© Semiconductor Components Industries, LLC, 2010
April, 2010 − Rev. 9
1Publication Order Number:
MMSZ5221BT1/D
MMSZ5221BT1 Series
Preferred Device
Zener Voltage Regulators
500 mW SOD−123 Surface Mount
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.
Features
•500 mW Rating on FR−4 or FR−5 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
•Pb−Free 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:
260°C for 10 Seconds
POLARITY: Cathode indicated by polarity band
FLAMMABILITY RATING: UL 94 V−0
MAXIMUM RATINGS
Rating Symbol Max Unit
Total Power Dissipation on FR−5 Board,
(Note 1) @ TL = 75°C
Derated above 75°C
PD500
6.7
mW
mW/°C
Thermal Resistance, Junction−to−Ambient
(Note 2)
RqJA 340 °C/W
Thermal Resistance, Junction−to−Lead
(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. FR−5 = 3.5 X 1.5 inches, using the minimum recommended footprint.
2. Thermal Resistance measurement obtained via infrared Scan Method.
Device Package Shipping†
ORDERING INFORMATION
SOD−123
CASE 425
STYLE 1
1
Cathode
2
Anode
MMSZ52xxBT1 SOD−123 3000/Tape & Reel
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
1
2
Devices listed in bold, italic are ON Semiconductor
Preferred devices. Preferred devices are recommended
choices for future use and best overall value.
MMSZ52xxBT3 SOD−123 10000/Tape & Reel
†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 SOD−123
(Pb−Free)
3000/Tape & Reel
MMSZ52xxBT3G SOD−123
(Pb−Free)
10000/Tape & Reel
http://onsemi.com
xx = Device Code (Refer to page 3)
M = Date Code
G= Pb−Free Package
(Note: Microdot may be in either location)
xx MG
G
1
MMSZ5221BT1 Series
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2
ELECTRICAL CHARACTERISTICS (TA = 25°C 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
MMSZ5221BT1 Series
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3
ELECTRICAL CHARACTERISTICS (TA = 25°C 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 Current
VZ (Volts) @ IZT ZZT @ IZT ZZK @ IZK IR @ VR
Min Nom Max mA W W mA mAVolts
MMSZ5221BT1, G C1 2.28 2.4 2.52 20 30 1200 0.25 100 1
MMSZ5222BT1, G C2 2.38 2.5 2.63 20 30 1250 0.25 100 1
MMSZ5223BT1, G C3 2.57 2.7 2.84 20 30 1300 0.25 75 1
MMSZ5224BT1, G C4 2.66 2.8 2.94 20 30 1400 0.25 75 1
MMSZ5225BT1, G C5 2.85 3.0 3.15 20 29 1600 0.25 50 1
MMSZ5226BT1, G D1 3.14 3.3 3.47 20 28 1600 0.25 25 1
MMSZ5227BT1, G D2 3.42 3.6 3.78 20 24 1700 0.25 15 1
MMSZ5228BT1, G D3 3.71 3.9 4.10 20 23 1900 0.25 10 1
MMSZ5229BT1, G D4 4.09 4.3 4.52 20 22 2000 0.25 5 1
MMSZ5230BT1, G D5 4.47 4.7 4.94 20 19 1900 0.25 5 2
MMSZ5231BT1, G E1 4.85 5.1 5.36 20 17 1600 0.25 5 2
MMSZ5232BT1, G E2 5.32 5.6 5.88 20 11 1600 0.25 5 3
MMSZ5233BT1, G E3 5.70 6.0 6.30 20 7 1600 0.25 5 3.5
MMSZ5234BT1, G E4 5.89 6.2 6.51 20 7 1000 0.25 5 4
MMSZ5235BT1, G E5 6.46 6.8 7.14 20 5 750 0.25 3 5
MMSZ5236BT1, G F1 7.13 7.5 7.88 20 6 500 0.25 3 6
MMSZ5237BT1, G F2 7.79 8.2 8.61 20 8 500 0.25 3 6.5
MMSZ5238BT1, G F3 8.27 8.7 9.14 20 8 600 0.25 3 6.5
MMSZ5239BT1, G F4 8.65 9.1 9.56 20 10 600 0.25 3 7
MMSZ5240BT1, G F5 9.50 10 10.50 20 17 600 0.25 3 8
MMSZ5241BT1, G H1 10.45 11 11.55 20 22 600 0.25 2 8.4
MMSZ5242BT1, G H2 11.40 12 12.60 20 30 600 0.25 1 9.1
MMSZ5243BT1, G H3 12.35 13 13.65 9.5 13 600 0.25 0.5 9.9
