
( Brand: Ef Johnson ), ( Manufacturer Part Number: B72261-1 ), ( Model: 25-50 ), ( Part Type: Air Capacitor ), ( Country/region Of Manufacture: United States )
The EF Johnson B72261-1 is a high-performance, dual-section air capacitor specifically designed for use in radio communication systems. This capacitor comes in a compact and robust design, making it an ideal solution for various applications that require reliable and efficient power filtering.
Each section of this dual-section capacitor offers a tuneable capacitance range of 25 to 50 picofarads (pf). This capacitance range is essential in radio communication systems to fine-tune the circuitry for optimal performance. The B72261-1 is suitable for use with voltages ranging from 100 volts to 700 volts, making it highly versatile for use in various radio communication applications.
The EF Johnson B72261-1 is designed with high-quality components and advanced manufacturing techniques to ensure superior electrical performance. It features a low ESR (Equivalent Series Resistance) and low ESL (Equivalent Series Inductance), which minimizes energy loss and ensures excellent power handling capabilities. The capacitor's large surface area helps maintain a constant temperature, reducing the risk of overheating.
The B72261-1 is constructed with high-grade materials and undergoes rigorous testing to meet the highest industry standards. It is suitable for use in environments with temperatures ranging from -55 C to 70 C, making it an excellent choice for use in a wide range of applications and environments.
The dual-section design of this air capacitor provides improved filtering performance, making it suitable for use in applications where stable and efficient power filtering is critical. Its compact size and robust design make it easy to install and maintain, while the high-quality construction ensures long-term reliability and durability.
Overall, the EF Johnson B72261-1 is a high-quality, dual-section air capacitor suitable for a wide range of radio communication applications. Its tunable capacitance range, excellent electrical performance, and robust design make it an ideal solution for power filtering applications where efficiency, reliability, and stability are essential.
The EF Johnson B72261-1 air capacitor is a dual 25-50 pF sections capacitor designed for use in various electronic applications. This analysis will cover the key features, advantages, and disadvantages to help you make an informed decision about purchasing this component.
Dual Sections:The dual sections feature of this capacitor offers the benefits of having two capacitors in one housing, reducing the overall size and complexity of the circuit design. This can be particularly advantageous for applications with limited space or where multiple capacitors are required.
High Voltage Capability:The B72261-1 can handle voltages up to the specified range, ensuring reliable performance in power supply circuits. This high voltage capability offers greater flexibility, allowing use in various applications where other capacitors may not be suitable.
Air Dielectric:The air dielectric used in this capacitor offers several advantages, such as high insulation resistance, stable capacitance, and excellent thermal properties. It can withstand high operating temperatures and has a longer lifespan compared to capacitors with other dielectrics.
Large Capacitance Range:The capacitance range of 25-50 pF addresses applications that require capacitance values within this range. This can save time and resources by eliminating the need to source and incorporate multiple capacitors to achieve the desired capacitance.
Long-term Stability:With an operating temperature range of -55 C to 95 C, the EF Johnson B72261-1 demonstrates excellent long-term stability. This ensures consistent performance and reliability, even under varying temperature conditions.
High Ripple Current:This capacitor has high ripple current capabilities, which is essential in AC-DC power conversion applications as it helps maintain voltage stability and reduces EMI/RFI emissions.
Heavy and Bulkier:Despite its advantages, the EF Johnson B72261-1 air capacitor is larger and heavier than some other solutions due to its air dielectric and high voltage capability. This could be a disadvantage for applications where compactness is essential.
Recommendation:The EF Johnson B72261-1 air capacitor is an excellent choice for applications that require a high voltage capacitor with large capacitance (25-50 pF), long-term stability, and high ripple current capabilities. Its dual sections feature and air dielectric contribute to its reliability and performance, making it a sound investment for suitable applications. Ultimately, consider carefully the size and weight implications, as well as the specific circuit requirements, before deciding to purchase this component.
Excellent Condition working condition. The sections at 25-50 pF may be lower. The sections are penciled in at 25-50 pF which is higher than I measured with a primitive instrument. WYSIWYG What You See Is Get.
Tested by myself. Please study the photos. It is a high voltage capacitor probably from transmitter and the 3,000 volts my educated guess. EF JOHNSON B72261-1 AIR VARIABLE CAPACITOR, Dual 25-50 pF Sections, 3,000 volts .
It could be higher.