Semiconductor Components Industries, LLC, 2012
February, 2012 Rev. 11
1Publication Order Number:
MMSZ5221BT1/D
MMSZ52xxBT1G Series,
SZMMSZ52xxBT1G Series
Zener Voltage Regulators
500 mW SOD123 Surface Mount
Three complete series of Zener diodes are offered in the convenient,
surface mount plastic SOD123 package. These devices provide a
convenient alternative to the leadless 34package style.
Features
500 mW Rating on FR4 or FR5 Board
Wide Zener Reverse Voltage Range 2.4 V to 110 V
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; AECQ101 Qualified and
PPAP Capable
PbFree Packages are Available*
Mechanical Characteristics:
CASE: Void-free, transfer-molded, thermosetting plastic case
FINISH: Corrosion resistant finish, easily solderable
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
260C for 10 Seconds
POLARITY: Cathode indicated by polarity band
FLAMMABILITY RATING: UL 94 V0
MAXIMUM RATINGS
Rating Symbol Max Units
Total Power Dissipation on FR5 Board,
(Note 1) @ TL = 75C
Derated above 75C
PD500
6.7
mW
mW/C
Thermal Resistance, JunctiontoAmbient
(Note 2)
RqJA 340 C/W
Thermal Resistance, JunctiontoLead
(Note 2)
RqJL 150 C/W
Junction and Storage Temperature Range TJ, Tstg 55 to +150 C
Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the
Recommended Operating Conditions may affect device reliability.
1. FR5 = 3.5 X 1.5 inches, using the minimum recommended footprint.
2. Thermal Resistance measurement obtained via infrared Scan Method.
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
Device Package Shipping
ORDERING INFORMATION
SOD123
CASE 425
STYLE 1
1
Cathode
2
Anode
MARKING DIAGRAM
See specific marking information in the device marking
column of the Electrical Characteristics table on page 3 of
this data sheet.
DEVICE MARKING INFORMATION
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.
MMSZ52xxBT1G SOD123
(PbFree)
3,000 /
Tape & Reel
MMSZ52xxBT3G SOD123
(PbFree)
10,000 /
Tape & Reel
http://onsemi.com
xx = Device Code (Refer to page 3)
M = Date Code
G= PbFree Package
(Note: Microdot may be in either location)
xx MG
G
1
SZMMSZ52xxBT1G SOD123
(PbFree)
3,000 /
Tape & Reel
SZMMSZ52xxBT3G SOD123
(PbFree)
10,000 /
Tape & Reel
MMSZ52xxBT1G Series, SZMMSZ52xxBT1G Series
http://onsemi.com
2
ELECTRICAL CHARACTERISTICS (TA = 25C unless
otherwise noted, VF = 0.95 V Max. @ IF = 10 mA)
Symbol Parameter
VZReverse Zener Voltage @ IZT
IZT Reverse Current
ZZT Maximum Zener Impedance @ IZT
IZK Reverse Current
ZZK Maximum Zener Impedance @ IZK
IRReverse Leakage Current @ VR
VRReverse Voltage
IFForward Current
VFForward Voltage @ IFZener Voltage Regulator
IF
V
I
IR
IZT
VR
VZ
VF
MMSZ52xxBT1G Series, SZMMSZ52xxBT1G Series
http://onsemi.com
3
5% TOLERANCE FG ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted, VF = 0.9 V Max. @ IF = 10 mA)
Device*
Device
Marking
Zener Voltage (Notes 3 and 4) Zener Impedance (Note 5)
Leakage Cur-
rent
VZ (Volts) @ IZT ZZT @ IZT ZZK @ IZK IR @ VR
Min Nom Max mA W W mA mAVolts
MMSZ5221BT1G C1 2.28 2.4 2.52 20 30 1200 0.25 100 1
MMSZ5222BT1G C2 2.38 2.5 2.63 20 30 1250 0.25 100 1
MMSZ5223BT1G C3 2.57 2.7 2.84 20 30 1300 0.25 75 1
MMSZ5224BT1G C4 2.66 2.8 2.94 20 30 1400 0.25 75 1
MMSZ5225BT1G C5 2.85 3.0 3.15 20 29 1600 0.25 50 1
MMSZ5226BT1G D1 3.14 3.3 3.47 20 28 1600 0.25 25 1
MMSZ5227BT1G D2 3.42 3.6 3.78 20 24 1700 0.25 15 1
