OEP 26-139 Air Capacitor 15-410PF

( Brand: Oep ), ( Manufacturer Part Number: 26-139 ), ( Part Type: Air Capacitor )

Review OEP Air Variable Capacitor

The OEP 26-139 air capacitor, with a capacitance value of 15-410 picofarads (pF), is a versatile and high-performance component designed for various electronic applications. This air capacitor, manufactured by OEP, boasts several distinctive features that make it an excellent choice for engineers and technicians.

The primary characteristic of this capacitor is its large capacitance value, which ranges from 15 to 410 pF. This wide range makes it suitable for a multitude of applications, particularly those requiring small capacitance values. Moreover, the use of air as the dielectric medium allows for higher voltage ratings compared to other capacitor types.

The OEP 26-139 air capacitor is constructed with a robust and reliable design. Its cylindrical shape features a gold-plated terminals and a porcelain body, ensuring excellent electrical contact and long-lasting performance. The capacitor is filled with dry air, which maintains a stable dielectric constant and minimizes the risk of moisture-related issues.

This air capacitor also exhibits a low equivalent series resistance (ESR) and equivalent series inductance (ESL), resulting in minimal power loss and excellent frequency response. Its low ESR and ESL make it a suitable choice for applications involving high-frequency signals, such as radio-frequency (RF) and microwave circuits.

The OEP 26-139 air capacitor offers a voltage rating of 200 volts, ensuring safe and reliable operation even under demanding conditions. Its large capacitance value and high voltage rating make it a suitable alternative to film capacitors for specific applications where size and cost are critical factors.

In summary, the OEP 26-139 air capacitor is a versatile and high-performance component with a wide capacitance range, low ESR and ESL, and a robust design. Its suitability for high-frequency applications, coupled with its high voltage rating, makes it a valuable addition to any electronics design project.

The OEP 26-139 air capacitor with a capacity of 15-410pf is a crucial component in various electrical systems, particularly in radio frequency (RF) applications. Here are some pros and cons to consider before making a purchase:

1. High Voltage Handling: This capacitor can handle high voltages, making it suitable for RF applications that require high voltage capacitors.

2. Large Capacitance: With a capacitance range of 15-410pf, this capacitor can store and release large amounts of electrical charge, which is essential in RF systems.

3. Low ESR: The low Equivalent Series Resistance (ESR) of this capacitor ensures minimal power loss and improved efficiency in the circuit.

4. Long Service Life: Air capacitors generally have a longer service life than electrolytic capacitors due to the absence of an electrolyte.

5. Flexibility: Air capacitors can be easily tuned by adjusting the gap between the plates, which makes them versatile in RF applications.

1. Size and Weight: Air capacitors are generally larger and heavier than electrolytic capacitors because of the air gap between the plates. This can be a disadvantage in applications where space and weight are a concern.

2. Instability: Air capacitors can be affected by temperature and humidity, which can cause instability in the capacitance value.

3. Cost: Air capacitors can be more expensive than electrolytic capacitors due to their larger size, complexity, and longer manufacturing time.

4. Leakage: Air capacitors can experience leakage over time due to the gradual deterioration of the dielectric material.

5. Maintenance: Air capacitors require regular maintenance to ensure proper functioning, including periodic inspection and adjustment of the gap between the plates.

The OEP 26-139 air capacitor with a capacity of 15-410pf is a reliable and high-performing component for RF applications that require large capacitance and high voltage handling. However, it comes with some disadvantages, such as its larger size, weight, and the need for regular maintenance.

If you require a large capacitance value and can accommodate the larger size and weight, then the OEP 26-139 air capacitor is a suitable choice for your RF application. However, if space and weight are a concern or if you prefer a more maintenance-free solution, consider alternative capacitor types such as electrolytic or film capacitors.

Details:

Sale is for 1 piece. Removed from Heath kit HW-7 if I remember correctly.

part #: 26139 price

• $124.99

specifications vintacapacitor:

• brand: Oep
• mpn: 26-139
• part type: Air Capacitor

general vintacapacitor:

• Vintage Audio Video > Vintage Parts Accessories > Vintage Capacitors
• condition: Used

payments vintacapacitor:

• credit card: Diners-club
• wallet: Paypal
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seller vintacapacitor:

• # reviews: 4496
• city: Louisville, Kentucky
• rating: 100.0%

shipping vintacapacitor:

• cost: $8.55
• service: USPS Ground Advantage
• carrier: USPS
• type: Calculated
• class: Standard
• transit: 5-9 Days

offer vintacapacitor:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: December 28, 2025
• quantity: 2

returns vintacapacitor:

• policy: No Returns

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