UHF power LDMOS transistor

A 1000 W LDMOS RF power transistor for asymmetrical broadcast Doherty transmitter applications which operates at 180 W DVB-T average power. The excellent ruggedness of this device makes it ideal for digital and analog transmitter applications in the frequency range from 400 MHz to 860 MHz.

Features and benefits

  • Designed for asymmetric Doherty operation
  • Very high efficiency enabling air cooled high power transmitters
  • Integrated ESD protection
  • Excellent ruggedness
  • High power gain
  • Excellent reliability
  • Easy power control
  • For RoHS compliance see the product details on the Ampleon website

Applications

  • Broadcast transmitter applications in the UHF band
  • Digital broadcasting
  • Applicable at frequencies from 400 MHz to 860 MHz

Downloads

Datasheet
All application notes
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Design tool

RF Power Lifetime Calculator

Transistor:
BLF989ES

UHF power LDMOS transistor

°C

Parametrics

Symbol Parameter Conditions Min Typ/Nom Max Unit
frange frequency range 400 860 MHz
PL(1dB) nominal output power at 1 dB gain compression 1000 W
Test signal: DVB-T (8k OFDM), Doherty operation
VDS drain-source voltage [0] 50 V
Gp power gain f = 550 MHz [0] 18.6 20 dB
ηD drain efficiency f = 550 MHz [0] 50 52 %
PL(AV) average output power f = 550 MHz [0] 180 W
IDq quiescent drain current peak section: VGS = 1.3 V below VGS(th) (peak) [0] 600 mA
PAR peak-to-average ratio f = 550 MHz [0] 6.9 7.4 dB

Package / Packing

Type number Package Outline version Reflow-/Wave
soldering
Packing Product status Marking Orderable part number,
(Ordering code (12NC))
BLF989ES SOT539BN
(SOT539BN)
sot539bn_po Tray, 20-fold; non-dry pack Active Standard Marking BLF989ESU
(9349 602 22112)

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
BLF989ES 9349 602 22112 BLF989ESU RFMW Buy Request samples
DigiKey Buy

Quality

Type number Orderable part number Chemical content RoHS / RHF Leadfree conversion date MSL MSL LF
BLF989ES BLF989ESU BLF989ES Always Pb-free 1 1
Quality and reliability disclaimer

Ordering & availability

Type number Ordering code (12NC) Orderable part number Distributor Buy online Samples
BLF989ES 9349 602 22112 BLF989ESU RFMW Buy Request samples
DigiKey Buy

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