M551B108K050AH Allicdata Electronics
Allicdata Part #:

M551B108K050AH-ND

Manufacturer Part#:

M551B108K050AH

Price: $ 232.55
Product Category:

Capacitors

Manufacturer: KEMET
Short Description: CAP TANT POLY 1000UF 50V CHA MNT
More Detail: 1000µF Hermetically Sealed Tantalum Polymer Capaci...
DataSheet: M551B108K050AH datasheetM551B108K050AH Datasheet/PDF
Quantity: 1000
Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
8 +: $ 211.41000
Stock 1000Can Ship Immediately
$ 232.55
Specifications
Series: M55
Packaging: Bulk 
Lead Free Status / RoHS Status: --
Part Status: Active
Moisture Sensitivity Level (MSL): --
Capacitance: 1000µF
Tolerance: ±10%
Voltage - Rated: 50V
Type: Hermetically Sealed
ESR (Equivalent Series Resistance): 20 mOhm
Operating Temperature: -55°C ~ 125°C
Lifetime @ Temp.: 2000 Hrs @ 85°C
Mounting Type: Chassis Mount
Package / Case: M55 Module
Size / Dimension: 2.051" L x 1.992" W (52.10mm x 50.60mm)
Height - Seated (Max): 0.520" (13.20mm)
Lead Spacing: --
Manufacturer Size Code: B
Ratings: --
Features: General Purpose
Description

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Tantalum-polymer capacitors are a type of electrochemical capacitor with a solid electrolyte made of a transition metal oxide and a polymer, while the anode is made of pure tantalum or tantalum-alloy. Commoner among them is the M551B108K050AH. These capacitors, owing to their design, offer high capacitance in a small size, and are best suited for use in a variety of high frequency, low and mid-range power applications.

The M551B108K050AH is a kind of chip capacitor, packaged in a miniature molded case with a lead spacing of 0.4 inches. It offers a low equivalent series resistance (ESR) of 12mΩ, a rated voltage range of 25Vdc to 50Vdc, and a capacitance of 0.108µF. These capacitors are usually used for short-term energy storage and deriving power when used in low or mid-range power applications such as audio amplifiers, LCD displays, computers, and cellular phones. They are also increasingly becoming popular in automotive and medical equipment applications.

Different from the other types of capacitors, tantalum-polymer capacitors work based on an electrolytic present between its anode and cathode. The anode is made of either tantalum or a tantalum alloy, which serves both as the conductor and the electrolytic component. On the other hand, the cathode is a graphite-containing activated powder which acts as a plating base. When power is applied, a voltage is developed between the two electrodes. This causes the anode (tantalum or tantalum alloy) to dissolve into its ions and form a highly conductive solid electrolyte, thus completing the electrical connection. This electrolyte then serves as a dielectric to maintain an electrical field.

M551B108K050AH capacitors have several advantages over traditional capacitors. They offer a very low ESR of 12mΩ, have a wide voltage range of 25Vdc to 50Vdc, and are relatively smaller than other capacitors. These capacitors are also highly reliable as they comes with a long shelf-life and can operate within a wide temperature range. Furthermore, they possess very good self-healing properties and can stand repetitive shocks, making them ideal for use in high-vibration applications.

Despite the major advantages, tantalum-polymer capacitors can be subject to failure due to their porous electrolite, which may get dried up over time. This reduces the capacitance and increases the ESR. Bad handling of such capacitors may also increase chances of failure, as metal ions may be left on their electrodes if touched with metal or skin. Therefore, proper handling techniques and selection procedures are necessary to ensure that they function properly under harsh environmental conditions.

In conclusion, the M551B108K050AH is a popular chip capacitor of the tantalum-polymer capacitor family with a host of favored electrical characteristics. It provides stable electrical energy and energy storage, making it suitable for a variety of low and mid-range power applications such as audio amplifiers, LCD displays, computers, and cellular phones. Despite the advantages, proper handling and selection techniques must be followed so that it functions optimally in harsh conditions.

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

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