GSRH4D28-3R3N – GANG SONG

The GSRH4D28-3R3N is a surface-mount, shielded power inductor manufactured by GANG SONG Electronics. This component features a 4mm x 4mm footprint with a height of 2.8mm. The “3R3” designation indicates a nominal inductance of 3.3 µH. The “N” suffix likely denotes a specific tolerance or termination material, but without further datasheet information, this remains unspecified. Construction utilizes a ferrite drum core for efficient energy storage and low core loss at higher frequencies. Shielding is achieved through a closed magnetic path, minimizing electromagnetic interference (EMI). Compliance with “GANG SONG ELEC 09 ROHS” signifies adherence to Restriction of Hazardous Substances (RoHS) directives, indicating the absence of restricted materials such as lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), and polybrominated diphenyl ethers (PBDE). It is intended for DC-DC converter applications and power supply filtering where space constraints are a factor.