BLF879PS

BLF879PS

Download datasheet This product has been discontinued.
Click here for discontinuation information.
This product has been discontinued. Click here for discontinuation information.
The replacement is: BLF989

UHF power LDMOS transistor

A 500 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) = 0.15 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

Applications

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

Downloads

Datasheet
All models
All documentation

All documents

Design tool

RF Power Lifetime Calculator

Transistor:
BLF879PS

UHF power LDMOS transistor

°C

Parametrics

Symbol Parameter Conditions Min Typ/Nom Max Unit
frange frequency range 470 860 MHz
PL(1dB) nominal output power at 1 dB gain compression 500 W
Test signal: CW
Gp power gain VDS = 42 V; f1 = 860 MHz; f2 = 860.1 MHz 20 21 dB
ηD drain efficiency VDS = 42 V; IDq = 1.3 A; f1 = 860 MHz; f2 = 860.1 MHz 43 47 %
PL(AV) average output power f1 = 860 MHz; f2 = 860.1 MHz 200 W
IMD3 third-order intermodulation distortion VDS = 42 V; IDq = 1.3 A; f1 = 860 MHz; f2 = 860.1 MHz -33 -29 dBc

Package / Packing

All type numbers in the table below are discontinued.

Type number Package Outline version Reflow-/Wave
soldering
Packing Product status Marking Orderable part number,
(Ordering code (12NC))
BLF879PS SOT539B
(SOT539B)
sot539b_po Bulk Pack Discontinued Standard Marking BLF879PS,112
(9340 670 74112)

Discontinuation information

Type number Ordering code (12NC) Last-time buy date Last-time delivery date Replacement product DN Notice Status Comments
BLF879PS 9340 670 74112 2019-03-31 2019-06-30 BLF989 201806003DN Full Withdrawal Replacement: BLF989

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

All type numbers in the table below are discontinued.

Type number Orderable part number Chemical content RoHS / RHF Leadfree conversion date MSL MSL LF
BLF879PS BLF879PS,112 BLF879PS Always Pb-free 1 1
Quality and reliability disclaimer

Ordering & availability

Type number Ordering code (12NC) Orderable part number Distributor Buy online Samples
BLF879PS 9340 670 74112 BLF879PS,112 RFMW Buy Not available
DigiKey Buy

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