BLF573S
Download datasheetThis device has been transferred from Ampleon to Flip Electronics.
HF / VHF power LDMOS transistor
A 300 W LDMOS RF power transistor for broadcast applications and industrial, scientific and medical 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 (HF and VHF band)
- Compliant to Directive 2002/95/EC, regarding Restriction of Hazardous Substances
Applications
- Industrial, scientific and medical applications
- Broadcast transmitter 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 | 300 | W | |||
| Test signal: CW | ||||||
| Gp | power gain | PL = 300 W; VDS = 50 V | 26 | 27.2 | 28.4 | dB |
| RLin | input return loss | PL = 300 W; VDS = 50 V; IDq = 900 mA | -13 | -10 | dB | |
| ηD | drain efficiency | PL = 300 W; VDS = 50 V; f = 225 MHz; IDq = 900 mA | 67 | 70 | % | |
| PL | output power | 300 | W | |||
Package / Packing
| Type number | Package | Outline version | Packing | Product status | Marking |
Orderable part number, (Ordering code (12NC)) |
|---|---|---|---|---|---|---|
| BLF573S | ACC-780 (SOT502B) |
sot502b_po | Bulk Pack | Transferred | Standard Marking |
BLF573S,112 (9340 621 75112) |
Pinning info
| Pin | Symbol | Description | Simplified outline | Graphic symbol |
|---|---|---|---|---|
| 1 | D | drain |
|
|
| 2 | G | gate | ||
| 3 | S | souce |
Ordering & availability
| Type number | Ordering code (12NC) | Orderable part number | Distributor | Buy online | Samples |
|---|---|---|---|---|---|
| BLF573S | 9340 621 75112 | BLF573S,112 | Flip Electronics | Buy | Not available |
Documentation
| Title | Type | Date | |
|---|---|---|---|
| HF / VHF power LDMOS transistor | Data sheet | 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 | 2025-04-17 | |
| RF power application reports for ISM, broadcast, navigation and safety radio applications | Brochure | 2025-04-17 | |
| Packages for RF power transistors | Leaflet | 2024-10-25 |
Design support
| Title | Type | Date | |
|---|---|---|---|
| Printed-Circuit Board (PCB) BLF573(S) (Data sheet) | Design support | 2012-02-24 | |
| BLF573 Model for ADS 2016 (Keysight Advanced Design System) | Simulation model | 2017-01-16 | |
| 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 |