The SPB-305 is a high-quality switch mode power supply inductor and part of one of our bestselling series online. Its small size and low weight make it ideal in countless applications in household goods and industrial settings, as well as in tools and equipment. From microwave ovens and air cleaning equipment, to welders and LED handheld lights, this type of switch mode power supply inductor offers the obvious solution.
The SPB-305 is also known as a filter inductor, due to its ability to filter the output waveform signals of switching supply circuits.
This printed circuit part is rated at 175µH @ 7.0ADC and has a maximum DCR of 0.048 Ω. Its ferrite core has high flux density saturation characteristics and promotes inductance stability. It is also coated with epoxy paint for durability. The SPB-305 therefore demonstrates little change in inductance from 0DC to its rated DC current. The SPB-305 may also have use where SMPS frequencies reach up to 250KHz, depending on the application.
To allow for additional securing as required, the core benefits from a centrally located through-hole. Use a non-metallic #4 screw to mount the part to the printed circuit board.
The dimensions of the SPB-305 are as follows:
- Core diameter: 0.955” / 24.26 mm.
- Core height: 0.975” / 24.77 mm.
- Radial leads center-to-center dimension: 0.775 inches / 19.69 mm.
- Radial leads extending 0.6875” / 17.46 mm to 0.8125” / 20.64 mm.
- Leads tinned to within 0.063” / 1.6 mm from core exit.