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MMSZ5221BT1 Datasheet, PDF (1/6 Pages) ON Semiconductor – Zener Voltage Regulators
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,
PD
(Note 1) @ TL = 75°C
500
mW
Derated above 75°C
6.7 mW/°C
Thermal Resistance, (Note 2)
Junction−to−Ambient
RqJA
340 °C/W
Thermal Resistance, (Note 2)
Junction−to−Lead
RqJL
150 °C/W
Junction and Storage Temperature Range TJ, Tstg −55 to
°C
+150
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits
are exceeded, device functional operation is not implied, 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.
© Semiconductor Components Industries, LLC, 2005
1
January, 2005 − Rev. 5
http://onsemi.com
1
Cathode
2
Anode
2
SOD−123
CASE 425
STYLE 1
1
MARKING DIAGRAM
ÂÂÂÂÂÂ xx M
xx = Specific Device Code
M = Date Code
ORDERING INFORMATION
Device**
Package
Shipping†
MMSZ52xxBT1 SOD−123 3000/Tape & Reel
MMSZ52xxBT1G SOD−123 3000/Tape & Reel
(Pb−Free)
MMSZ52xxBT3 SOD−123 10,000/Tape & Reel
MMSZ52xxBT3G SOD−123 10,000/Tape & Reel
(Pb−Free)
**The “T1” suffix refers to an 8 mm, 7 inch reel.
The “T3” suffix refers to an 8 mm, 13 inch 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.
DEVICE MARKING INFORMATION
See specific marking information in the device marking
column of the Electrical Characteristics table on page 3 of
this data sheet.
Devices listed in bold, italic are ON Semiconductor
Preferred devices. Preferred devices are recommended
choices for future use and best overall value.
Publication Order Number:
MMSZ5221BT1/D