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Kexin |
SMD Type
Schottky Diodes
RB421D (KB421D)
■ Features
● Small surface mounting type
● Low reverse current and low forward voltage
● High reliability
SOT-23
2.9 +0.1
-0.1
0.4 +0.1
-0.1
3
12
0.95 +0.1
-0.1
1.9 +0.1
-0.1
Diodes
Unit: mm
0.1 +0.05
-0.01
■ Absolute Maximum Ratings Ta = 25℃
Parameter
Peak Reverse Voltage
DC Blocking Voltage
Average Rectified Output Current
Peak Forward Surge Current
Power Dissipation
Thermal Resistance Junction to Ambient
Junction Temperature
Storage Temperature range
Symbol
VRM
VR
Io
IFM
PD
RθJA
TJ
Tstg
Rating
40
40
0.1
1
250
400
125
-55 to 150
Unit
V
A
mW
℃/W
℃
■ Electrical Characteristics Ta = 25℃
Parameter
Reverse breakdown voltage
Forward voltage
Reverse voltage leakage current
Capacitance between terminals
Symbol
Test Conditions
VR IR= 100 uA
IF= 10mA
VF
IF= 100mA
IR VR=10 V
CT VR=10 V, f= 1 MHz
Min Typ Max Unit
40
0.34 V
0.55
30 uA
6 pF
■ Marking
Marking
D3C
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SMD Type
Diodes
Schottky Diodes
RB421D (KB421D)
■ Typical Characterisitics
Forward Characteristics
100
1000
Reverse Characteristics
100
Ta=100 ℃
10
10
1
Ta=25 ℃
0.1
1
0 100 200 300 400 500 600
FORWARD VOLTAGE VF (mV)
0.01
0
10 20 30
REVERSE VOLTAGE VR (V)
40
Capacitance Characteristics
40
Ta=25℃
f=1MHz
30
20
10
0
0 5 10 15 20
REVERSE VOLTAGE VR (V)
Power Derating Curve
300
250
200
150
100
50
0
0 25 50 75 100 125 150
AMBIENT TEMPERATURE Ta (℃)
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