Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

onsemi MM5Z2V7

Name: MM5Z2V7
Brand: onsemi
SKU: MM5Z2V7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MM5Z2V7

Manufacturer:: onsemi

Category:: Single Zener Diodes

Package:: SC-79, SOD-523F

Datasheet:: MM5Z2V7.pdf

Description:: DIODE ZENER 2.7V 200MW SOD523F

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:6,263

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MM5Z2V7 from ON Semiconductor (formerly Fairchild) is a surface-mount Zener diode designed for precision voltage regulation and overvoltage protection in low-power signal conditioning and biasing circuits. It delivers a nominal Zener voltage of 2.7 V at 5 mA test current, with ±0.2 V tolerance (2.5 V to 2.9 V), 100 Ω maximum Zener impedance at I_ZT, and 200 mW power dissipation in the ultra-compact SOD-523F package - ideal for space-constrained consumer and portable electronics.

For engineers reviewing the MM5Z2V7 datasheet, pinout, applications, or equivalent options, this device serves as a primary voltage reference in analog sensor interfaces, microcontroller reset circuits, and ESD-protected I/O clamping networks where tight voltage stability and minimal footprint are critical.

Technical Context

The MM5Z2V7 operates as a two-terminal, silicon planar Zener diode optimized for stable reverse-biased breakdown at low currents. Its 2.7 V nominal Zener voltage falls within the sub-3 V range suitable for modern low-voltage logic systems, and its 100 Ω dynamic impedance ensures predictable regulation under varying load conditions.

Designed for operation across –55 °C to +150 °C, it maintains specified electrical characteristics without derating, and its SOD-523F package supports high-density PCB layouts with JEITA SC79 compliance and moisture sensitivity level 1 - enabling reflow-compatible assembly without dry-pack requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	2.7 V nominal at 5 mA - sets precise reference point for 2.5–2.9 V regulation window in low-voltage bias networks
Zener Impedance (Z_ZT)	≤100 Ω at I_ZT = 5 mA - ensures minimal output voltage shift under small-signal current variations
Power Dissipation (P_D)	200 mW - supports continuous operation in battery-powered devices without thermal runaway risk
Reverse Leakage (I_R)	≤20 µA at V_R = 1 V - guarantees negligible quiescent current draw in always-on monitoring circuits
Operating Temperature	–55 °C to +150 °C - enables deployment in automotive under-hood and industrial control environments
Package	SOD-523F - 0.7 mm height, JEITA SC79-compliant footprint for <1.0 mm² board area usage

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 the device is mounted on FR-4 PCB with minimum land pad per JEDEC standards.

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 reverse-bias regulation configuration
2 (Cathode)	Zener breakdown terminal / regulated output node	Connected to voltage rail requiring stabilization; band-marked lead identifies this terminal for correct orientation

Key Features

Feature	Design Value
Wide Zener voltage range selection	2.4 V to 75 V family coverage - allows single-source design reuse across multiple voltage rails
Ultra-low profile SOD-523F package	0.7 mm max height - enables placement beneath connectors or in stacked-board assemblies
Pb-free and RoHS-compliant construction	Matte tin (Sn) lead finish - satisfies global environmental compliance without solderability trade-offs
Moisture Sensitivity Level 1	No dry-pack or baking required before reflow - reduces manufacturing overhead and handling risk

Applications

Microcontroller Reset Circuit	Low-Voltage Sensor Biasing
Use Scenario: Providing a stable 2.7 V threshold to trigger reset logic when supply voltage drops below operational margin. IC Role / Device Role: Precision voltage reference for reset supervisor IC input or comparator reference node. Use Value: Ensures deterministic reset behavior down to 2.5 V while rejecting noise due to ≤100 Ω Z_ZT.	Use Scenario: Establishing a fixed bias point for analog temperature or pressure sensors operating from 3.3 V rails. IC Role / Device Role: Low-current Zener shunt regulator supplying reference voltage to sensor excitation circuitry. Use Value: Delivers stable 2.7 V with <±0.2 V variation across –55 °C to +150 °C, minimizing sensor offset drift.
I/O Line ESD Clamping	Portable Device Power Rail Protection
Use Scenario: Protecting UART, I²C, or GPIO pins against transient overvoltage events up to ±8 kV contact discharge. IC Role / Device Role: Bidirectional clamping element placed between signal line and ground. Use Value: Fast response with ≤20 µA leakage at 1 V ensures no signal integrity degradation during normal operation.	Use Scenario: Safeguarding lithium-ion battery monitor ICs or fuel gauges from voltage spikes during charge/discharge transitions. IC Role / Device Role: Overvoltage limiter on 2.8–3.0 V auxiliary supply lines. Use Value: 200 mW power rating handles short-duration transients without thermal failure in compact wearable PCBs.

Microcontroller Reset Circuit

Low-Voltage Sensor Biasing

Use Scenario: Providing a stable 2.7 V threshold to trigger reset logic when supply voltage drops below operational margin.

IC Role / Device Role: Precision voltage reference for reset supervisor IC input or comparator reference node.

Use Value: Ensures deterministic reset behavior down to 2.5 V while rejecting noise due to ≤100 Ω Z_ZT.

Use Scenario: Establishing a fixed bias point for analog temperature or pressure sensors operating from 3.3 V rails.

IC Role / Device Role: Low-current Zener shunt regulator supplying reference voltage to sensor excitation circuitry.