MMSZ5244BT1, G H4 13.30 14 14.70 9.0 15 600 0.25 0.1 10
MMSZ5245BT1, G H5 14.25 15 15.75 8.5 16 600 0.25 0.1 11
MMSZ5246BT1, G J1 15.20 16 16.80 7.8 17 600 0.25 0.1 12
MMSZ5247BT1, G J2 16.15 17 17.85 7.4 19 600 0.25 0.1 13
MMSZ5248BT1, G J3 17.10 18 18.90 7.0 21 600 0.25 0.1 14
MMSZ5249BT1, G J4 18.05 19 19.95 6.6 23 600 0.25 0.1 14
MMSZ5250BT1, G J5 19.00 20 21.00 6.2 25 600 0.25 0.1 15
MMSZ5251BT1, G K1 20.90 22 23.10 5.6 29 600 0.25 0.1 17
MMSZ5252BT1, G K2 22.80 24 25.20 5.2 33 600 0.25 0.1 18
MMSZ5253BT1, G K3 23.75 25 26.25 5.0 35 600 0.25 0.1 19
MMSZ5254BT1, G K4 25.65 27 28.35 4.6 41 600 0.25 0.1 21
MMSZ5255BT1, G K5 26.60 28 29.40 4.5 44 600 0.25 0.1 21
MMSZ5256BT1, G M1 28.50 30 31.50 4.2 49 600 0.25 0.1 23
MMSZ5257BT1, G M2 31.35 33 34.65 3.8 58 700 0.25 0.1 25
MMSZ5258BT1, G M3 34.20 36 37.80 3.4 70 700 0.25 0.1 27
MMSZ5259BT1, G M4 37.05 39 40.95 3.2 80 800 0.25 0.1 30
MMSZ5260BT1, G M5 40.85 43 45.15 3.0 93 900 0.25 0.1 33
MMSZ5261BT1, G N1 44.65 47 49.35 2.7 105 1000 0.25 0.1 36
MMSZ5262BT1, G N2 48.45 51 53.55 2.5 125 1100 0.25 0.1 39
MMSZ5263BT1, G N3 53.20 56 58.80 2.2 150 1300 0.25 0.1 43
MMSZ5264BT1, G N4 57.00 60 63.00 2.1 170 1400 0.25 0.1 46
MMSZ5265BT1, G N5 58.90 62 65.10 2.0 185 1400 0.25 0.1 47
MMSZ5266BT1, G P1 64.60 68 71.40 1.8 230 1600 0.25 0.1 52
MMSZ5267BT1, G P2 71.25 75 78.75 1.7 270 1700 0.25 0.1 56
MMSZ5268BT1, G P3 77.90 82 86.10 1.5 330 2000 0.25 0.1 62
MMSZ5269BT1 P4 82.65 87 91.35 1.4 370 2200 0.25 0.1 68
MMSZ5270BT1, G P5 86.45 91 95.55 1.4 400 2300 0.25 0.1 69
MMSZ5272BT1, G 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 = 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.
*The “G’’ suffix indicates Pb−Free package available.
MMSZ5221BT1 Series
http://onsemi.com
4
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 −55°C to +150°C)
TYPICAL TC VALUES
FOR MMSZ5221BT1 SERIES
VZ @ IZT
1000
10
110 200
VZ, NOMINAL ZENER VOLTAGE (V)
Figure 2. Temperature Coefficients
(Temperature Range −55°C to +150°C)
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 = 25°C
100
VZ, NOMINAL ZENER VOLTAGE
Figure 5. Effect of Zener Voltage on
Zener Impedance
101
1000
100
10
1
TJ = 25°C
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 (MMSZ5267BT1)
91 V (MMSZ5270BT1)
150°C75°C 25°C 0°C
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 MMSZ5221BT1 SERIES
VZ @ IZT
MMSZ5221BT1 Series
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5
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 = 25°C
0 V BIAS
1 V BIAS
12
VZ, ZENER VOLTAGE (V)
100
10
1
0.1
0.01 1086420
TA = 25°C
VZ, ZENER VOLTAGE (V)
100
10
1
0.1
0.01 10 30 50 70 90
TA = 25°C
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
+150°C
+25°C
−55°C
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)
MMSZ5221BT1 Series
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6
PACKAGE DIMENSIONS
SOD−123
CASE 425−04
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 Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
1.22
0.048
ÉÉÉ
ÉÉÉ
ÉÉÉ
0.91
0.036
2.36
0.093
4.19
0.165
ǒmm
inchesǓ
SCALE 10:1
ÉÉÉ
ÉÉÉ
ÉÉÉ
q
--- ---
q00
10 10
°°° °
STYLE 1:
PIN 1. CATHODE
2. ANODE
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MMSZ5221BT1/D
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