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

onsemi MM3Z13VB

Name: MM3Z13VB
Brand: onsemi
SKU: MM3Z13VB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MM3Z13VB

Manufacturer:: onsemi

Category:: Single Zener Diodes

Package:: SC-90, SOD-323F

Datasheet:: MM3Z13VB.pdf

Description:: DIODE ZENER 13V 200MW SOD323F

Quantity:: RFQ Add To RFQ list

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Inventory:20,620

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Product details

Overview

MM3Z13VB from onsemi is a 13 V, ±2% tolerance Zener diode in SOD−323FL package, rated for 200 mW power dissipation, with 28 Ω dynamic impedance at 5 mA test current and 0.09 µA reverse leakage at 8 V. It provides precision voltage regulation in low-power biasing and reference circuits.

For engineers reviewing the MM3Z13VB datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, thermal behavior, cathode/anode terminal roles, SOD−323FL package dimensions, and validated alternatives for voltage reference design and overvoltage protection.

Technical Context

The MM3Z13VB operates as a two-terminal silicon Zener diode optimized for stable reverse-bias breakdown at 13 V nominal. Its ±2% V_Z tolerance and low 28 Ω Z_ZT at I_ZT = 5 mA enable tight regulation in low-current references.

Designed for surface-mount use in space-constrained applications, it features matte tin (Pb-free) termination, 595 °C/W junction-to-ambient thermal resistance, and guaranteed operation from −65 °C to +150 °C storage temperature range.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	12.74 V (min) to 13.26 V (max) at I_ZT = 5 mA - defines precise regulation window for reference stability
Zener Impedance (Z_ZT)	28 Ω max at I_ZT = 5 mA - ensures minimal output voltage variation under load changes
Power Dissipation (P_D)	200 mW at T_A = 25 °C - sets maximum continuous DC power handling in ambient conditions
Reverse Leakage (I_R)	0.09 µA max at V_R = 8 V - guarantees negligible current draw in standby or sensing nodes
Junction Temperature (T_J)	150 °C max - determines upper thermal limit for reliable long-term operation
Package	SOD−323FL (Case 477AB) - ultra-small 1.7 mm × 1.25 mm footprint with gull-wing leads for high-density PCB layout

Pinout & Package

SOD−323FL is a surface-mount plastic package with two terminals: anode (pin 1) and cathode (pin 2), marked by a cathode band on the device body. The package measures 1.7 mm × 1.25 mm × 0.95 mm (L × W × H) and uses matte tin (Pb-free) finish.

Pin/Terminal	Circuit Role	Design Meaning
1 (Anode)	Forward conduction terminal / Zener reference ground node	Connected to circuit ground or lower-potential rail when used in reverse-bias regulation
2 (Cathode)	Zener breakdown terminal / regulated output node	Provides stable 13 V reference voltage when reverse-biased above breakdown threshold

Key Features

Feature	Design Value
±2% Zener voltage tolerance	Enables accurate voltage referencing without post-production trimming in precision analog circuits
200 mW power rating	Supports regulation in low-power sensor interfaces, microcontroller reset circuits, and battery-monitoring paths
SOD−323FL ultra-small package	Reduces board area by >50% vs. SOD-123, enabling compact wearables and IoT edge nodes
Pb-free matte tin finish	Ensures RoHS compliance and solderability compatibility with standard reflow profiles (J-STD-020)

Applications

Microcontroller Reset Circuit	Low-Power Sensor Reference
Use Scenario: Providing a stable 13 V threshold to trigger reset logic during brown-out events in ARM Cortex-M0+ systems. IC Role / Device Role / Timing Role: Zener diode acting as precision voltage comparator input reference. Use Value: Tight ±2% V_Z tolerance ensures consistent reset activation across temperature and unit variance.	Use Scenario: Supplying a fixed bias point for a MEMS pressure sensor amplifier stage operating from a 15 V supply rail. IC Role / Device Role / Timing Role: Two-terminal shunt regulator establishing stable 13 V reference for op-amp feedback network. Use Value: 28 Ω Z_ZT minimizes reference drift under varying sensor load currents up to 5 mA.
Overvoltage Clamp for RS-485 Transceiver	ADC Input Protection Network
Use Scenario: Clamping transient surges on RS-485 bus lines to protect MAX13487E transceiver inputs. IC Role / Device Role / Timing Role: Bidirectional transient suppressor configured in reverse-bias mode with series resistor. Use Value: 13 V breakdown voltage aligns with transceiver absolute maximum ratings while maintaining signal integrity.	Use Scenario: Limiting input voltage to ADS1115 16-bit ADC channel to prevent damage from accidental 15 V misconnection. IC Role / Device Role / Timing Role: Passive shunt limiter placed before RC anti-aliasing filter. Use Value: 0.09 µA reverse leakage at 8 V avoids loading high-impedance sensor sources during normal operation.

Microcontroller Reset Circuit

Low-Power Sensor Reference

Use Scenario: Providing a stable 13 V threshold to trigger reset logic during brown-out events in ARM Cortex-M0+ systems.

IC Role / Device Role / Timing Role: Zener diode acting as precision voltage comparator input reference.

Use Value: Tight ±2% V_Z tolerance ensures consistent reset activation across temperature and unit variance.

Use Scenario: Supplying a fixed bias point for a MEMS pressure sensor amplifier stage operating from a 15 V supply rail.

IC Role / Device Role / Timing Role: Two-terminal shunt regulator establishing stable 13 V reference for op-amp feedback network.

Use Value: 28 Ω Z_ZT minimizes reference drift under varying sensor load currents up to 5 mA.

Overvoltage Clamp for RS-485 Transceiver

ADC Input Protection Network

Use Scenario: Clamping transient surges on RS-485 bus lines to protect MAX13487E transceiver inputs.

