BLF1043

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: BLF640

UHF power LDMOS transistor

10 W LDMOS power transistor for base station applications at frequencies from HF to 1000 MHz.

Features and benefits

  • Easy power control
  • Excellent ruggedness
  • High power gain
  • Excellent thermal stability
  • Designed for broadband operation (HF to 1000 MHz)
  • No internal matching for broadband operation
  • SMD package

Applications

  • RF power amplifiers for GSM, EDGE and CDMA base stations
  • Multicarrier applications in the 800 MHz to 1000 MHz frequency range
  • Broadcast drivers

Parametrics

Symbol Parameter Conditions Min Typ/Nom Max Unit
frange frequency range 1 1000 MHz
PL(1dB) nominal output power at 1 dB gain compression 10 W
Test signal: CW
Gp power gain PL = 10 W; VDS = 26 V 16.5 dB
ηD drain efficiency VDS = 26 V; f = 960 MHz; IDq = 85 mA 38 %
IMD3 third-order intermodulation distortion VDS = 26 V; IDq = 85 mA -25 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))
BLF1043 CDIP2
(SOT538A)
sot538a_po Reel 11¼" Q1/T1 in LargePack Discontinued Standard Marking BLF1043,135
(9340 557 08135)
Bulk Pack Discontinued Standard Marking BLF1043,112
(9340 557 08112)

Discontinuation information

Type number Ordering code (12NC) Last-time buy date Last-time delivery date Replacement product DN Notice Status Comments
BLF1043 9340 557 08135 2014-03-31 2014-06-30 BLF640 Ampleon-DN_201306022DN Full Withdrawal
BLF1043 9340 557 08112 2014-03-31 2014-06-30 BLF640 Ampleon-DN_201306022DN Full Withdrawal

Pinning info

Pin Symbol Description Simplified outline Graphic symbol
1 D drain
2 G gate
3 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
BLF1043 9340 557 08135 BLF1043,135 DigiKey Buy Not available
RFMW Buy
BLF1043 9340 557 08112 BLF1043,112 DigiKey Buy Not available
RFMW Buy

Design support

Title Type Date
BLF1043 28V 50mA S-parameter Data S-parameter 2012-07-22