Use Value: Delivers stable 2.7 V with <±0.2 V variation across –55 °C to +150 °C, minimizing sensor offset drift.

I/O Line ESD Clamping

Portable Device Power Rail Protection

Use Scenario: Protecting UART, I²C, or GPIO pins against transient overvoltage events up to ±8 kV contact discharge.

IC Role / Device Role: Bidirectional clamping element placed between signal line and ground.

Use Value: Fast response with ≤20 µA leakage at 1 V ensures no signal integrity degradation during normal operation.

Use Scenario: Safeguarding lithium-ion battery monitor ICs or fuel gauges from voltage spikes during charge/discharge transitions.

IC Role / Device Role: Overvoltage limiter on 2.8–3.0 V auxiliary supply lines.

Use Value: 200 mW power rating handles short-duration transients without thermal failure in compact wearable PCBs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX584B2V7	Same 2.7 V nominal Zener voltage, but in SOD-323 package (1.3 mm height); 150 mW P_D; higher Z_ZT (120 Ω)	Less suitable for ultra-thin designs; requires larger PCB area and has reduced regulation accuracy	Select only if SOD-323 footprint is already standardized in legacy layout and thermal margin permits lower power rating.
MM3Z2V7	Identical electrical specs and SOD-523F package, but manufactured by ON Semiconductor under alternate part numbering; same marking "51"	No functional or mechanical difference - fully interchangeable in new and existing designs	Preferred for new designs requiring direct sourcing continuity; identical performance and qualification status as MM5Z2V7.

Compared with BZX584B2V7, MM5Z2V7 offers tighter regulation (100 Ω vs. 120 Ω Z_ZT) and 33% higher power handling in half the height; versus MM3Z2V7, it shares identical specifications and form factor but reflects Fairchild's original product lineage now maintained under ON Semiconductor's portfolio.

Availability

MM5Z2V7 is available at Aetrix Electronics and suitable for portable electronics, automotive body control modules, and industrial sensor nodes requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for MM5Z2V7 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 is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and consumer markets.

The MM5Z2V7 belongs to ON Semiconductor's legacy Zener diode portfolio inherited from Fairchild, engineered specifically for high-reliability, low-profile voltage reference and protection in miniaturized electronic systems.

FAQ

What is the Zener voltage tolerance of MM5Z2V7?

The MM5Z2V7 has a Zener voltage tolerance of ±0.2 V around its nominal 2.7 V rating, meaning the actual measured V_Z falls between 2.5 V and 2.9 V when tested at I_ZT = 5 mA and T_A = 25 °C. This tight tolerance supports accurate voltage referencing in precision analog circuits without external trimming.

Can MM5Z2V7 be used in place of MM5Z2V4 in a 2.4 V reference design?

No - MM5Z2V7 is not a drop-in replacement for MM5Z2V4 because its nominal Zener voltage is 2.7 V (min 2.5 V), whereas MM5Z2V4 is rated at 2.4 V (min 2.2 V). Substituting MM5Z2V7 would raise the reference level by at least 0.1 V, potentially violating system-level voltage margin requirements in reset or bias circuits.

What is the maximum reverse leakage current for MM5Z2V7 at 1 V?

The MM5Z2V7 exhibits a maximum reverse leakage current (I_R) of 20 µA when biased at V_R = 1 V and T_A = 25 °C. This low leakage ensures minimal loading on high-impedance nodes such as comparator inputs or microcontroller wake-up detection circuits.

Does MM5Z2V7 require special handling for moisture sensitivity?

No - MM5Z2V7 is rated Moisture Sensitivity Level 1 (MSL-1), meaning it can be stored indefinitely at ambient conditions and subjected to standard reflow soldering profiles without prior baking or dry-pack packaging, simplifying manufacturing logistics and reducing process risk.

Is MM5Z2V7 compatible with lead-free reflow processes?

Yes - MM5Z2V7 features a matte tin (Sn) lead finish and is fully compatible with Pb-free reflow soldering per J-STD-020, supporting peak temperatures up to 260 °C. Its SOD-523F package is qualified for both SnPb and RoHS-compliant assembly environments.

MM5Z2V7 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):: 2.7 V

Tolerance:: ±7%

Power - Max:: 200 mW

Impedance (Max) (Zzt):: 100 Ohms

Current - Reverse Leakage @ Vr:: 20 µA @ 1 V

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

Operating Temperature:: -55°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-523F

MM5Z2V7 FAQ

1.How can I place an order for MM5Z2V7 through Aetrix?

Please submit a Request for Quotation (RFQ) for MM5Z2V7 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 MM5Z2V7 reliable?

The price and inventory of MM5Z2V7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z2V7 is usually 5 days.

3.What payment methods are accepted for MM5Z2V7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z2V7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MM5Z2V7?

MM5Z2V7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MM5Z2V7 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 MM5Z2V7?

For technical support, including MM5Z2V7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z2V7 requirements.

6.How does Aetrix verify that MM5Z2V7 is sourced from the original manufacturer or authorized distributors?

All MM5Z2V7 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 MM5Z2V7 meets industry standards.

7.What is the process for return or replacement of MM5Z2V7?

All MM5Z2V7 units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z2V7, 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 MM5Z2V7 part is unused and in its original packaging.

Return procedure for MM5Z2V7:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…