DS30366 Rev. 6 - 2 1 of 4 BSS123
www.diodes.com ã Diodes Incorporated
BSS123
N-CHANNEL ENHANCEMENT MODE FIELD EFFECT
TRANSISTOR
Features
·Low Gate Threshold Voltage
·Low Input Capacitance
·Fast Switching Speed
·Low Input/Output Leakage
·High Drain-Source Voltage Rating
·Lead Free/RoHS Compliant (Note 2)
Maximum Ratings @ TA = 25°C unless otherwise specified
Characteristic Symbol BSS123 Units
Drain-Source Voltage VDSS 100 V
Drain-Gate Voltage RGS £ 20KWVDGR 100 V
Gate-Source Voltage Continuous VGSS ±20 V
Drain Current (Note 1) Continuous
Pulsed
ID
IDM
170
680 mA
Total Power Dissipation (Note 1) Pd300 mW
Thermal Resistance, Junction to Ambient (Note 1) RqJA 417 °C/W
Operating and Storage Temperature Range Tj, TSTG -55 to +150 °C
·Case: SOT-23
·Case Material: Molded Plastic. UL Flammability
Classification Rating 94V-0
·Moisture Sensitivity: Level 1 per J-STD-020C
·Terminals: Solderable per MIL-STD-202, Method 208
·Lead Free Plating (Matte Tin Finish annealed over Alloy 42
leadframe).
·Terminal Connections: See Diagram
·Marking: K23 (See Page 3)
·Ordering & Date Code Information: See Page 3
·Weight: 0.008 grams (approximate)
Mechanical Data
TCUDORP WEN
Note: 1. Part mounted on FR-4 board with recommended pad layout, which can be found on our website
at http://www.diodes.com/datasheets/ap02001.pdf.
2. No purposefully added lead.
SOT-23
Dim Min Max
A0.37 0.51
B1.20 1.40
C2.30 2.50
D0.89 1.03
E0.45 0.60
G1.78 2.05
H2.80 3.00
J0.013 0.10
K0.903 1.10
L0.45 0.61
M0.085 0.180
a0°8°
All Dimensions in mm
A
E
JL
TOP VIEW
M
BC
H
G
D
K
D
GS
Source
Gate
Drain
SPICE MODEL: BSS123
DS30366 Rev. 6 - 2 2 of 4 BSS123
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Characteristic Symbol Min Typ Max Unit Test Condition
OFF CHARACTERISTICS (Note 3)
Drain-Source Breakdown Voltage BVDSS 100 ¾ ¾ VVGS = 0V, ID = 250mA
Zero Gate Voltage Drain Current IDSS ¾¾1.0
10
µA
nA
VDS = 100V, VGS = 0V
VDS = 20V, VGS = 0V
Gate-Body Leakage, Forward IGSSF ¾¾50 nA VGS = 20V, VDS = 0V
ON CHARACTERISTICS (Note 3)
Gate Threshold Voltage VGS(th)0.8 1.4 2.0 V VDS = VGS, ID = 1mA
Static Drain-Source On-Resistance RDS (ON) ¾
¾
¾
¾
6.0
10 WVGS = 10V, ID = 0.17A
VGS = 4.5V, ID = 0.17A
Forward Transconductance gFS 80 370 ¾mS VDS = 10V, ID = 0.17A, f = 1.0KHz
Drain-Source Diode Forward Voltage VSD ¾0.84 1.3 V VGS = 0V, IS = 0.34A
DYNAMIC CHARACTERISTICS
Input Capacitance Ciss ¾29 60 pF
VDS = 25V, VGS = 0V
f = 1.0MHz
Output Capacitance Coss ¾10 15 pF
Reverse Transfer Capacitance Crss ¾26pF
SWITCHING CHARACTERISTICS
Turn-On Rise Time tr¾ ¾ 8 ns
VDD = 30V, ID = 0.28A,
RGEN = 50W, VGS = 10V
Turn-Off Fall Time tf¾ ¾ 16 ns
Turn-On Delay Time tD(ON) ¾¾8ns
Turn-Off Delay Time tD(OFF) ¾¾13 ns
Electrical Characteristics @ TA = 25°C unless otherwise specified
Note: 3. Short duration test pulse used to minimize self-heating effect.
TCUDORP WEN
0
0.2
0.7
01345
I , DRAIN-SOURCE CURRENT (A)
D
V , DRAIN-SOURCE VOLTAGE (V)
DS
Fig. 1 On-Region Characteristics
V = 4V
GS
2
0.6
0.5
0.1
0.3
0.4
V = 3V
GS
V = 10, 7, 6, 5V
GS
0.8
1.2
1.6
0.1 0.2
R , NORMALIZED
DS(ON)
DRAIN-SOURCE ON-RESISTANCE
I , DRAIN-SOURCE CURRENT (A)
D
Fig. 2 On-Resistance Variation with Gate Voltage
and Drain-Source Current
V = 4V
GS
2.0
2.4
0.3 0.4 0.5 0.6
V = 3V
GS
V = 5, 6, 7, 10V
GS
DS30366 Rev. 6 - 2 3 of 4 BSS123
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Month Jan Feb March Apr May Jun Jul Aug Sep Oct Nov Dec
Code 123456789OND
K23
YM
K23 = Product Type Marking Code
YM = Date Code Marking
Y = Year ex: N = 2002
M = Month ex: 9 = September
Marking Information
Notes: 4. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Device Packaging Shipping
BSS123-7-F SOT-23 3000/Tape & Reel
Ordering Information (Note 4)
TCUDORP WEN
0.4
0.8
1.2
-50 0 75 100 125 150
R NORMALIZED ON-RESISTANCE
DS(ON),
T , JUNCTION TEMPERATURE (ºC)
J
Fig. 4 On-Resistance Variation with Temperature
1.6
1.8
2.2
-25 25 50
0.6
1
1.4
2
V = 10V
GS
I = 170m
D
0.7
0.8
0.9
-50 0 75 100 125 150
V NORMALIZED THRESHOLD VOLTAGE
GS(th),
T , JUNCTION TEMPERATURE (ºC)
J
Fig. 3 Gate Threshold Variation with Temperature
1
1.1
1.2
-25 25 50
0
50
0515 20 25
C, CAPACITANCE (pF)
V , DRAIN-SOURCE VOLTAGE (V)
DS
Fig. 5 Typical Capacitance
10
40
30
10
20 Ciss
Coss
Crss
Year 2002 2003 2004 2005 2006 2007 2008 2009
Code NPRSTUVW
Date Code Key
DS30366 Rev. 6 - 2 4 of 4 BSS123
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IMPORTANT NOTICE
Diodes, Inc. and its subsidiaries reserve the right to make changes without further notice to any product herein to make corrections, modifications, enhance-
ments, improvements, or other changes. Diodes, Inc. does not assume any liability arising out of the application or use of any product described herein;
neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such
use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages.
LIFE SUPPORT
The products located on our website at www.diodes.com are not recommended for use in life support systems where a failure or malfunction of the
component may directly threaten life or cause injury without the express written approval of Diodes Incorporated.
