Document
JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
SOT-523 Plastic-Encapsulate Diode
MMBD4148AT/CT/ST SWITCHING DIODE
FEATURES z Small Surface Mounting Type z For General Purpose Switching Applications z Fast Switching Speed z High Conductance
MMBD4148AT
MMBD4148CT
MMBD4148ST
SOT-523
MARKING: KA3 MARKING: KA4
KA3 KA4
MARKING:KA5
KA5 KA5
Solid dot = Green molding compound device, if none, the normal device
MAXIMUM RATINGS ( Ta=25℃ unless otherwise noted )
Symbol
Parameter
Value
VRM No-Repetitive Peak Reverse Voltage
100
VRWM
Working Peak Reverse Voltage
75
VR(RMS)
RMS Reverse Voltage
53
IO Continuous Forward Current
150
IFSM Non-repetitive Peak Forward Surge Current @ t=8.3ms
2
PD Power Dissipation
150
RθJA
Thermal Resistance from Junction to Ambient
833
Tj Junction Temperature
150
Tstg Storage Temperature
-55~+150
ELECTRICAL CHARACTERISTICS(Ta=25℃ unless otherwise specified)
Parameter
Symbol
Test conditions
Min
Reverse voltage
V(BR)
IR=10uA
75
Reverse current
VR=75V IR
VR=20V
IF=1mA
Forward voltage
IF=10mA VF
IF=50mA
IF=150mA
Total capacitance
Ctot VR=0,f=1MHz
Reverse recovery time
trr IF= IR=10mA, Irr=0.1×IR,RL=100Ω
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Unit V V V mA A
mW ℃/W
℃ ℃
Typ Max
1 25 0.715 0.855 1 1.25 2 4
Unit V µA nA V V V V pF ns
B,Nov,2014
REVERSE CURRENT I (nA) R
FORWARD CURRENT I (mA) F
T a
=100℃
Typical Characteristics
Forward Characteristics
200 100
10
1
T a
=25℃
10000 1000 100 10
Reverse Characteristics
T =100℃ a
T =25℃ a
0.1 0.0
0.4 0.8 1.2
FORWARD VOLTAGE V (V) F
1.6
1 0 20 40 60 75
REVERSE VOLTAGE V (V) R
CAPACITANCE BETWEEN TERMINALS C (pF)
T
POWER DISSIPATION P (mW) D
Capacitance Characteristics
1.6 T =25℃
a
f=1MHz 1.4
1.2
1.0
0.8
0.6 0 4 8 12 16 20
REVERSE VOLTAGE V (V) R
Power Derating Curve
200
150
100
50
0 0 25 50 75 100 125 150
AMBIENT TEMPERATURE T (℃) a
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B,Nov,2014
SOT-523 Package Outline Dimensions
SOT-523 Suggested Pad Layout
Symbol
A A1 A2 b1 b2 c D E E1 e e1 L L1 θ
Dimensions In Millimeters
Min.
Max.
0.700
0.900
0.000
0.100
0.700
0.800
0.150
0.250
0.250
0.350
0.100
0.200
1.500
1.700
0.700
0.900
1.450
1.750
0.500 TYP.
0.900
1.100
0.400 REF.
0.260
0.460
0° 8°
Dimensions In Inches
Min.
Max.
0.028
0.035
0.000
0.004
0.028
0.031
0.006
0.010
0.010
0.014
0.004
0.008
0.059
0.067
0.028
0.035
0.057
0.069
0.020 TYP.
0.035
0.043
0.016 REF.
0.010
0.018
0° 8°
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B,Nov,2014
SOT-523 Tape and Reel
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