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.
Features
http://onsemi.com
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Pb−Free Packages are Available
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
1
2
3
Cathode
1
Anode
MARKING
DIAGRAM
3
SOT−23
CASE 318
STYLE 8
Mechanical Characteristics
CASE:
Void-free, transfer-molded, thermosetting plastic case
FINISH:
Corrosion resistant finish, easily solderable
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
xxx
260°C for 10 Seconds
POLARITY:
Cathode indicated by polarity band
FLAMMABILITY RATING:
UL 94 V−0
MAXIMUM RATINGS
Rating
Total Power Dissipation on FR−5 Board,
(Note 1) @ T
A
= 25°C
Derated above 25°C
Thermal Resistance,
Junction−to−Ambient
Total Power Dissipation on Alumina
Substrate, (Note 2) @ T
A
= 25°C
Derated above 25°C
Thermal Resistance,
Junction−to−Ambient
Junction and Storage
Temperature Range
Symbol
P
D
225
1.8
R
qJA
P
D
300
2.4
R
qJA
T
J
, T
stg
417
−65 to +150
mW
mW/°C
°C/W
°C
556
mW
mW/°C
°C/W
Max
Unit
Device**
MMBZ52xxBLT1
MMBZ52xxBLT1G
xxx = Specific Device Code
M = Date Code
ORDERING INFORMATION
Package
SOT−23
SOT−23
(Pb−Free)
SOT−23
Shipping
†
3000/Tape & Reel
3000/Tape & Reel
MMBZ52xxBLT3
MMBZ52xxBLT3G
10,000/Tape & Reel
SOT−23 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.
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, 2004
1
August, 2004 − Rev. 5
Publication Order Number:
MMBZ5221BLT1/D
M
ONSEMI [ ON SEMICONDUCTOR ]
