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Product Detailed Parameters
- Description：RF TRANS NPN 20V 8-SOIC
- Series：-
- Mfr：Microsemi Corporation
- Package：Bulk
- Transistor Type：NPN
- Voltage - Collector Emitter Breakdown (Max)：20V
- Frequency - Transition：-
- Noise Figure (dB Typ @ f)：-
- Gain：20dB
- Power - Max：1.5W
- DC Current Gain (hFE) (Min) @ Ic, Vce：10 @ 10mA, 5V
- Current - Collector (Ic) (Max)：400mA
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The MRF4427R1 is an NPN silicon RF bipolar transistor designed for general-purpose radio frequency amplifier applications. It features a collector-emitter breakdown voltage of 20V and supports a maximum collector current of 400mA. The device offers a typical gain of 20dB and handles a maximum power dissipation of 1.5W. It is housed in a surface-mount 8-SOIC package, suitable for integration into compact RF circuits.
Feature Summary
- NPN silicon construction optimized for RF signal amplification
- Surface-mount 8-SOIC packaging for automated assembly
- Designed for low-power general-purpose RF applications
Applications
- Pre-driver stages in RF transmitter chains
- RF oscillator circuits
- Low-power RF amplifier modules
Procurement Notes
Verify component authenticity through authorized Microsemi or Microchip distributors. Confirm the specific suffix matches the required package variant. Request official datasheets to validate electrical parameters against design requirements. Ensure compliance with RoHS directives if applicable. Check for obsolescence status prior to final procurement decisions.
Selection Notes
Select this component for low-voltage RF applications requiring moderate gain. The 20V breakdown rating limits suitability to low-power systems. Consider thermal management due to the 1.5W dissipation limit. Evaluate the 8-SOIC footprint against PCB layout constraints. Compare performance metrics against newer alternatives if higher power handling is needed.
Part Context
This part belongs to the Microsemi (now Microchip) family of RF discrete transistors. These components are engineered for stable operation in communication and radar systems. The MRF series provides reliable performance for signal conditioning tasks. Availability may vary as some variants are marked obsolete.
Replacement Considerations
Check for direct replacements within the MRF series. Verify pin compatibility and electrical specifications. Consult Microchip documentation for cross-reference lists. Ensure substitute parts meet the same RF performance criteria.
