UHF power LDMOS transistor

A 900 W LDMOS RF power transistor for broadcast Doherty, class-AB transmitter and industrial applications. 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 broadband and Doherty operation
  • High efficiency
  • Integrated dual sided ESD protection
  • Excellent ruggedness
  • High power gain
  • Excellent reliability
  • Easy power control
  • Excellent stability
  • For RoHS compliance see the product details on the Ampleon website

Applications

  • Broadcast transmitter applications in the UHF band
  • Digital and analog broadcasting
  • Industrial, scientific and medical applications
  • Applicable at frequencies from 400 MHz to 860 MHz

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 900 W
Test signal: Class-AB broadband/DVB-T (8k OFDM)
VDS drain-source voltage 470 to 710 MHz [0] 50 V
Gp power gain 470 to 710 MHz [0] 20 dB
ηD drain efficiency 470 to 710 MHz [0] 34 %
PL(AV) average output power 470 to 710 MHz [0] 150 W
IMDshldr intermodulation distortion shoulder attenuation 470 to 710 MHz [0] -30 dBc
PAR peak-to-average ratio 470 to 710 MHz [0] 8.2 [1] dB
Test signal: Symmetric Doherty/DVB-T (8k OFDM)
VDS drain-source voltage 470 to 500 MHz [0] [2] [3] 50 V
Gp power gain 470 to 500 MHz [0] [2] [3] 19 dB
ηD drain efficiency 470 to 500 MHz [0] [2] [3] 50 %
PL(AV) average output power 470 to 500 MHz [0] [2] [3] 300 W
IMDshldr intermodulation distortion shoulder attenuation 470 to 500 MHz [0] [2] [3] -37 dBc
PAR peak-to-average ratio 470 to 500 MHz [0] [2] [3] dB

Package / Packing

Type number Package Outline version Reflow-/Wave
soldering
Packing Product status Marking Orderable part number,
(Ordering code (12NC))
BLF989 SOT539A
(SOT539A)
sot539a_po Bulk Pack Active Standard Marking BLF989U
(9349 601 46112)

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

Type number Orderable part number Chemical content RoHS / RHF Leadfree conversion date MSL MSL LF
Quality and reliability disclaimer

Design support