MMBZ5221ELT1 Datasheet, PDF (1/6 Pages) ON Semiconductor – Zener Voltage Regulators

MMBZ5221ELT1 Series
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.
Specification 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
• Peak Power − 225 W (8 x 20 ms)
• 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
Peak Power Dissipation @ 20 ms (Note 1)
P_pk
@ T_L ≤ 25°C
Total Power Dissipation on FR−5 Board,
P_D
(Note 2) @ T_A = 25°C
Derated above 25°C
225
W
225
mW
1.8 mW/°C
Thermal Resistance −
Junction−to−Ambient
R_qJA
556
°C/W
Total Power Dissipation on Alumina
Substrate, (Note 3) @ T_A = 25°C
Derated above 25°C
P_D
300
mW
2.4 mW/°C
Thermal Resistance −
Junction−to−Ambient
R_qJA
417
°C/W
Junction and Storage
Temperature Range
T_J, T_stg −65 to
°C
+150
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. Nonrepetitive current pulse per Figure 9.
2. FR−5 = 1.0 X 0.75 X 0.62 in.
3. Alumina = 0.4 X 0.3 X 0.024 in., 99.5% alumina.
http://onsemi.com
3
Cathode
1
Anode
3
1
2
SOT−23
CASE 318
STYLE 8
MARKING DIAGRAM
xxx M
xxx = Specific Device Code
M = Date Code
ORDERING INFORMATION
Device
Package
Shipping^†
MMBZ52xxELT1 SOT−23 3000/Tape & Reel
MMBZ52xxELT3* SOT−23 10,000/Tape & 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.
*MMBZ5246EL, and MMBZ5252EL
Not Available in 10,000/Tape & Reel.
DEVICE MARKING INFORMATION
See specific marking information in the device marking
column of the Electrical Characteristics table on page 2 of
this data sheet.
© Semiconductor Components Industries, LLC, 2005
1
January, 2005 − Rev. 4
Publication Order Number:
MMBZ5221ELT1/D