Key facts
- Brand
- Philips
- Model
- BLF278
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-07-06
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Philips BLF278 VHF Push-Pull Power MOS Transistor Datasheet
The document is a product specification for the BLF278, a VHF push-pull power MOS transistor manufactured by Philips Semiconductors. It describes the device as a dual silicon N-channel enhancement mode vertical D-MOS transistor encapsulated in an SOT262A1 balanced flange package with two ceramic caps.
The datasheet provides comprehensive technical data including quick reference performance figures for CW class-B, class-C, and class-AB operations. It details limiting values such as maximum drain-source voltage (110 V) and total power dissipation (500 W), along with thermal characteristics and electrical parameters like transconductance and capacitance.
Philips BLF278 specifications
| Drain-source voltage (VDS) | 110 V |
|---|---|
| Gate-source voltage (VES) | +20 V |
| Drain current (DC) | 18 A |
| Total power dissipation | 500 W |
| Junction temperature (Tj) | 200 °C |
| Forward transconductance (Gfs) | 4.5 to 6.2 S |
| Drain-source on-state resistance (RDSon) | 0.2 to 0.3 Ohm |
| Input capacitance (Ciss) | 480 pF |
Source: Philips BLF278 VHF Push-Pull Power MOS Transistor Datasheet
All Philips BLF278 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum total power dissipation?
The maximum total power dissipation for both sections equally loaded at a mounting base temperature of 25 °C is 500 W.
From: Philips BLF278 VHF Push-Pull Power MOS Transistor Datasheet
What package type does the BLF278 use?
The transistor is encapsulated in a 4-lead, SOT262A1 balanced flange package with two ceramic caps.
From: Philips BLF278 VHF Push-Pull Power MOS Transistor Datasheet
What is the maximum drain‑source voltage rating?
The BLF278 is rated for a maximum drain‑source voltage of 125 V.
From: Philips BLF278 VHF Push-Pull Power MOS Transistor Datasheet
What is the maximum continuous drain current?
The device can handle up to 18 A of continuous drain current.
From: Philips BLF278 VHF Push-Pull Power MOS Transistor Datasheet