SRR1280-390M

The SRR1280-390M is a fixed surface-mount inductor designed for high-current power supply applications. Manufactured by Bourns, this component belongs to the SRR1280 series of shielded power inductors. It provides a nominal inductance of 39µH measured at 1 kHz with a 1 V test signal.

Electrical performance centers around a saturation current of 3.1A and a continuous current rating of 3.2A. The inductance tolerance is specified at ±20%, ensuring predictable behavior in filtering and energy storage circuits. The device utilizes a shielded magnetic structure to minimize electromagnetic interference and improve thermal stability during operation.

This component is optimized for direct soldering onto printed circuit boards using standard surface-mount technology processes. Its compact footprint supports space-constrained designs while maintaining reliable electrical characteristics under load. Engineers utilize this inductor in DC-DC converter topologies, point-of-load regulation stages, and general-purpose power distribution networks where controlled impedance and current handling are required.