KODENSHI SDZ18VWA

SDZ18VWA
ZENER DIODE
Small Signal Zener Diode
General Description
These diodes small signal Zener diodes, fabricated in planar
technology. Miniature surface mount package is excellent for
hand-held and portable applications where is space is limited.
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
SDZ18VWA
W6 □
SOT-23
Tape & Reel
Marking Information
W6□
W 6 = Specific Device Code
□ = Year & Week Code Marking
Pinning Information
Pin
Description
1
Cathode (Diode 1)
2
Cathode (Diode 2)
3
Common Anode
Rev. date: 29-NOV-10
Simplified Outline
KSD-D5C012-001
Graphic Symbol
www.auk.co.kr
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SDZ18VWA
Absolute Maximum Ratings (Tamb=25℃, Unless otherwise specified)
Characteristic
Symbol
Ratings
Unit
Power dissipation 1)
PD
200
mW
Maximum operating junction temperature
TJ
150
C
Storage temperature range
Tstg
-55℃ to +150C
C
Operating junction temperature range
Topr
-55℃ to +150C
C
Symbol
Ratings
Unit
Rth(j-a)
625
C/W
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
17.19
-
18.81
V
Dynamic impedance
ZZT
IZ=5mA
-
-
42

KNEE dynamic impedance
ZZK
IZ=0.25mA
-
-
600

VR=14V
-
-
0.1
A
Reverse leakage current
Rev. date: 29-NOV-10
IR
KSD-D5C012-001
www.auk.co.kr
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SDZ18VWA
Rating and Characteristic Curves
Fig. 1) Typical Zener Characteristics
Fig. 2) Typical Reverse Characteristics
Fig. 3) Typical Capacitance Characteristics
Fig. 4) Power Dissipation vs. Ambient Temperature
Rev. date: 29-NOV-10
KSD-D5C012-001
www.auk.co.kr
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SDZ18VWA
Package Outline Dimensions
※ Recommend PCB solder land (Unit : mm)
Rev. date: 29-NOV-10
KSD-D5C012-001
www.auk.co.kr
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SDZ18VWA
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: 29-NOV-10
KSD-D5C012-001
www.auk.co.kr
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