BLF548

Download datasheet This product has been discontinued.
Click here for discontinuation information.
This product has been discontinued. Click here for discontinuation information.
The replacement is: BLF647P

UHF push-pull power MOS transistor

Dual push-pull silicon N-channel enhancement mode vertical D-MOS transistor designed for communications transmitter applications in the UHF frequency range. The transistor is encapsulated in a 4-lead, SOT262A2 balanced flange package, with two ceramic caps. The mounting flange provides the common source connection for the transistors.

Features and benefits

  • High power gain
  • Easy power control
  • Gold metallization ensures excellent reliability
  • Good thermal stability
  • Designed for broadband operation

Applications

  • Communications transmitters in the 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 150 W
Test signal: CW
Gp power gain PL = 150 W; VDS = 28 V 10 11 dB
ηD drain efficiency VDS = 28 V; f = 500 MHz; IDq = 160 mA 50 55 %
PL output power 150 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))
BLF548 CDFM4
(SOT262A2)
sot262a2_po Bulk Pack Discontinued Standard Marking BLF548,112
(9340 066 20112)

Discontinuation information

Type number Ordering code (12NC) Last-time buy date Last-time delivery date Replacement product DN Notice Status Comments
BLF548 9340 066 20112 2014-03-31 2014-06-30 BLF647P Ampleon-DN_201306022DN Full Withdrawal

Pinning info

Pin Symbol Description Simplified outline Graphic symbol
1 D1 drain1
2 D2 drain2
3 G1 gate1
4 G2 gate2
5 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
BLF548 9340 066 20112 BLF548,112 RFMW Buy Not available
DigiKey Buy

Design support

Title Type Date
BLF548 14V 160mA S-parameter Data S-parameter 2012-06-08
BLF548 28V 160mA S-parameter Data S-parameter 2012-06-08