ON Semiconductor MMSZ5221BT1 Technical data
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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
Void-free, transfer-molded, thermosetting plastic case
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) @ T
Derated above 75°C
Thermal Resistance, (Note 2)
Junction−to−Ambient
Thermal Resistance, (Note 2)
Junction−to−Lead
Junction and Storage Temperature Range TJ, T
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.
= 75°C
L
P
D
R
JA
R
JL
stg
500
6.7mWmW/°C
340 °C/W
150 °C/W
−55 to
+150
°C
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1
Cathode
2
1
2
Anode
SOD−123
CASE 425
STYLE 1
MARKING DIAGRAM
xx M
xx = Specific Device Code
M = Date Code
ORDERING INFORMATION
Device** Package Shipping
MMSZ52xxBT1 SOD−123 3000/Tape & Reel
MMSZ52xxBT1G SOD−123
(Pb−Free)
MMSZ52xxBT3 SOD−123 10,000/Tape & Reel
MMSZ52xxBT3G SOD−123
(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.
3000/Tape & Reel
10,000/Tape & Reel
†
Semiconductor Components Industries, LLC, 2005
January, 2005 − Rev. 5
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
Preferred devices. Preferred devices are recommended
choices for future use and best overall value.
1 Publication Order Number:
bold, italic
are ON Semiconductor
MMSZ5221BT1/D
MMSZ5221BT1 Series
ELECTRICAL CHARACTERISTICS (T
otherwise noted, V
Symbol
V
Z
I
ZT
Z
ZT
I
ZK
Z
ZK
I
R
V
R
I
F
V
F
= 0.95 V Max. @ IF = 10 mA)
F
Parameter
Reverse Zener Voltage @ I
ZT
Reverse Current
Maximum Zener Impedance @ I
Reverse Current
Maximum Zener Impedance @ I
Reverse Leakage Current @ V
Reverse Voltage
Forward Current
Forward Voltage @ I
F
= 25°C unless
A
ZT
ZK
R
I
I
F
VRV
Z
I
V
R
F
I
ZT
Zener Voltage Regulator
V
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2
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