SFAPI-470K-UL中文资料bel数据手册PDF规格书

The SFAPI Series is an entirely new line of fixed axial leaded power

inductors. When the current flowing through the coil changes, the timevarying

magnetic field induces a counter electromotive force in the

conductor which opposes the change in current that created it. As such,

inductors oppose any changes in current that pass through them. In power

supplies, an inductor’s role is to prevent sudden changes in current used.

Working alongside a capacitor, an inductor prevents sudden changes in the

power supply’s output voltage and current.

Due to the ferrite core material grade, these fixed power inductors have

high permeability, increased electrical resistivity, and low eddy current

losses such that their characteristics make them suitable for multiple highfrequency

applications. Power Inductors are used in variety of functions

including differential mode filtering, as output chokes and energy storage

devices in power supply topologies such a buck, boost, SEPIC and Cuk etc.

General Features

• High current choke

• Wide inductance range

• High saturation ferrite core

• UL rated shrink tube covering

• Low-cost power inductor

• Available in Tape & Reel packaging

Specifications

• Wide inductance range 27 μH to 4.7 mH (1.28 A ~ 0.1 A)

• High current choke

• High saturation ferrite core

• Operating temperature range: -40 °C to +125 °C

• Storage temperature component: -40 °C to +125 °C

Applications

• Switching regulators

• Power Amplifiers, inverters and converters

• Power Supplies (buck, boost, SEPIC, Cuk)

• SCR and Triac controls

• Speaker crossover networks

• RFI suppression filters / RFI tuning coils

• Various other applications (i.e. snubber circuits etc.)