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

onsemi MM5Z5V6

Name: MM5Z5V6
Brand: onsemi
SKU: MM5Z5V6
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MM5Z5V6

Manufacturer:: onsemi

Category:: Single Zener Diodes

Package:: SC-79, SOD-523F

Datasheet:: MM5Z5V6.pdf

Description:: DIODE ZENER 5.6V 200MW SOD523F

Quantity:: RFQ Add To RFQ list

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Inventory:8,173

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Product details

Overview

MM5Z5V6 from ON Semiconductor (formerly Fairchild) is a surface-mount Zener diode designed for precision voltage regulation and overvoltage protection in low-power circuits. It delivers a nominal Zener voltage of 5.6 V at 5 mA test current, with ±0.4 V tolerance (5.2–6.0 V), 40 Ω dynamic impedance, and 200 mW power dissipation in the ultra-compact SOD-523F package - ideal for space-constrained consumer electronics and portable power management.

For engineers reviewing the MM5Z5V6 datasheet, MM5Z5V6 pinout, MM5V6 application, or MM5Z5V6 equivalent, key selection criteria include its tight V_Z tolerance, low Z_ZT, high reliability across –55 °C to +150 °C, RoHS-compliant matte tin finish, and moisture sensitivity level 1 handling - all critical for battery-powered sensor nodes and USB interface protection.

Technical Context

The MM5Z5V6 operates as a two-terminal, silicon planar Zener diode optimized for stable reverse-biased breakdown. Its electrical behavior is defined by a specified Zener voltage (V_Z) at I_ZT = 5 mA, dynamic impedance (Z_ZT) ≤ 40 Ω, and knee impedance (Z_ZK) ≤ 200 Ω at I_ZK = 1 mA - ensuring predictable clamping under transient and steady-state conditions.

It features a cathode band marking on the SOD-523F package, conforms to JEITA SC79 standard dimensions, and is rated for continuous operation across –55 °C to +150 °C ambient temperature with no derating required up to 75 °C - enabling use in automotive under-hood and industrial control environments without thermal design overhead.

Key Specifications

Parameter	Value and Actual Design Meaning
V_Z @ I_ZT	5.2–6.0 V (tight 5.6 V nominal at 5 mA ensures accurate reference for LDO feedback or ADC bias)
Z_ZT @ I_ZT	≤ 40 Ω (low dynamic impedance minimizes output voltage variation under load changes)
P_D	200 mW (supports regulation in low-current signal paths without heatsinking)
I_R @ V_R	≤ 1 µA at 2 V (excellent reverse leakage enables low-quiescent monitoring circuits)
T_OPR	–55 °C to +150 °C (enables deployment in extended-temperature industrial and automotive applications)
Package	SOD-523F (0.7 mm height, 1.2 × 0.8 mm footprint - fits 0402-class PCB layouts)
MSL Level	Level 1 (no floor life limitation; supports standard SMT reflow without dry pack)

Pinout & Package

SOD-523F is a 2-lead, flat-lead, surface-mount plastic package with cathode indicated by a band. Total height is under 0.70 mm, and leads are matte tin (Sn) finished per RoHS requirements.

Pin/Terminal	Circuit Role	Design Meaning
1 (Anode)	Forward conduction terminal / Zener cathode reference ground	Connected to circuit ground or lower-potential node when used in shunt regulation
2 (Cathode)	Zener breakdown terminal / voltage reference output	Connected to regulated node or input side of series resistor; marked with band

Key Features

Feature	Design Value
Wide V_Z range coverage	Part of MM5Z2V4–MM5Z75V family (2.4–75 V), enabling single-source BOM consolidation
Ultra-low profile	0.7 mm max height allows stacking under shields or in ultra-thin wearables
Moisture Sensitivity Level 1	No baking or dry-pack required before reflow - reduces manufacturing overhead
RoHS-compliant finish	Matte tin (Sn) lead plating ensures solderability and eliminates Pb-related compliance risk
Green mold compound	Halogen-free epoxy meets IEC 61249-2-21 and IPC-4101D standards

