BLF404

Download datasheet This product has been discontinued.
Click here for discontinuation information.
This product has been discontinued. Click here for discontinuation information.

UHF power MOS transistor

Silicon N-channel enhancement mode vertical D-MOS power transistor in an 8-lead SOT409A SMD package with a ceramic cap.

Features and benefits

  • High power gain
  • Easy power control
  • Gold metallization
  • Good thermal stability
  • Withstands full load mismatch
  • Designed for broadband operation

Applications

  • Communication transmitters in the VHF/UHF range

Parametrics

Symbol Parameter Conditions Min Typ/Nom Max Unit
frange frequency range 100 500 MHz
PL(1dB) nominal output power at 1 dB gain compression 4 W
Test signal: CW
Gp power gain PL = 4 W; VDS = 12.5 V 10 11.5 dB
ηD drain efficiency VDS = 12.5 V; f = 500 MHz; IDq = 50 mA 50 55 %
PL output power 4 W

Package / Packing

All type numbers in the table below are discontinued.

Type number Package Outline version Reflow-/Wave
soldering
Packing Product status Marking Orderable part number,
(Ordering code (12NC))
BLF404 CDIP8
(SOT409A)
sot409a_po Reel 7" Q1/T1 Discontinued Standard Marking BLF404,115
(9340 455 20115)

Discontinuation information

Type number Ordering code (12NC) Last-time buy date Last-time delivery date Replacement product DN Notice Status Comments
BLF404 9340 455 20115 2014-03-31 2014-06-30 Ampleon-DN_201306022DN Full Withdrawal

Pinning info

Pin Symbol Description Simplified outline Graphic symbol
1 S source
2 G gate
3 G gate
4 S source
5 S source
6 D drain
7 D drain
8 S source

Quality

All type numbers in the table below are discontinued.

Type number Orderable part number Chemical content RoHS / RHF Leadfree conversion date MSL MSL LF
Quality and reliability disclaimer

Ordering & availability

Type number Ordering code (12NC) Orderable part number Distributor Buy online Samples
BLF404 9340 455 20115 BLF404,115 RFMW Buy Not available
DigiKey Buy

Design support

Title Type Date
BLF404 6 25V 50mA S-parameter Data S-parameter 2012-06-08
BLF404 12 5V 50mA S-parameter Data S-parameter 2012-06-08