(TPUME) SMD High Frequency Power Inductors. (TPUDF) SMD unshielded Wirewound Inductors. 
(TPUD) SMD Low-Profile Wirewound Inductors. (TPSDBL) SMD Backlight Inductor (High Voltage Inductor). (TPSDS) Low-DCR Low-Profile Wirewound Inductor. (TPSH) SMD Low-Profile Low-DCR Power Inductor. (TPSTX) SMD Compact Power Toroidal Inductors. (TPSPA) SMD High Saturation Power Inductor. In the next article, we will discuss selecting an inductor for a given circuit/application. Try to figure out how different types of inductors have different technical specs to suit their intended applications. Take a look at different types of inductors manufactured by them and compare datasheets of different inductor types. Try to find out major manufacturers of inductors from various online market places. For specific applications or circuit requirements, other types of inductors can be preferred. The inductors used in switching power supplies and DC-DC converters should have a high DC rating.įor most of the general-purpose applications, air coils, toroids, pot cores, chip inductors, molded or dipped inductors are used. Similarly, inductors used for coupling applications also have high inductance and high SFR. The inductors used in filter circuits have high inductance, high SFR as well as high DC rating. The inductors designed for high-frequency applications have low-value inductance, low DC current rating, low DC resistance, and high-quality factor, and SFR. Obviously, different types of inductors are designed to suit specific applications. The air coils are widely used in RF circuits, FM receivers, SMPS, UPS, RF power amplifiers, RF communication, and radio-controlled toys. Surface mount versions of the air coils are also available. The circuits processing ultra-high frequency usually needs air coils with a single loop of wire. As the frequency of the signal increases, the value of required inductance decreases, making air coil inductors suitable for high-frequency applications. Because non-magnetic cores do not easily heat up when the high current flows through the coil, these inductors have a high Q-factor as there is minimal loss of energy by the core in the form of heat. As there is no magnetic core, they do not suffer from operating losses due to the hysteresis, eddy current, or distortion common in magnetic cores. 
These inductors have low nominal values of inductance but offer a high-quality factor. These are solenoidal coils that use a non-magnetic core and can have a single loop of wire to large coils depending upon the range of frequency they are designed for. Some other widely used inductor types are presented here.Īir Coils – Air coils are the simplest inductors. We have already discussed some of the inductor types, such as solenoidal coils, toroids, pot cores, and transmission line inductors. So, choosing an inductor is quite simple compared to resistors or capacitors (which have a lot of options for any given application). Manufacturers supply inductors for application-specific categories including RF chokes, power, high current, and high-frequency. These specifications are useful in determining the efficiency of an inductor in a circuit.
In the previous tutorial, we learned about the different properties and characteristics of Inductors.
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