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
• Pb−Free Packages are Available
Cathode
Anode
• 225 mW Rating on FR−4 or FR−5 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
MARKING
DIAGRAM
3
SOT−23
CASE 318
STYLE 8
xxx
Mechanical Characteristics
1
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
2
xxx = Specific Device Code
= Date Code
M
POLARITY: Cathode indicated by polarity band
FLAMMABILITY RATING: UL 94 V−0
ORDERING INFORMATION
†
MAXIMUM RATINGS
Device**
MMBZ52xxBLT1
Package
Shipping
Rating
Symbol
Max
Unit
SOT−23
3000/Tape & Reel
3000/Tape & Reel
Total Power Dissipation on FR−5 Board,
P
D
MMBZ52xxBLT1G SOT−23
(Pb−Free)
(Note 1) @ T = 25°C
225
1.8
mW
mW/°C
A
Derated above 25°C
MMBZ52xxBLT3
SOT−23 10,000/Tape & Reel
Thermal Resistance,
Junction−to−Ambient
R
556
°C/W
q
JA
MMBZ52xxBLT3G SOT−23 10,000/Tape & Reel
(Pb−Free)
Total Power Dissipation on Alumina
P
D
Substrate, (Note 2) @ T = 25°C
Derated above 25°C
300
2.4
mW
mW/°C
A
**The “T1” suffix refers to an 8 mm, 7 inch reel.
The “T3” suffix refers to an 8 mm, 13 inch reel.
Thermal Resistance,
Junction−to−Ambient
R
417
°C/W
°C
q
JA
†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.
Junction and Storage
Temperature Range
T , T
J
−65 to +150
stg
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.
DEVICE MARKING INFORMATION
See specific marking information in the device marking
column of the Electrical Characteristics table on page 3 of
this data sheet.
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.
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, 2004
1
Publication Order Number:
August, 2004 − Rev. 5
MMBZ5221BLT1/D