MOTOROLA
SEMICONDUCTOR
TECHNICAL DATA
Designer’s™ Data Sheet
Surface Mount Silicon Zener Diodes
Plastic SODĆ123 Package
Three complete series of Zener Diodes are offered in the convenient, surface mount
plastic SOD-123 package. These devices provide a convenient alternative to the leadless
34 package style.
• 500 mW Rating on FR-4 or FR-5 Board
• Package Designed for Optimal Automated Board Assembly
• Corrosion Resistant Finish, Easily Solderable
• ESD Rating of Class 3 (exceeding 16 kV) per the Human Body Model
• Small Package Size for High Density Applications
• Available in 8 mm Tape and Reel
Add “T1” to the device number to order the 7 inch / 3000 unit reel.
Add “T3” to the device number to order the 13 inch / 10,000 unit reel.
• Wafer Fab Location: Phoenix, Arizona
Assembly/Test Location: Seremban, Malaysia
MMSZ5221BT1 thru MMSZ5270BT1
• General Purpose, Medium Current
• Wide Voltage Range — 2.4 to 91 Volts
MMSZ4678T1 thru MMSZ4717T1
• Low Operating Currents, Low Leakage, Sharp Breakdown Characteristics
• Wide Voltage Range — 1.8 to 43 Volts
MMSZ2V4T1 thru MMSZ75T1
• Specified Similar to European BZV55C Series
• Wide Voltage Range — 2.4 to 75 Volts
MMSZ5221BT1-
MMSZ5270BT1*
MMSZ4678T1-
MMSZ4717T1
MMSZ2V4T1-
MMSZ75T1
*Motorola Preferred Device Series
PLASTIC SURFACE
MOUNT
ZENER DIODES
500 MILLIWATTS
1.8 – 91 VOLTS
1
2
1: CATHODE
2: ANODE
CASE 425, STYLE 1
PLASTIC
DEVICE RATING (TA = 25°C unless otherwise noted)
Rating
Power Dissipation on FR-4 or FR-5 Board [1]
Derate above TL = 75°C
Thermal Resistance Junction to Lead [2]
Thermal Resistance Junction to Ambient [2]
Junction Temperature Range
Storage Temperature Range
Lead Solder Temperature – Maximum (10 sec. duration)
[1] FR-4 or FR-5 = 3.5 x 1.5 inches, using the Motorola minimum recommended footprint as shown in Figure 11.
[2] Thermal Resistance measurement obtained via Infrared Scan Method
Symbol
PD
—
RθJL
RθJA
TJ
Tstg
—
Value
500
6.7
150
340
–55 to +150
–55 to +150
260
Unit
mW
mW/°C
°C/W
°C
°C
°C
Designer’s Data for “Worst Case’’ Conditions — The Designer’s Data Sheet permits the design of most circuits entirely from the information presented. Limit curves — representing
boundaries on device characteristics — are given to facilitate “worst case’’ design.
Designer’s is a trademark of Motorola, Inc.
Thermal Clad is a trademark of the Bergquist Company.
Preferred devices are Motorola recommended choices for future use and best overall value.
Motorola TVS/Zener Device Data
500 mW Leadless (SOD-123) Data Sheet
7-145