COMET CTMN-30DAC-30-VK Vacuum Capacitors CTMN-30DAC/30-VK CMNT-12DAC/34-VK

( Brand: Comet ), ( Manufacturer Part Number: CTMN-30DAC/30-VK ), ( Item Diameter: 48mm ), ( Capacitance Rating: 25-35pf ), ( Type: Trimmer Capacitor ), ( Unit Type: Unit ), ( Capacitor Construction: Vacuum ), ( Item Height: 76mm ), ( Packaging: Box ), ( Country/region Of Manufacture: Switzerland ), ( Maximum Operating Voltage: 30kv )

Review COMET Ctmn-30dac/30-vk Vacuum Capacitors And Cmnt-12dac/34-vk Used Condition

The CTMN-30DAC/30-VK and CMNT-12DAC/34-VK vacuum capacitors from Comet are essential components for various electronic applications that require high voltage and low leakage current. These capacitors are designed to deliver superior performance and reliability, making them an ideal choice for radio frequency (RF) and high voltage power supply circuits.

The CTMN-30DAC/30-VK is a 30 kV, 155 pF vacuum capacitor, while the CMNT-12DAC/34-VK is a 34 kV, 120 pF vacuum capacitor. Both models feature a rugged, hermetically sealed design, ensuring excellent vacuum stability and preventing contamination from the surrounding environment. The vacuum interior of the capacitor eliminates the presence of any gas, reducing the risk of electrical discharge and ensuring a long service life.

The capacitor bodies are made of high-quality ceramic material with a fine porcelain finish, providing excellent electrical insulation and mechanical strength. The terminals are made of high-purity copper and are silver-plated to minimize electrical contact resistance and ensure optimal conductivity. The terminals are also mechanically robust, allowing for easy connection and secure mounting.

Both capacitor models offer a low leakage current, ensuring high voltage stability and accurate circuit performance. The low equivalent series resistance (ESR) and equivalent series inductance (ESL) further contribute to their excellent RF performance, making them ideal for use in RF matching networks, voltage multipliers, and other high-frequency applications.

The CTMN-30DAC/30-VK and CMNT-12DAC/34-VK vacuum capacitors are RoHS compliant and meet the requirements of various industry standards, including IEC, Mil-Spec, and MIL-PRF-27. They are also available in various voltage and capacitance ratings to cater to a wide range of applications. With their exceptional performance, reliability, and rugged construction, these vacuum capacitors from Comet are an excellent investment for any electronic system that demands high voltage and low leakage current.

Vacuum capacitors, specifically the Comet CTMN-30DAC/30-VK and CMT-12DAC/34-VK models, are essential components in various electrical systems due to their high voltage capacity and ability to maintain a consistent charge. However, like any other electronic components, they come with their advantages and disadvantages.

1. High Voltage Capability: Comet vacuum capacitors can store and discharge high voltages, making them suitable for applications requiring large voltage swings, such as power supplies and radio frequency (RF) systems.

2. Longer Lifespan: Compared to other capacitor types, vacuum capacitors have a longer lifespan due to their hermetically sealed design, which prevents moisture and contaminants from entering the capacitor.

3. Better Stability: Vacuum capacitors maintain a more stable voltage over a wide temperature range, ensuring consistent performance in various operating conditions.

4. Low Leakage Current: These capacitors have a very low leakage current, making them ideal for applications where minimal current flow is required.

1. Cost: Vacuum capacitors are generally more expensive than other capacitor types due to their complex manufacturing process and specialized design.

2. Size and Weight: Vacuum capacitors are larger and heavier than other capacitor types, which can pose challenges in applications with limited space or weight constraints.

3. Limited Availability: Due to their specialized nature and lower demand compared to other capacitor types, vacuum capacitors may be more difficult to source and could have longer lead times.

In conclusion, Comet vacuum capacitors offer several advantages, including high voltage capability, longer lifespan, better stability, and low leakage current. However, they come with some disadvantages, such as higher cost, larger size, and limited availability. Considering these factors, vacuum capacitors are a suitable choice for applications where high voltage, long-term stability, and minimal leakage current are essential requirements. If the application does not necessitate these features or if cost and size are major concerns, other capacitor types may be more suitable.

Details:

The COMET Vacuum Capacitor CTMN-30DAC/30-VK is a high-quality trimmer capacitor with capacitance rating of 25-35pF and maximum operating voltage 30kV. Other than silver tarnishing, capacitor appears serviceable. This unit, made by the reputable brand Comet in Switzerland. Information from Comet: Key Performance Parameters: Cmin25 pF, Cmax35 Upt30 kV, IMac at 13.56 MHz37 ARMS, Dia.48mm, height 76 Series Mini-Tune.

With dimensions of 76mm in height and 48mm diameter, this capacitor is used condition.

part #: ctmn30dac30 prices

• $75.00-$99.90

specifications capacitorelectron:

• brand: Comet
• mpn: Ctmn-30dac/30-vk
• item diameter: 48mm
• capacitance rating: 25-35pf
• type: Trimmer Capacitor
• unit type: Unit
• capacitor construction: Vacuum
• item height: 76mm
• packaging: Box
• country/region of manufacture: Switzerland
• maximum operating voltage: 30kv

general capacitorelectron:

• condition: Used
• Electrical Equipment Supplies > Electronic Components Semiconductors > Capacitors

offer capacitorelectron:

• availability: In Stock
• sold: 0
• best offers: True
• started: October 10, 2025
• options: Ship-to-home
• quantity: 1

payments capacitorelectron:

• other
• credit card: Mastercard
• wallet: Google-pay

returns capacitorelectron:

• policy: No Returns

shipping capacitorelectron:

• cost: $10.00
• service: USPS Ground Advantage
• class: Standard
• type: Fixed
• carrier: USPS
• transit: 6-13 Days

seller capacitorelectron:

• city: Livermore, California
• # reviews: 579
• rating: 100.0%

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