DFEH7030D-4R7M=P3

DC Resistance (DCR):	41 mOhm Max
Height - Seated (Max):	0.118" (3.00mm)
Size / Dimension:	0.276" L x 0.260" W (7.00mm x 6.60mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 155°C
Ratings:	AEC-Q200
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	DFEH7030D
Shielding:	Shielded
Current - Saturation:	5.6A
Current Rating:	4.2A
Tolerance:	±20%
Inductance:	4.7µH
Material - Core:	Iron Powder
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Fixed inductors are the components of electronic circuits that are characterised by their coil inner and outer connection points, and by its ability to induct or store electrical energy in a magnetic field for a certain period of time. DFEH7030D-4R7M=P3 is a type of fixed inductor from Yageo, a popular electronic component manufacturer in Taiwan. This fixed inductor is excellent in terms of environmental strengh and long-term reliability performances and it is characterised by its low height and large current capacity. This inductor is typically used in networks that require stable input and output currents even if subject to rapid current changes, for example in a step-down or buck converter. Its datasheet values for DC resistance and inductance are 0.8 Ohm and 4.7 mH, respectively, while the current handling capacity is 6.6 Amps with a 0.98 mm maximum height. DFEH7030D-4R7M=P3 is most suited for current filtering, noise reduction and DC to DC converters appliations, where its compact size and reliability can offer great advantages. This type of fixed inductor, as with all passive components, requires external circuitry for the full device to work properly. The input and output of the DFHE7030D-4R7M=P3 derived from a stepdown or buck converter are compared by two differential amplifiers, set up with offset nulling capabilities to ensure accurate range of current flows. This inductor is also sensitive to overcurrents and overvoltages, which must be kept within its limits to ensure proper operation. Overvoltage protection is typically handled by a comparator aided by a sense resistor and, if necessary, by an external circuit like a zener diode between driver and inductor. Another important application field of the DFHE7030D-4R7M=P3 relates to noise reduction and EMI filtering. In this case, it works together with ceramic capacitors to deliver a high frequency filtering that discriminates against undesired AC or interference signals. The inductor serves to reject high frequency signals, while the capacitor acts as a low pass filter. In some circuits, an RC network is formed by the addition of a resistor in parallel with the array of inductors and capacitors. The resistor\'s main duty is to eliminate ac noise and switch harmonic frequencies, hence providing effective filtering. Finally, the DFHE7030D-4R7M=P3 has specific operating conditions, which are summarised in its datasheet as follows: a temperature range of -45 to +85°C, a maximum ripple current ratio of 4.2 ARMS and an equivalent series quantum resistance of 0.62 Ohm. Overall, the DFHE7030D-4R7M=P3 fixed inductor is a useful and reliable component for specific DC current-related networks, noise reduction and EMI filtration applications. Its rated values can be found in its datasheet and, if necessary, additional circuitry may be added to operate it in more demanding environments.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description