JENNINGS UCSV-110-158 Vacuum Capacitor 12PF 122PF 15KV

( Brand: Jennings ), ( Manufacturer Part Number: UCSV-110-158 ), ( Type: Vacuum Variable Capacitor ), ( Shape: Round ), ( Capacitor Construction: Vacuum ), ( Item Diameter: 2 3/4 Inches ), ( Capacitance Rating: 12pf 122pf ), ( Material: Glass, Glass/metal ), ( Item Length: 4 7/8 Inches ), ( Country Of Origin: United States ), ( Maximum Operating Voltage: 15kv )

Review JENNINGS Vacuum Variable Capacitor Used

The Jennings UCSV-110-158 vacuum capacitor is a high-performance electrical component designed for various industrial applications. This capacitor, specifically, comes with two separate capacitances: 12pF and 150pF (122pF approximately), making it a versatile option for circuits requiring different capacitance values.

The UCSV-110-158 is a vacuum capacitor, which means it utilizes a vacuum chamber instead of a dielectric material to store electrical charge. With this design, the capacitor offers several advantages over other types, such as higher voltage ratings, longer life, and improved stability. In this particular model, the voltage rating is an impressive 15kV.

The vacuum technology used in the Jennings UCSV-110-158 ensures that the capacitor maintains a consistent capacitance value, even under varying temperatures and voltages. This is crucial for circuits that demand high precision and stability. Additionally, vacuum capacitors are known for their ability to withstand high voltages and currents, making them suitable for use in high-voltage power supplies, radio frequency (RF) circuits, and other demanding applications.

The UCSV-110-158 vacuum capacitor is also designed with a robust construction. Its metallic electrodes and vacuum chamber are enclosed in a rugged, high-voltage insulating material, providing protection against external factors and ensuring reliable operation in harsh environments.

In summary, the Jennings UCSV-110-158 vacuum capacitor is a high-performance electrical component with a compact design. It offers a combination of 12pF and 150pF capacitances, a high voltage rating of 15kV, and the stability and longevity benefits of vacuum technology. This makes it a valuable addition to various industrial applications where precision, reliability, and high-voltage capabilities are essential.

The Jennings UCSV-110-158 vacuum capacitor is a high-voltage capacitor used in various applications, including X-ray generators and industrial processes. Here are some pros and cons of buying this capacitor:

1. High Voltage: With a rating of 15kV, this capacitor can handle high voltage applications.

2. Low Leakage Current: Vacuum capacitors have very low leakage currents, making them ideal for applications where low current is required.

3. Long Life Span: Vacuum capacitors have a longer life span compared to other types of capacitors due to the absence of an electrolyte.

4. Stability: Vacuum capacitors provide excellent stability, making them suitable for applications where a constant voltage is required.

5. Reliability: Vacuum capacitors are known for their reliability and can operate in harsh environments.

1. Cost: Vacuum capacitors are more expensive compared to other types of capacitors due to their complex manufacturing process.

2. Size: Vacuum capacitors are larger in size compared to other types of capacitors, making them less suitable for applications where space is limited.

3. Handling: Vacuum capacitors require special handling due to their high voltage and delicate construction.

4. Complexity: Vacuum capacitors are more complex to manufacture and repair compared to other types of capacitors.

The Jennings UCSV-110-158 vacuum capacitor is a high-performance capacitor suitable for applications that require a high voltage, low leakage current, stability, and reliability. However, its high cost, large size, and complex handling and manufacturing make it less suitable for applications where these factors are a concern. If the application requirements align with the pros of this capacitor, then it is a recommended choice. Otherwise, other types of capacitors may be more suitable.

Details:

It is in excellent condition. Its measured capacitance is approximately 12PF to 122PF. 48 contiguous states only. I am not 100% sure that the manufacturer is Jennings.

This vacuum variable capacitor has been in dry, heated storage for many decades. NO military addresses. I am assuming it is because of the UCSV-110-158 part number. I am selling it as is.

part #: ucsv110158 prices

• $159.95-$299.99

specifications capacitorelectron:

• brand: Jennings
• mpn: Ucsv-110-158
• type: Vacuum Variable Capacitor
• shape: Round
• capacitor construction: Vacuum
• item diameter: 2 3/4 Inches
• capacitance rating: 12pf 122pf
• material: Glass, Glass/metal
• item length: 4 7/8 Inches
• country of origin: United States
• maximum operating voltage: 15kv

payments capacitorelectron:

• wallet: Apple-pay
• credit card: Discover
• other

returns capacitorelectron:

• policy: No Returns

general capacitorelectron:

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

offer capacitorelectron:

• availability: In Stock
• quantity: 1
• best offers: True
• started: February 11, 2026
• sold: 0
• options: Ship-to-home

shipping capacitorelectron:

• service: FedEx Ground / FedEx Home Delivery
• transit: 6-9 Days
• carrier: FedEx
• cost: $19.48
• class: Standard
• type: Calculated

seller capacitorelectron:

• city: Fairmont, West Virginia
• rating: 100.0%
• # reviews: 1196

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