DATA SHEET
www.onsemi.com
Zener Voltage Regulators
500 mW SOD−123 Surface Mount
SOD−123
CASE 425
STYLE 1
MMSZ52xxxT1G Series,
SZMMSZ52xxxT1G Series
1
Cathode
Three complete series of Zener diodes are offered in the convenient,
surface mount plastic SOD−123 package. These devices provide
a convenient alternative to the leadless 34−package style. Zener
voltage in this series are specified with device junction in thermal
equilibrium.
MARKING DIAGRAM
Features
1
• 500 mW Rating on FR−4 or FR−5 Board
• Wide Zener Reverse Voltage Range − 2.4 V to 110 V @ Thermal
•
•
•
•
•
•
Equilibrium*
Package Designed for Optimal Automated Board Assembly
Small Package Size for High Density Applications
General Purpose, Medium Current
ESD Rating of Class 3 (> 16 kV) per Human Body Model
SZ Prefix for Automotive and Other Applications Requiring Unique
Site and Control Change Requirements; AEC−Q101 Qualified and
PPAP Capable
These are Pb−Free Devices
Mechanical Characteristics:
CASE: Void-free, transfer-molded, thermosetting plastic case
FINISH: Corrosion resistant finish, easily solderable
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
260°C for 10 Seconds
POLARITY: Cathode indicated by polarity band
FLAMMABILITY RATING: UL 94 V−0
Rating
Symbol
PD
Max
= Device Code (Refer to page 3)
= Date Code
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
Package
Shipping†
MMSZ52xxBT1G,
SZMMSZ52xxBT1G
SOD−123
(Pb−Free)
3,000 /
Tape & Reel
MMSZ52xxCT1G,
SZMMSZ52xxCT1G
SOD−123
(Pb−Free)
3,000 /
Tape & Reel
MMSZ52xxBT3G,
SZMMSZ52xxBT3G
SOD−123
(Pb−Free)
10,000 /
Tape & Reel
MMSZ52xxCT3G,
SZMMSZ52xxCT3G
SOD−123
(Pb−Free)
10,000 /
Tape & Reel
Units
DEVICE MARKING INFORMATION
500
6.7
mW
mW/°C
See specific marking information in the device marking
column of the Electrical Characteristics table on page 3 of
this data sheet.
Thermal Resistance, Junction−to−Ambient
(Note 2)
RqJA
340
°C/W
Thermal Resistance, Junction−to−Lead
(Note 2)
RqJL
150
°C/W
TJ, Tstg
−55 to +150
°C
Junction and Storage Temperature Range
xx
M
G
xx MG
G
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
MAXIMUM RATINGS
Total Power Dissipation on FR−5 Board,
(Note 1) @ TL = 75°C
Derated above 75°C
2
Anode
Stresses exceeding those listed in the Maximum Ratings table may damage the
device. If any of these limits are exceeded, device functionality should not be
assumed, damage may occur and reliability may be affected.
1. FR−5 = 3.5 X 1.5 inches, using the minimum recommended footprint.
2. Thermal Resistance measurement obtained via infrared Scan Method.
*For additional info on thermal equilibrium, please download, onsemi TVS/Zener
Theory and Design Considerations Handbook, HBD854/D.
