PHILIPS BLF404 Data Sheet / Manual
Summary
The BLF404 is a high-power N-channel D-MOS UHF power transistor designed specifically for broadband operation in VHF/UHF communication transmitters. This comprehensive datasheet provides essential technical parameters, including absolute maximum ratings, RF performance curves, thermal characteristics, and deep operational details (such as on-state resistance and capacitance). It is an indispensable resource for electronics engineers and designers building robust, high-frequency communication equipment requiring reliable power gain and controlled stability.
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DISCRETE SEMICONDUCTORS
DATA SHEET
BLF404 UHF power MOS transistor
Product specification Jan
Supersedes data of 1997 Oct 28
Page Summary Contents For PHILIPS BLF404 Data Sheet / Manual
Manual Details
| Brand | Philips |
|---|---|
| Pages | 16 |
| File Size | 119.40 KB |
| Published | July 12, 2026 |
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Frequently Asked Questions
What is the maximum drain-source power dissipation at 85°C?
The total power dissipation (P_tot) max value is -8.3 W at T ≤ 85 °C.
Are there specific precautions for handling this component?
Yes, the product must be handled in anti-static packing to prevent damage from electrostatic discharge.
What are the typical on-state drain resistance parameters?
The typical R_DSon values range from 2.3 to 200 - ohmios (Ω) at standard test conditions.
Can this transistor withstand load mismatches?
Yes, it is capable of withstanding a VSWR = 10:1 mismatch under specified operating conditions.