This device has been transferred from Ampleon to Rochester Electronics.
VHF push-pull power MOS transistor
Dual push-pull 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, SOT279A balanced flange package, with a ceramic cap. The mounting flange provides the common source connection for the transistors.
Features and benefits
- High power gain
- Easy power control
- Good thermal stability
- 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 | 30 | W | |||
| Test signal: CW | ||||||
| Gp | power gain | PL = 30 W; VDS = 28 V | 14 | 18 | dB | |
| ηD | drain efficiency | PL = 30 W; VDS = 28 V; f = 175 MHz; IDq = 25 mA | 55 | 65 | % | |
| PL | output power | 30 | W | |||
Package / Packing
| Type number | Package | Outline version | Reflow-/Wave soldering |
Packing | Product status | Marking |
Orderable part number, (Ordering code (12NC)) |
|---|---|---|---|---|---|---|---|
| BLF245B | CDFM4 (SOT279A) |
sot279a_po | Bulk Pack | Transferred | Standard Marking |
BLF245B,112 (9340 035 20112) |
Pinning info
| Pin | Symbol | Description | Simplified outline | Graphic symbol |
|---|---|---|---|---|
| 1 | D1 | drain1 |
|
|
| 2 | G1 | gate1 | ||
| 3 | G2 | gate2 | ||
| 4 | D2 | drain2 | ||
| 5 | S | source |
Ordering & availability
| Type number | Ordering code (12NC) | Orderable part number | Distributor | Buy online | Samples |
|---|---|---|---|---|---|
| BLF245B | 9340 035 20112 | BLF245B,112 | Rochester Electronics | Buy | Not available |
Ordering & availability
| Type number | Ordering code (12NC) | Orderable part number | Distributor | Buy online | Samples |
|---|---|---|---|---|---|
| BLF245B | 9340 035 20112 | BLF245B,112 | Rochester Electronics | Buy | Not available |
Documentation
| Title | Type | Date | |
|---|---|---|---|
| VHF push-pull power MOS transistor | Data sheet | 2015-11-30 | |
| Mounting and Soldering of RF transistors in Air Cavity Packages | Application note | 2022-09-15 | |
| RF Power solutions for Broadcast, Navigation and Safety Radio, Industrial, Scientific and Medical applications | Brochure | 2024-03-25 | |
| RF Power application reports for Broadcast, Navigation and Safety Radio, Industrial, Scientific and Medical applications | Brochure | 2024-02-06 | |
| Packages for RF Power Transistors | Leaflet | 2024-03-25 |
No documentation available.