MMSZ5228BT1G D3 3.71 3.9 4.10 20 23 1900 0.25 10 1
MMSZ5229BT1G D4 4.09 4.3 4.52 20 22 2000 0.25 5 1
MMSZ5230BT1G D5 4.47 4.7 4.94 20 19 1900 0.25 5 2
MMSZ5231BT1G E1 4.85 5.1 5.36 20 17 1600 0.25 5 2
MMSZ5232BT1G E2 5.32 5.6 5.88 20 11 1600 0.25 5 3
MMSZ5233BT1G E3 5.70 6.0 6.30 20 7 1600 0.25 5 3.5
MMSZ5234BT1G E4 5.89 6.2 6.51 20 7 1000 0.25 5 4
MMSZ5235BT1G E5 6.46 6.8 7.14 20 5 750 0.25 3 5
MMSZ5236BT1G F1 7.13 7.5 7.88 20 6 500 0.25 3 6
MMSZ5237BT1G F2 7.79 8.2 8.61 20 8 500 0.25 3 6.5
MMSZ5238BT1G F3 8.27 8.7 9.14 20 8 600 0.25 3 6.5
MMSZ5239BT1G F4 8.65 9.1 9.56 20 10 600 0.25 3 7
MMSZ5240BT1G F5 9.50 10 10.50 20 17 600 0.25 3 8
MMSZ5241BT1G H1 10.45 11 11.55 20 22 600 0.25 2 8.4
MMSZ5242BT1G/T3G H2 11.40 12 12.60 20 30 600 0.25 1 9.1
MMSZ5243BT1G H3 12.35 13 13.65 9.5 13 600 0.25 0.5 9.9
MMSZ5244BT1G H4 13.30 14 14.70 9.0 15 600 0.25 0.1 10
MMSZ5245BT1G H5 14.25 15 15.75 8.5 16 600 0.25 0.1 11
MMSZ5246BT1G J1 15.20 16 16.80 7.8 17 600 0.25 0.1 12
MMSZ5247BT1G J2 16.15 17 17.85 7.4 19 600 0.25 0.1 13
MMSZ5248BT1G J3 17.10 18 18.90 7.0 21 600 0.25 0.1 14
MMSZ5249BT1G J4 18.05 19 19.95 6.6 23 600 0.25 0.1 14
MMSZ5250BT1G J5 19.00 20 21.00 6.2 25 600 0.25 0.1 15
MMSZ5251BT1G K1 20.90 22 23.10 5.6 29 600 0.25 0.1 17
MMSZ5252BT1G K2 22.80 24 25.20 5.2 33 600 0.25 0.1 18
MMSZ5253BT1G K3 23.75 25 26.25 5.0 35 600 0.25 0.1 19
MMSZ5254BT1G K4 25.65 27 28.35 4.6 41 600 0.25 0.1 21
MMSZ5255BT1G K5 26.60 28 29.40 4.5 44 600 0.25 0.1 21
MMSZ5256BT1G M1 28.50 30 31.50 4.2 49 600 0.25 0.1 23
MMSZ5257BT1G M2 31.35 33 34.65 3.8 58 700 0.25 0.1 25
MMSZ5258BT1G/T3G M3 34.20 36 37.80 3.4 70 700 0.25 0.1 27
MMSZ5259BT1G M4 37.05 39 40.95 3.2 80 800 0.25 0.1 30
MMSZ5260BT1G M5 40.85 43 45.15 3.0 93 900 0.25 0.1 33
MMSZ5261BT1G N1 44.65 47 49.35 2.7 105 1000 0.25 0.1 36
MMSZ5262BT1G N2 48.45 51 53.55 2.5 125 1100 0.25 0.1 39
MMSZ5263BT1G N3 53.20 56 58.80 2.2 150 1300 0.25 0.1 43
MMSZ5264BT1G N4 57.00 60 63.00 2.1 170 1400 0.25 0.1 46
MMSZ5265BT1G N5 58.90 62 65.10 2.0 185 1400 0.25 0.1 47
MMSZ5266BT1G P1 64.60 68 71.40 1.8 230 1600 0.25 0.1 52
MMSZ5267BT1G P2 71.25 75 78.75 1.7 270 1700 0.25 0.1 56
MMSZ5268BT1G P3 77.90 82 86.10 1.5 330 2000 0.25 0.1 62
MMSZ5269BT1G P4 82.65 87 91.35 1.4 370 2200 0.25 0.1 68
MMSZ5270BT1G P5 86.45 91 95.55 1.4 400 2300 0.25 0.1 69
MMSZ5272BT1G R2 104.5 110 115.5 1.1 750 3000 0.25 0.1 84
3. The type numbers shown have a standard tolerance of 5% on the nominal Zener voltage.
4. Nominal Zener voltage is measured with the device junction in thermal equilibrium at TL = 30C 1C.
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.
*Include SZ-prefix devices where applicable.
MMSZ52xxBT1G Series, SZMMSZ52xxBT1G Series
http://onsemi.com
4
2% TOLERANCE FG ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted, VF = 0.9 V Max. @ IF = 10 mA)
Device*
Device
Marking
Zener Voltage (Notes 6 and 7) Zener Impedance (Note 8)
Leakage Cur-
rent
VZ (Volts) @ IZT ZZT @ IZT ZZK @ IZK IR @ VR
Min Nom Max mA W W mA mAVolts
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
6. The type numbers shown have a standard tolerance of 5% on the nominal Zener voltage.
7. Nominal Zener voltage is measured with the device junction in thermal equilibrium at TL = 30C 1C.
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.
