MMBZ5221ELT1_0508 Datasheet, PDF (1/6 Pages) ON Semiconductor – Zener Voltage Regulators 225 mW SOT−23 Surface Mount

MMBZ5221ELT1 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
• 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
Total Power Dissipation on Alumina
Substrate, (Note 3) @ T_A = 25°C
Derated above 25°C
R_qJA
P_D
556
°C/W
300
mW
2.4 mW/°C
Thermal Resistance, Junction−to−Ambient R_qJA
Junction and Storage Temperature Range T_J, T_stg
417
−65 to
+150
°C/W
°C
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
MARKING
DIAGRAM
3
SOT−23
CASE 318
Bxx M G
1
STYLE 8
G
2
1
Bxx = Device Code
xx = (Refer to page 2)
M = Date Code*
G = Pb−Free Package
(Note: Microdot may be in either location)
*Date Code orientation may vary depending
upon manufacturing location.
ORDERING INFORMATION
Device
MMBZ52xxELT1
Package
Shipping^†
SOT−23 3000/Tape & Reel
MMBZ52xxELT1G SOT−23 3000/Tape & Reel
(Pb−Free)
MMBZ52xxELT3 SOT−23 10000/Tape & Reel
MMBZ52xxELT3G SOT−23 10000/Tape & Reel
(Pb−Free)
†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.
DEVICE MARKING INFORMATION
See specific marking information in the device marking
column of the Electrical Characteristics table on page 2 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
August, 2005 − Rev. 6
Publication Order Number:
MMBZ5221ELT1/D