© Semiconductor Components Industries, LLC, 2011
November, 2011 Rev. 10
1Publication Order Number:
MMBZ5221BLT1/D
MMBZ52xxBLT1 Series,
SZMMBZ52xxBLT1G Series
Zener Voltage Regulators
225 mW SOT23 Surface Mount
This series of Zener diodes is offered in the convenient, surface
mount plastic SOT23 package. These devices are designed to provide
voltage regulation with minimum space requirement. They are well
suited for applications such as cellular phones, hand held portables,
and high density PC boards.
Features
225 mW Rating on FR4 or FR5 Board
Zener Voltage Range 2.4 V to 91 V
Package Designed for Optimal Automated Board Assembly
Small Package Size for High Density Applications
ESD Rating of Class 3 (>16 KV) per Human Body Model
AECQ101 Qualified and PPAP Capable
SZ Prefix for Automotive and Other Applications Requiring Unique
Site and Control Change Requirements
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:
260°C for 10 Seconds
POLARITY: Cathode indicated by polarity band
FLAMMABILITY RATING: UL 94 V0
MAXIMUM RATINGS
Rating Symbol Max Unit
Total Power Dissipation on FR5 Board,
(Note 1) @ TA = 25°C
Derated above 25°C
PD
225
1.8
mW
mW/°C
Thermal Resistance,
JunctiontoAmbient
RqJA 556 °C/W
Total Power Dissipation on Alumina
Substrate, (Note 2) @ TA = 25°C
Derated above 25°C
PD
300
2.4
mW
mW/°C
Thermal Resistance,
JunctiontoAmbient
RqJA 417 °C/W
Junction and Storage
Temperature Range
TJ, Tstg 65 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 = 1.0 X 0.75 X 0.62 in.
2. Alumina = 0.4 X 0.3 X 0.024 in, 99.5% alumina.
Device Package Shipping
ORDERING INFORMATION
SOT23
CASE 318
STYLE 8
3
Cathode
1
Anode
MMBZ52xxBLT1 SOT23 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
M
MMBZ52xxBLT3 SOT23 10,000/Tape &
Reel
3
1
2
MMBZ52xxBLT1G SOT23
(PbFree)
3000/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.
MMBZ52xxBLT3G SOT23
(PbFree)
10,000/Tape &
Reel
http://onsemi.com
xxx G
G
xxx = Specific Device Code
M = Date Code
G= PbFree Package
(Note: Microdot may be in either location)
SZMMBZ52xxBLT1G SOT23
(PbFree)
3000/Tape & Reel
SZMMBZ52xxBLT3G SOT23
(PbFree)
10,000/Tape &
Reel
MMBZ52xxBLT1 Series, SZMMBZ52xxBLT1G Series
http://onsemi.com
2
ELECTRICAL CHARACTERISTICS
(Pinout: 1-Anode, 2-No Connection, 3-Cathode) (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 @ IF
Zener Voltage Regulator
IF
V
I
IR
IZT
VR
VZ
VF
MMBZ52xxBLT1 Series, SZMMBZ52xxBLT1G Series
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS (Pinout: 1-Anode, 2-NC, 3-Cathode) (VF = 0.9 V Max @ IF = 10 mA for all types.)
