RNU1D391MDN1KX Allicdata Electronics
Allicdata Part #:

493-16397-3-ND

Manufacturer Part#:

RNU1D391MDN1KX

Price: $ 0.30
Product Category:

Capacitors

Manufacturer: Nichicon
Short Description: CAP ALUM POLY 390UF 20% 20V T/H
More Detail: 390µF 20V Aluminum Polymer Capacitor Radial, Can 1...
DataSheet: RNU1D391MDN1KX datasheetRNU1D391MDN1KX Datasheet/PDF
Quantity: 1000
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
1000 +: $ 0.27351
2000 +: $ 0.25528
5000 +: $ 0.24616
10000 +: $ 0.23704
Stock 1000Can Ship Immediately
$ 0.3
Specifications
Series: FPCAP, RNU
Packaging: Tape & Box (TB) 
Lead Free Status / RoHS Status: --
Part Status: Active
Moisture Sensitivity Level (MSL): --
Type: Polymer
Capacitance: 390µF
Tolerance: ±20%
Voltage - Rated: 20V
ESR (Equivalent Series Resistance): 14 mOhm
Lifetime @ Temp.: 2000 Hrs @ 105°C
Operating Temperature: -55°C ~ 105°C
Ratings: --
Applications: General Purpose
Ripple Current @ Low Frequency: 497mA @ 120Hz
Ripple Current @ High Frequency: 4.97A @ 100kHz
Lead Spacing: 0.138" (3.50mm)
Size / Dimension: 0.315" Dia (8.00mm)
Height - Seated (Max): 0.512" (13.00mm)
Surface Mount Land Size: --
Mounting Type: Through Hole
Package / Case: Radial, Can
Description

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Aclutronic-Polymer Cacpacitors

Aluminum-polymer capacitors, also known as RNU1D391MDN1KX, are a type of electrolytic capacitor that uses a combination of aluminum and polymer as a dielectric material. Like other capacitor types, they are capable of storing static electrical charge, and have a number of advantages over traditional electrolytic capacitors. In this article, we\'ll discuss their application field, working principle and advantages, and then compare them to traditional electrolytic capacitors.

Application Field of Al-polymer Capacitors

Aluminum-polymer capacitors are suitable for applications in harsh environments, where traditional capacitors would easily be attacked or degraded by temperature or other external influences. They are highly reliable, and are commonly used in military, aerospace, and high-reliability industries. They can also be used in less demanding situations, such as consumer electronics, where they are seen as a relatively low-cost capacitor option.

Working Principle of Al-polymer Capacitors

Al-polymer capacitors work on the same principle as other types of capacitors. They use an aluminium metal-oxide layer, with an electrolyte and an external dielectric layer. The aluminum metal-oxide layer forms the anode and the electrolyte acts as an electrolyte, allowing electrical current to move freely between the anode and cathode. Together with the external dielectric layer, this creates a capacitor which can store electrical energy.

The key difference between al-polymer capacitors and traditional capacitors lies in the dielectric layer. Traditional capacitors use a dielectric material, such as paper or glass, but al-polymer capacitors use a polymer. This provides the capacitors with several advantages over traditional capacitors, such as a higher dielectric strength, higher temperature stability and a longer operating life.

Advantages of Al-polymer Capacitors

One of the main advantages of al-polymer capacitors is their high temperature stability. They are suitable for environment temperatures of up to 125°C, which is significantly higher than the typical operating temperature of most traditional capacitors, which is around 70°C. This makes them suitable for use in harsh environments, such as aerospace and automotive applications.

Al-polymer capacitors also have a longer operating life than traditional capacitors. They can last up to 10 times longer than traditional capacitors, making them extremely reliable. Additionally, they can handle more ripple current than alternative capacitors, which adds to their reliability.

Comparison With Traditional Capacitors

Al-polymer capacitors offer some significant advantages over traditional electrolytic capacitors. Firstly, they are much more reliable and have a longer operational life. They are also much better suited to use in environments with high temperatures. Furthermore, they can handle significantly more ripple current than traditional capacitors.

The main disadvantage of al-polymer capacitors is their cost. They are significantly more expensive than traditional capacitors, so are generally used for high-reliability or specialized applications. Additionally, al-polymer-based capacitors are often not able to replace traditional capacitors directly, so some design changes may be necessary.

Conclusion

Al-polymer capacitors, such as the RNU1D391MDN1KX, are a type of electrolytic capacitors that use a combination of aluminum and polymer as their dielectric material. They are more reliable, have a longer operating life, and are suitable for use in harsh environments. However, they are also significantly more expensive than traditional capacitors, limiting their use to specialized or high-reliability applications.

The specific data is subject to PDF, and the above content is for reference

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