This product is not recommended for design-in.
The recommended type is: BLF984P

UHF power LDMOS transistor

A 350 W LDMOS RF power transistor for broadcast transmitter applications and industrial applications. The excellent ruggedness of this device makes it ideal for digital and analog transmitter applications.

Features and benefits

  • Excellent ruggedness
  • Optimum thermal behavior and reliability, Rth(j-c) = 0.22 K/W
  • High power gain
  • High efficiency
  • Designed for broadband operation (470 MHz to 860 MHz)
  • Internal input matching for high gain and optimum broadband operation
  • Excellent reliability
  • Easy power control
  • Compliant to Directive 2002/95/EC, regarding RoHS


  • Communication transmitter applications in the UHF band
  • Industrial applications in the UHF band


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Design tool

RF Power Lifetime Calculator


UHF power LDMOS transistor



Symbol Parameter Conditions Min Typ/Nom Max Unit
frange frequency range 470 860 MHz
PL(1dB) nominal output power at 1 dB gain compression 350 W
Test signal: CW
Gp power gain VDS = 50 V; f1 = 860 MHz; f2 = 860.1 MHz 20 21 dB
ηD drain efficiency VDS = 50 V; IDq = 0.65 A; f1 = 860 MHz; f2 = 860.1 MHz 42 46 %
PL(AV) average output power f1 = 860 MHz; f2 = 860.1 MHz 150 W
IMD3 third-order intermodulation distortion VDS = 50 V; IDq = 0.65 A; f1 = 860 MHz; f2 = 860.1 MHz -32 -28 dBc

Package / Packing

All type numbers in the table below are not recommended for design-in.

Type number Package Outline version Reflow-/Wave
Packing Product status Marking Orderable part number,
(Ordering code (12NC))
sot1121a_po Bulk Pack Active Standard Marking BLF884P,112
(9340 656 55112)

Pinning info

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


All type numbers in the table below are not recommended for design-in.

Type number Orderable part number Chemical content RoHS / RHF Leadfree conversion date MSL MSL LF
BLF884P BLF884P,112 BLF884P Always Pb-free 1 1
Quality and reliability disclaimer

Ordering & availability

Type number Ordering code (12NC) Orderable part number Distributor Buy online Samples
BLF884P 9340 656 55112 BLF884P,112 RFMW Buy Request samples
DigiKey Buy

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