T55D687M004C0015 Capacitors

Operating Temperature:	-55°C ~ 105°C
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	D
Lead Spacing:	--
Height - Seated (Max):	0.118" (3.00mm)
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Package / Case:	2917 (7343 Metric)
Mounting Type:	Surface Mount
Lifetime @ Temp.:	1000 Hrs @ 105°C
Series:	vPolyTan™ T55
ESR (Equivalent Series Resistance):	15 mOhm @ 100kHz
Type:	Molded
Voltage - Rated:	4V
Tolerance:	±20%
Capacitance:	680µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum - Polymer CapacitorsTantalum - polymer capacitors refer to a type of capacitor utilizing a unique type of electrolytic material for its construction. This material, also known as solid polymer electrolyte or SPE, is essentially a combination of a porous dielectric, typically composed of a tantalum dioxide gel, and a polymer that acts as the electrolyte. Generally, the electrolyte can be composed of a variety of different materials, including aqueous or ionic liquids, but it is much more commonly based on aqueous solutions of organic materials. Tantalum - polymer capacitors have a number of key advantages over other types of capacitors, including their low ESR, highly consistent capacitance, extremely low leakage current, and excellent thermal stability. As such, they are relatively well suited to a variety of applications within the semiconductor and electronic industry. T55D687M004C0015 is one such type of tantalum - polymer capacitor. It is a circular device, with a maximum diameter of 22.3mm, a width of 9.2mm, and a height of 7.2mm. It is designed to operate at a maximum voltage of 16V and has a capacitance of 4.7 µF with an ESR of 0.35 ohms. This capacitor provides a wide range of operational frequencies, making it suitable for use in both DC and AC applications. The working principle of tantalum - polymer capacitors make use of the principles of electrical diffusion. When a voltage is applied to the device, the positively charged ions of the electrolyte material are drawn across the dielectric layer. As the ions pass through the electrolyte and dielectric layers, they gain electrons and store energy. This stored energy then affects the rate at which the charged ions travel, thus producing a capacitive effect. The unique combination of the tantalum dioxide and polymer layers found in this type of capacitor provide a range of advantages over other capacitor types. Firstly, the lower ESR is able to reduce the power dissipation of the capacitor itself, while the higher capacitance density of the polymer material allows for increased capacity within the same size case. Additionally, tantalum - polymer capacitors also offer excellent insulation resistance and a much lower equivalent series inductance, making them ideal for high-frequency applications. The benefits of these tantalum - polymer capacitors make them suitable for a range of different applications within the semiconductor and electronic industry. Common applications range from power supplies, to audio amplifiers and switching circuits. Within power supplies, these capacitors are able to provide maximum energy storage capacity and excellent stability of operating parameters. In audio applications, their high capacitance and low ESR enable excellent performance, while their low series inductance makes them well suited for use in firing circuits and high-frequency switching circuitry. Overall, the T55D687M004C0015 provides a unique combination of low ESR, high capacitance density, and a wide range of operational frequencies, making it an ideal choice for various applications within the semiconductor and electronic industry. With their low series inductance and excellent stability, they are well suited to applications requiring high capacitance and maximum energy storage, such as power supplies and audio amplifiers. Additionally, these capacitors can also provide excellent performance in high-frequency switching circuits, due to their low series inductance.

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