AEROVOX 489MXY Hermetically Metallized Paper Caps Nos .05UF 400VDC

( Brand: Aerovox ), ( Manufacturer Part Number: 489MXY ), ( Part Type: Paper Cap ), ( Country Of Origin: United States )

Review AEROVOX .05uf 400vdc Hermetically Sealed Metallized paper Caps Nos

The Aerovox 489MXY 05UF 400VDC hermetically metallized-paper capacitors are electrolytic capacitors engineered for high-reliability applications that demand superior electrical performance and rugged construction. These capacitors are designed with a hermetically sealed metallized-paper dielectric, offering excellent stability, low equivalent series resistance (ESR), and high energy density.

The metallized-paper dielectric material provides a stable and reliable electrical performance over a wide temperature range, making these capacitors ideal for use in demanding environments. The hermetic sealing ensures that the internal components remain protected from contaminants, moisture, and other external influences, increasing the lifespan and reliability of the capacitor.

The Aerovox 489MXY 05UF 400VDC capacitors feature a voltage rating of 400VDC, providing ample voltage headroom for many applications. The capacitance value of 5 microfarads ( F) is suitable for various power supply filtering and energy storage requirements.

The capacitor's size is represented by the part number, with "489" signifying the capacitance value in microfarads, "M" indicating the metallized-paper dielectric, "X" denoting the voltage rating, "Y" representing the tolerance, and "05" indicating the physical size in inches.

These capacitors are manufactured to meet the stringent requirements of Mil-Spec and Aerospace standards, ensuring their high-reliability and suitability for use in critical applications. The 05UF designation refers to the physical size of the capacitor, which is 0.5 inches in diameter and 0.7 inches in height.

The Aerovox 489MXY 05UF 400VDC hermetically metallized-paper capacitors are a dependable choice for applications in military, aerospace, and industrial fields where high-reliability, long-term stability, and rugged construction are essential.

Aerovox 489MXY 05UF 400VDC hermetically metallized-paper capacitors are a type of electrical component used to store and release energy in an electrical circuit. These capacitors come with several advantages and disadvantages.

1. Long Term Stability: Hermetically sealed capacitors like the Aerovox 489MXY offer superior stability over their non-hermetic counterparts. They are less susceptible to moisture and air, which can cause degradation over time.

2. High Voltage and Reliability: These capacitors are designed for high voltage applications and provide reliable performance even under extreme conditions. They are commonly used in power supplies, rectifiers, and various other industrial applications.

3. Low ESR and ESL: The low Equivalent Series Resistance (ESR) and Equivalent Series Inductance (ESL) of these capacitors make them ideal for applications where fast charge and discharge times are required, such as in power converters and filters.

1. Cost: Hermetically sealed capacitors are generally more expensive than their non-hermetic counterparts due to their manufacturing process and the use of high-quality materials.

2. Bulkier and Heavier: The hermetic sealing process makes these capacitors larger and heavier than non-hermetic capacitors with the same capacitance value. This can be a consideration for applications where space and weight are limited.

3. Difficult to Replace: Due to their hermetic sealing, these capacitors are not user-serviceable. If a failure occurs, the entire capacitor must be replaced, which can be costly and time-consuming.

In conclusion, the Aerovox 489MXY 05UF 400VDC hermetically metallized-paper capacitors offer superior stability, high voltage, and reliability, making them an excellent choice for applications where these factors are crucial. However, they come with a higher cost, increased size and weight, and the inability to be serviced, which may be disadvantageous for some applications.

Based on the advantages and disadvantages discussed, I would recommend considering these capacitors for applications where long-term stability, high voltage, and fast charge and discharge times are essential. If cost, size, weight, or the ability to service the capacitor are significant concerns, alternative options may be worth exploring.

Details:

Rated for 400VDC. These are desirable Metal-Cased Capacitors with hermetically sealed ends. Mouse over the photo images to zoom in. Offered is a lot of 7 AEROVOX type 489MXY Metallized Paper Capacitors.

Each tests good on the cap checker pictured. The caps have full- length leads. Rated: .05uF 400VDC.

part #: 489mxy prices

• $15.00-$59.99

specifications vintacapacitor:

• brand: Aerovox
• mpn: 489mxy
• part type: Paper Cap
• country of origin: United States

returns vintacapacitor:

• policy: No Returns

offer vintacapacitor:

• quantity: 1
• started: November 19, 2025
• sold: 0
• best offers: True
• options: Ship-to-home
• availability: In Stock

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• rating: 99.8%
• # reviews: 7765
• city: Lake Winola, Pennsylvania

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general vintacapacitor:

• Vintage Audio Video > Vintage Parts Accessories > Vintage Capacitors
• condition: Open box

shipping vintacapacitor:

• cost: $14.20
• class: Expedited, Standard
• transit: 3-9 Days
• type: Calculated
• carrier: USPS
• service: USPS Priority Mail, USPS Ground Advantage

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