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Schottky Barrier Diodes (SBD)
MA3U749
Silicon epitaxial planar type (cathode common)
Unit : mm
For switching power supply I Features
* Surface mounting type small U-type package * Low forward rise voltage VF * Cathode common dual type
6.5 0.1 5.3 0.1 4.35 0.1
2.3 0.1 0.5 0.1
7.3 0.1
1.8 0.1
2.5 0.1
0.8 max.
0.93 0.1
1.0 0.1 0.1 0.05 0.5 0.1
I Absolute Maximum Ratings Ta = 25C
Parameter Repetitive peak reverse voltage Average forward current Non-repetitive peak forward surge current* Junction temperature Storage temperature Symbol VRRM IF(AV) IFSM Tj Tstg Rating 40 5 40 -40 to +125 -40 to +125 Unit V mA
1
0.75 0.1 2.3 0.1 4.6 0.1
2
3
A C C
1 : Anode 2 : Cathode (Common) 3 : Anode U-Type Package
Note) * : Half sine-wave: 10 ms/cycle
I Electrical Characteristics Ta = 25C
Parameter Reverse current (DC) Forward voltage (DC) Thermal resistance* Symbol IR VF Rth(j-c) Conditions VR = 40 V, TC = 25C IF = 2.5 A, TC = 25C Between junction and case Min Typ Max 1 0.55 12.5 Unit mA V C/W
Note) 1. Rated input/output frequency: 1 000 MHz 2. * : TC = 25C
1.0 0.2
1
MA3U749
IF V F
104 Ta = 125C 103 - 20C 75C 25C
0.8 0.7
Schottky Barrier Diodes (SBD)
VF Ta
105
IR VR
104
Forward current IF (mA)
Forward voltage VF (V)
0.6 IF = 5 A 0.5 0.4 0.3 0.2 0.1
102
Reverse current IR (A)
Ta = 125C
103 75C 102
2.5 A 1A
10
1
10
25C
10-1
0
0.2
0.4
0.6
0.8
1.0
1.2
0 -40
1
0 40 80 120 160 200
0
10
20
30
40
50
60
Forward voltage VF (V)
Ambient temperature Ta (C)
Reverse voltage VR (V)
IR T a
105 800 700
Ct VR
f = 1 MHz Ta = 25C
Reverse current IR (A)
VR = 45 V 20 V 10 V
Terminal capacitance Ct (pF)
104
600 500 400 300 200 100
103
102
10
1 -40
0 0 40 80 120 160 200
0
10
20
30
40
50
60
Ambient temperature Ta (C)
Reverse voltage VR (V)
2

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