UNISONIC TECHNOLOGIES CO., LTD
UMMSZ52XXB
SURFACE MOUNT SILICON
ZENER DIODE
DESCRIPTION
3
1
2
1
2
SOD-123
ZENER DIODE
SOT-23
(JEDEC TO-236)
The UTC
UMMSZ52XXB
is a surface mount silicon zener diode,
it uses UTC’s advanced technology to provide customers with low
reverse leakage current, etc.
The UTC
UMMSZ52XXB
is suitable for automated assembly
processes.
1
2
SOD-323
2
1
LL-34
2
1
SOD-523
FEATURES
* Low reverse leakage current
SYMBOL
SOT-23
SOD-123 / SOD-323
SOD-523 / LL34
ORDERING INFORMATION
Ordering Number
Package
SOT-23
SOD-123
SOD-323
SOD-523
LL-34
(1) R: Tape Reel
(2) AE3: SOT-23, CA2 : SOD-123, CB2: SOD-323
CC2: SOD-523, LL34: LL-34
(3) G: Halogen Free and Lead Free, L: Lead Free
(4) refer to ELECTRICAL CHARACTERISTICS
UMMSZ52XXBG-AE3-R
UMMSZ52XXBG-CA2-R
UMMSZ52XXBG-CB2-R
UMMSZ52XXBG-CC2-R
UMMSZ52XXB-LL34-R
Note: Pin Assignment: A: Anode
K: Cathode
UMMSZ52XXBG-AE3-R
(1)Packing Type
(2)Package Type
(3)Green Package
(4)Output Voltage
Pin Assignment
1
2
3
NC
A
K
A
K
-
A
K
-
A
K
-
A
K
-
Packing
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
1 of 4
QW-R601-085.G
UMMSZ52XXB
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
3.9: 3.9V
5.1: 5.1V
5.6: 5.6V
6.2: 6 . 2 V
7.5: 7.5V
8.2: 8.2V
13: 13V
15:15V
18: 18V
20: 20V
22: 22V
27: 27V
33:33V
MARKING
ZENER DIODE
SOT-23
Voltage Code
XXXBG
SOD-123
SOD-323
SOD-523
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 4
QW-R601-085.G
UMMSZ52XXB
ABSOLUTE MAXIMUM RATINGS
ZENER DIODE
PARAMETER
SYMBOL
RATINGS
UNIT
Peak Forward Surge Current, 8.3ms Single Half
I
FSM
4.0
A
Sine-Wave Superimposed on Rated Load (Note 2)
SOD-123/LL-34
500
SOD-323
330
Power Dissipation at 75°C (Note 1)
P
D
mW
SOD-523
250
SOT-23
200
Operating Junction Temperature
T
J
-55~+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 5.0mm
2
(.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
Reverse Leakage Zener
Current
Current
Z
ZT
@ I
ZT
Z
ZK
@ I
ZK
I
R
@ V
R
I
ZM
@ T
A
Max (Ω) I
Z
(mA) Max (Ω) I
Z
(mA) Max (µA) @V
R
(V)
mA
23
20
1900
0.25
10
1.0
115
17
20
1600
0.25
5.0
2.0
89
11
20
1600
0.25
5.0
3.0
81
7
20
1000
0.25
5.0
4.0
73
6.0
20
500
0.25
3.0
6.0
61
8
20
500
0.25
3.0
6.0
55
13
9.5
600
0.25
1.0
9.9
35
16
8.5
600
0.25
0.5
11
30
21
7
600
0.25
0.1
14
25
25
6.2
600
0.25
0.1
15
23
29
5.6
600
0.25
0.1
17
21
41
5
600
0.25
0.1
21
16.8
58
3.8
700
0.25
0.1
25
13.8
Zener Impedance
(V
F
= 1.2V Max @ I
F
= 100mA for all types.)
Device
UMMSZ5228B
UMMSZ5231B
UMMSZ5232B
UMMSZ5234B
UMMSZ5236B
UMMSZ5237B
UMMSZ5243B
UMMSZ5245B
UMMSZ5248B
UMMSZ5250B
UMMSZ5251B
UMMSZ5254B
UMMSZ5257B
Marking
Code
3.9
5.1
5.6
6.2
7.5
8.2
13
15
18
20
22
27
33
Nominal Zener Voltage
V
Z
@ I
ZT
(V)
MIN
TYP MAX
3.71
3.9
4.1
4.85
5.1
5.36
5.32
5.6
5.88
5.89
6.2
6.51
7.13
7.5
7.88
7.79
8.2
8.61
12.35
13
13.65
14.25
15
15.75
17.1
18
18.9
19
20
21
20.9
22
23.1
25.65
27
28.35
31.35
33
34.65
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 4
QW-R601-085.G
UMMSZ52XXB
TYPICAL CHARACTERISTICS
ZENER DIODE
Power Dissipation, P
D
(mW)
Reverse
Current,
I
R
(mA)
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
Forward
Current,
I
F
(mA)
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QW-R601-085.G
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