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Schottky Barrier Diodes (SBD)
MA3D749, MA3D749A (MA7D49, MA7D49A)
Silicon epitaxial planar type (cathode common)
Unit : mm
For switching power supply
15.0 0.5
9.9 0.3
3.0 0.5
4.6 0.2 2.9 0.2
I Features
* Low forward rise voltage VF * TO-220D (Full-pack package) with high dielectric breakdown voltage > 5.0 kV * Easy-to-mount, caused by its V cut lead end
3.2 0.1
13.7 0.2 4.2 0.2
1.4 0.2 1.6 0.2 0.8 0.1 2.54 0.3 3 5.08 0.5
2.6 0.1
0.55 0.15
I Absolute Maximum Ratings Ta = 25C
1 2
Parameter Repetitive peak reverse voltage MA3D749 MA3D749A
Symbol VRRM IF(AV) IFSM Tj Tstg
Rating 40 45 5 90 -40 to +125 -40 to +125
Unit V
Average forward current Non-repetitive peak forward surge current* Junction temperature Storage temperature
A A C C
1 : Anode 2 : Cathode 3 : Anode TO-220D Package
Internal Connection
Note) * : Half sine-wave; 10 ms/cycle
1 2 3
I Electrical Characteristics Ta = 25C
Parameter Reverse current (DC) MA3D749 MA3D749A Forward voltage (DC) Thermal resistance VF Rth(j-c) Symbol IR Conditions VR = 40 V, TC = 25C VR = 45 V, TC = 25C IF = 2.5 A, TC = 25C Direct current (between junction and case) Min Typ Max 1 1 0.55 3 V C/W Unit mA
Note) Rated input/output frequency: 200 MHz
Note) The part number in the parenthesis shows conventional part number.
628
Schottky Barrier Diodes (SBD)
IF V F
10 Ta = 125C 1 -20C 75C 25C
0.8 0.7
MA3D749, MA3D749A
VF Ta
105
IR VR
104
Forward voltage VF (V)
Forward current IF (A)
0.6 IF = 5 A 0.5 0.4 0.3 0.2 0.1
10-1
Reverse current IR (A)
Ta = 125C
103 75C 102
2.5 A 1A
10-2
10-3
10
25C
10-4
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
Average forward power PD(AV) (W)
f = 1 MHz Ta = 25C 8 7 6 5 4 3 2 1 0 0 10 20 30 40 50 60
PD(AV) IF(AV)
t0 t1
104
Reverse current IR (A)
VR = 45 V 20 V 10 V
Terminal capacitance Ct (pF)
600 500 400 300 200 100
103
t0 / t1 = 1/6 1/3 1/2 DC
102
10
1 -40
0
0
40
80
120
160
200
0
1
2
3
4
5
6
Ambient temperature Ta (C)
Reverse voltage VR
(V)
Average forward current IF(AV) (A)
IF(AV) TC
8
Average forward current IF(AV) (A)
7 6 5 4 1/6 3 2 1 0 20
t0 t1 t0 / t1 = 1/2 1/3 DC
40
60
80
100
120
140
Case temperature TC (C)
629
Request for your special attention and precautions in using the technical information and semiconductors described in this material
(1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. (2) The technical information described in this material is limited to showing representative characteristics and applied circuit examples of the products. It does not constitute the warranting of industrial property, the granting of relative rights, or the granting of any license. (3) The products described in this material are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). Consult our sales staff in advance for information on the following applications: * Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body. * Any applications other than the standard applications intended. (4) The products and product specifications described in this material are subject to change without notice for reasons of modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifications satisfy your requirements. (5) When designing your equipment, comply with the guaranteed values, in particular those of maximum rating, the range of operating power supply voltage and heat radiation characteristics. Otherwise, we will not be liable for any defect which may arise later in your equipment. Even when the products are used within the guaranteed values, redundant design is recommended, so that such equipment may not violate relevant laws or regulations because of the function of our products. (6) When using products for which dry packing is required, observe the conditions (including shelf life and after-unpacking standby time) agreed upon when specification sheets are individually exchanged. (7) No part of this material may be reprinted or reproduced by any means without written permission from our company.
Please read the following notes before using the datasheets
A. These materials are intended as a reference to assist customers with the selection of Panasonic semiconductor products best suited to their applications. Due to modification or other reasons, any information contained in this material, such as available product types, technical data, and so on, is subject to change without notice. Customers are advised to contact our semiconductor sales office and obtain the latest information before starting precise technical research and/or purchasing activities. B. Panasonic is endeavoring to continually improve the quality and reliability of these materials but there is always the possibility that further rectifications will be required in the future. Therefore, Panasonic will not assume any liability for any damages arising from any errors etc. that may appear in this material. C. These materials are solely intended for a customer's individual use. Therefore, without the prior written approval of Panasonic, any other use such as reproducing, selling, or distributing this material to a third party, via the Internet or in any other way, is prohibited.
2001 MAR

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