BLF244
Download datasheetThis device has been transferred from Ampleon to Rochester Electronics.
VHF power MOS transistor
Silicon N-channel enhancement mode vertical D-MOS transistor designed for large signal amplifier applications in the VHF frequency range. The transistor is encapsulated in a 4-lead SOT123A flange package, with a ceramic cap. All leads are isolated from the flange. Matched gate-source voltage (VGS) groups are available on request.
Features and benefits
- High power gain
- Low noise figure
- Easy power control
- Good thermal stability
- Withstands full load mismatch
- Gold metallization ensures excellent reliability
Applications
- Large signal amplifier applications in the VHF frequency range
Parametrics
| Symbol | Parameter | Conditions | Min | Typ/Nom | Max | Unit |
|---|---|---|---|---|---|---|
| frange | frequency range | 25 | 175 | MHz | ||
| PL(1dB) | nominal output power at 1 dB gain compression | 15 | W | |||
| Test signal: CW | ||||||
| Gp | power gain | PL = 15 W; VDS = 28 V | 13 | 17 | dB | |
| ηD | drain efficiency | PL = 15 W; VDS = 28 V; f = 175 MHz; IDq = 25 mA | 50 | 65 | % | |
| PL | output power | 15 | W | |||
Package / Packing
| Type number | Package | Outline version | Packing | Product status | Marking |
Orderable part number, (Ordering code (12NC)) |
|---|---|---|---|---|---|---|
| BLF244 | CRFM4 (SOT123A) |
sot123a_po | Bulk Pack | Transferred | Standard Marking |
BLF244,112 (9338 170 40112) |
Pinning info
| Pin | Symbol | Description | Simplified outline | Graphic symbol |
|---|---|---|---|---|
| 1 | D | drain |
|
|
| 2 | S | source | ||
| 3 | G | gate | ||
| 4 | S | source |
Ordering & availability
| Type number | Ordering code (12NC) | Orderable part number | Distributor | Buy online | Samples |
|---|---|---|---|---|---|
| BLF244 | 9338 170 40112 | BLF244,112 | Rochester Electronics | Buy | Not available |
Documentation
| Title | Type | Date | |
|---|---|---|---|
| VHF power MOS transistor | Data sheet | 2015-11-30 | |
| 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 | |
|---|---|---|---|
| BLF244 12 5 V 25 mA S-parameter data | S-parameter | 2012-06-08 | |
| BLF244 28 V 25 mA S-parameter data | S-parameter | 2012-06-08 | |
| BLF244 14 V 25 mA S-parameter data | S-parameter | 2012-06-08 |