Device
Device
Marking
Zener Voltage (Note 3) Zener Impedance Leakage Current
VZ (Volts) @ IZT ZZT @ IZT ZZK @ IZK IR @ VR
Min Nom Max mA W W mA mAVolts
SZ/MMBZ5221BL, G 18A 2.28 2.4 2.52 20 30 1200 0.25 100 1
SZ/MMBZ5222BL, G 18B 2.37 2.5 2.63 20 30 1250 0.25 100 1
MMBZ5223BL, G 18C 2.56 2.7 2.84 20 30 1300 0.25 75 1
MMBZ5224BL, G 18D 2.66 2.8 2.94 20 30 1400 0.25 75 1
SZ/MMBZ5225BL, G 18E 2.85 3 3.15 20 29 1600 0.25 50 1
SZ/MMBZ5226BL, G 8A 3.13 3.3 3.47 20 28 1600 0.25 25 1
SZ/MMBZ5227BL, G 8B 3.42 3.6 3.78 20 24 1700 0.25 15 1
SZ/MMBZ5228BL, G 8C 3.70 3.9 4.10 20 23 1900 0.25 10 1
SZ/MMBZ5229BL, G 8D 4.08 4.3 4.52 20 22 2000 0.25 5 1
SZ/MMBZ5230BL, G 8E 4.46 4.7 4.94 20 19 1900 0.25 5 2
SZ/MMBZ5231BL, G 8F 4.84 5.1 5.36 20 17 1600 0.25 5 2
SZ/MMBZ5232BL, G 8G 5.32 5.6 5.88 20 11 1600 0.25 5 3
SZ/MMBZ5233BL, G 8H 5.70 6 6.30 20 7 1600 0.25 5 3.5
SZ/MMBZ5234BL, G 8J 5.89 6.2 6.51 20 7 1000 0.25 5 4
SZ/MMBZ5235BL, G 8K 6.46 6.8 7.14 20 5 750 0.25 3 5
SZ/MMBZ5236BL, G 8L 7.12 7.5 7.88 20 6 500 0.25 3 6
SZ/MMBZ5237BL, G 8M 7.79 8.2 8.61 20 8 500 0.25 3 6.5
SZ/MMBZ5238BL, G 8N 8.26 8.7 9.14 20 8 600 0.25 3 6.5
SZ/MMBZ5239BL, G 8P 8.64 9.1 9.56 20 10 600 0.25 3 7
SZ/MMBZ5240BL, G 8Q 9.50 10 10.50 20 17 600 0.25 3 8
SZ/MMBZ5241BL, G 8R 10.4 11 11.55 20 22 600 0.25 2 8.4
SZ/MMBZ5242BL, G 8S 11.40 12 12.60 20 30 600 0.25 1 9.1
SZ/MMBZ5243BL, G 8T 12.35 13 13.65 9.5 13 600 0.25 0.5 9.9
SZ/MMBZ5244BL, G 8U 13.30 14 14.70 9 15 600 0.25 0.1 10
SZ/MMBZ5245BL, G 8V 14.25 15 15.75 8.5 16 600 0.25 0.1 11
SZ/MMBZ5246BL, G 8W 15.20 16 16.80 7.8 17 600 0.25 0.1 12
MMBZ5247BL, G 8X 16.15 17 17.85 7.4 19 600 0.25 0.1 13
SZ/MMBZ5248BL,G 8Y 17.10 18 18.90 7 21 600 0.25 0.1 14
SZ/MMBZ5249BL, G 8Z 18.05 19 19.95 6.6 23 600 0.25 0.1 14
SZ/MMBZ5250BL,G 81A 19.00 20 21.00 6.2 25 600 0.25 0.1 15
MMBZ5251BL, G 81B 20.90 22 23.10 5.6 29 600 0.25 0.1 17
MMBZ5252BL, G 81C 22.80 24 25.20 5.2 33 600 0.25 0.1 18
SZ/MMBZ5253BL, G 81D 23.75 25 26.25 5 35 600 0.25 0.1 19
SZ/MMBZ5254BL, G 81E 25.65 27 28.35 4.6 41 600 0.25 0.1 21
MMBZ5255BL, G 81F 26.60 28 29.40 4.5 44 600 0.25 0.1 21
SZ/MMBZ5256BL, G 81G 28.50 30 31.50 4.2 49 600 0.25 0.1 23
MMBZ5257BL, G 81H 31.35 33 34.65 3.8 58 700 0.25 0.1 25
SZ/MMBZ5258BL, G 81J 34.20 36 37.80 3.4 70 700 0.25 0.1 27
SZ/MMBZ5259BL, G 81K 37.05 39 40.95 3.2 80 800 0.25 0.1 30
SZ/MMBZ5260BL, G 81L 40.85 43 45.15 3 93 900 0.25 0.1 33
SZ/MMBZ5261BL, G 81M 44.65 47 49.35 2.7 105 1000 0.25 0.1 36
MMBZ5262BL, G 81N 48.45 51 53.55 2.5 125 1100 0.25 0.1 39
SZ/MMBZ5263BL, G 81P 53.20 56 58.80 2.2 150 1300 0.25 0.1 43
SZ/MMBZ5264BL, G 81Q 57.00 60 63.00 2.1 170 1400 0.25 0.1 46
MMBZ5265BL, G 81R 58.90 62 65.10 2 185 1400 0.25 0.1 47
MMBZ5266BL, G 81S 64.60 68 71.40 1.8 230 1600 0.25 0.1 52
MMBZ5267BL, G 81T 71.25 75 78.75 1.7 270 1700 0.25 0.1 56
MMBZ5268BL, G 81U 77.90 82 86.10 1.5 330 2000 0.25 0.1 62
MMBZ5270BL, G 81W 86.45 91 95.55 1.4 400 2300 0.25 0.1 69
3. Zener voltage is measured with a pulse test current IZ at an ambient temperature of 25°C
NOTE: MMBZ5233BLT1, MMBZ5246BLT1, MMBZ5251BLT1, and MMBZ5252BLT1 Not Available in 10,000/Tape & Reel.