© Semiconductor Components Industries, LLC, 2015
August, 2021 − Rev. 16
1
Publication Order Number:
MMSZ5221BT1/D
MMSZ52xxxT1G Series, SZMMSZ52xxxT1G Series
ELECTRICAL CHARACTERISTICS (TA = 25°C unless
I
otherwise noted, VF = 0.95 V Max. @ IF = 10 mA)
Symbol
IF
Parameter
VZ
Reverse Zener Voltage @ IZT
IZT
Reverse Current
ZZT
Maximum Zener Impedance @ IZT
IZK
Reverse Current
ZZK
Maximum Zener Impedance @ IZK
IR
Reverse Leakage Current @ VR
VR
Reverse Voltage
IF
Forward Current
VF
Forward Voltage @ IF
VZ VR
IR VF
IZT
Zener Voltage Regulator
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2
V
MMSZ52xxxT1G Series, SZMMSZ52xxxT1G Series
5% TOLERANCE FG ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted, VF = 0.9 V Max. @ IF = 10 mA)
Zener Voltage (Notes 3 and 4)
ZZK @ IZK
Leakage Current
Device
Marking
@ IZT
ZZT @ IZT
Min
Nom
Max
mA
W
W
mA
mA
Volts
MMSZ5221BT1G
MMSZ5222BT1G
MMSZ5223BT1G
MMSZ5224BT1G
MMSZ5225BT1G
C1
C2
C3
C4
C5
2.28
2.38
2.57
2.66
2.85
2.4
2.5
2.7
2.8
3.0
2.52
2.63
2.84
2.94
3.15
20
20
20
20
20
30
30
30
30
29
1200
1250
1300
1400
1600
0.25
0.25
0.25
0.25
0.25
100
100
75
75
50
1
1
1
1
1
MMSZ5226BT1G
MMSZ5227BT1G
MMSZ5228BT1G
MMSZ5229BT1G
MMSZ5230BT1G
D1
D2
D3
D4
D5
3.14
3.42
3.71
4.09
4.47
3.3
3.6
3.9
4.3
4.7
3.47
3.78
4.10
4.52
4.94
20
20
20
20
20
28
24
23
22
19
1600
1700
1900
2000
1900
0.25
0.25
0.25
0.25
0.25
25
15
10
5
5
1
1
1
1
2
MMSZ5231BT1G
MMSZ5232BT1G
MMSZ5233BT1G
MMSZ5234BT1G
MMSZ5235BT1G
E1
E2
E3
E4
E5
4.85
5.32
5.70
5.89
6.46
5.1
5.6
6.0
6.2
6.8
5.36
5.88
6.30
6.51
7.14
20
20
20
20
20
17
11
7
7
5
1600
1600
1600
1000
750
0.25
0.25
0.25
0.25
0.25
5
5
5
5
3
2
3
3.5
4
5
MMSZ5236BT1G
MMSZ5237BT1G
MMSZ5238BT1G
MMSZ5239BT1G
MMSZ5240BT1G
F1
F2
F3
F4
F5
7.13
7.79
8.27
8.65
9.50
7.5
8.2
8.7
9.1
10
7.88
8.61
9.14
9.56
10.50
20
20
20
20
20
6
8
8
10
17
500
500
600
600
600
0.25
0.25
0.25
0.25
0.25
3
3
3
3
3
6
6.5
6.5
7
8
MMSZ5241BT1G
MMSZ5242BT1G/T3G
MMSZ5243BT1G
MMSZ5244BT1G
MMSZ5245BT1G
H1
H2
H3
H4
H5
10.45
11.40
12.35
13.30
14.25
11
12
13
14
15
11.55
12.60
13.65
14.70
15.75
20
20
9.5
9.0
8.5
22
30
13
15
16
600
600
600
600
600
0.25
0.25
0.25
0.25
0.25
2
1
0.5
0.1
0.1
8.4
9.1
9.9
10
11
MMSZ5246BT1G
MMSZ5247BT1G
MMSZ5248BT1G
MMSZ5249BT1G
MMSZ5250BT1G
J1
J2
J3
J4
J5
15.20
16.15
17.10
18.05
19.00
16
17
18
19
20
16.80
17.85
18.90
19.95
21.00
7.8
7.4
7.0
6.6
6.2
17
19
21
23
25
600
600
600
600
600
0.25
0.25
0.25
0.25
0.25
0.1
0.1
0.1
0.1
0.1
12
13
14
14
15
MMSZ5251BT1G
MMSZ5252BT1G
MMSZ5253BT1G
MMSZ5254BT1G/T3G
MMSZ5255BT1G
K1
K2
K3
K4
K5
20.90
22.80
23.75
25.65
26.60
22
24
25
27
28
23.10
25.20
26.25
28.35
29.40
5.6
5.2
5.0
4.6
4.5
29
33
35
41
44
600
600
600
600
600
0.25
0.25
0.25
0.25
0.25
0.1
0.1
0.1
0.1
0.1
17
18
19
21
21
MMSZ5256BT1G
MMSZ5257BT1G
MMSZ5258BT1G/T3G
MMSZ5259BT1G
MMSZ5260BT1G
M1
M2
M3
M4
M5
28.50
31.35
34.20
37.05
40.85
30
33
36
39
43
31.50
34.65
37.80
40.95
45.15
4.2
3.8
3.4
3.2
3.0
49
58
70
80
93
600
700
700
800
900
0.25
0.25
0.25
0.25
0.25
0.1
0.1
0.1
0.1
0.1
23
25
27
30
33
MMSZ5261BT1G
MMSZ5262BT1G
MMSZ5263BT1G
MMSZ5264BT1G
MMSZ5265BT1G
N1
N2
N3
N4
N5
44.65
48.45
53.20
57.00
58.90
47
51
56
60
62
49.35
53.55
58.80
63.00
65.10
2.7
2.5
2.2
2.1
2.0
105
125
150
170
185
1000
1100
1300
1400
1400
0.25
0.25
0.25
0.25
0.25
0.1
0.1
0.1
0.1
0.1
36
39
43
46
47
MMSZ5266BT1G
MMSZ5267BT1G
MMSZ5268BT1G
MMSZ5269BT1G
MMSZ5270BT1G
P1
P2
P3
P4
P5
64.60
71.25
77.90
82.65
86.45
68
75
82
87
91
71.40
78.75
86.10
91.35
95.55
1.8
1.7
1.5
1.4
1.4
230
270
330
370
400
1600
1700
2000
2200
2300
0.25
0.25
0.25
0.25
0.25
0.1
0.1
0.1
0.1
0.1
52
56
62
68
69
MMSZ5272BT1G/T3G
R2
104.5
110
115.5
1.1
750
3000
0.25
0.1
84
Device*
VZ (Volts)
Zener Impedance (Note 5)
*Includes SZ-prefix devices where applicable.
