ON Semiconductor MMBZ5221BLT1 Technical data
MMBZ5221BLT1 Series
f
l
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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.
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Features
• 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
• 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,
(Note 1) @ T
Derated above 25°C
Thermal Resistance,
Junction−to−Ambient
Total Power Dissipation on Alumina
Substrate, (Note 2) @ T
Derated above 25°C
Thermal Resistance,
Junction−to−Ambient
Junction and Storage
Temperature Range
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.
= 25°C
A
= 25°C
A
P
R
P
R
TJ, T
D
q
JA
D
q
JA
−65 to +150 °C
stg
225
1.8
556 °C/W
300
2.4
417 °C/W
mW
mW/°C
mW
mW/°C
3
Cathode
1
Anode
MARKING
DIAGRAM
3
1
2
xxx = Specific Device Code
M = Date Code
G = Pb−Free Package
(Note: Microdot may be in either location)
SOT−23
CASE 318
STYLE 8
xxx G
M
G
ORDERING INFORMATION
Device** Package Shipping
MMBZ52xxBL T1 SOT−23 3000/Tape & Reel
MMBZ52xxBLT1G SOT−23
(Pb−Free)
MMBZ52xxBL T3 SOT−23 10,000/Tape & Ree
MMBZ52xxBLT3G SOT−23
(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 Specification
Brochure, BRD801 1/D.
3000/Tape & Reel
10,000/Tape & Ree
†
DEVICE MARKING INFORMATION
See specific marking information in the device marking
column of the Electrical Characteristics table on page 3 o
this data sheet.
© Semiconductor Components Industries, LLC, 2005
July, 2005 − Rev. 9
Devices listed in bold, italic are ON Semiconductor
Preferred devices. Preferred devices are recommended
choices for future use and best overall value.
1 Publication Order Number:
MMBZ5221BLT1/D
MMBZ5221BLT1 Series
ELECTRICAL CHARACTERISTICS
(Pinout: 1-Anode, 2-No Connection, 3-Cathode) (TA = 25°C
unless otherwise noted, V
Symbol
V
I
ZT
Z
I
ZK
Z
I
V
I
V
Reverse Zener Voltage @ I
Z
Reverse Current
Maximum Zener Impedance @ I
ZT
Reverse Current
Maximum Zener Impedance @ I
ZK
Reverse Leakage Current @ V
R
Reverse Voltage
R
Forward Current
F
Forward Voltage @ I
F
= 0.95 V Max. @ IF = 10 mA)
F
Parameter
ZT
ZT
ZK
R
F
I
I
F
VRV
Z
I
V
R
I
ZT
Zener Voltage Regulator
F
V
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