The “G” suffix indicates PbFree package available.
MMBZ52xxBLT1 Series, SZMMBZ52xxBLT1G Series
http://onsemi.com
4
TYPICAL CHARACTERISTICS
VZ, TEMPERATURE COEFFICIENT (mV/ C)°θ
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 MMBZ5221BLT1 SERIES
VZ @ IZT
VZ, TEMPERATURE COEFFICIENT (mV/ C)°θ
100
10
110 100
VZ, NOMINAL ZENER VOLTAGE (V)
Figure 2. Temperature Coefficients
(Temperature Range 55°C to +150°C)
TYPICAL TC VALUES
FOR MMBZ5221BLT1 SERIES
VZ @ IZT
100
VZ, NOMINAL ZENER VOLTAGE
Figure 3. Effect of Zener Voltage on
Zener Impedance
101
ZZT, DYNAMIC IMPEDANCE ( )Ω
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 4. Typical Forward Voltage
1.21.11.00.90.80.70.60.50.4
IF, FORWARD CURRENT (mA)
1000
100
10
1
75 V (MMBZ5267BLT1)
91 V (MMBZ5270BLT1)
150°C75°C25°C0°C
MMBZ52xxBLT1 Series, SZMMBZ52xxBLT1G Series
http://onsemi.com
5
TYPICAL CHARACTERISTICS
C, CAPACITANCE (pF)
100
VZ, NOMINAL ZENER VOLTAGE (V)
Figure 5. 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
IZ, ZENER CURRENT (mA)
VZ, ZENER VOLTAGE (V)
100
10
1
0.1
0.0110 30 50 70 90
TA = 25°C
IR, LEAKAGE CURRENT ( A)μ
90
VZ, NOMINAL ZENER VOLTAGE (V)
Figure 6. Typical Leakage Current
1000
100
10
1
0.1
0.01
0.001
0.0001
0.00001 80706050403020100
+150°C
+25°C
55°C
IZ, ZENER CURRENT (mA)
Figure 7. Zener Voltage versus Zener Current
(VZ Up to 12 V)
Figure 8. Zener Voltage versus Zener Current
(12 V to 91 V)
MMBZ52xxBLT1 Series, SZMMBZ52xxBLT1G Series
http://onsemi.com
6
PACKAGE DIMENSIONS
SOT23 (TO236)
CASE 31808
ISSUE AP
D
A1
3
12
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH
THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM
THICKNESS OF BASE MATERIAL.
4. DIMENSIONS D AND E DO NOT INCLUDE MOLD FLASH,
PROTRUSIONS, OR GATE BURRS.
ǒmm
inchesǓ
SCALE 10:1
0.8
0.031
0.9
0.035
0.95
0.037
0.95
0.037
2.0
0.079
VIEW C
L
0.25
L1
q
e
EE
b
A
SEE VIEW C
DIM
A
MIN NOM MAX MIN
MILLIMETERS
0.89 1.00 1.11 0.035
INCHES
A1 0.01 0.06 0.10 0.001
b0.37 0.44 0.50 0.015
c0.09 0.13 0.18 0.003
D2.80 2.90 3.04 0.110
E1.20 1.30 1.40 0.047
e1.78 1.90 2.04 0.070
L0.10 0.20 0.30 0.004
0.040 0.044
0.002 0.004
0.018 0.020
0.005 0.007
0.114 0.120
0.051 0.055
0.075 0.081
0.008 0.012
NOM MAX
L1
H
2.10 2.40 2.64 0.083 0.094 0.104
HE
0.35 0.54 0.69 0.014 0.021 0.029
c
0−−− 10 0 −−− 10
q°°°°
STYLE 8:
PIN 1. ANODE
2. NO CONNECTION
3. CATHODE
*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*
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
N. American Technical Support: 8002829855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81358171050
MMBZ5221BLT1/D
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 3036752175 or 8003443860 Toll Free USA/Canada
Fax: 3036752176 or 8003443867 Toll Free USA/Canada
Email: orderlit@onsemi.com
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative