Datasheet

UNISONIC TECHNOLOGIES CO., LTD
UMMSZ52XXA
Preliminary
DIODE
SURFACE MOUNT SILICON
ZENER DIODE
DESCRIPTION

1
The UTC UMMSZ52XXA is a surface mount silicon zener diode, it
uses UTC’s advanced technology to provide customers with low
reverse leakage current, etc.
The UTC UMMSZ52XXA is suitable for automated assembly
processes.
2
SOD-123
FEATURES

* Low reverse leakage current
SYMBOL

1
2
A

K
ORDERING INFORMATION
Ordering Number
UMMSZ52XXAG-CA2-R
Note: Pin Assignment: A: Anode
K: Cathode

Package
SOD-123
Pin Assignment
1
2
A
K
Packing
Tape Reel
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
SOD-123
5.1: 5.1V
6.2: 6 . 2 V
18: 18V
20: 20V
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Copyright © 2014 Unisonic Technologies Co., Ltd
MARKING
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UMMSZ52XXA

Preliminary
DIODE
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Zener Current
IZM
115
mA
Peak Forward Surge Current, 8.3ms Single Half
IFSM
4.0
A
Sine-Wave Superimposed on Rated Load (Note 2)
Power Dissipation at 75°C (Note 1)
PD
500
mW
Operating Junction Temperature
TJ
-50~+150
°C
Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. Mounted on 5.0mm2 (.013mm thick) land areas.
3. Measured on 8.3ms, single half sine-wave or equivalent square wave, duty cycle=4 pulses per minute
maximum.

ELECTRICAL CHARACTERISTICS
For UMMSZ5231A
PARAMETER
Nominal Zener Volage
Zener Impedance
Reverse Leakage Current
For UMMSZ5234A
PARAMETER
Nominal Zener Volage
Zener Impedance
Reverse Leakage Current
For UMMSZ5248A
PARAMETER
Nominal Zener Volage
Zener Impedance
Reverse Leakage Current
For UMMSZ5250A
PARAMETER
Nominal Zener Volage
Zener Impedance
Reverse Leakage Current
SYMBOL
VZ
ZZT
ZZK
IR
TEST CONDITIONS
IZT=20mA
IZT=20mA
IZK=0.25mA
VR=2V
MIN
5.0
TYP MAX UNIT
5.1
5.2
V
17
Ω
1600 Ω
5
µA
SYMBOL
VZ
ZZT
ZZK
IR
TEST CONDITIONS
IZT=20mA
IZT=20mA
IZK=0.25mA
VR=4V
MIN
6.08
TYP MAX UNIT
6.2 6.32
V
7
Ω
1000 Ω
5
µA
SYMBOL
VZ
ZZT
ZZK
IR
TEST CONDITIONS
IZT=7mA
IZT=7mA
IZK=0.25mA
VR=14V
MIN TYP MAX UNIT
17.64 18 18.36 V
21
Ω
600
Ω
0.1
µA
SYMBOL
VZ
ZZT
ZZK
IR
TEST CONDITIONS
IZT=6.2mA
IZT=6.2mA
IZK=0.25mA
VR=15V
MIN
19.6
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
TYP MAX UNIT
20 20.4
V
25
Ω
600
Ω
0.1
µA
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UMMSZ52XXA
Preliminary
DIODE
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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