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Rev. date: 25-AUG-10 KSD-D5C028-002 www.auk.co.kr 1 of 5 SDS21WK SWITCHING DIODE High Voltage Switching Diode General Description Dual general-purpose switching diodes, fabricated in planar technology, and packaged in small SOT-23 surface mounted device (SMD) packages. Features and Benefits  Silicon epitaxial planar diode  High switching speed  Low forward drop voltage and low leakage current  “Green” device and RoHS compliant device  Available in full lead (Pb)-free device

Applications

 Ultra high speed switching application

Ordering Information

Part Number Marking Code Package Packaging SDS21WK J2K □ SOT-23 Tape & Reel Marking Information Pinning Information Pin Description Simplified Outline Graphic Symbol

1 Anode (Diode 1)

2 Anode (Diode 2)

3 Common Cathode

J2K = Specific Device Code □ = Year & Week Code Marking SOT-23 J2K □

Rev. date: 25-AUG-10 KSD-D5C028-002 www.auk.co.kr 2 of 5 Absolute Maximum Ratings (Tamb=25℃, Unless otherwise specified) Characteristic Symbol Ratings Unit Maximum repetitive peak reverse voltage VRM 250 V Continuous reverse voltage VR 200 V Maximum average forward rectified current IO 200 mA Maximum repetitive peak forward current IFM 400 mA Non-repetitive peak forward surge current(t=10ms) IFSM 1.7 A Power dissipation 1) PD 250 mW 1) Device mounted on FR-4 board with recommended pad layout. Thermal Characteristics (Tamb=25℃, Unless otherwise specified) Characteristic Symbol Ratings Unit Thermal resistance, junction to ambient 1) Rth(j-a) 500 C/W Operating junction temperature Tj 150 C Storage temperature range Tstg -55 ~ 150 C 1) Device mounted on FR-4 board with recommended pad layout. Electrical Characteristics (Tamb=25℃, Unless otherwise specified) Characteristic Symbol Test Condition Min. Typ. Max. Unit Reverse breakdown voltage VBR IF=100uA 250 - - V Forward drop voltage 2) VF IF=100mA - - 1.0 V IF=200mA - - 1.25 V Reverse leakage current 3) IR VR=200V - - 100 nA VR=200V, Ta=150℃ - - 100 uA Total capacitance CT VR=0V, f=1MHz - - 5 pF Reverse recovery time trr IF=IR=30mA, Irr=3mA, RL=100Ω - - 50 ns 2) Pulse test: tP≤380㎲, Duty cycle≤2% 3) Pulse test: tP≤5㎳, Duty cycle≤2% SDS21WK

Rev. date: 25-AUG-10 KSD-D5C028-002 www.auk.co.kr 3 of 5 Rating and Characteristic Curves SDS21WK Fig. 1) Typical Forward Characteristics Fig. 2) Typical Reverse Characteristics Fig. 4) Power Dissipation vs. Ambient Temperature Fig. 5) Reverse recovery time equivalent test circuit Fig. 3) Typical Total Capacitance Characteristics

Rev. date: 25-AUG-10 KSD-D5C028-002 www.auk.co.kr 4 of 5 Package Outline Dimensions SDS21WK ※ Recommend PCB solder land (Unit : mm)

Rev. date: 25-AUG-10 KSD-D5C028-002 www.auk.co.kr 5 of 5 The AUK Corp. products are intended for the use as components in general electronic equipment (Office and communication e quipment, measuring equipment, home appliance, etc.). Please make sure that you consult with us before you use these AUK Corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, transportation, combustion control, all types of safet y device, etc.). AUK Corp. cannot accept liability to any damage which may occur in case these AUK Corp. products were used in the mentioned equi pments without prior consultation with AUK Corp.. Specifications mentioned in this publication are subject to change without notice. SDS21WK