F931A157MNC Capacitors

Series:	F93
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	150µF
Tolerance:	±20%
Voltage - Rated:	10V
Type:	Molded
ESR (Equivalent Series Resistance):	600 mOhm
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	--
Mounting Type:	Surface Mount
Package / Case:	2917 (7343 Metric)
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Height - Seated (Max):	0.118" (3.00mm)
Lead Spacing:	--
Manufacturer Size Code:	N
Features:	General Purpose
Failure Rate:	--

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Tantalum Capacitors

Tantalum capacitors are a type of electrolytic capacitor, similar to aluminum electrolytic capacitors, which employ tantalum as an anode. Its popularity stems from its relatively high capacitance-to-volume ratio, allowing manufacturers to produce tantalum capacitors with a small footprint. These capacitors generally exist in a cylindrical package with a metallic top and bottom, although they can also exist in various other shapes and styles. Due to the very thin oxide layer that forms the dielectric of a tantalum capacitor, special care must be taken when designing circuits incorporating these components, as they are prone to failure from voltages significantly above their rated value.

F931A157MNC Application Field and Working Principle

F931A157MNC is a low equivalent series resistance (ESR) surface-mount tantalum capacitor manufactured by Murata Electronics. It has a capacitance of 15uF and a ±10% tolerance. The capacitor is rated for a maximum operating voltage of 4V, making it suitable for low voltage applications, such as those encountered in low power circuits, portable electronics, and microcontroller applications.The capacitor operates by storing energy in an electric field by creating a potential difference between two conductive plates, separated by a dielectric substance. The dielectric in this case is a thin layer of tantalum pentoxide, which is highly insulating and has a high breakdown voltage. The oxide layer is formed by anodizing the tantalum material in an acidic bath, which purifies the oxide layer and results in a further increase in capacitance.When a voltage is applied across the plates of the capacitor, the oxide layer acts as a dielectric, preventing current from flowing, but also allowing for the storage of energy as an electric field within the space between the plates. The capacitance of a capacitor is a measure of how much energy can be stored in it, and is calculated as the ratio of charge stored on the plates to the voltage applied. The F931A157MNC capacitor is able to store more energy than other types of capacitors due to its small physical size and its high capacitance-to-volume ratio. The anode and cathode leads of the capacitor are typically tin and silver plated, respectively. This provides optimal performance in soldering and higher thermal and moisture resistance than cheaper alloys. The capacitor is also epoxy resin sealed, which offers further protection from corrosion and moisture and also helps with shock and vibration absorption.In addition to its application in low voltage circuits, the F931A157MNC can also be used in audio circuits to filter out unwanted high frequencies, as well as provide energy storage for switching applications, such as those found in consumer electronics. This particular capacitor is also suitable for automotive applications due to its resistance to temperature cycle and high vibration environments.In summary, the F931A157MNC is a low equivalent series resistance surface-mount tantalum capacitor with a capacitance of 15uF and a maximum rating of 4V. This capacitor offers a number of advantages over other electrolytic capacitors due to its high capacitance-to-volume ratio, its small physical size, and its resistance to temperature cycle and vibration. It is suitable for applications such as low power circuits, portable electronics, and audio filtering, as well as in automotive applications.

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