4TPE100MZB Capacitors

Series:	POSCAP™ TPE
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	100µF
Tolerance:	±20%
Voltage - Rated:	4V
Type:	Molded
ESR (Equivalent Series Resistance):	35 mOhm
Operating Temperature:	-55°C ~ 105°C
Lifetime @ Temp.:	1000 Hrs @ 105°C
Mounting Type:	Surface Mount
Package / Case:	1411 (3528 Metric)
Size / Dimension:	0.138" L x 0.110" W (3.50mm x 2.80mm)
Height - Seated (Max):	0.079" (2.00mm)
Lead Spacing:	--
Manufacturer Size Code:	B2
Ratings:	--
Features:	General Purpose

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Introduction to Tantalum - Polymer Capacitors

Tantalum and polymer capacitors are combined with more than one material in their construction and form an important part of the capacitor family. They are known for their use in high-frequency applications and consist of two electrode layers where one layer is made of a tantalum material and the other layer is a dielectric material. Polymer tantalum capacitors offer a variety of advantages and are ideal for use in most electronic designs.

Uses of Tantalum - Polymer Capacitors

Tantalum – Polymer capacitors are often used in a variety of electronic applications. They are used in power supplies, audio signal circuitry, and low power analog circuits, as well as miniaturized and high frequency applications such as smartphones and laptop computers.They are also beneficial for radio frequency (RF) and digital integrated circuits as they can be used in circuit routings and minimize capacitance loading when compared to electrolytic capacitors. The added dielectric layer in the tantalum – polymer capacitor increases the reactive circuits requiring low frequency upper end applications where there are high voltages.

4TPE100MZB Application Field and Working Principle

The 4TPE100MZB is a 4.8mm diameter, case size C and 1210 size polymer tantalum capacitor from KEMET. It has a rated capacitance of 100µF, an operating voltage of 2.5VDC and a temperature range of –55ºC to 125ºC.It is generally used in applications where a lower profile design is preferred, such as in mobile phones and laptop computers. The 4TPE100MZB is a solid electrolyte type capacitor made with a conductive polymer. This conductive polymer is formed by doping polyethylene with organic molecules to create an ionic film with high concentration of ions. The ions move in the film when an electric field is applied and when current passes through, the ions are mobile and this results in the placement of electrical charge on the plate which generates a capacitance resistance. This is what makes the polymer tantalum capacitor so effective as it is able to offer improved capacitance and voltage ratings, making it ideal for high frequency and miniaturized applications.

Advantages of Tantalum - Polymer Capacitors

The main advantage of the tantalum – polymer capacitor is the increased capacitance and voltage rating it offers. This is due to the polymer film and the larger surface area of the electrodes, allowing for much higher capacitance values. There is also a much wider temperature operating range than with traditional tantalum capacitors, as well as a wider temperature spikes which makes them suitable for a much wider array of applications.The construction of the tantalum – polymer capacitors also offers some other benefits as they are much smaller in size when compared to other capacitors, as well as much lighter in weight. This makes them ideal for high frequency and mobile applications, where size and weight are a primary issue.In addition, the polymer dielectric layer of the capacitor is much less affected by AC ripple current than other capacitors. This makes it ideal for use in applications where high ripple currents are present.

Conclusion

The 4TPE100MZB Tantalum – Polymer capacitor offers a variety of advantages over other capacitor types. It can provide increased capacitance and voltage ratings as well as a wider temperature range and improved ripple current capability. In addition, they are much smaller and lighter than alternative capacitors, making them perfect for high-frequency and mobile applications. They are used in many electronic designs, including power supplies, audio signals, low power analog circuits, as well as miniaturized and high frequency applications such as smartphones and laptop computers.

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