MMBZ5230BLT1G

Single Zener Diodes Overview

The MMBZ5230BLT1G is a single Zener voltage regulator diode from onsemi, housed in an SOT-23 surface-mount package. It features a nominal Zener voltage of 4.7 V with a tolerance range of 4.46 V to 4.94 V at a test current of 20 mA. The device has a maximum power dissipation rating of 225 mW on FR-4 or FR-5 boards and 300 mW on alumina substrates. Key electrical characteristics include a maximum Zener impedance of 19 Ohms at the test current and a reverse leakage current of 5 µA at 2 V. The component operates within a junction temperature range of -65°C to +150°C.

Single Zener Diodes Feature Summary

• Designed for voltage regulation with minimal space requirements in high-density PCB layouts.
• Package optimized for automated board assembly processes.
• ESD protection capability rated at Class 3 (>16 kV) per the human body model.

Single Zener Diodes Applications

• Cellular phones
• Handheld portable devices
• High density PC boards

Single Zener Diodes Procurement Notes

Verify the specific part number suffix against official documentation to confirm packaging type and compliance status. Ensure that the ordering information matches the required tape and reel specifications for automated assembly. Confirm RoHS compliance and lead-free status as indicated in the manufacturer's datasheet before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a precise 4.7 V reference is needed in a compact form factor. Consider the 225 mW thermal dissipation limit on standard FR-4 substrates during circuit design. Evaluate the 19 Ohm dynamic impedance for applications requiring stable regulation under varying load currents.

Single Zener Diodes Part Context

This device belongs to the MMBZ52xxBLT1G series of Zener voltage regulators. The series offers a wide range of Zener voltages from 2.4 V to 91 V in the same SOT-23 package. This allows designers to maintain consistent footprint and assembly processes across different voltage requirements within a product line.

Single Zener Diodes Replacement Considerations

Other members of the MMBZ52xxBLT1G series share the same package and general characteristics but differ in Zener voltage. Verify that the replacement part's voltage rating and impedance match the circuit requirements.