Applications

USB Port ESD Clamp	Microcontroller Reset Circuit
Use Scenario: Protecting USB 2.0 D+ and D− lines from ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role: Low-capacitance shunt clamp that conducts transients to ground while holding line voltage below 6 V. Use Value: MM5Z5V6's 5.6 V V_Z and <1 µA leakage at 2 V ensure signal integrity during normal operation and fast clamping response.	Use Scenario: Generating a clean, temperature-stable reset threshold for ARM Cortex-M0+ MCUs. IC Role / Device Role: Precision voltage reference feeding comparator input in discrete reset generator. Use Value: Tight 5.2–6.0 V tolerance and <40 Ω Z_ZT maintain reset threshold accuracy across –40 °C to +85 °C operating range.
Low-Power Sensor Bias	ADC Reference Stabilizer
Use Scenario: Providing stable 5.6 V bias to MEMS pressure sensor analog front-end in battery-powered IoT node. IC Role / Device Role: Low-noise, low-current Zener source replacing higher-power LDO where quiescent current <10 µA is mandatory. Use Value: 1 µA leakage at 2 V and 200 mW rating allow direct connection to coin-cell supply with minimal self-heating.	Use Scenario: Stabilizing reference voltage for 12-bit SAR ADC in portable medical thermometer. IC Role / Device Role: Secondary reference buffer that improves PSRR and rejects supply ripple on internal V_REF rail. Use Value: 40 Ω Z_ZT and 5.6 V nominal value reduce code-to-code variation caused by supply noise below 1 LSB.

USB Port ESD Clamp

Microcontroller Reset Circuit

Use Scenario: Protecting USB 2.0 D+ and D− lines from ±8 kV contact ESD per IEC 61000-4-2.

IC Role / Device Role: Low-capacitance shunt clamp that conducts transients to ground while holding line voltage below 6 V.

Use Value: MM5Z5V6's 5.6 V V_Z and <1 µA leakage at 2 V ensure signal integrity during normal operation and fast clamping response.

Use Scenario: Generating a clean, temperature-stable reset threshold for ARM Cortex-M0+ MCUs.

IC Role / Device Role: Precision voltage reference feeding comparator input in discrete reset generator.

Use Value: Tight 5.2–6.0 V tolerance and <40 Ω Z_ZT maintain reset threshold accuracy across –40 °C to +85 °C operating range.

Low-Power Sensor Bias

ADC Reference Stabilizer

Use Scenario: Providing stable 5.6 V bias to MEMS pressure sensor analog front-end in battery-powered IoT node.

IC Role / Device Role: Low-noise, low-current Zener source replacing higher-power LDO where quiescent current <10 µA is mandatory.

Use Value: 1 µA leakage at 2 V and 200 mW rating allow direct connection to coin-cell supply with minimal self-heating.

Use Scenario: Stabilizing reference voltage for 12-bit SAR ADC in portable medical thermometer.

IC Role / Device Role: Secondary reference buffer that improves PSRR and rejects supply ripple on internal V_REF rail.

Use Value: 40 Ω Z_ZT and 5.6 V nominal value reduce code-to-code variation caused by supply noise below 1 LSB.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX584B5V6	V_Z = 5.6 V ±1%, Z_ZT = 30 Ω @ 5 mA, SOD-523 package, same MSL 1	Lower Z_ZT improves regulation stability but requires tighter process control	Preferred where <30 Ω impedance is needed for high-precision references
1N5232B	V_Z = 5.6 V ±5%, Z_ZT = 17 Ω @ 20 mA, DO-35 through-hole, 500 mW rating	Larger size and higher power limit suitability to prototyping or high-transient environments	Used when board real estate is not constrained and higher surge energy absorption is required

Compared with BZX584B5V6 and 1N5232B, the MM5Z5V6 offers best-in-class height (0.7 mm), industry-standard SOD-523F footprint compatibility, and optimal balance of tolerance (±0.4 V), impedance (≤40 Ω), and leakage (<1 µA) for automated SMT production of compact, reliable voltage references.

