SPSX391M0ER-6

Series:	SPSX
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Type:	Polymer
Capacitance:	390µF
Tolerance:	±20%
Voltage - Rated:	2.5V
ESR (Equivalent Series Resistance):	6 mOhm
Lifetime @ Temp.:	1000 Hrs @ 105°C
Operating Temperature:	-40°C ~ 105°C
Ratings:	--
Applications:	General Purpose
Ripple Current @ High Frequency:	3.5A @ 100kHz
Lead Spacing:	--
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Height - Seated (Max):	0.083" (2.10mm)
Surface Mount Land Size:	--
Mounting Type:	Surface Mount
Package / Case:	2917 (7343 Metric)

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Aluminum - Polymer Capacitors

SPSX391M0ER-6 application field and working principle

Aluminum-polymer capacitors, also known as aluminum electrolytic capacitors, offer improved voltage, temperature and energy capabilities over conventional aluminum electrolytic capacitors. The SPSX391M0ER-6 is one such capacitor, produced by the Taiwanese company TDK-Lambda. It is an advanced aluminum-polymer capacitor with an extended temperature rating range, wide operating voltage range and high capacitance.

Construction

The SPSX391M0ER-6 consists of an anode, a cathode, a separator and an electrolyte. The anode is made of aluminum foil coated with a conductive oxide layer, designed to provide excellent performance at high temperature. The cathode consists of a special polymer material, providing a stable environment for electrolyte absorption. The electrolyte itself is a liquid containing aluminum ions, which can be either non-aqueous or aqueous. Finally, the separator is made of a special material that helps prevent the electrolyte from leaking or solidifying.

Working principle

The SPSX391M0ER-6 works by passing an electrical current through the anode, which causes the aluminum ions to combine with the electrolyte to form a layer of conductive oxide on the anode. This layer acts as an insulator, preventing the electrical current from crossing the anode-cathode gap. The cathode also contains a layer of aluminum ions, which act as a second insulator, thus allowing electrical charge to be stored in the capacitor. The amount of charge stored in the capacitor is dependent on the size of the anode-cathode gap, the surface area of the anode and the volume of electrolyte.

Applications

The SPSX391M0ER-6 is suitable for applications that require high voltage, temperature and energy ratings, such as power supplies and power converters. It is also widely used in automotive and military electronic equipment, as well as consumer electronic devices.

Advantages

The most obvious advantage of the SPSX391M0ER-6 is its improved voltage, temperature and energy ratings. This makes it ideal for applications that require long-term reliable operation. The extended temperature range also ensures that the capacitor can withstand extreme temperatures without any damage. Furthermore, the SPSX391M0ER-6 has a low Equivalent Series Resistance (ESR), which makes it ideal for high-frequency operations. Additionally, the capacitor has a high capacitance density, meaning that a large amount of capacitance can be achieved in a small package, making it suitable for high power applications.

Disadvantages

Despite the benefits of the SPSX391M0ER-6, there are a few disadvantages that should be mentioned. For example, the capacitor has a relatively high cost compared to traditional aluminum electrolytic capacitors. Additionally, it has a shorter lifetime than traditional components, making it unsuitable for very long-term applications. Finally, the relatively high ESR can cause power losses in high-frequency operations. Overall, the SPSX391M0ER-6 is an excellent choice for many applications requiring high voltage, temperature and energy ratings. It offers excellent performance and is capable of withstanding extreme temperatures. Its extended temperature range and high capacitance density make it an ideal choice for high power applications. However, the relatively high cost and shorter lifetime should be taken into consideration before choosing the SPSX391M0ER-6.

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