*Include SZ-prefix devices where applicable.
MMSZ52xxBT1G Series, SZMMSZ52xxBT1G Series
http://onsemi.com
5
TYPICAL CHARACTERISTICS
VZ, NOMINAL ZENER VOLTAGE (V)
3
2
1
0
1
2
3
4
5
6
7
8
12111098765432
Figure 1. Temperature Coefficients
(Temperature Range 55C to +150C)
TYPICAL TC VALUES
FOR MMSZ52xxBT1G SERIES,
SZMMSZ52xxBT1G SERIES
VZ @ IZT
1000
10
110 200
VZ, NOMINAL ZENER VOLTAGE (V)
Figure 2. Temperature Coefficients
(Temperature Range 55C to +150C)
1.2
1.0
0.8
0.6
0.4
0.2
01501251007550250
T, TEMPERATURE (C)
Figure 3. Steady State Power Derating
PD versus TA
PD versus TL
0.1
PW, PULSE WIDTH (ms)
Figure 4. Maximum Nonrepetitive Surge Power
1 10 100 1000
1000
100
10
1
RECTANGULAR
WAVEFORM, TA = 25C
100
VZ, NOMINAL ZENER VOLTAGE
Figure 5. Effect of Zener Voltage on
Zener Impedance
101
1000
100
10
1
TJ = 25C
IZ(AC) = 0.1 IZ(DC)
f = 1 kHz
IZ = 1 mA
5 mA
20 mA
VF
, FORWARD VOLTAGE (V)
Figure 6. Typical Forward Voltage
1.21.11.00.90.80.70.60.50.4
1000
100
10
1
75 V (MMSZ5267BT1G)
91 V (MMSZ5270BT1G)
150C75C 25C 0C
qVZ, TEMPERATURE COEFFICIENT (mV/C)
qVZ, TEMPERATURE COEFFICIENT (mV/C)
Ppk, PEAK SURGE POWER (WATTS)
ZZT
, DYNAMIC IMPEDANCE (W)
IF
, FORWARD CURRENT (mA)
100
100
TYPICAL TC VALUES
FOR MMSZ52xxBT1G SERIES,
SZMMSZ52xxBT1G SERIES
VZ @ IZT
MMSZ52xxBT1G Series, SZMMSZ52xxBT1G Series
http://onsemi.com
6
TYPICAL CHARACTERISTICS
C, CAPACITANCE (pF)
100
VZ, NOMINAL ZENER VOLTAGE (V)
Figure 7. Typical Capacitance
1000
100
10
1101
BIAS AT
50% OF VZ NOM
TA = 25C
0 V BIAS
1 V BIAS
12
VZ, ZENER VOLTAGE (V)
100
10
1
0.1
0.01 1086420
TA = 25C
VZ, ZENER VOLTAGE (V)
100
10
1
0.1
0.01 10 30 50 70 90
TA = 25C
90
VZ, NOMINAL ZENER VOLTAGE (V)
Figure 8. Typical Leakage Current
1000
100
10
1
0.1
0.01
0.001
0.0001
0.00001 80706050403020100
+150C
+25C
55C
Figure 9. Zener Voltage versus Zener Current
(VZ Up to 12 V)
Figure 10. Zener Voltage versus Zener Current
(12 V to 91 V)
IR, LEAKAGE CURRENT (mA)
IZ, ZENER CURRENT (mA)
IZ, ZENER CURRENT (mA)
MMSZ52xxBT1G Series, SZMMSZ52xxBT1G Series
http://onsemi.com
7
PACKAGE DIMENSIONS
SOD123
CASE 42504
ISSUE G
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
ÂÂÂÂ
ÂÂÂÂ
ÂÂÂÂ
E
b
DA
L
C
1
2
A1
DIM MIN NOM MAX
MILLIMETERS INCHES
A0.94 1.17 1.35 0.037
A1 0.00 0.05 0.10 0.000
b0.51 0.61 0.71 0.020
c
1.60
0.15
0.055
D1.40 1.80
E2.54 2.69 2.84 0.100
---
3.68 0.140
L0.25
3.86
0.010
HE
0.046
0.002
0.024
0.063
0.106
0.145
0.053
0.004
0.028
0.071
0.112
0.152
MIN NOM MAX
3.56
HE
---
--- ---
0.006
--- ---
--- ---
*For additional information on our PbFree strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
1.22
0.048
ÉÉ
ÉÉ
ÉÉ
0.91
0.036
2.36
0.093
4.19
0.165
ǒmm
inchesǓ
SCALE 10:1
ÉÉ
ÉÉ
ÉÉ
q
--- ---
q00
10 10

STYLE 1:
PIN 1. CATHODE
2. ANODE
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MMSZ5221BT1/D
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