SRP201210V Shielded Power Inductors

Introduction

Bourns’ SRP201210V series is a low-profile, magnetically shielded power-inductor family designed for high-current power circuitry where board height and magnetic-field containment are important. Using a metal alloy powder core, the series combines a maximum 1.0 mm height with inductance values from 0.24 µH to 0.47 µH.

What it does

Power inductors store and release energy in switching power circuits, helping manage current in compact DC-DC conversion stages. The SRP201210V series provides low inductance options suited to high-current designs, with RMS current ratings from 4.7 A to 5.9 A and saturation-current ratings from 5.5 A to 7.6 A.

Its magnetically shielded construction is intended to reduce magnetic-field radiation compared with an unshielded inductor. The metal alloy powder core supports the series’ high-current focus, while the specified typical self-resonant frequency of greater than 120 MHz and typical Q of 25 provide useful electrical context for integration into switching designs.

The devices operate across a -55 °C to +125 °C temperature range and are available with ±20% inductance tolerance.

Applications

The combination of low profile, shielding, and high-current capability makes the series relevant for compact power stages in:

• Wearable devices
• Smartphones and tablets
• IoT modules
• Portable electronic equipment
• Solid-state drives
• High-current point-of-load DC-DC converters where a 1.0 mm maximum component height is beneficial

Design considerations

The SRP201210V series is limited to 0.24 µH through 0.47 µH options, so the required switching-converter topology, switching frequency, ripple-current target, and transient behavior should be considered when selecting an inductance value.

Designers should also account for both current ratings: RMS current capability is specified from 4.7 A to 5.9 A, while saturation current ranges from 5.5 A to 7.6 A depending on the selected part. Temperature conditions should remain within the stated -55 °C to +125 °C operating range.

Magnetic shielding can help reduce field radiation in dense assemblies, but placement relative to sensitive circuitry and other magnetic components remains an integration consideration. The 1.0 mm maximum height is advantageous for thin products, while requiring appropriate PCB layout and mechanical clearance planning.

Availability and further information

Further product details are available through the Mouser Electronics source link and the SRP201210V datasheet link provided on this page.