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Schottky Barrier Diodes (SBD)
MA21D38
Silicon epitaxial planar type
For high frequency rectification
1.250.10 0.600.10
Unit: mm
0.58+0.02 -0.03
Features
IF(AV) = 1 A rectification is possible Low forward voltag VF High non-repetitive peak forward surge voltage
1
1.900.10
2.500.10
0.300.10
Parameter Reverse voltage Maximum peak reverse voltage Forward current (Average) Non-repetitive peak forward surge current * Junction temperature Storage time
Symbol VR VRM IF(AV) IFSM Tj Tstg
Rating 30 30 1.0 20 125 -55 to +125
Unit V V
0.800.10 5
0 to 0.1
A A C C
1: Anode 2: Cathode
SMini2-F2 Package
Marking Symbol: 3U
Note) *: The peak-to-peak value in one cycle of 50 Hz sine wave (non-repetitive)
Electrical Characteristics Ta = 25C3C
Parameter Forward voltage Symbol VF1 VF2 VF3 Reverse current Terminal capacitance Reverse recovery time * IR Ct trr IF = 0.5 A IF = 0.7 A IF = 1.0 A VR = 30 V VR = 10 V, f = 1 MHz IF = IR = 100 mA, Irr = 10 mA, RL = 100 40 13 Conditions Min Typ 0.34 0.36 0.38 Max 0.38 0.40 0.42 100 A pF ns Unit V
Note) 1. Measuring methods are based on JAPANESE INDUSTRIAL STANDARD JIS C 7031 measuring methods for diodes. 2. This product is sensitive to electric shock (static electricity, etc.). Due attention must be paid on the charge of a human body and the leakage of current from the operating equipment. 3. *: trr measurement circuit
Bias Application Unit (N-50BU) tr 10% Input Pulse tp t IF trr t Output Pulse
A
VR Pulse Generator (PG-10N) Rs = 50 Wave Form Analyzer (SAS-8130) Ri = 50
90% tp = 2 s tr = 0.35 ns = 0.05 Irr = 10 mA IF = IR = 100 mA RL = 100
1.450.20
0 to 0.15
Absolute Maximum Ratings Ta = 25C
2
5 0.16+0.1 -0.06
Publication date: November 2004
SKH00138BED
1
MA21D38
MA21D38_IF-VF
MA21D38_IR-VR
MA21D38_Ct-VR
IF V F
104
IR V R
105
Ct VR
Ta = 25C f = 1 MHz
600
Ta = 150C 100C
Ta = 150C
104
103
125C
102
103
75C
Terminal capacitance Ct (pF)
25 30
Forward current IF (mA)
Reverse current IR (A)
10
75C 25C -20C
400
102
25C
10
1
-20C
1
200
10-1
10-2
10-1 0 0.4 0.8 1.2
0
5
10
15
20
0
0
10
20
30
Forward voltage VF (V) MA21D38_PR(AV)-VR
Reverse voltage VR (V) MA21D38_PF(AV)-IF(AV)
Reverse voltage VR (V) MA21D38_IF(AV)-Ta
PR(AV) VR
Reverse power dissipation (Average) PR(AV) (mW) Forward power dissipation (Average) PF(AV) (W)
3 000 0.6
PF(AV) IF(AV)
1.2
IF(AV) Ta
tp / T
DC
I tp T
tp T
2 000
tp T 0.4 DC 0.5 0.2 0.1
Forward current (Average) IF(AV) (A)
I
IF
0.8
0.5
Tj = 125C VR = 5 V Alumina board Copper foil 2.0 x 2.0 mm
1 000
DC 0.9 0.8 0.5
0.2
0.4
0.2
0.1
0
0
0
10
20
30
40
0
0.4
0.8
1.2
1.6
0
0
40
80
120
160
Reverse voltage VR (V)
MA21D38_Rth-t
Forward current (Average) IF(AV) (mA)
Ambient temperature Ta (C)
Rth t
103
Thermal resistance Rth (C/W)
Ta = 25C Alumina board Copper foil 2.0 x 2.0 mm
102
10
1
10-1 10-3
10-2
10-1
1
10
102
103
Time t (s)
2
SKH00138BED
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 technical information 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 circuits examples of the products. It neither warrants non-infringement of intellectual property right or any other rights owned by our company or a third party, nor grants any license. (3) We are not liable for the infringement of rights owned by a third party arising out of the use of the technical information as described in this material. (4) 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. (5) The products and product specifications described in this material are subject to change without notice for 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. (6) 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, take into the consideration of incidence of break down and failure mode, possible to occur to semiconductor products. Measures on the systems such as redundant design, arresting the spread of fire or preventing glitch are recommended in order to prevent physical injury, fire, social damages, for example, by using the products. (7) When using products for which damp-proof packing is required, observe the conditions (including shelf life and amount of time let standing of unsealed items) agreed upon when specification sheets are individually exchanged. (8) This material may be not reprinted or reproduced whether wholly or partially, without the prior written permission of Matsushita Electric Industrial Co., Ltd.
2003 SEP

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