Linear Integrated Systems PN/SST4391 Single N-Channel JFET Switches

Linear Integrated Systems PN/SST4391 Single N-Channel JFET Switches are a direct replacement for the Siliconix-Vishay equivalent parts. These switches support advanced screening options that are available for diverse product lineups. The PN/SST4391 N-Channel switches feature 350mW(T_C=25°C) continuous power dissipation, a -40V gate to drain or source voltage, and a 50mA gate current. These switches operate from -55°C to 150°C temperature range and are available in TO-92 3L, TO-18 3L, SOT-23 3L, DFN 8L package, and as bare die. The PN/SST4391 N-Channel switches are ideal for low noise, high gain, low resistance switching, and amplifier applications.

Features

Replacement for Siliconix-Vishay equivalent parts
-40V gate to source breakdown voltage (I_G=-1µA, V_DS=0V)
Drain to source on voltage:
- 0.25V (V_GS=0V, I_D=3mA)
- 0.3V (V_GS=0V, I_D=6mA)
- 0.35V (V_GS=0V, I_D =12mA)
1V maximum gate to source forward V=voltage (I_G=1mA, V_DS=0V)
30Ω maximum drain to source on-resistance (V_GS=0V, I_D=1mA)
Drain to source saturation current (V_DS=20V, V_GS=0V):
- 50mA to 165mA (PN)
- 50mA (SST)
Gate leakage current (V_GS=-20V, V_DS=0V):
- -100pA maximum (SST)
- -1000pA maximum (PN)
-5pA gate operating current (V_DG=15V, I_D=10mA)
6mS forward transconductance (V_DS=20V, I_D=1mA, f=1kHz)

25μS output conductance (V_DS=20V, I_D=1mA, f=1kHz)
Input capacitance (V_DS=20V, V_GS=0V, f=1MHz):
- 12pF (16pF maximum) (PN)
- 13pF (SST)
Reverse transfer capacitance:
- V_DS=0V, V_GS=-5V, f=1MHz
  - 3.5pF (PN)
  - 3.6pF (SST)
- V_DS=0V, V_GS=-7V, f=1MHz
  - 3.4pF (PN)
  - 3.5pF (SST)
- V_DS=0V, V_GS=-12V, f=1MHz
  - 3pF (5pF maximum) (PN)
  - 3.1pF (SST)