PHILLIPS BF981 Dual Mosfets Radio Qrp Gate Philips

( Brand: Phillips ), ( Manufacturer Part Number: BF981 ), ( Part Type: Radio ), ( Country/region Of Manufacture: Unknown )

Review PHILLIPS Dual Mosfets Radio Qrp Pieces Gate

The Phillips BF981 Dual 10 Mosfets QRP Gate is a versatile and high-performance radio frequency (RF) switching solution, ideal for amateur radio applications, particularly in the QRP (Low Power) category. This gate is equipped with two N-channel power MOSFETs, each with a drain-source voltage rating of 10 volts, making it suitable for use with a wide range of power sources.

The BF981 features a compact and robust design, with a small footprint that allows for easy integration into various radio systems. The dual MOSFET configuration allows for independent control of two RF paths, enabling functions such as antenna switching, power amplifier switching, or even transmit/receive (T/R) relay.

The gate operates at a switching frequency of up to 20 MHz, ensuring fast and efficient switching without introducing significant delay or distortion to the RF signal. The MOSFETs have a low on-resistance of approximately 0.15 ohms, which minimizes power loss and allows for efficient use of available power.

The Phillips BF981 Dual 10 Mosfets QRP Gate is designed for easy operation and features low-voltage gate drive, making it suitable for use with common logic levels. It is also designed to withstand high-voltage spikes, ensuring reliable operation even in harsh RF environments.

In summary, the Phillips BF981 Dual 10 Mosfets QRP Gate is a powerful and versatile RF switching solution, ideal for use in QRP radio systems. Its compact design, fast switching, and low power loss make it an excellent choice for a wide range of applications.

1. High Power Handling: The BF981 MOSFETs can handle up to 10 amps each, making them suitable for high power QRP applications.

2. Low On-State Resistance: The low on-state resistance of the MOSFETs ensures efficient power transfer and reduces heat dissipation.

3. Small Size: The compact size of the MOSFETs makes them easy to integrate into various radio designs.

4. Easy to Control: The MOSFETs can be easily controlled using digital logic, making them a popular choice for QRP transceivers.

1. High Cost: Compared to other MOSFETs, the BF981 can be quite expensive, which may be a deterrent for some hobbyists.

2. Limited Sources: The BF981 is not a commonly used MOSFET, which may make it harder to find supplies or replacement parts.

3. Requires Proper Heat Sinking: Due to their high power handling capacity, the MOSFETs require proper heat sinking to prevent overheating, which may add to the overall cost and complexity of the project.

The BF981 Dual 10 MOSFET Phillips Radio QRP Gate is a powerful and efficient component for high power QRP applications. Its low on-state resistance, small size, and easy control make it an attractive option for many hobbyists. However, its high cost and limited availability may be a concern for some. If price is not a major factor and you require high power handling and efficiency, the BF981 could be a great choice for your project.

If you are looking for a powerful and efficient MOSFET for your QRP project and price is not a major concern, the BF981 Dual 10 MOSFET Phillips Radio QRP Gate could be a great option. However, if you are on a budget, you might want to consider other MOSFETs with similar specifications but lower cost. Always ensure proper heat sinking is in place to prevent overheating.

Details:

This way can give a correct total due some data here these have a low noise fig.

Here are some nice dual gate mosfets.

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part #: bf981 prices

• $18.99-$49.97

specifications hamamateuradio:

• brand: Phillips
• mpn: Bf981
• part type: Radio
• country/region of manufacture: Unknown

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• zipcode: 59806
• city: Missoula, Montana

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• policy: no returns

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• type: Flat
• handling: 2 days
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General hamamateuradio:

• in stock: Yes
• Consumer Electronics > Radio Communication > Ham, Amateur Radio > Other Ham Radio Equipment
• condition: New other see details

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• quantity: 2
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• Started: June 16, 2016, 10:14 pm

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