BLF574
Download datasheetThis device has been transferred from Ampleon to Flip Electronics.
HF / VHF power LDMOS transistor
A 500 W to 600 W LDMOS power transistor for broadcast applications and industrial applications in the HF to 500 MHz band.
Features and benefits
- Easy power control
- Integrated ESD protection
- Excellent ruggedness
- High efficiency
- Excellent thermal stability
- Designed for broadband operation (10 MHz to 500 MHz)
- Compliant to Directive 2002/95/EC, regarding Restriction of Hazardous Substances
Applications
- Broadcast transmitter applications
- Industrial, scientific and medical applications
Parametrics
| Symbol | Parameter | Conditions | Min | Typ/Nom | Max | Unit |
|---|---|---|---|---|---|---|
| frange | frequency range | 10 | 500 | MHz | ||
| PL(1dB) | nominal output power at 1 dB gain compression | 600 | W | |||
| Test signal: CW | ||||||
| Gp | power gain | PL = 400 W; VDS = 50 V | 25 | 26.5 | 28 | dB |
| RLin | input return loss | VDS = 50 V | -20 | -13 | dB | |
| ηD | drain efficiency | PL = 400 W; VDS = 50 V; f = 225 MHz; IDq = 1000 mA | 66 | 70 | % | |
| PL | output power | 500 | W | |||
Package / Packing
| Type number | Package | Outline version | Packing | Product status | Marking |
Orderable part number, (Ordering code (12NC)) |
|---|---|---|---|---|---|---|
| BLF574 | SOT539A (SOT539A) |
sot539a_po | Bulk Pack | Transferred | Standard Marking |
BLF574,112 (9340 619 65112) |
Pinning info
| Pin | Symbol | Description | Simplified outline | Graphic symbol |
|---|---|---|---|---|
| 1 | D1 | drain1 |
|
|
| 2 | D2 | drain2 | ||
| 3 | G1 | gate1 | ||
| 4 | G2 | gate2 | ||
| 5 | S | source |
Ordering & availability
| Type number | Ordering code (12NC) | Orderable part number | Distributor | Buy online | Samples |
|---|---|---|---|---|---|
| BLF574 | 9340 619 65112 | BLF574,112 | Flip Electronics | Buy | Not available |
Documentation
| Title | Type | Date | |
|---|---|---|---|
| HF / VHF power LDMOS transistor | Data sheet | 2016-12-01 | |
| Using the BLF574 in the 88-108 MHz FM band | Application note | 2015-12-07 | |
| Mounting and soldering of RF transistors in air cavity packages | Application note | 2025-02-03 | |
| RF power solutions for ISM, broadcast, navigation and safety radio applications | Brochure | 2025-02-12 | |
| RF power application reports for ISM, broadcast, navigation and safety radio applications | Brochure | 2024-10-08 | |
| Packages for RF power transistors | Leaflet | 2024-10-25 |
Design support
| Title | Type | Date | |
|---|---|---|---|
| Printed-Circuit Board (PCB) R_10032 | Design support | 2012-08-16 | |
| Printed-Circuit Board (PCB) BLF574 (AN10714) | Design support | 2012-02-24 | |
| Printed-Circuit Board (PCB) BLF574 (Data sheet) | Design support | 2012-02-24 | |
| BLF574 Model for ADS (Keysight Advanced Design System) | Simulation model | 2017-01-04 | |
| Model Library for Cadence AWR Microwave Office® | Simulation model | 2023-01-02 | |
| Model Library Manual for Cadence AWR Microwave Office® | Simulation model | 2023-01-02 | |
| Simulation Example for Cadence AWR Microwave Office® | Simulation model | 2023-01-02 |