MMBT3904 RFG Taiwan Semiconductor Corporation |
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| Allicdata Part #: | MMBT3904RFGDKR-ND |
| Manufacturer Part#: |
MMBT3904 RFG |
| Price: | $ 0.07 |
| Product Category: | Discrete Semiconductor Products |
| Manufacturer: | Taiwan Semiconductor Corporation |
| Short Description: | TRANSISTOR, NPN, 40V, 0.2A, 100A |
| More Detail: | Bipolar (BJT) Transistor NPN 40V 200mA 250MHz 300m... |
| DataSheet: |  MMBT3904 RFG Datasheet/PDF |
| Quantity: | 0 |
| 1 +: | $ 0.06300 |
| 10 +: | $ 0.05922 |
| 25 +: | $ 0.05368 |
| 100 +: | $ 0.03862 |
| 250 +: | $ 0.02276 |
| 500 +: | $ 0.01889 |
| 1000 +: | $ 0.01288 |
Specifications
| Series: | -- |
| Packaging: | Digi-Reel® |
| Part Status: | Active |
| Transistor Type: | NPN |
| Current - Collector (Ic) (Max): | 200mA |
| Voltage - Collector Emitter Breakdown (Max): | 40V |
| Vce Saturation (Max) @ Ib, Ic: | 300mV @ 5mA, 50mA |
| Current - Collector Cutoff (Max): | 50nA |
| DC Current Gain (hFE) (Min) @ Ic, Vce: | 100 @ 10mA, 1V |
| Power - Max: | 300mW |
| Frequency - Transition: | 250MHz |
| Operating Temperature: | -55°C ~ 150°C (TJ) |
| Mounting Type: | Surface Mount |
| Package / Case: | TO-236-3, SC-59, SOT-23-3 |
| Supplier Device Package: | SOT-23 |
Description
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MMBT3904 RFG application field and working principle
The MMBT3904 (Metal–Oxide–Semiconductor Field-Effect Transistor) is a fast switching and low-noise NPN bi-polar junction transistor (BJT) designed for general-purpose amplifier, low-noise amplifier, and output applications. It is used in a variety of application fields, and its working principles are also quite interesting.
The MMBT3904 (Metal–Oxide–Semiconductor Field-Effect Transistor) is a fast switching and low-noise NPN bi-polar junction transistor (BJT) designed for general-purpose amplifier, low-noise amplifier, and output applications. It is used in a variety of application fields, and its working principles are also quite interesting.
Application fields
The MMBT3904 is widely used in the following applications due to its fast switching speed, low-noise amplifier low-power drain, small size, and low on-state current:- Automotive systems, such as vehicle safety devices and in-car entertainment systems.
- Medical devices, such as medical diagnostics and medical imaging hardware.
- Consumer devices, such as digital cameras, printers, game consoles, and other portable electronics.
- Communication systems, such as satellite, Wi-Fi, and cellular base stations.
- Industrial systems, such as factory control systems and process automation.
- Military and aerospace systems, such as electronic warfare and missile guidance systems.
Working principle
The MMBT3904 is a NPN transistor that works by controlling the electrical current flowing through the device. The current is controlled by the voltage applied to the base terminal, which controls the current flowing from the collector to the emitter. When the base voltage is increased, the current between the collector and emitter terminals also increases. Conversely, when the base voltage is decreased, the current between the collector and emitter terminals decreases.The operating voltage of the MMBT3904 typically ranges from 16 volts to 24 volts. The transistor can switch currents of up to 1500 mA and can handle up to 25 watts of power.The MMBT3904 has a very low noise figure (NF) of 0.5dB and can operate at frequencies up to 1 GHz. The device also has a low rise and fall time (tr/tf) of 8ns, making it suitable for high-frequency switching applications.The MMBT3904 is manufactured in a small surface-mount package that is just 3.1mm x 1.5mm in size. The transistor is also highly reliable, with a minimum of 100,000 hours of operation at room temperature.Conclusion
The MMBT3904 is a fast switching and low-noise NPN bi-polar junction transistor (BJT) designed for general-purpose amplifier, low-noise amplifier, and output applications. It is used in a variety of application fields, such as automotive systems, consumer electronics, medical devices, and military or aerospace systems. It operates within a typical voltage range of 16-24 volts and can handle up to 25 watts of power. The transistor also has a very low noise figure (NF) of 0.5 dB and a fast switching time of 8ns, making it suitable for high-frequency switching applications. The package size of the MMBT3904 is just 3.1mm x 1.5 mm, making it ideal for space-constrained designs.The specific data is subject to PDF, and the above content is for reference
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