DIODS BSS138-7 Datasheet
N-CHANNEL ENHANCEMENT MODE FIELD EFFECT
Drai
Features
· Low On-Resistance
· Low Gate Threshold Voltage
· Low Input Capacitance
· Fast Switching Speed
· Low Input/Output Leakage
Mechanical Data
· Case: SOT-23, Molded Plastic
· Case Material - UL Flammability Classification
Rating 94V-0
· Moisture sensitivity: Level 1 per J-STD-020A
· Terminals: Solderable per MIL-STD-202,
Method 208
· Terminal Connections: See Diagram
· Marking (See Page 2): K38
· Ordering & Date Code Information: See Page 2
· Weight: 0.008 grams (approx.)
Maximum Ratings
@ TA = 25°C unless otherwise specified
E
G
D
TOP VIEW
G
H
Gate
BSS138
TRANSISTOR
SOT-23
A
B
C
S
D
J
n
Source
K
L
M
Dim Min Max
A
0.37 0.51
B
1.20 1.40
C
2.30 2.50
D
0.89 1.03
E
0.45 0.60
G
1.78 2.05
H
2.80 3.00
J
0.013 0.10
K
0.903 1.10
L
0.45 0.61
M
0.085 0.180
a
0° 8°
All Dimensions in mm
Characteristic Symbol BSS138 Units
Drain-Source Voltage
Drain-Gate Voltage RGS£ 20KW
Gate-Source Voltage Continuous
Drain Current Continuous
Power Dissipation (Note 1)
Thermal Resistance, Junction to Ambient (Note 1)
Operating and Storage Temperature Range
Electrical Characteristics
@ TA = 25°C unless otherwise specified
V
V
V
R
T
j,TSTG
DSS
DGR
GSS
I
D
P
qJA
d
50 V
50 V
±20 V
200
300 mW
417 °C/W
-55 to +150
Characteristic Symbol Min Typ Max Unit Test Condition
OFF CHARACTERISTICS (Note 2)
Drain-Source Breakdown Voltage
Zero Gate Voltage Drain Current
Gate-Body Leakage
BV
I
DSS
I
GSS
DSS
50 75 ¾ V
¾¾0.5
µA
¾¾±100 nA
= 0V, ID = 250mA
V
GS
VDS= 50V, VGS = 0V
VGS = ±20V, VDS= 0V
ON CHARACTERISTICS (Note 2)
Gate Threshold Voltage
Static Drain-Source On-Resistance
Forward Transconductance
V
GS(th)
R
DS (ON)
g
0.5 1.2 1.5 V
¾ 1.4 3.5 W
100 ¾¾mS
FS
V
DS=VGS
VGS = 10V, ID = 0.22A
VDS=25V, ID = 0.2A, f = 1.0KHz
, ID =-250mA
DYNAMIC CHARACTERISTICS
Input Capacitance
Output Capacitance
Reverse Transfer Capacitance
C
iss
C
oss
C
rss
¾¾50 pF
¾¾25 pF
¾¾8.0 pF
V
= 10V, VGS= 0V
DS
f = 1.0MHz
SWITCHING CHARACTERISTICS
t
D(ON)
t
D(OFF)
¾¾20 ns
¾¾20 ns
= 30V, ID = 0.2A,
V
DD
= 50W
R
GEN
Turn-On Delay Time
Turn-Off Delay Time
Notes: 1. Device mounted on FR-5 PCB 1.0 x 0.75 x 0.062 inch pad layout as shown on Diodes, Inc. suggested pad layout AP02001,
which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
2. Short duration test pulse used to miminize self-heating effect.
DS30144 Rev. 6 - 2 1 of 5 BSS138
www.diodes.com
mA
°C
Ordering Information
0.6
0.8
(Note 3)
Device
BSS138-7
Packaging Shipping
SOT-23 3000/Tape & Reel
Notes: 3. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Marking Information
K38 = Product Type Marking Code
YM = Date Code Marking
Y = Year ex: N = 2002
M = Month ex: 9 = September
YM
2005 2006 2007 2008 2009
ST U VW
Aug Sep Oct Nov Dec
89 OND
V = 3.5V
GS
V = 3.25V
GS
Date Code Key
Year 1998 1999 2000 2001 2002 2003 2004
Code
Month Jan Feb March Apr May Jun Jul
Code
K38
JKLMNPR
1234 567
T = 25° C
j
0.5
0.7
0.6
0.5
0.4
0.3
I , DRAIN-SOURCE CURRENT (A)
0.4
0.3
0.2
D
V = 3.0V
GS
V = 2.75V
GS
V = 2.5V
GS
0.1
0
0
2
1
Fig. 1 Drain-Source Current vs. Drain-Source Voltage
3
V , DRAIN-SOURCE VOLTAGE (V)
DS
5
6
4
V = 1V
DS
7
9
8
10
-55°C
25°C
150°C
0.2
D
I , DRAIN-SOURCE CURRENT (A)
0.1
0
0
0.5
1
1.5
V , GATE-SOURCE VOLTAGE (V)
GS
2
2.5
3.5
3
4
4.5
Fig. 2 Transfer Characteristics
DS30144 Rev. 6 - 2 2 of 5 BSS138
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