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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

onsemi MM3Z2V4C

Name: MM3Z2V4C
Brand: onsemi
SKU: MM3Z2V4C
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MM3Z2V4C

Manufacturer:: onsemi

Category:: Single Zener Diodes

Package:: SC-90, SOD-323F

Datasheet:: MM3Z2V4C.pdf

Description:: DIODE ZENER 2.4V 200MW SOD323F

Quantity:: RFQ Add To RFQ list

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Inventory:8,753

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Product details

Overview

MM3Z2V4C from onsemi is a 2.4 V ±5% Zener diode in SOD−323FL package, rated for 200 mW power dissipation and 150 °C junction temperature, with 94 Ω dynamic impedance at 5 mA test current, used for precision voltage reference and overvoltage protection in low-power analog circuits.

For engineers reviewing the MM3Z2V4C datasheet, pinout, applications, or equivalent options, key selection factors include its tight 5% tolerance, low 2.4 V breakdown voltage, SOD−323FL footprint compatibility, and verified thermal resistance of 595 °C/W under standard PCB mounting.

Technical Context

The MM3Z2V4C operates as a two-terminal voltage regulator diode, conducting in reverse bias above its nominal 2.4 V Zener voltage with specified dynamic impedance (94 Ω) and knee impedance (564 Ω) at defined test currents. Its electrical behavior is characterized under pulse conditions (10 ms) to minimize self-heating effects during measurement.

Designed for surface-mount use on standard FR-4 PCBs with minimum land pads, the device exhibits a forward voltage ≤1.0 V at 10 mA and leakage current ≤45 µA at 1 V reverse bias, supporting stable clamping in signal-level protection and reference applications.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	2.28 V to 2.52 V @ I_ZT = 5 mA - defines precise clamping threshold for low-voltage rail stabilization
Zener Impedance (Z_ZT)	94 Ω @ I_ZT = 5 mA - determines regulation accuracy under small-signal load variations
Power Dissipation (P_D)	200 mW - sets maximum continuous steady-state power handling without derating
Thermal Resistance (R_JA)	595 °C/W - indicates temperature rise per watt under standard SMD mounting conditions
Reverse Leakage (I_R)	≤45 µA @ V_R = 1 V - ensures minimal quiescent current in standby or high-impedance sensing nodes
Forward Voltage (V_F)	≤1.0 V @ I_F = 10 mA - supports reliable anode-cathode conduction in bidirectional clamp configurations

Pinout & Package

SOD−323FL package: ultra-compact surface-mount plastic case (Case 477AB), 1.7 mm × 1.25 mm × 0.95 mm, matte tin finish, Pb-free and RoHS compliant.

Pin/Terminal	Circuit Role	Design Meaning
1 (Anode)	Forward conduction terminal	Connects to lower-potential node in reverse-bias regulation; enables forward conduction below 1.0 V
2 (Cathode)	Zener breakdown terminal	Connects to higher-potential node; voltage referenced to this terminal during regulation

Key Features

Feature	Design Value
±5% Zener voltage tolerance	Enables accurate 2.4 V reference without external trimming in space-constrained designs
SOD−323FL ultra-small footprint	Reduces PCB area by >50% vs. SOD-123 while maintaining thermal performance via optimized pad layout
150 °C maximum junction temperature	Supports operation in automotive under-hood and industrial ambient environments without derating
Pb-free and RoHS-compliant construction	Meets global environmental compliance requirements for consumer, industrial, and medical end equipment

Applications

Low-Voltage Microcontroller Reset Circuit	USB Interface ESD Clamp
Use Scenario: Providing clean, stable reset voltage for 3.3 V or 2.5 V microcontrollers during power-up and brown-out events. IC Role / Device Role: Zener diode configured as shunt voltage reference and transient suppressor on reset line. Use Value: Tight 2.4 V ±5% tolerance ensures reliable reset assertion across temperature and supply variation without additional regulators.	Use Scenario: Protecting USB D+ and D− lines from electrostatic discharge up to ±8 kV contact discharge. IC Role / Device Role: Low-capacitance bidirectional clamp limiting line voltage to safe levels during ESD events. Use Value: Sub-1.0 V forward voltage and 45 µA leakage at 1 V enable minimal signal distortion and no DC loading on high-speed data lines.
Portable Sensor Signal Conditioning	Industrial 4–20 mA Loop Reference
Use Scenario: Biasing op-amp input stages and setting reference points in battery-powered gas or temperature sensors. IC Role / Device Role: Precision voltage reference and rail clamp in low-noise analog front-end circuitry. Use Value: 94 Ω Zener impedance and 200 mW rating allow stable operation at microamp-level quiescent currents with minimal drift.	Use Scenario: Generating stable 2.4 V reference for DAC output scaling and current loop calibration in programmable logic controllers. IC Role / Device Role: Shunt voltage reference in active current source feedback path. Use Value: 595 °C/W R_JA and 150 °C T_J support long-term stability in enclosed industrial enclosures with limited airflow.

Low-Voltage Microcontroller Reset Circuit

USB Interface ESD Clamp

Use Scenario: Providing clean, stable reset voltage for 3.3 V or 2.5 V microcontrollers during power-up and brown-out events.

IC Role / Device Role: Zener diode configured as shunt voltage reference and transient suppressor on reset line.

Use Value: Tight 2.4 V ±5% tolerance ensures reliable reset assertion across temperature and supply variation without additional regulators.

