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RB721Q-40
Diodes
Schottky barrier diode
RB721Q-40
!Applications High speed switching !External dimensions (Units : mm)
CATHODE BAND (BLACK)
!Features 1) Glass-sealed envelope for high reliability. (MSD) 2) Small pitch enables insertion on PCBs. 3) Low VF and low IR.
0.40.1
291
2.70.3
291
1.80.2
!Construction Silicon epitaxial planar
ROHM : MSD EIAJ : - JEDEC : DO-34
S Product identification number 2 - is stamped on body of main unit.
!Absolute maximum ratings (Ta=25C)
Parameter
Peak reverse voltage DC reverse voltage Mean rectifying current Peak forward surge current Junction temperature Storage temperature
60 Hz for 1
Symbol VRM VR IO IFSM Tj Tstg
Limits 40 40 30 200 125 -40~+125
Unit V V mA mA C C
!Electrical characteristics (Ta=25C)
Parameter
Forward voltage Reverse current Capacitance between terminals
Note) ESD sensitive product handling required.
Symbol VF IR CT
Min. - - -
Typ. - - 2.0
Max. 0.37 0.5 -
Unit V A pF IF=1mA VR=25V
Conditions
VR=1V, f=1MHz
RB721Q-40
Diodes
!Electrical characteristic curves (Ta=25C)
100m
FORWARD CURRENT : IF (A)
Typ. pulse measurement
REVERSE CURRENT : IR (A)
100
CAPACITANCE BETWEEN TERMINALS : CT (pF)
Typ. pulse measurement
C Ta=100 Ta=75C
100
10m
10
10
1m
1
Ta=50C
100
Ta =50 =2 5 C C
100n
Ta =7 5C Ta
Ta=25C
1
Ta= 0C Ta= -40 C
10
10n
1 0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
1n 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
10
REVERSE RECOVERY TIME : trr (ns)
5
IR=10mA Irr=1mA
100
Io CURRENT (%)
2 1 0.5
80 60 40 20 0 0
0.2 0.1 0
10
20
30
25
50
75
100
125
FORWARD CURRENT : IF (mA)
AMBIENT TEMPERATURE : Ta (C)
Fig.4 Reverse recovery time characteristics
Fig.5 Derating curve (mounting on glass epoxy PCBs)
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document use silicon as a basic material. Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.0

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