Document
JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
SOT-23 Plastic-Encap sulate Diodes
RB491D Schottky Barrier Diode
SOT-23
FEATURES z Small surface mounting type z Low reverse current and low forward voltage z High reliability
Marking: D2E
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3 2
Maximum Ratings and Electrical Characteristics, Single Diode @Ta=25℃
Parameter
Symbol
Peak reverse voltage
VRM
DC reverse voltage
VR
Mean rectifying current Non-repetitive Peak Forward Surge Current @t=8.3ms
Power dissipation
IF IFSM
PD
Thermal Resistance Junction to Ambient RθJA
Junction temperature
Tj
Storage temperature
Tstg
Limit 25 20 1 3 200 500 125
-55~+150
Electrical Ratings @Ta=25℃ Parameter
Forward voltage Reverse current
Symbol VF IR
Min Typ
Max 0.45 200
Unit V μA
Unit V V A A mW
℃/W ℃ ℃
Conditions IF=1A VR=20V
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D,Oct,2015
Typical Characteristics
FORWARD CURRENT I (mA) F
T a
=100
℃
Forward Characteristics
1000
100
10
1 0 100 200 300 400 500 600
FORWARD VOLTAGE V (mV) F
Capacitance Characteristics
250
T =25℃ a
f=1MHz
200
150
100
50
0 0 5 10 15 20
REVERSE VOLTAGE V (V) R
T a
=25℃
REVERSE CURRENT I (uA) R
Reverse Characteristics
10000
1000
T =100 ℃ a
100 T =75 ℃ a
10
T =25 ℃ a
1 0 5 10 15 20 25 30
REVERSE VOLTAGE V (V) R
Power Derating Curve
250
200
150
100
50
0 0 25 50 75 100 125
AMBIENT TEMPERATURE T (℃) a
CAPACITANCE BETWEEN TERMINALS C (pF)
T
POWER DISSIPATION P (mW) D
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D,Oct,2015
SOT-23 Package Outline Dimensions
SOT-23 Suggested Pad Layout
Symbol
A A1 A2 b c D E E1 e e1 L L1 θ
Dimensions In Millimeters
Min Max
0.900
1.150
0.000
0.100
0.900
1.050
0.300
0.500
0.080
0.150
2.800
3.000
1.200
1.400
2.250
2.550
0.950 TYP
1.800
2.000
0.550 REF
0.300
0.500
0° 8°
Dimensions In Inches
Min Max
0.035
0.045
0.000
0.004
0.035
0.041
0.012
0.020
0.003
0.006
0.110
0.118
0.047
0.055
0.089
0.100
0.037 TYP
0.071
0.079
0.022 REF
0.012
0.020
0° 8°
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DAu,Onc,2t,0210415
SOT-23 Tape and Reel
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DA,OJucnt,,22001154
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