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 MCC
Features
* * *
omponents 21201 Itasca Street Chatsworth !"# $
% !"#
RB421D
Low VF ( VF=0.45V Typ at 100mA ) High reliability Small surface mounting type ( SMD3 )
0.1 Amp Surface Mount
Schottky Barrier Diode
Mechanical Data
* * * Case :SOT-346,Molded Plastic Low power rectification Silicon epitaxial planar
L A
40 Volts
SOT-346
Maximum Ratings
* * Operating Junction Temperature: 125C Storage Temperature: -40C to +125C
MCC Catalog Number RB421D Device Marking Maximum Recurrent Peak Reverse Voltage 40V Maximum RMS Voltage 28V Maximum DC Blocking Voltage 40V
S
2
3 1
B
3
CATHODE
2
ANODE
D G C H
DIMENSIONS INCHES DIM A B C D G H J K L S MIN .106 .051 .039 .014 .067 .000 .004 .008 .049 .089 MAX .122 .067 .051 .020 .091 .004 .010 .024 .065 .118 MIN 2.70 1.30 1.00 0.35 1.70 0.00 0.10 0.20 1.25 2.25 MM MAX 3.10 1.70 1.30 0.50 2.30 0.10 0.26 0.60 1.65 3.00 NOTE
J K
D3C
Electrical Characteristics @ 25C Unless Otherwise Specified
Average Forward Current Peak Forward Surge Current Maximum Forward Voltage RB421D Maximum DC Reverse Current At Rated DC Blocking Voltage IF(AV) IFSM 0.1A 1.0A TA = 25C 8.3ms, half sine
Suggested Solder Pad Layout
.031 .800 .039 1.000 0.098-0.118 2.5-3.0 .094 2.400 inches mm
0.55V VF 0.34V 30
I FM = 100mA IFM = 10mA TA = 25C TA = 25C VR=10V
IR
.037 .950 .037 .950
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MCC
RB421D
!Electrical characteristic curves (Ta = 25C)
CAPACITANCE BETWEEN TERMINALS : CT (pF)
1
10m
Typ. pulse measurement
Typ. pulse measurement
Ta=125C
100
REVERSE CURRENT : IR (A)
FORWARD CURRENT : IF (A)
100m
1m
10
Ta =1 25 C 75 C 25 C
10m
100
75C
-2 5C
1m
10
25C
1
100
1
10 0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.1 0
5
10
15
20
25
30
35
0.1 0
5
10
15
20
25
FORWARD VOLTAGE : VF (V)
REVERSE VOLTAGE : VR (V)
REVERSE VOLTAGE : VR (V)
Fig. 1 Forward characteristics
Fig. 2 Reverse characteristics
Fig. 3 Capacitance between terminals characteristics
100
Io CURRENT (%)
80 60 40 20 0 0
25
50
75
100
125
AMBIENT TEMPERATURE : Ta (C)
Fig. 4 Derating curve (mounting on glass epoxy PCBs)
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