The 1156AS-4R7M is a shielded power inductor manufactured by Toko America Inc. It is designed for use in DC-DC converters and power supply circuits, providing energy storage and filtering to improve efficiency and reduce noise. The '4R7M' indicates an inductance value of 4.7μH (microhenries) and a tolerance of ±20%.

Applications:

• DC-DC converters
• Power supply circuits
• Voltage regulators
• Filtering applications
• Energy storage

Features:

• Shielded construction
• High current capability
• Low DC resistance (DCR)
• Compact size
• Surface mount design

Benefits:

• Provides efficient energy storage in power supply applications.
• Reduces electromagnetic interference (EMI) due to its shielded design.
• Minimizes power loss with its low DC resistance.
• Enables compact and space-saving circuit designs.
• Offers reliable performance in demanding environments.

Additional Details:

The shielded construction of the 1156AS-4R7M inductor is crucial for minimizing electromagnetic interference, making it suitable for use in sensitive electronic devices. The high current capability allows it to handle significant power levels without saturating. The low DC resistance reduces power loss, improving the overall efficiency of the circuit. The inductance value is critical for determining the operating frequency and performance of the DC-DC converter or power supply. Proper selection of the inductor's characteristics is essential to optimize circuit performance and ensure reliable operation. The datasheet provides detailed specifications, including inductance tolerance, saturation current, DC resistance, and operating temperature range.

In summary, the 1156AS-4R7M is a high-quality shielded power inductor that offers efficient energy storage, low EMI, and reliable performance in various power supply and DC-DC converter applications.