Allicdata Part #: | 1465-1189-ND |
Manufacturer Part#: |
MRF448 |
Price: | $ 118.20 |
Product Category: | Discrete Semiconductor Products |
Manufacturer: | M/A-Com Technology Solutions |
Short Description: | TRANS RF NPN 50V 16A 211-11RF Transistor NPN 50V 1... |
More Detail: | N/A |
DataSheet: | MRF448 Datasheet/PDF |
Quantity: | 24 |
1 +: | $ 118.20000 |
Series: | -- |
Packaging: | Tray |
Part Status: | Active |
Transistor Type: | NPN |
Voltage - Collector Emitter Breakdown (Max): | 50V |
Frequency - Transition: | -- |
Noise Figure (dB Typ @ f): | -- |
Gain: | 14dB |
Power - Max: | 250W |
DC Current Gain (hFE) (Min) @ Ic, Vce: | 10 @ 5A, 10V |
Current - Collector (Ic) (Max): | 16A |
Operating Temperature: | -- |
Mounting Type: | Chassis Mount |
Package / Case: | 211-11, Style 2 |
Supplier Device Package: | 211-11, Style 2 |
Base Part Number: | -- |
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The MRF448 is a power transistor that is classified under bipolar junction transistors in the radio frequency (RF) category. This type of transistor is mainly used to accommodate high power applications in television transmitter equipment. The first step to understanding how the MRF448 works is to go over its electrical characteristics.
The MRF448 has a maximum collector-emitter voltage of 40 volts and a maximum collector current of 6 amps. It also has a power gain of 10 at a frequency of 450 MHz, a frequency gain of 11 for a frequency of 450MHz, a maximum capacitance of 8pF, a gain bandwidth product of 4MHz with a DC current gain of 28. It also has an emitter-base voltage of 4 volts, base-emitter saturation voltage of 400mV, and a collector-base breakdown voltage of 75V.
The MRF448 can be used in a variety of applications. It is well-suited for use in radio amplifying devices, oscillators, and amplifying circuits where high-power is required. It can also be utilizes in pulse and telephone line amplifiers operating at frequencies up to 450MHz. Furthermore, it is used in TV transmitters and amplifiers, FM transmitters and amplifiers, cellular telephone systems, and for detection and measurement applications.
The MRF448 is a NPN type transistor and is used as an amplifier. When the transistor is in an OFF state, the base-emitter junction is not conducting, meaning that no current passes through the base of the device. However, when the transistor is in an ON state, the base-emitter junction is reverse biased, meaning that current passes through both the base and the emitter. To achieve this, the base needs to be connected to a voltage source. The base-emitter junction allows current to flow from the emitter to the base and ultimately to the collector. This means that the other input (the collector) will receive current and as a result, a DC current gain is observed. This is how the MRF448 works as an amplifier.
In conclusion, the MRF448 is a power transistor that belongs to the bipolar junction transistor and RF categories. It is characterized by its high collector-emitter voltage of 40 volts, maximum collector current of 6 amps, and power gain of 10 at a frequency of 450 MHz. In terms of its applications, the MRF448 can be used in radio amplifying devices, oscillators, amplifying circuits, TV transmitters and amplifiers, FM transmitters and amplifiers, cellular telephone systems, and detection and measurement applications. It works as an amplifier by allowing current to flow from the emitter to the base and ultimately the collector, which results in a DC current gain.
The specific data is subject to PDF, and the above content is for reference
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