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Product Detailed Parameters
- Description：RF TRANS NPN 40V 400MHZ SOT-23-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transistor Type：NPN
- Voltage - Collector Emitter Breakdown (Max)：40V
- Frequency - Transition：400MHz
- Noise Figure (dB Typ @ f)：-
- Gain：-
- Power - Max：300mW
- DC Current Gain (hFE) (Min) @ Ic, Vce：30 @ 8mA, 10V
- Current - Collector (Ic) (Max)：50mA
- 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-23-3
- Grade：-
- Qualification：-
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Overview
The MMBTH24-7-F is an NPN surface mount VHF/UHF transistor manufactured by Diodes Incorporated, packaged in a SOT-23 case. It is designed for high-frequency applications with a current gain-bandwidth product of 400 MHz at IC = 8 mA and VCE = 10 V. The device supports a continuous collector current of 50 mA and power dissipation of 300 mW. Maximum ratings include a collector-base voltage (VCBO) and collector-emitter voltage (VCEO) of 40 V, and an emitter-base voltage (VEBO) of 4.0 V. Operating temperature ranges from -55°C to +150°C.
Feature Summary
- Designed specifically for VHF/UHF amplifier applications and high-output VHF oscillators
- High current gain bandwidth product suitable for mixer and RF amplifier applications
- Operates effectively within collector currents ranging from 100 µA to 30 mA
Applications
- VHF/UHF Amplifier Applications
- High Output VHF Oscillators
- Mixer Applications
- RF Amplifier Applications
Procurement Notes
This component is officially marked as obsolete and discontinued by the manufacturer. No new production units are available through standard channels. Verification of availability should focus on existing stock or secondary market sources rather than direct procurement from Diodes Incorporated.
Selection Notes
Due to the obsolete status of the MMBTH24-7-F, alternative components must be evaluated for replacement. Selection criteria should prioritize matching the original specifications, particularly the 400 MHz gain-bandwidth product, 40 V voltage ratings, and SOT-23 package compatibility to ensure circuit functionality is maintained.
Part Context
The MMBTH24-7-F belongs to the MMBTH series of NPN transistors optimized for radio frequency performance. It utilizes a molded plastic SOT-23 case with matte tin finish plating. The part is RoHS compliant and lead-free, adhering to environmental standards for electronic components.
Replacement Considerations
As the MMBTH24-7-F is discontinued, engineers must identify equivalent NPN VHF/UHF transistors. Key parameters to match include the 400 MHz fT, 40 V VCEO, and SOT-23 footprint. Consult manufacturer datasheets for cross-reference recommendations.
