SDZ20V ZENER DIODE Small Signal Zener Diode General Description These diodes small signal Zener diodes, fabricated in planar technology, and packaged in small SOT-23 surface mounted device (SMD) packages. Features and Benefits Silicon epitaxial planar diode Low Zener impedance and low leakage current Standard Zener voltage tolerance is 4.3%. Full lead (Pb)-free device and RoHS compliant device Available in “Green” device SOT-23 Applications Voltage regulator Ordering Information Part Number Marking Code Package Packaging SDZ20V Y7 □ SOT-23 Tape & Reel Marking Information Y7 □ Y7 = Specific Device Code □ = Year & Week Code Marking Pinning Information Pin Description 1 Anode 2 Not Connected 3 Cathode Rev. date: 15-NOV-10 Simplified Outline KSD-D5C062-000 Graphic Symbol www.auk.co.kr 1 of 5 SDZ20V Absolute Maximum Ratings (Tamb=25℃, Unless otherwise specified) Characteristic Symbol Ratings Unit Power dissipation 1) PD 250 mW Operating junction temperature Tj 150 C Tstg -55 ~ 150 C Symbol Ratings Unit Rth(j-a) 500 C/W Storage temperature range 1) Device mounted on FR-4 board with recommended pad layout. Thermal Characteristics (Tamb=25℃, Unless otherwise specified) Characteristic Thermal resistance, junction to ambient 1) 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 Zener voltage VZ IZ=5mA 19.1 - 20.9 V Dynamic impedance ZZT IZ=5mA - - 48 KNEE dynamic impedance ZZK IZ=0.25mA - - 600 VR=14V - - 0.1 A Reverse leakage current Rev. date: 15-NOV-10 IR KSD-D5C062-000 www.auk.co.kr 2 of 5 SDZ20V Rating and Characteristic Curves Fig. 1) Typical Zener Characteristics Fig. 2) Zener voltage vs. Ambient Temperature Fig. 3) Typical Reverse Characteristics Fig. 4) Power Dissipation vs. Ambient Temperature Rev. date: 15-NOV-10 KSD-D5C062-000 www.auk.co.kr 3 of 5 SDZ20V Package Outline Dimensions ※ Recommend PCB solder land (Unit : mm) Rev. date: 15-NOV-10 KSD-D5C062-000 www.auk.co.kr 4 of 5 SDZ20V The AUK Corp. products are intended for the use as components in general electronic equipment (Office and communication equipment, 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 safety device, etc.). AUK Corp. cannot accept liability to any damage which may occur in case these AUK Corp. products were used in the mentioned equipments without prior consultation with AUK Corp.. Specifications mentioned in this publication are subject to change without notice. Rev. date: 15-NOV-10 KSD-D5C062-000 www.auk.co.kr 5 of 5