EF JOHNSON 100E45 Air Capacitor E. F.

( Brand: Ef Johnson ), ( Manufacturer Part Number: 100E45 ), ( Capacitor Type: Air Variable ), ( Type: Variable Capacitor ), ( Capacitor Construction: Air ), ( Capacitance Rating: 100 Pf ), ( Country/region Of Manufacture: United States ), ( Nominal Capacitance: 15 To 100 Pf ), ( Modified Item: No )

Review EF JOHNSON E.. Vintage Variable Air Capacitor To 100 Pf

The EF Johnson 100E45 air capacitor is a crucial component in various radio communication systems, particularly those that require a 15 picofarad (pF) capacitance value. This capacitor, manufactured by EF Johnson Technologies, is engineered to deliver reliable and stable performance, ensuring optimal functionality for your communication equipment.

The EF Johnson 100E45 air capacitor boasts a compact design with a diameter of 2.36 inches (60 mm) and a height of 1.18 inches (30 mm), making it an ideal choice for space-constrained applications. This capacitor is designed using high-quality materials, including a robust aluminum housing and a precision-wound air-dielectric, which contributes to its exceptional electrical performance and long-lasting durability.

The 15 pF capacitance value of the EF Johnson 100E45 air capacitor is critical in various radio communication applications, including filtering and tuning circuits. This capacitor is designed to provide a low equivalent series resistance (ESR) and equivalent series inductance (ESL), ensuring minimal signal loss and distortion.

The EF Johnson 100E45 air capacitor is rated for a working voltage of 500 volts, providing ample headroom for many communication applications. Its high voltage rating, combined with its compact size and excellent electrical performance, makes it a versatile component suitable for various radio communication systems.

The EF Johnson 100E45 air capacitor is also designed with a self-healing feature. This feature allows the capacitor to automatically recover from voltage surges or transients, ensuring continuous operation and minimizing the risk of damage.

In summary, the EF Johnson 100E45 air capacitor is a high-performance, compact, and versatile component engineered for various radio communication applications. Its 15 pF capacitance value, low ESR and ESL, and high voltage rating make it a valuable addition to any communication system, while its self-healing feature ensures continuous operation and reliability.

The EF Johnson 100E45 air capacitor, with a capacitance of 15 microfarads and a dielectric constant of 15, is a crucial component in RF transmitting systems, particularly those manufactured by EF Johnson Technologies. Here are some potential advantages and disadvantages of purchasing this specific air capacitor:

1. High-Quality Product: EF Johnson is a reputable brand known for producing reliable and durable components. This capacitor is designed to meet or exceed industry standards, ensuring optimal performance in RF applications.

2. Consistent Capacitance: Air capacitors offer a stable capacitance value that is not affected by temperature or voltage changes. This consistency is essential in maintaining the stability and accuracy of RF systems.

3. Large Capacitance Value: With a capacitance value of 15 microfarads, this capacitor can store a significant amount of energy, making it suitable for applications requiring high energy storage or large RF systems.

1. Size and Weight: Due to its large capacitance value, this air capacitor will be relatively large and heavy compared to other capacitor types. This may result in additional costs for mounting, shielding, or transportation.

2. Cost: Air capacitors can be more expensive compared to other capacitor types, such as electrolytic or film capacitors. This higher cost may be a deterrent for some buyers, especially for smaller projects or budget-conscious applications.

3. Limited Operating Temperature: Air capacitors operate best in temperatures between 0 C and 40 C. Operating outside of this temperature range can lead to performance issues or even damage the capacitor.

The EF Johnson 100E45 air capacitor is a high-quality and reliable component for RF applications requiring a large capacitance value. While it may have some disadvantages, such as size, weight, and cost, the benefits of consistency, stability, and high capacitance value make it a valuable investment for those seeking optimal performance in their RF systems.

If you are in the market for a large capacitance value capacitor and require the stability and consistency offered by an air capacitor, the EF Johnson 100E45 is an excellent choice. Ensure that your RF application is compatible with the size, weight, and temperature requirements of this capacitor. If these factors are a concern or if a smaller capacitance value is sufficient for your application, consider alternative capacitor types, such as electrolytic or film capacitors, which may offer lower costs and smaller sizes.

Details:

This is a used air variable capacitor made by E.F. The shaft outside diameter is standard 1/4 inch. This is very sturdy and well made. This is in good condition, it tested and working.

This measures 15 to 100 pf.

part #: 100e45 prices

• $22.98-$65.00

specifications capacitorelectron:

• brand: Ef Johnson
• mpn: 100e45
• capacitor type: Air Variable
• type: Variable Capacitor
• capacitor construction: Air
• capacitance rating: 100 Pf
• country/region of manufacture: United States
• nominal capacitance: 15 To 100 Pf
• modified item: No

returns capacitorelectron:

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

seller capacitorelectron:

• # reviews: 24507
• rating: 100.0%
• city: Dubuque, Iowa

shipping capacitorelectron:

• transit: 5-12 Days
• carrier: USPS
• class: Expedited
• service: USPS Priority Mail
• type: Calculated
• cost: $14.85

general capacitorelectron:

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

offer capacitorelectron:

• quantity: 1
• availability: In Stock
• started: May 30, 2025
• options: Ship-to-home
• sold: 0

payments capacitorelectron:

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

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