YFF21PC1E474M Filters

Series:	YFF-P
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Capacitance:	0.47µF
Tolerance:	±20%
Voltage - Rated:	25V
DC Resistance (DCR) (Max):	--
Operating Temperature:	--
Insertion Loss:	--
Temperature Coefficient:	--
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	0805 (2012 Metric), 4 PC Pad
Size / Dimension:	0.079" L x 0.049" W (2.00mm x 1.25mm)
Height (Max):	0.039" (1.00mm)
Thread Size:	--

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Feed Through Capacitors

A feed through capacitor is a form of electrical capacitor comprising two or more concentric electrically conductive or inert sheaths. It is primarily used as a voltage divider, for impedance matching, and for equalizing or filtering a wide frequency range between some two points. YFF21PC1E474M is a typical feed through capacitor and its application field and working principle will be discussed here accordingly.

Application Field

YFF21PC1E474M capacitor is often used in low-voltage and medium-voltage applications. The cap is typically utilized in alternating current (AC) supply circuits, helping maintain the voltage at specific frequencies. Common applications for the YFF21PC1E474M include modems and computers, UPS systems, AC line filters, and TV sets.

Working Principle

The YFF21PC1E474M capacitor is mainly composed of two metal terminals, a ceramic dielectric, and an outer shell. Its unique design helps the capacitor transfer DC voltages while blocking out current in the AC range that includes high-frequency noise. The capacitor works in essentially the same way as other capacitors, creating an imbalance between its terminals through the dielectric that separates them. The higher the capacitance of the capacitor (measured in farads), the more charge it can store.When a capacitor is connected across a voltage source, it accumulates charge on each plate with positive charge on one plate and negative charge on the other. This atn-i creates the potential difference across the plates, which determines the magnitude of the voltage generated by the capacitor.Since the YFF21PC1E474M is a feed through capacitor, it is designed to pass current through both its terminals in the reverse direction, meaning that DC voltages can be transferred through the capacitor without any loss or significant voltage change. This makes the YFF21PC1E474M ideal for applications that require high voltage transfer capacity.

Conclusion

As mentioned, YFF21PC1E474M is a feed through capacitor, making it ideal for the applications that require high voltage transfer capability. Its design, featuring two metal terminals, ceramic dielectric, and an outer shell, helps the capacitor Transfer DC voltages without any loss or noticeable voltage change. Common applications for the YFF21PC1E474M include modems and computers, UPS systems, AC line filters, and TV sets.

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