3. “B” Suffix Type numbers shown have a standard tolerance of ±5% on the nominal Zener voltages.
4. Nominal Zener voltage is measured with the device junction in thermal equilibrium at TL = 30°C ±1°C.
5. ZZT and ZZK are measured by dividing the AC voltage drop across the device by the ac current applied.
The specified limits are for IZ(AC) = 0.1 IZ(dc) with the AC frequency = 1 kHz.
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3
IR @ VR
MMSZ52xxxT1G Series, SZMMSZ52xxxT1G Series
2% TOLERANCE FG ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted, VF = 0.9 V Max. @ IF = 10 mA)
Zener Voltage (Notes 6 and 7)
ZZK @ IZK
Leakage Current
Device
Marking
@ IZT
ZZT @ IZT
Min
Nom
Max
mA
W
W
mA
mA
Volts
MMSZ5226CT1G
TD
3.234
3.3
3.366
20
28
1600
0.25
25
1
MMSZ5231CT1G
TG
4.998
5.1
5.202
20
17
1600
0.25
5
2
MMSZ5232CT1G
TH
5.488
5.6
5.712
20
11
1600
0.25
5
3
MMSZ5245CT1G
TK
14.70
15
15.30
8.5
16
600
0.25
0.1
11
MMSZ5248CT1G
TL
17.64
18
18.36
7.0
21
600
0.25
0.1
14
MMSZ5250CT1G
TN
19.60
20
20.40
6.2
25
600
0.25
0.1
15
MMSZ5252CT1G
TQ
23.52
24
24.48
5.2
33
600
0.25
0.1
18
MMSZ5256CT1G
TW
29.40
30
30.60
4.2
49
600
0.25
0.1
23
MMSZ5258CT1G
TX
35.28
36
36.72
3.4
70
700
0.25
0.1
27
Device*
VZ (Volts)
Zener Impedance (Note 8)
6. “C” Suffix Type numbers shown have a standard tolerance of ±2% on the nominal Zener voltages.
7. Nominal Zener voltage is measured with the device junction in thermal equilibrium at TL = 30°C ±1°C.
8. ZZT and ZZK are measured by dividing the AC voltage drop across the device by the ac current applied.
The specified limits are for IZ(AC) = 0.1 IZ(dc) with the AC frequency = 1 kHz.
*Includes SZ-prefix devices where applicable.
