DATA SH EET
Product specification
File under Discrete Semiconductors, SC07
December 1997
DISCRETE SEMICONDUCTORS
BSD22
MOSFET N-channel depletion
switching transistor
December 1997 2
Philips Semiconductors Product specification
MOSFET N-channel depletion switching transistor BSD22
DESCRIPTION
Symmetrical insulated-gate silicon
MOS field-effect transistor of the
n-channel depletion mode type.The
transistor is sealed in a SOT143
envelope and features a low
ON-resistance and low
capacitances.The transistor is
protected against excessive input
voltages by integrated back-to-back
diodes between gate and substrate.
Applications:
• analog and/or digital switch
• switch driver
• convertor
• chopper
PINNING
Note
1. Drain and source are
interchangeable
1 = substrate (b)
2 = source
3 = drain
4 = gate
Marking code: M32
Fig.1 Simplified outline and symbol.
handbook, halfpage
MAM389
Top view
g
d
b
s
21
34
QUICK REFERENCE DATA
Drain-source voltage V
DS
max. 20 V
Gate-source voltage V
GS
max.
+ 15 V
− 40 V
Drain current (DC) I
D
max. 50 mA
Total power dissipation up to T
amb
=25°CP
tot
max. 230 mW
Junction temperature T
j
max. 125 °C
Drain-source ON-resistance
V
GS
= 10 V; VSB= 0; ID= 1 mA R
DSon
max. 30 Ω
Feed-back capacitance
V
GS=VBS
= −5 V; VDS= 10 V; f = 1 MHz C
rss
typ. 0.6 pF