BLF878

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: BLF888D

UHF power LDMOS transistor

A 300 W LDMOS RF power transistor for broadcast transmitter applications and industrial applications. The transistor can deliver 300 W broadband over the full UHF band from 470 MHz to 860 MHz. The excellent ruggedness and broadband performance of this device makes it ideal for digital transmitter applications.

Features and benefits

  • Excellent ruggedness
  • High power gain
  • Excellent reliability
  • High efficiency
  • Good thermal stability
  • Easy power control
  • Integrated ESD protection
  • Internal input and output matching
  • Advanced flange material for optimum thermal behavior and reliability
  • Compliant to Directive 2002/95/EC, regarding Restriction of Hazardous Substances

Applications

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

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 300 W
Test signal: CW
Gp power gain PL = 300 W; VDS = 42 V; f1 = 860 MHz; f2 = 860.1 MHz 18 21 dB
ηD drain efficiency VDS = 42 V; f = 860 MHz; IDq = 1400 mA 42 46 %
PL(PEP) output power 300 W
IMD3 third-order intermodulation distortion VDS = 42 V; IDq = 1400 mA -35 -31 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))
BLF878 CDFM2
(SOT979A)
sot979a_po Bulk Pack Discontinued Standard Marking BLF878,112
(9340 617 88112)

Discontinuation information

Type number Ordering code (12NC) Last-time buy date Last-time delivery date Replacement product DN Notice Status Comments
BLF878 9340 617 88112 2016-03-31 2016-06-30 BLF888D Ampleon-DN_201506035DN Full Withdrawal Replacement: BLF879P/BLF888A/B/D

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
Quality and reliability disclaimer

Ordering & availability

Type number Ordering code (12NC) Orderable part number Distributor Buy online Samples
BLF878 9340 617 88112 BLF878,112 RFMW Buy Not available
DigiKey Buy

Design support