Power LDMOS transistor

A 1200 W LDMOS power transistor for broadcast applications and industrial applications in the HF to 500 MHz band.

Features and benefits

  • Easy power control
  • Integrated ESD protection
  • Excellent ruggedness
  • High efficiency
  • Excellent thermal stability
  • Designed for broadband operation (10 MHz to 500 MHz)
  • Compliant to Directive 2002/95/EC, regarding Restriction of Hazardous Substances

Applications

  • Industrial, scientific and medical applications
  • Broadcast transmitter applications

Downloads

Datasheet
All application notes
All models
All documentation

All documents

Design tool

RF Power Lifetime Calculator

Transistor:
BLF578

Power LDMOS transistor

°C

Parametrics

Symbol Parameter Conditions Min Typ/Nom Max Unit
frange frequency range 10 500 MHz
PL(1dB) nominal output power at 1 dB gain compression 1200 W
Test signal: CW
Gp power gain VDS = 50 V; PL = 1200 W 26 dB
ηD drain efficiency VDS = 50 V; f = 108 MHz; IDq = 40 mA; PL = 1200 W 75 %
PL output power 1200 W

Package / Packing

Type number Package Outline version Reflow-/Wave
soldering
Packing Product status Marking Orderable part number,
(Ordering code (12NC))
BLF578 SOT539A
(SOT539A)
sot539a_po Bulk Pack Active Standard Marking BLF578,112
(9340 631 55112)

Pinning info

Pin Symbol Description Simplified outline Graphic symbol
1 D1 drain1
2 D2 drain2
3 G1 gate1
4 G2 gate2
5 S souce

Quality

Type number Orderable part number Chemical content RoHS / RHF Leadfree conversion date MSL MSL LF
BLF578 BLF578,112 BLF578 Always Pb-free 1 1
Quality and reliability disclaimer

Ordering & availability

Type number Ordering code (12NC) Orderable part number Distributor Buy online Samples
BLF578 9340 631 55112 BLF578,112 RFMW Buy Request samples
DigiKey Buy

Design support

Title Type Date
PCB Design BLF578 (AN10800) Design support 2012-02-24
PCB Design BLF578 (AN10967) Design support 2012-02-24
PCB Design BLF578 (AN10858) Design support 2012-02-24
PCB Design BLF578 (Data sheet) Design support 2012-02-24
BLF578 ADS-2016 Simulation model 2017-01-03
Ampleon Model Library for Microwave Office® Simulation model 2018-11-05
Ampleon Model Library Manual for Microwave Office® Simulation model 2018-11-05
Ampleon Simulation Example for Microwave Office® Simulation model 2018-11-05