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4
IR @ VR
MMSZ52xxxT1G Series, SZMMSZ52xxxT1G Series
qVZ, TEMPERATURE COEFFICIENT (mV/°C)
qVZ, TEMPERATURE COEFFICIENT (mV/°C)
TYPICAL CHARACTERISTICS
8
1000
7
TYPICAL TC VALUES
FOR MMSZ52xxBT1G SERIES,
SZMMSZ52xxBT1G SERIES
6
5
4
VZ @ IZT
3
2
1
0
−1
−2
−3
2
3
4
5
6
7
8
9
10
VZ, NOMINAL ZENER VOLTAGE (V)
11
12
TYPICAL TC VALUES
FOR MMSZ52xxBT1G SERIES,
SZMMSZ52xxBT1G SERIES
100
VZ @ IZT
10
1
10
Figure 1. Temperature Coefficients
(Temperature Range − 55°C to +150°C)
Figure 2. Temperature Coefficients
(Temperature Range − 55°C to +150°C)
1.2
Ppk, PEAK SURGE POWER (WATTS)
1000
1.0
PD versus TL
0.8
0.6
PD versus TA
0.2
0
25
RECTANGULAR
WAVEFORM, TA = 25°C
100
0.4
0
50
75
100
T, TEMPERATURE (°C)
125
150
10
1
Figure 3. Steady State Power Derating
1
10
100
PW, PULSE WIDTH (ms)
1000
1000
IZ = 1 mA
TJ = 25°C
IZ(AC) = 0.1 IZ(DC)
f = 1 kHz
IF, FORWARD CURRENT (mA)
ZZT, DYNAMIC IMPEDANCE (W)
0.1
Figure 4. Maximum Nonrepetitive Surge Power
1000
100
75 V (MMSZ5267BT1G)
91 V (MMSZ5270BT1G)
100
5 mA
20 mA
10
10
150°C
1
200
100
VZ, NOMINAL ZENER VOLTAGE (V)
1
10
VZ, NOMINAL ZENER VOLTAGE
100
1
0.4
Figure 5. Effect of Zener Voltage on
Zener Impedance
0.5
75°C 25°C
0°C
0.6
0.7
0.8
0.9
1.0
VF, FORWARD VOLTAGE (V)
Figure 6. Typical Forward Voltage
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5
1.1
1.2
MMSZ52xxxT1G Series, SZMMSZ52xxxT1G Series
TYPICAL CHARACTERISTICS
TA = 25°C
0 V BIAS
1 V BIAS
C, CAPACITANCE (pF)
IR, LEAKAGE CURRENT (mA)
1000
100
BIAS AT
50% OF VZ NOM
10
1
1
100
10
VZ, NOMINAL ZENER VOLTAGE (V)
1000
100
10
1
+150°C
0.1
0.01
0.001
+ 25°C
0.0001
−55°C
0.00001
0
10
Figure 7. Typical Capacitance
Figure 8. Typical Leakage Current
TA = 25°C
IZ, ZENER CURRENT (mA)
TA = 25°C
10
1
0.1
0
2
4
6
8
VZ, ZENER VOLTAGE (V)
1
0.1
0.01
12
10
10
10
30
50
70
VZ, ZENER VOLTAGE (V)
1.015
VZ = 3.0 V
1.010
1.005
1.000
0.995
0.990
0.985
0.980
47 V
0.975
0.970
91 V
1
10
90
Figure 10. Zener Voltage versus Zener Current
(12 V to 91 V)
Figure 9. Zener Voltage versus Zener Current
(VZ Up to 12 V)
VZ, ZENER VOLTAGE (NORMALIZED)
IZ, ZENER CURRENT (mA)
80
100
100
0.01
20
30
40
50
60
70
VZ, NOMINAL ZENER VOLTAGE (V)
100
1K
10K
100K
PW, PULSE WIDTH (ms)
Figure 11. SOD−123 (plastic) 500 Watt Device
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6
1M
90
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
SOD−123
CASE 425−04
ISSUE G
DATE 07 OCT 2009
SCALE 5:1
D
A
ÂÂÂÂ
ÂÂÂÂ
ÂÂÂÂ
A1
1
HE
DIM
A
A1
b
c
D
E
HE
L
q
E
2
q
L
b
C
ÉÉÉ
ÉÉÉ
ÉÉÉ
2.36
0.093
4.19
0.165
ÉÉÉ
ÉÉÉ
ÉÉÉ
MILLIMETERS
MIN
NOM
MAX
0.94
1.17
1.35
0.00
0.05
0.10
0.51
0.61
0.71
----0.15
1.40
1.60
1.80
2.54
2.69
2.84
3.56
3.68
3.86
----0.25
--10 °
0°
MIN
0.037
0.000
0.020
--0.055
0.100
0.140
0.010
0°
INCHES
NOM
0.046
0.002
0.024
--0.063
0.106
0.145
-----
MAX
0.053
0.004
0.028
0.006
0.071
0.112
0.152
--10 °
GENERIC
MARKING DIAGRAM*
1
SOLDERING FOOTPRINT*
0.91
0.036
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
XXXMG
G
XXX = Specific Device Code
M
= Date Code
G
= Pb−Free Package
(Note: Microdot may be in either location)
1.22
0.048
*This information is generic. Please refer to device data
sheet for actual part marking. Pb−Free indicator, “G” or
microdot “ G”, may or may not be present.
STYLE 1:
PIN 1. CATHODE
2. ANODE
SCALE 10:1
mm Ǔ
ǒinches
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
DOCUMENT NUMBER:
DESCRIPTION:
98ASB42927B
SOD−123
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
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