This device has been transferred from Ampleon to Rochester Electronics.

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

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 Transferred Standard Marking BLF404,115
(9340 455 20115)
Trade pack Transferred Standard Marking BLF404,114
(9340 455 20114)

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

Ordering & availability

Type number Ordering code (12NC) Orderable part number Distributor Buy online Samples
BLF404 9340 455 20115 BLF404,115 Rochester Electronics Buy Not available
BLF404 9340 455 20114 BLF404,114 Rochester Electronics Buy Not available

Ordering & availability

Type number Ordering code (12NC) Orderable part number Distributor Buy online Samples
BLF404 9340 455 20115 BLF404,115 Rochester Electronics Buy Not available
BLF404 9340 455 20114 BLF404,114 Rochester Electronics Buy Not available

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