MMBZ5229BLT1G
Part Number MMBZ5229BLT1G
Manufacturer onsemi
Description DIODE ZENER 4.3V 225MW SOT23-3
Quantity Available 18455 pcs new original in stock.
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Technical Information of MMBZ5229BLT1G
Manufacturer Part Number MMBZ5229BLT1G Category Discrete Semiconductor
Manufacturer AMI Semiconductor/onsemi Description DIODE ZENER 4.3V 225MW SOT23-3
Package / Case SOT-23-3 (TO-236) Quantity Available 18455 pcs
Voltage - Zener (Nom) (Vz) 4.3 V Voltage - Forward (Vf) (Max) @ If 900 mV @ 10 mA
Tolerance ±5% Supplier Device Package SOT-23-3 (TO-236)
Series - Power - Max 225 mW
Package / Case TO-236-3, SC-59, SOT-23-3 Package Tape & Reel (TR)
Operating Temperature -65°C ~ 150°C Mounting Type Surface Mount
Impedance (Max) (Zzt) 22 Ohms Current - Reverse Leakage @ Vr 5 µA @ 1 V
Base Product Number MMBZ5229  
DownloadMMBZ5229BLT1G PDF - DE.pdfMMBZ5229BLT1G PDF - FR.pdfMMBZ5229BLT1G PDF - ES.pdfMMBZ5229BLT1G PDF - IT.pdfMMBZ5229BLT1G PDF - KR.pdf

Manufacturer Part Number

MMBZ5229BLT1G

Description

Zener diode for voltage regulation at 4.3V, maximum dissipation of 225mW. Designed for surface mounting in SOT-23-3 (TO-236-3) package. Provides circuit protection and voltage clamping with a 5% tolerance, suitable for compact PCB layouts.

Specifications

Nominal Zener Voltage: 4.3V

Maximum Power Dissipation: 225mW

Zener Voltage Tolerance: ±5%

Maximum Zener Impedance: 22 Ohms

Reverse Leakage Current: 5µA at 1V

Maximum Forward Voltage: 900mV at 10mA

Operating Temperature Range: -65°C to +150°C

Package Type: SOT-23-3 / TO-236-3 / SC-59

Mounting Method: Surface Mount

RoHS Status: ROHS3 Compliant

MSL: 1 (Unlimited)

REACH Status: REACH Unaffected

ECCN: EAR99

HTSUS: 8541.10.0050

Device Structure

Single Zener diode in SOT-23-3 (TO-236-3) surface mount package. Three terminals for easy placement on PCBs. Encapsulated in plastic for standard protection and enhanced reliability.

Performance Characteristics

Stable Zener voltage at 4.3V with tolerance of ±5%. Low reverse leakage current (5µA @ 1V), ensuring minimal power loss. High temperature performance up to 150°C. Suitable for low-power applications with maximum power dissipation of 225mW. Fast response for voltage clamping and over-voltage protection.

Application Environments

General purpose voltage regulation

Over-voltage protection for logic circuits

Clamping diodes in consumer electronics

Portable devices

Automotive electronics

Industrial control systems

Compatible with high-density surface mount designs

Selection Guidelines

Choose this model for circuits requiring precise voltage clamping at around 4.3V. Ensure total power dissipation does not exceed 225mW. Check temperature range meets application environment. Suitable for automated SMT assembly. Use when compactness and reliability are needed.

Usage Considerations

Verify required Zener voltage and tolerance.

Ensure mounting method matches SOT-23-3 footprint.

Confirm power dissipation limits for safe operation.

Consider ambient operating temperature for ratings.

Assess compatibility with RoHS and REACH regulations for your region.

Store and handle using standard precautions for moisture sensitive devices, though MSL 1 allows unlimited floor life.

Potential Equivalent/Replacement Models

Equivalent models may include diodes with similar voltage, tolerance, package, and power rating. Common alternatives are:

Vishay MM3Z4V3T1G

Diodes Inc. BZT52C4V3-7-F

Nexperia BZT52C4V3S-7-F

ROHM SMMB5229LT1

Fairchild MM1Z4V3T1G

If none of these fully meet your requirements or if your design needs a different parameter, please contact our website Ariat-Tech sales team for more information on compatible alternatives.

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