Use Scenario: Protecting USB D+ and D− lines from electrostatic discharge up to ±8 kV contact discharge.

IC Role / Device Role: Low-capacitance bidirectional clamp limiting line voltage to safe levels during ESD events.

Use Value: Sub-1.0 V forward voltage and 45 µA leakage at 1 V enable minimal signal distortion and no DC loading on high-speed data lines.

Portable Sensor Signal Conditioning

Industrial 4–20 mA Loop Reference

Use Scenario: Biasing op-amp input stages and setting reference points in battery-powered gas or temperature sensors.

IC Role / Device Role: Precision voltage reference and rail clamp in low-noise analog front-end circuitry.

Use Value: 94 Ω Zener impedance and 200 mW rating allow stable operation at microamp-level quiescent currents with minimal drift.

Use Scenario: Generating stable 2.4 V reference for DAC output scaling and current loop calibration in programmable logic controllers.

IC Role / Device Role: Shunt voltage reference in active current source feedback path.

Use Value: 595 °C/W R_JA and 150 °C T_J support long-term stability in enclosed industrial enclosures with limited airflow.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX384-B2V4	Same 2.4 V ±5%, but SOD-323 package (not FL variant); R_JA = 625 °C/W; VF = 0.9 V max	Marginally higher thermal resistance; identical clamping function in non-automotive PCB layouts	Select when legacy SOD-323 land pattern is fixed and 30 °C/W higher R_JA is acceptable
MMSZ4678	2.4 V ±5%, SOD-123 package; P_D = 500 mW; R_JA = 350 °C/W; Z_ZT = 100 Ω @ 5 mA	Larger footprint and higher power handling; better thermal performance but occupies ~2.5× more board area	Select when higher power margin or improved thermal management is required and space permits

Compared with BZX384-B2V4 and MMSZ4678, the MM3Z2V4C offers the smallest footprint and lowest profile among 2.4 V Zeners, with optimized thermal design for dense portable PCBs-though it trades absolute power headroom for miniaturization.

Availability

MM3Z2V4C is available at Aetrix Electronics and suitable for low-voltage reference design, ESD protection circuits, and sensor biasing applications requiring stable component supply and full traceability.

Supply support for MM3Z2V4C includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

onsemi (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The MM3Z2V4C belongs to onsemi's MM3Z series of miniature Zener diodes, engineered specifically for high-density, low-power voltage regulation and protection in portable and space-constrained electronic systems.

FAQ

What is the Zener voltage tolerance of MM3Z2V4C?

The MM3Z2V4C has a nominal Zener voltage of 2.4 V with a tolerance of ±5%, meaning its actual breakdown voltage falls between 2.28 V and 2.52 V when tested at 5 mA (I_ZT). This tolerance is guaranteed per onsemi's datasheet Rev. 3 (August 2023) and applies across the full operating temperature range.

What package type does MM3Z2V4C use?

The MM3Z2V4C uses the SOD−323FL package (Case 477AB), a leadless, ultra-thin surface-mount outline measuring 1.7 mm × 1.25 mm × 0.95 mm. It features matte tin (Sn) plating, is Pb-free, and complies with RoHS Directive 2011/65/EU.

What is the maximum power dissipation for MM3Z2V4C?

The MM3Z2V4C is rated for a maximum power dissipation of 200 mW at 25 °C ambient temperature, as specified in the Absolute Maximum Ratings table. Derating is required above 25 °C at 0.337 mW/°C based on its 595 °C/W junction-to-ambient thermal resistance.

How does MM3Z2V4C perform in forward bias?

In forward bias, the MM3Z2V4C exhibits a maximum forward voltage of 1.0 V at 10 mA (I_F), enabling predictable conduction in bidirectional clamp configurations. This characteristic supports dual-role usage-both as a Zener regulator and as a low-drop rectifier in protection circuits.

What is the reverse leakage current specification for MM3Z2V4C?

The MM3Z2V4C specifies a maximum reverse leakage current (I_R) of 45 µA at a reverse voltage (V_R) of 1 V, measured at 25 °C. This low leakage supports high-impedance node referencing and minimizes parasitic loading in precision analog signal paths.

MM3Z2V4C Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: SC-90, SOD-323F

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 2.4 V

Tolerance:: ±5%

Power - Max:: 200 mW

Impedance (Max) (Zzt):: 94 Ohms

Current - Reverse Leakage @ Vr:: 45 µA @ 1 V

Voltage - Forward (Vf) (Max) @ If:: 1 V @ 10 mA

Operating Temperature:: -65°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-323F

MM3Z2V4C FAQ

1.How can I place an order for MM3Z2V4C through Aetrix?

Please submit a Request for Quotation (RFQ) for MM3Z2V4C on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MM3Z2V4C reliable?

The price and inventory of MM3Z2V4C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z2V4C is usually 5 days.

3.What payment methods are accepted for MM3Z2V4C?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z2V4C transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MM3Z2V4C?

MM3Z2V4C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MM3Z2V4C order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MM3Z2V4C?

For technical support, including MM3Z2V4C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z2V4C requirements.

6.How does Aetrix verify that MM3Z2V4C is sourced from the original manufacturer or authorized distributors?

All MM3Z2V4C products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MM3Z2V4C meets industry standards.

7.What is the process for return or replacement of MM3Z2V4C?

All MM3Z2V4C units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z2V4C, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MM3Z2V4C part is unused and in its original packaging.

Return procedure for MM3Z2V4C:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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