HF / VHF power LDMOS transistor

A 500 W LDMOS power transistor for broadcast applications and industrial applications in the HF to 700 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 700 MHz)
  • For RoHS compliance see the product details on the Ampleon website

Applications

  • Industrial, scientific and medical applications
  • Broadcast transmitter applications

Downloads

Datasheet
All application notes
All documentation

All documents

Design tool

RF Power Lifetime Calculator

Transistor:
BLF974P

HF / VHF power LDMOS transistor

°C

Parametrics

Symbol Parameter Conditions Min Typ/Nom Max Unit
frange frequency range 10 700 MHz
PL(1dB) nominal output power at 1 dB gain compression 500 W
Test signal: CW pulsed
VDS drain-source voltage PL = 500 W [0] 50 V
Gp power gain PL = 500 W [0] 24.5 25.7 dB
ηD drain efficiency PL = 500 W [0] 74 76 %
RLin input return loss PL = 500 W [0] -19 -15 dB

Package / Packing

Type number Package Outline version Reflow-/Wave
soldering
Packing Product status Marking Orderable part number,
(Ordering code (12NC))
BLF974P SOT539A
(SOT539A)
sot539a_po Bulk Pack Active Standard Marking BLF974PU
(9349 602 94112)

Pinning info

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

Ordering & availability

Type number Ordering code (12NC) Orderable part number Distributor Buy online Samples
BLF974P 9349 602 94112 BLF974PU RFMW Buy Request samples
DigiKey Buy

Ordering & availability

Type number Ordering code (12NC) Orderable part number Distributor Buy online Samples
BLF974P 9349 602 94112 BLF974PU RFMW Buy Request samples
DigiKey Buy

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