
BLF879PS
Download datasheet This product has been discontinued.Click here for discontinuation information.
BLF879PS
Download datasheetUHF 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
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
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 |
Documentation
Title | Type | Date | |
---|---|---|---|
UHF power LDMOS transistor | Data sheet | 2015-12-07 | |
Measurement results of a demo board for 470-860 MHz with 1x BLF879P | Report | 2015-10-05 | |
Mounting and Soldering of RF transistors in Air Cavity Packages | Application note | 2022-02-15 | |
RF Power Solutions for Broadcast Industrial, Scientific and Medical Aerospace & Defense Cooking and Defrosting | Brochure | 2022-05-30 |
Design support
Title | Type | Date | |
---|---|---|---|
PCB Design BLF879P (Data sheet) | Design support | 2012-02-24 | |
Ampleon Model Library for Microwave Office® | Simulation model | 2020-11-11 | |
Ampleon Model Library Manual for Microwave Office® | Simulation model | 2020-11-11 | |
Ampleon Simulation Example for Microwave Office® | Simulation model | 2020-11-11 |