T540D227M004DH86057280 Allicdata Electronics
Allicdata Part #:

T540D227M004DH86057280-ND

Manufacturer Part#:

T540D227M004DH86057280

Price: $ 6.19
Product Category:

Capacitors

Manufacturer: KEMET
Short Description: CAP TANT POLY 220UF 4V 2917
More Detail: 220µF Molded Tantalum Polymer Capacitor 4V 2917 (7...
DataSheet: T540D227M004DH86057280 datasheetT540D227M004DH86057280 Datasheet/PDF
Quantity: 1000
Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
Moisture Sensitivity Level (MSL): 3 (168 Hours)
2500 +: $ 5.63105
Stock 1000Can Ship Immediately
$ 6.19
Specifications
Series: KO-CAP® T540
Packaging: Tape & Reel (TR) 
Lead Free Status / RoHS Status: --
Part Status: Active
Moisture Sensitivity Level (MSL): --
Capacitance: 220µF
Tolerance: ±20%
Voltage - Rated: 4V
Type: Molded
ESR (Equivalent Series Resistance): 40 mOhm @ 100kHz
Operating Temperature: -55°C ~ 125°C
Lifetime @ Temp.: 2000 Hrs @ 125°C
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): 0.122" (3.10mm)
Lead Spacing: --
Manufacturer Size Code: D
Ratings: COTS
Features: High Reliability
Description

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T540D227M004DH86057280 is a tantalum-polymer capacitor, so named because this type of capacitor is designed with an electrolyte sandwiched between two thin metal plates—one of which is a tantalum metal plate. It is a cost-effective, high-temperature and high-reliability capacitance product compared to traditional aluminum electrolytic capacitor.

Tantalum-polymer capacitors feature low ESR, low leakage current, and low Equivalent Series Resistance, providing high capacitance and high reliability. It also offers higher capacitance and voltage ratings compared to traditional aluminum electrolytic capacitors. Furthermore, due to its thin metal construction it is much lighter and easily mountable on a PCB. It also provides superior electrical characteristics, in terms of equivalent series resistance, equivalent series inductance, rate of change of capacitance, dissipation factor, and surge capacity.

Tantalum-polymer capacitors find application in various areas such as consumer electronics, automotive, medical, aviation, and defense systems. For example, it can be used as output capacitors for DC/DC converter and SMPS, coupling and bypass capacitors for active filters and amplifiers. In automotive applications, tantalum-polymer capacitors are used for input electrolysis and power control module voltage suppression functions. In medical application, tantalum-polymer capacitors are used as AC-coupling capacitor in a patient monitoring device. In defense application, they are used in avionics systems to minimize RFI-emission and to improve system EMI performance.

The working principle of these capacitors relies on the attraction between positive and negative ions in an electrolyte or dielectric. An electrically charged metal plate attracts ions of opposite charge to it. The ions gather on its surface, where they form a layer of material known as an electric double layer (EDL). The EDL acts as a barrier between the two plates, storing energy. When a voltage is applied across the plates, the ions are attracted to the opposite charge. This causes the capacitor\'s capacitance to change.

Tantalum-polymer capacitors are widely used today due to their superior electrical properties, lightweight construction and cost-effectiveness. This type of capacitor provides an effective solution for a wide range of applications in consumer electronics, automotive, medical, aviation and defense systems.

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

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