IC Role / Device Role / Timing Role: Bidirectional transient suppressor configured in reverse-bias mode with series resistor.

Use Value: 13 V breakdown voltage aligns with transceiver absolute maximum ratings while maintaining signal integrity.

Use Scenario: Limiting input voltage to ADS1115 16-bit ADC channel to prevent damage from accidental 15 V misconnection.

IC Role / Device Role / Timing Role: Passive shunt limiter placed before RC anti-aliasing filter.

Use Value: 0.09 µA reverse leakage at 8 V avoids loading high-impedance sensor sources during normal operation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX384-B13	Same 13 V nominal, ±2% tolerance, but in SOD-323 package (not FL variant); R_JA = 625 °C/W vs. 595 °C/W	Marginally higher thermal resistance may reduce power margin in high-ambient environments	Select BZX384-B13 only if legacy SOD-323 footprint compatibility is required over thermal performance
MMSZ4685	13 V nominal, ±5% tolerance; 30 Ω Z_ZT at 5 mA; same SOD-323FL package	Looser tolerance increases reference uncertainty in precision biasing; suitable for non-critical clamping	Choose MMSZ4685 where cost sensitivity outweighs regulation accuracy requirements

Compared with MM3Z13VB, BZX384-B13 offers identical electrical function but slightly reduced thermal efficiency, while MMSZ4685 trades ±2% tolerance for broader availability and lower unit cost-making MM3Z13VB optimal for designs demanding tight regulation in minimal footprint.

Availability

MM3Z13VB is available at Aetrix Electronics and suitable for microcontroller reset circuits, low-power sensor references, overvoltage clamping, ADC input protection, and precision bias networks requiring stable component supply and RoHS-compliant packaging.

Supply support for MM3Z13VB 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 MM3Z13VB belongs to the MM3Z2V4B–MM3Z75VB Zener diode family, engineered for high-accuracy voltage reference and regulation in space-constrained, low-power electronic systems.

FAQ

What is the exact Zener voltage range for MM3Z13VB at 25 °C?

The MM3Z13VB has a guaranteed Zener voltage range of 12.74 V (minimum) to 13.26 V (maximum) when tested at I_ZT = 5 mA and T_A = 25 °C. This ±2% tolerance is specified per the onsemi datasheet Rev. 3 (August 2023) and reflects the device's precision regulation capability. The MM3Z13VB achieves this tight tolerance through process-controlled doping and laser trimming during manufacturing.

Does MM3Z13VB support Pb-free reflow soldering processes?

Yes, MM3Z13VB features a matte tin (Sn) finish and is fully Pb-free, compliant with RoHS Directive 2011/65/EU. It is qualified for standard lead-free reflow profiles per J-STD-020, including peak temperatures up to 260 °C. The SOD−323FL package construction and termination ensure reliable wetting and joint integrity without voiding or dewetting issues during automated assembly. MM3Z13VB maintains full specification compliance after reflow.

What is the maximum reverse leakage current for MM3Z13VB and at what voltage is it measured?

The MM3Z13VB exhibits a maximum reverse leakage current (I_R) of 0.09 µA when measured at V_R = 8 V and T_A = 25 °C. This value is confirmed in the Electrical Characteristics table of the official onsemi datasheet. Low leakage ensures minimal parasitic current draw in high-impedance reference nodes-critical for battery-powered MM3Z13VB applications such as portable sensor front-ends and ultra-low-power microcontroller supervisors.

Can MM3Z13VB be used in place of MM3Z12VB or MM3Z15VB without circuit modification?

No-MM3Z13VB is not a drop-in replacement for MM3Z12VB (12 V) or MM3Z15VB (15 V), as its nominal Zener voltage differs by ±1 V. Substituting alters regulation thresholds, potentially causing incorrect reset timing or overvoltage clamp levels. While all three share the same SOD−323FL package and pinout, the MM3Z13VB must be selected specifically where 13 V reference accuracy is required. Always verify system-level voltage margins before interchanging Zener variants.

What is the thermal resistance (R_JA) of MM3Z13VB and how does it affect power derating?

The MM3Z13VB has a junction-to-ambient thermal resistance (R_JA) of 595 °C/W, measured in free-air conditions per the onsemi datasheet. At 25 °C ambient, its full 200 mW rating applies; above that, power must be linearly derated-e.g., at 75 °C ambient, maximum allowable power drops to 100 mW. This R_JA value directly governs safe operating area in unheatsinked layouts and informs thermal design for MM3Z13VB in enclosed or high-temperature environments.

MM3Z13VB 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):: 13 V

Tolerance:: ±2%

Power - Max:: 200 mW

Impedance (Max) (Zzt):: 28 Ohms

Current - Reverse Leakage @ Vr:: 900 nA @ 8 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

MM3Z13VB FAQ

1.How can I place an order for MM3Z13VB through Aetrix?

Please submit a Request for Quotation (RFQ) for MM3Z13VB 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 MM3Z13VB reliable?

The price and inventory of MM3Z13VB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z13VB is usually 5 days.

3.What payment methods are accepted for MM3Z13VB?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z13VB transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MM3Z13VB?

MM3Z13VB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MM3Z13VB 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 MM3Z13VB?

For technical support, including MM3Z13VB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z13VB requirements.

6.How does Aetrix verify that MM3Z13VB is sourced from the original manufacturer or authorized distributors?

All MM3Z13VB 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 MM3Z13VB meets industry standards.

7.What is the process for return or replacement of MM3Z13VB?

All MM3Z13VB units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z13VB, 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 MM3Z13VB part is unused and in its original packaging.

Return procedure for MM3Z13VB:

1.Submit a request within 90 days.

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

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