Availability

MM5Z5V6 is available at Aetrix Electronics and suitable for USB interface protection, microcontroller reset generation, and low-power sensor biasing requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for MM5Z5V6 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

ON Semiconductor (formerly Fairchild Semiconductor) is a global supplier of energy-efficient semiconductor components, specializing in power management, signal conditioning, and discrete devices for automotive, industrial, and consumer markets.

The MM5Z series is part of ON Semiconductor's precision Zener diode portfolio, engineered specifically for high-reliability voltage reference and overvoltage protection in miniaturized, high-volume electronic systems.

FAQ

What is the maximum power dissipation rating for MM5Z5V6?

The MM5Z5V6 has a maximum power dissipation (P_D) of 200 mW at T_A = 25 °C. This rating decreases linearly above 25 °C per its thermal resistance (R_JA = 500 °C/W). Derating is not required below 75 °C ambient, making MM5Z5V6 suitable for unheatsinked operation in most portable designs.

Does MM5Z5V6 meet RoHS and REACH requirements?

Yes, MM5Z5V6 is RoHS-compliant and REACH-conformant. It features matte tin (Sn) lead finish and green, halogen-free mold compound, meeting IEC 61249-2-21 and IPC-4101D standards. Full compliance documentation is available via ON Semiconductor's product page and Aetrix Electronics' material declarations.

What is the Zener voltage tolerance of MM5Z5V6 at 5 mA test current?

The MM5Z5V6 has a Zener voltage tolerance of ±0.4 V around its nominal 5.6 V rating - meaning V_Z falls between 5.2 V and 6.0 V when measured at I_ZT = 5 mA and T_A = 25 °C. This tight tolerance supports accurate voltage referencing in precision analog circuits without trimming.

Can MM5Z5V6 be used in automotive under-hood applications?

Yes, MM5Z5V6 is qualified for operation from –55 °C to +150 °C ambient temperature, matching AEC-Q200 stress test requirements for passive components. Its SOD-523F package, matte tin finish, and robust silicon construction make MM5Z5V6 suitable for engine control unit (ECU) voltage supervision and sensor biasing in non-safety-critical automotive subsystems.

How does the SOD-523F package of MM5Z5V6 compare to SOD-323 in size and thermal performance?

The SOD-523F package of MM5Z5V6 measures 1.2 × 0.8 mm with max height 0.7 mm - 20% smaller footprint and 30% lower profile than SOD-323. Its R_JA is 500 °C/W (vs. ~350 °C/W for SOD-323), reflecting reduced thermal mass; however, the 200 mW rating remains appropriate for low-duty-cycle or low-I_Z applications where MM5Z5V6's compactness outweighs thermal trade-offs.

MM5Z5V6 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: SC-79, SOD-523F

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Voltage - Zener (Nom) (Vz):: 5.6 V

Tolerance:: ±7%

Power - Max:: 200 mW

Impedance (Max) (Zzt):: 40 Ohms

Current - Reverse Leakage @ Vr:: 1 µA @ 2 V

Voltage - Forward (Vf) (Max) @ If:: -

Operating Temperature:: -55°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-523F

MM5Z5V6 FAQ

1.How can I place an order for MM5Z5V6 through Aetrix?

Please submit a Request for Quotation (RFQ) for MM5Z5V6 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 MM5Z5V6 reliable?

The price and inventory of MM5Z5V6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z5V6 is usually 5 days.

3.What payment methods are accepted for MM5Z5V6?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z5V6 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MM5Z5V6?

MM5Z5V6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MM5Z5V6 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 MM5Z5V6?

For technical support, including MM5Z5V6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z5V6 requirements.

6.How does Aetrix verify that MM5Z5V6 is sourced from the original manufacturer or authorized distributors?

All MM5Z5V6 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 MM5Z5V6 meets industry standards.

7.What is the process for return or replacement of MM5Z5V6?

All MM5Z5V6 units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z5V6, 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 MM5Z5V6 part is unused and in its original packaging.

Return procedure for MM5Z5V6:

1.Submit a request within 90 days.

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

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