MMSZ5221B-MMSZ5259B
Technical Data
Data Sheet N0205, Rev. B
MMSZ5221B-MMSZ5259B ZENER DIODES
Features
SOD-123
Circuit Diagram
Planar Die Construction
500mW Power Dissipation
2.4V- 39V Standoff Voltage
5% Nominal Zener Voltage
Designed for Surface Mount Application
Plastic Material-UL Recognition Flammability
Classification 94V-O
This is a Halogen Free Device
“-A” is an AEC-Q101 qualified device
All SMC parts are traceable to the wafer lot
Additional testing can be offered upon request
Mechanical Data
Case: SOD-123, Molded Plastic
Terminals: Plated Leads Solderable per MIL-STD-202,
Method 208
Polarity: Cathode Band
Weight: 0.01 grams(approx)
Maximum Ratings @TA=25°C unless otherwise specified
Characteristic
Symbol
Value
Units
Power Dissipation (Note 1)
PD
500
mW
Forward Voltage (Note 2) @ IF = 10mA
VF
0.9
V
RθJA
357
°C/W
TJ,TSTG
-55 to 150
°C
Typical Thermal resistance junction to Ambient Air
Operating Junction and Storage
Temperature Range
Notes: 1. Device mounted on ceramic PCB; 7.6 mm x 9.4 mm x 0.87 mm with pad areas 25 mm2.
2. Tested with pulses, Tp≤1.0ms.
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MMSZ5221B-MMSZ5259B
Technical Data
Data Sheet N0205, Rev. B
Electrical Characteristics @TA=25°C unless otherwise specified
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MMSZ5221B-MMSZ5259B
Technical Data
Data Sheet N0205, Rev. B
Ratings and Characteristics Curves
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MMSZ5221B-MMSZ5259B
Technical Data
Data Sheet N0205, Rev. B
Mechanical Dimensions SOD-123
SYMBOL
Millimeters
Inches
MIN.
MAX.
MIN.
MAX.
A
A1
A2
b
1.050
0.000
1.050
0.450
1.250
0.100
1.150
0.650
0.041
1
0.000
0.041
0.018
0.049
0.004
0.045
0.026
c
0.080
0.150
0.003
0.006
D
E
E1
L
L1
θ
1.500
1.700
2.600
2.800
3.550
3.850
0.500 REF.
0.250
0.450
0°
8°
0.059
0.067
0.102
0.110
0.140
0.152
0.020 REF.
0.010
0.018
0°
8°
Note: If date code is before 2016 year, please contact with factory about marking.
Ordering Information
Device
MMSZ5221BMMSZ5259B
MMSZ5221BTRMMSZ5259BTR
Marking Diagram
Package
Shipping
SOD-123
3000pcs / reel
SOD-123
3000pcs / reel
For information on tape and reel specifications, including part
orientation and tape sizes, please refer to our tape and reel
packaging specification.
C1
= Marking code
Carrier Tape Specification SOD-123
SYMBOL
A
B
C
d
E
F
P
P0
P1
W
Millimeters
Min.
Max.
1.80
3.89
1.52
1.45
1.65
3.40
3.90
3.90
1.90
7.90
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1.90
3.99
1.62
1.65
1.85
3.60
4.10
4.10
2.10
8.30
MMSZ5221B-MMSZ5259B
Technical Data
Data Sheet N0205, Rev. B
DISCLAIMER:
1- The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product
characteristics. Before ordering, purchasers are advised to contact the SMC Diode Solutions sales department for the latest version of
the datasheet(s).
2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment,
medical equipment , and safety equipment) , safety should be ensured by using semiconductor devices that feature assured safety or by
means of users’ fail-safe precautions or other arrangement .
3- In no event shall SMC Diode Solutions be liable for any damages that may result from an accident or any other cause during
operation of the user’s units according to the datasheet(s). SMC Diode Solution assumes no responsibility for any intellectual property
claims or any other problems that may result from applications of information, products or circuits described in the datasheets.
4- In no event shall SMC Diode Solutions be liable for any failure in a semiconductor device or any secondary damage resulting from use
at a value exceeding the absolute maximum rating.
5- No license is granted by the datasheet(s) under any patents or other rights of any third party or SMC Diode Solutions.
6- The datasheet(s) may not be reproduced or duplicated, in any form, in whole or part, without the expressed written permission of SMC
Diode Solutions.
7- The products (technologies) described in the datasheet(s) are not to be provided to any party whose purpose in their application will
hinder maintenance of international peace and safety nor are they to be applied to that purpose by their direct purchasers or any third
party. When exporting these products (technologies), the necessary procedures are to be taken in accordance with related laws and
regulations..
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