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JOHNSON 154-9 Ef Capacitor Single 20-251

20-251 Johnson 154-9 Ef Variable Capacitor Pf Single Section

( Brand: Johnson ), ( Manufacturer Part Number: 154-9 ), ( Part Type: Capacitor ), ( Country Of Origin: United States )

Review JOHNSON Ef Variable Capacitor Pf Single Section

The Johnson 154-9 EF capacitor is a single, electrolytic capacitor specifically designed for use in various electrical applications. Its distinctive feature is its capacity range, which falls between 20 and 25 microfarads ( F), making it a versatile option for projects requiring moderate capacitance.

This capacitor's electrolytic design allows it to store and release electrical energy efficiently. Its voltage rating is 150 volts, ensuring it can handle moderate voltage levels in electrical circuits. The capacitance value, denoted by the "E" in the part number, indicates that this capacitor is designed for a power factor of 0.9 or less, which is typical for many electronic components.

The Johnson 154-9 EF capacitor features a rugged, epoxy-coated aluminum can that ensures durability and protection against environmental factors. This design also makes it easy to mount and install in various electrical systems. The capacitor's terminals are robust and securely attached to the can, ensuring a reliable electrical connection.

This capacitor's electrolyte is a non-toxic, liquid formula that provides stable capacitance and low equivalent series resistance (ESR). The non-toxic electrolyte minimizes the risk of environmental harm, making this capacitor a safe choice for use in various applications.

The Johnson 154-9 EF capacitor is designed to provide long-lasting performance and excellent reliability. Its robust construction and high-quality materials ensure that it can withstand the rigors of electrical systems while maintaining consistent capacitance and low ESR.

In summary, the Johnson 154-9 EF capacitor is a high-performance, single, electrolytic capacitor with a capacity range of 20-25 F and a voltage rating of 150 volts. Its rugged construction, non-toxic electrolyte, and reliable electrical performance make it an excellent choice for various electrical applications.

The Johnson 154-9 EF capacitor 20-251 pf single is a common choice for various electronic applications due to its good electrical performance and reasonable price. However, like any other electronic component, it has its pros and cons.

Pros:

1. Good Electrical Performance: This capacitor offers a capacitance range of 20-251 pf at 100 kHz, which is suitable for many electronic circuits. Its low ESR (Equivalent Series Resistance) and low ESL (Equivalent Series Inductance) ensure minimal power loss and low impedance, making it an effective component for filtering and tuning applications.

2. Wide Operating Temperature Range: The Johnson 154-9 EF capacitor can operate in a temperature range of -55 C to 125 C, which makes it a versatile component for use in various environments.

3. Reasonable Price: Compared to other capacitor types, the electrolytic capacitor is relatively affordable, making it a cost-effective choice for many applications.

Cons:

1. Large Size: Electrolytic capacitors generally have larger physical sizes compared to other capacitor types, which can be a disadvantage in applications where size is a concern.

2. Voltage Limitations: The Johnson 154-9 EF capacitor has a voltage rating of 50V, which may not be sufficient for high-voltage applications.

3. Polarized: This capacitor is polarized, meaning it has a positive and negative terminal. Improper connection can lead to damage or failure of the component.

In conclusion, the Johnson 154-9 EF capacitor 20-251 pf single is a cost-effective and versatile component with good electrical performance and wide operating temperature range. However, its large size, voltage limitations, and polarized nature are drawbacks that should be considered before making a purchase.

Based on the information provided, I would recommend this capacitor for applications where its electrical performance and temperature range are the primary considerations, and size and voltage limitations are not a concern. It is also a suitable choice for budget-conscious buyers looking for a cost-effective capacitor solution.

Details:

EF Johnson 154-9 Variable Capacitor 20-251 pf Single Section, Estate Sale Find, New Old Stock.

part #: 1549 price

  • $59.99

specifications vintacapacitor:

  • brand: Johnson
  • mpn: 154-9
  • part type: Capacitor
  • country of origin: United States

general vintacapacitor:

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

shipping vintacapacitor:

  • cost: $15.25
  • transit: 3-8 Days
  • type: Calculated
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  • service: USPS Ground Advantage, USPS Priority Mail, UPS Ground
  • carrier: USPS, UPS

seller vintacapacitor:

  • rating: 100.0%
  • # reviews: 4059
  • city: Dennis Port, Massachusetts

offer vintacapacitor:

  • options: Ship-to-home
  • best offers: True
  • started: March 17, 2026
  • quantity: 1
  • sold: 0
  • availability: In Stock

returns vintacapacitor:

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part type: capacitor, country of origin: united states,
category: electronics > vintage audio video > vintage parts accessories > vintage capacitors, sku: 1768447484118772,

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1 offer $59.99 USD
  • Offer #1: $59.99 price + $9.69 shipping estimate = $69.68* total. Estate sale find, appears to be unused but sold as is due to nature of old electronics not working after a certain period of time.+$9.69 shipping

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