, and camera modules, providing reliable power to sensitive sensors and processors that enable features like adaptive cruise control and lane-keeping assist.
• Electric Power Steering (EPS) Systems: Utilized in the motor control circuitry to manage current and filter switching noise, ensuring smooth and responsive steering assistance.

In summary, the SRN5020TA series of Automotive Grade Inductors from Bourns offers a robust and reliable solution for demanding automotive electronic applications. Its compact size, wide current and inductance ranges, and AEC-Q200 qualification make it an ideal choice for designers seeking high-performance passive components. This component is stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt availability for your projects.

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