Motorola Semiconductor MMSZ5221BT1 SERIES Data Sheet User Manual
Summary
These comprehensive datasheet details are for high-precision Zener Diodes, designed as reliable surface-mount voltage regulators in compact SOD-123 packages. The manual supplies critical engineering data—including electrical characteristics, power dissipation limits, and thermal performance—for circuits ranging from low current to medium power. This guide is essential for electronics designers and manufacturers who require stable voltage regulation solutions across a wide operational temperature range.
Page 1 Text Content
查询MMSZ5221BT1供应商 MOTOROLA SEMICONDUCTOR TECHNICAL DATA
Designer’s Data Sheet
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
PLASTIC SURFACE
34 package style.
MOUNT 500 m W Rating on FR-4 or FR-5 Board ZENER DIODES 500 MILLIWATTS
Package Designed for Optimal Automated Board Assembly
1.8–91 VOLTS
Corrosion Resistant Finish, Easily Solderable ESD Rating of Class 3 (exceeding 16 k V) 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. 1: CATHODE
Wafer Fab Location: Phoenix, Arizona 2: ANODE
Assembly/Test Location: Seremban, Malaysia
MMSZ5221BT1 thru MMSZ5270BT1 General Purpose, Medium Current Wide Voltage Range — 2.4 to 91 Volts
CASE 425, STYLE 1 PLASTIC
DEVICE RATING (TA = 25°C unless otherwise noted)
Rating Symbol Value Unit
Power Dissipation on FR-4 or FR-5 Board [1] PD m W Derate above TL = 75°C 6.7 m W/°C Thermal Resistance Junction to Lead [2] RθJL
Thermal Resistance Junction to Ambient [2] RθJA Junction Temperature Range TJ –55 to +150 °C Storage Temperature Range Tstg –55 to +150 °C Lead Solder Temperature – Maximum (10 sec. duration) °C [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
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 m W Leadless (SOD-123) Data Sheet
Page Summary Contents For Motorola Semiconductor MMSZ5221BT1 SERIES Data Sheet User Manual
Manual Details
| Brand | Motorola |
|---|---|
| Pages | 7 |
| File Size | 102.92 KB |
| Published | June 06, 2026 |
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Frequently Asked Questions
How should I handle soldering these Zener Diodes?
Always use preheating, and ensure the delta temperature between preheat and soldering does not exceed 100°C to prevent failure.
What is the maximum power dissipation rating?
The devices offer a Power Dissipation Rating of 500 mW on FR-4 or FR-5 boards.
How do I order a bulk quantity of these components?
Add "T1" for a 7 inch/3000 unit reel, or "T3" for a 13 inch/10,000 unit reel.
What is the range of operating temperatures?
Both junction and storage temperature ranges are listed as –55 to +150 °C.