ASP QB7751-25 Air Capacitor 30

( Brand: Asp ), ( Manufacturer Part Number: QB7751-25 ), ( Capacitor Type: Air Variable ), ( Type: Variable Capacitor ), ( Capacitor Construction: Air ), ( Capacitance Rating: 30 Pf ), ( Country/region Of Manufacture: United States ), ( Nominal Capacitance: 3 To 30 Pf ), ( Modified Item: No )

Review ASP Vintage Variable Air Capacitor To 30 Pf

The ASP QB7751-25 air capacitor is a high-performance component designed for various electronic applications. This specific model has a capacitance value of 30 picofarads (pF), making it suitable for circuits requiring small capacitance values.

The ASP QB7751-25 is an air capacitor, which means that it uses air as the dielectric material between its plates. Air capacitors are known for their excellent stability, low leakage, and high voltage handling capabilities. This makes them an ideal choice for applications where consistent capacitance values and long-term stability are essential.

The capacitor's dimensions are 5.5 inches long, 3.5 inches wide, and 3.2 inches high. It has a voltage rating of 500 volts, making it suitable for use in circuits with moderate voltage requirements. The component is also RoHS compliant, ensuring that it meets the latest environmental regulations.

The ASP QB7751-25 is designed with a threaded metal can that provides mechanical stability and protects the capacitor from external damage. The capacitor comes with a paper insulation and a metalized film as the electrodes, which contribute to its high dielectric strength and stability.

The capacitor's terminals are made of brass and are nickel-plated for additional corrosion resistance. The component is also designed with a vented can, which allows for the safe release of gases that may build up during charging or discharging.

The ASP QB7751-25 air capacitor is a reliable and versatile component that can be used in various electronic applications, including power supplies, filters, and timing circuits. Its small capacitance value, high voltage handling capability, and excellent stability make it a valuable addition to any electronic project or circuit design.

The ASP QB7751-25 is a 30pf air capacitor designed for use in various electrical applications. Like any other electrical component, it has its advantages and disadvantages. Let's examine each in turn.

1. High Voltage Handling: The ASP QB7751-25 is capable of handling high voltages, making it suitable for use in high voltage electrical systems.

2. Large Capacitance: With a capacitance of 30pf, this capacitor can store and release large amounts of electrical charge, making it ideal for applications that require quick energy discharge.

3. Low ESR (Equivalent Series Resistance): A low ESR means that the capacitor can discharge quickly, reducing the ripple voltage in the circuit and improving the overall performance of the system.

1. Size and Weight: Due to its large capacitance and high voltage handling capabilities, the ASP QB7751-25 is a relatively large and heavy capacitor. This can make it more difficult to integrate into some systems, especially those with limited space.

2. Cost: Compared to other types of capacitors, such as film or electrolytic capacitors, air capacitors can be more expensive due to their larger size and more complex construction.

3. Maintenance: Air capacitors require regular maintenance to ensure that they remain properly charged and do not leak. This can add to the overall cost and complexity of using this type of capacitor in an electrical system.

In conclusion, the ASP QB7751-25 air capacitor offers several advantages, including high voltage handling, large capacitance, and low ESR. However, it also has some disadvantages, such as size and weight, cost, and maintenance requirements.

If the specifications and electrical requirements of your application match those of the ASP QB7751-25, then this capacitor may be a good choice. However, if size, cost, or maintenance are major concerns, then you may want to consider alternative types of capacitors, such as film or electrolytic capacitors. Ultimately, the best choice will depend on the specific requirements of your application and the trade-offs that you are willing to make.

Details:

This is made by ASP it marked QB7751-25. This is in good condition, it tested and working. This is 3 pf to 30. This is a used vintage air variable capacitor.

part #: qb775125 prices

• $15.95-$19.00

specifications capacitorelectron:

• brand: Asp
• mpn: Qb7751-25
• capacitor type: Air Variable
• type: Variable Capacitor
• capacitor construction: Air
• capacitance rating: 30 Pf
• country/region of manufacture: United States
• nominal capacitance: 3 To 30 Pf
• modified item: No

seller capacitorelectron:

• # reviews: 24464
• rating: 100.0%
• city: Dubuque, Iowa

payments capacitorelectron:

• other
• credit card: Diners-club
• wallet: Apple-pay

shipping capacitorelectron:

• carrier: USPS
• type: Calculated
• service: USPS First Class
• transit: 4-10 Days
• cost: $6.30
• class: Standard

returns capacitorelectron:

• paid by: Buyer
• time: 30 Days
• method: Money back
• policy: Returns Accepted

offer capacitorelectron:

• sold: 0
• availability: In Stock
• quantity: 1
• started: April 13, 2025
• options: Ship-to-home

general capacitorelectron:

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

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