Datasheet

 Semiconductor Components Industries, LLC, 2000
November, 2000 – Rev. 2
1 Publication Order Number:
BSS138LT1/D
BSS138LT1
Preferred Device
Power MOSFET
200 mAmps, 50 Volts
N–Channel SOT–23
Typical applications are dc–dc converters, power management in
portable and battery–powered products such as computers, printers,
PCMCIA cards, cellular and cordless telephones.
• Low Threshold Voltage (V
GS(th)
: 0.5V...1.5V) makes it ideal for low
voltage applications
• Miniature SOT–23 Surface Mount Package saves board space
MAXIMUM RATINGS (T
A
= 25°C unless otherwise noted)
Rating
Symbol Value Unit
Drain–to–Source Voltage V
DSS
50 Vdc
Gate–to–Source Voltage – Continuous V
GS
± 20 Vdc
Drain Current
– Continuous @ T
A
= 25°C
– Pulsed Drain Current (t
p
≤ 10 µs)
I
D
I
DM
200
800
mA
Total Power Dissipation @ T
A
= 25°C P
D
225 mW
Operating and Storage Temperature
Range
T
J
, T
stg
– 55 to
150
°C
Thermal Resistance – Junction–to–Ambient R
θJA
556 °C/W
Maximum Lead Temperature for Soldering
Purposes, for 10 seconds
T
L
260 °C
3
1
2
Device Package Shipping
ORDERING INFORMATION
BSS138LT1 SOT–23 3000 Tape & Reel
N–Channel
SOT–23
CASE 318
STYLE 21
http://onsemi.com
W
MARKING
DIAGRAM
J1
W = Work Week
PIN ASSIGNMENT
3
21
Drain
Gate
2
1
3
Source
BSS138LT3 SOT–23 10,000 Tape & Reel
200 mAMPS
50 VOLTS
R
DS(on)
= 3.5 
Preferred devices are recommended choices for future use
and best overall value.