
March 2010
BS170 / MMBF170
N-Channel Enhancement Mode Field Effect Transistor
General Description
Features
These N-Channel enhancement mode field effect
transistors are produced using Fairchild's proprietary, high
cell density, DMOS technology. These products have been
designed to minimize on-state resistance while provide
rugged, reliable, and fast switching performance. They can
be used in most applications requiring up to 500mA DC.
These products are particularly suited for low voltage, low
current applications such as small servo motor control,
power MOSFET gate drivers, and other switching
applications.
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■
■
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High density cell design for low R DS(ON) .
Voltage controlled small signal switch.
Rugged and reliable.
High saturation current capability.
BS170
MMBF170
D
S
D
G
S
TO-92
G
SOT-23
Absolute Maximum Ratings
T A = 25°C unless otherwise noted
Symbol
V DSS
V DGR
V GSS
I D
T J , T STG
T L
Parameter
Drain-Source Voltage
Drain-Gate Voltage (R GS ≤ 1M Ω )
Gate-Source Voltage
Drain Current - Continuous
- Pulsed
Operating and Storage Temperature Range
Maximum Lead Temperature for Soldering
BS170
500
1200
MMBF170
60
60
± 20
500
800
- 55 to 150
300
Units
V
V
V
mA
° C
° C
Purposes, 1/16" from Case for 10 Seconds
Thermal Characteristics
T A = 25°C unless otherwise noted
Symbol
P D
R θ JA
Parameter
Maximum Power Dissipation
Derate above 25 ° C
Thermal Resistance, Junction to Ambient
BS170
830
6.6
150
MMBF170
300
2.4
417
Units
mW
mW/ ° C
° C/W
? 2010 Fairchild Semiconductor Corporation
BS170 / MMBF170 Rev. E2
1
www.fairchildsemi.com