ECH-U1H391JB5 Capacitors

Operating Temperature:	-55°C ~ 125°C
Features:	--
Ratings:	--
Applications:	General Purpose
Lead Spacing:	--
Termination:	Solder Pads
Height - Seated (Max):	0.039" (1.00mm)
Size / Dimension:	0.079" L x 0.049" W (2.00mm x 1.25mm)
Package / Case:	0805 (2012 Metric)
Mounting Type:	Surface Mount
Series:	ECH-U(B)
Dielectric Material:	Polyphenylene Sulfide (PPS), Metallized - Stacked
Voltage Rating - DC:	50V
Voltage Rating - AC:	--
Tolerance:	±5%
Capacitance:	390pF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Film capacitors, also known as plastic film capacitors, are a type of capacitor with a film dielectric layer as the primary component. They are usually made of polyester, polypropylene, and mylar (or PEN) film. They can be used in a variety of applications due to the thin film dielectric layer and its ability to prevent current leakage.The ECH-U1H391JB5 is a polyester film capacitor that is widely used for general-purpose applications. It is a very dependable and durable capacitor with a wide range of operating temperature. The capacitor is able to withstand a maximum temperature of 105°C. This type of capacitor provides a stable frequency response from -40°C to 105°C.The ECH-U1H391JB5 is typically used in AC and DC circuits in industrial, automotive, and consumer electronics applications. The capacitor can be used as a smoothing capacitor, a filter capacitor, and as a decoupling capacitor.In AC circuits, the capacitor can filter out any AC noise that is present in the DC supply, which thus protects other sensitive components of the device. In DC circuits, the capacitor can supply additional power during short duration current surges and helps to avoid voltage fluctuations in the supply voltage.The working principle of the ECH-U1H391JB5 is based on the same principles used in any other type of capacitor. The capacitor consists of two conductors that are separated from each other by a thin dielectric layer. When a voltage is applied across the two conductors, charges of opposite polarity build up on each conductor. This creates an electrostatic field between the capacitor plates, which stores energy.When AC is applied to the capacitor, the capacitor plates alternately charge and discharge, leading to voltage fluctuations in the current between the capacitor plates. These voltage fluctuations are smoothed out and the current is stabilized. This makes the capacitor an ideal choice for use in AC as well as DC circuits.The ECH-U1H391JB5 is a reliable and durable capacitor that is ideal for use in a variety of applications. It has a wide operating temperature range and is able to provide a stable frequency response during normal operating conditions. The capacitor can be used in AC and DC circuits and is effective in providing noise filtering, voltage stabilization, and additional current supply during short duration current surges.

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