Rev. date: 18-DEC-12 KSD-D5C076-000 www.auk.co.kr
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SDZ18V
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
Applications
Voltage regulator
Ordering Information
Part Number Marking Code Package Packaging
SDZ18V U1□ SOT-23 Tape & Reel
Marking Information
Pinning Information
Pin Description Simplified Outline Graphic Symbol
1 Anode
2 Not Connected
3 Cathode
SOT-23
U1 = Specific Device Code
□ = Year & Week Code Marking
U1□
Rev. date: 18-DEC-12 KSD-D5C076-000 www.auk.co.kr
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Absolute Maximum Ratings (Tamb=25℃, Unless otherwi se spe cified)
Characteristic Symbol Ratings Unit
Power dissipation 1) PD 200 mW
Operating junction temperature Tj 150 C
Storage temperature range Tstg -55 ~ 150 C
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) 625 C/W
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 17.19 - 18.81 V
Dynamic impedance ZZT IZ=5mA - - 42
KNEE dynamic impedance ZZK IZ=0.25mA - - 600
Reverse leakage current IR VR=14V - - 0.1 A
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Rev. date: 18-DEC-12 KSD-D5C076-000 www.auk.co.kr
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Rating and Characteristic Curves
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Fig. 1) Typical Zener Characteristics Fig. 2) Typical Forward Characteristics
Fig. 4) Power Dissipation vs. Ambient Temperature Fig. 3) Typical Total Capacitance Characteristics
Rev. date: 18-DEC-12 KSD-D5C076-000 www.auk.co.kr
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Package Outline Dimensions (Unit: mm)
※ Recommend PCB solder land (Unit: mm)
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Rev. date: 18-DEC-12 KSD-D5C076-000 www.auk.co.kr
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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.
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