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. φ0.4±0.1 29±1 ROHM : MSD EIAJ : − JEDEC : DO-34 !Construction Silicon epitaxial planar 29±1 2.7±0.3 S Product identification number 2 − is stamped on body of main unit. !Absolute maximum ratings (Ta=25°C) Symbol Limits Unit Peak reverse voltage VRM 40 V DC reverse voltage VR 40 V Parameter IO 30 mA IFSM 200 mA Junction temperature Tj 125 °C Storage temperature Tstg −40~+125 °C Mean rectifying current Peak forward surge current∗ ∗ 60 Hz for 1 !Electrical characteristics (Ta=25°C) Parameter Symbol Min. Typ. Max. Forward voltage VF − − 0.37 V IF=1mA Reverse current IR − − 0.5 µA VR=25V Capacitance between terminals CT − 2.0 − pF VR=1V, f=1MHz Note) ESD sensitive product handling required. φ1.8±0.2 Unit Conditions RB721Q-40 Diodes 100µ REVERSE CURRENT : IR (A) Typ. pulse measurement 10m 1m 1µ 0 Ta =50 ° =2 5° C C 10µ 0.1 Ta= 0°C Ta= −40 °C 100µ Ta =7 5°C Ta FORWARD CURRENT : IF (A) 100m 0.2 0.3 0.4 0.5 0.6 CAPACITANCE BETWEEN TERMINALS : CT (pF) !Electrical characteristic curves (Ta=25°C) Typ. pulse measurement °C Ta=100 10µ Ta=75°C 1µ Ta=50°C 100n Ta=25°C 10n 1n 0 0.7 5 10 15 20 25 30 35 REVERSE VOLTAGE : VR (V) FORWARD VOLTAGE : VF (V) Fig.2 Reverse characteristics Fig.1 Forward characteristics IR=10mA Irr=1mA 5 100 Io CURRENT (%) REVERSE RECOVERY TIME : trr (ns) 10 2 1 0.5 60 40 20 0.2 0.1 0 80 10 20 30 0 0 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) 100 10 1 0.1 0 5 10 15 20 25 REVERSE VOLTAGE : VR (V) Fig.3 Capacitance between terminals characteristics 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