MMBZ5221BLT1 Series
Preferred Device
Zener Voltage Regulators
225 mW SOT−23 Surface Mount
This series of Zener diodes is offered in the convenient, surface
mount plastic SOT−23 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.
http://onsemi.com
Features
3
1
• 225 mW Rating on FR−4 or FR−5 Board
Cathode
Anode
• 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
• Pb−Free Packages are Available
MARKING
DIAGRAM
3
SOT−23
CASE 318
STYLE 8
Mechanical Characteristics
xxx
G
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
G
1
2
xxx
M
= Specific Device Code
= Date Code
= Pb−Free Package
POLARITY: Cathode indicated by polarity band
FLAMMABILITY RATING: UL 94 V−0
G
(Note: Microdot may be in either location)
MAXIMUM RATINGS
ORDERING INFORMATION
Rating
Symbol
Max
Unit
Total Power Dissipation on FR−5 Board,
P
D
†
Device**
MMBZ52xxBLT1
Package
Shipping
(Note 1) @ T = 25°C
225
1.8
mW
mW/°C
A
SOT−23
3000/Tape & Reel
Derated above 25°C
Thermal Resistance,
Junction−to−Ambient
R
556
°C/W
q
JA
MMBZ52xxBLT1G SOT−23
(Pb−Free)
3000/Tape & Reel
Total Power Dissipation on Alumina
P
D
MMBZ52xxBLT3
SOT−23 10,000/Tape & Reel
Substrate, (Note 2) @ T = 25°C
300
2.4
mW
mW/°C
A
Derated above 25°C
MMBZ52xxBLT3G SOT−23 10,000/Tape & Reel
(Pb−Free)
Thermal Resistance,
Junction−to−Ambient
R
417
°C/W
°C
q
JA
**The “T1” suffix refers to an 8 mm, 7 inch reel.
The “T3” suffix refers to an 8 mm, 13 inch reel.
Junction and Storage
Temperature Range
T , T
J
−65 to +150
stg
†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.
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 = 1.0 X 0.75 X 0.62 in.
2. Alumina = 0.4 X 0.3 X 0.024 in, 99.5% alumina.
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.
Semiconductor Components Industries, LLC, 2005
1
Publication Order Number:
May, 2005 − Rev. 8
MMBZ5221BLT1/D
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