ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：RF TRANS NPN 50V 211-11
- Series：-
- Mfr：MACOM Technology Solutions
- Package：Tray
- 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
- Grade：-
- Qualification：-
Download product information
Overview
The MRF448 is an NPN silicon RF power transistor from MACOM's RF Line, designed for high-voltage applications as a high-power linear amplifier operating between 2.0 and 30 MHz. It delivers 250 W output power with a minimum gain of 12 dB and 45% efficiency at 50 V and 30 MHz. The device exhibits intermodulation distortion of -30 dB (max) at 250 W PEP. It is 100% tested for load mismatch at all phase angles with a 3:1 VSWR.
Feature Summary
- Designed primarily for high-voltage applications as a high-power linear amplifier
- Specified for marine and base station equipment
- 100% tested for load mismatch at all phase angles with 3:1 VSWR
Applications
- High-power linear amplifiers from 2.0 to 30 MHz
- Marine equipment
- Base station equipment
Procurement Notes
Verify the specific manufacturer source when sourcing this component, as multiple vendors including Motorola, Tyco Electronics, and Advanced Semiconductor have historically produced the MRF448. Confirm that the datasheet revision matches your design requirements, as specifications may vary slightly between original and current manufacturers. Ensure the package style aligns with your thermal management strategy.
Selection Notes
Select the MRF448 for applications requiring high voltage operation and significant linear power output in the HF band. Consider its 250 W capability and 45% efficiency for systems where thermal dissipation can be managed effectively. Evaluate the -30 dB IMD specification against your linearity requirements. Verify compatibility with the CASE 211-11, Style 1 package for proper mounting and heat sinking.
Part Context
The MRF448 belongs to MACOM's RF Line of NPN silicon power transistors. It is engineered for robust performance in demanding RF environments, specifically targeting high-power linear amplification tasks. Its design focuses on reliability under high voltage conditions, making it suitable for critical communication infrastructure.
Replacement Considerations
Historical equivalents include parts from Motorola, Tyco Electronics, and Advanced Semiconductor. Verify pinout and thermal characteristics before substitution. Check for updated datasheets from alternative manufacturers to ensure parameter compatibility.
