BF998 Transistor – N-Ch, MOSFET, 12V, 30mA, SOT-143B

Part Number: BF998

Function: 12V, 30mA, Silicon N-channel Dual-Gate MOSFET, Transistor

Package: SOT-143B Type

Manufacturer: NXP Semiconductors.

Image and Pinouts:

BF998 datasheet


The BF998 is 12V, 30mA, N-Channel MOSFET, Transistor.

Depletion type field effect transistor in a plastic microminiature SOT143B or SOT143R package with source and substrate interconnected.

The transistors are protected against excessive input voltage surges by integrated back-to-back diodes between gates and source.



1. Short channel transistor with high forward transfer admittance to input capacitance ratio

2. Low noise gain controlled amplifier up to 1 GHz.


Absolute maximum ratings ( Ta=25°C )

1. Drain-source voltage : VDS = 12 V

2. Drain current: ID = 30 mA

3. Total power dissipation : Ptot = 200 mW

4. Operating Temperature: Tj = 150°C

5. Storage Temperature: Tsg = -65 ~ +150°C


1. VHF and UHF applications with 12 V supply voltage, such as television tuners and professional communications equipment.


BF998 Datasheet PDF Download

BF998 pdf

Other data sheets are available within the file: BF998R