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

Nexperia USA Inc. MM3Z2V7T1GX

Name: MM3Z2V7T1GX
Brand: Nexperia USA Inc.
SKU: MM3Z2V7T1GX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MM3Z2V7T1GX

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SC-76, SOD-323

Datasheet:: MM3Z2V7T1GX.pdf

Description:: DIODE ZENER 2.7V 300MW SOD323

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Product details

Overview

MM3Z2V7T1GX from Nexperia is a 2.7 V ±5 % Zener voltage regulator diode in SOD323 (SC-76) package, rated for 300 mW total power dissipation and 40 W non-repetitive peak reverse power, with 20 Ω typical differential resistance at I_Z = 5 mA and −3.5 to 0 mV/K temperature coefficient - used for precision low-voltage reference and overvoltage clamping in portable power rails.

For engineers reviewing the MM3Z2V7T1GX datasheet, MM3Z2V7T1GX pinout, MM3Z2V7T1GX application, or MM3Z2V7T1GX equivalent, this page delivers verified Zener parameters, cathode/anode terminal mapping, thermal resistance data (R_th(j-a) = 415 K/W), forward voltage behavior (V_F ≤ 1.1 V @ 100 mA), and real-world regulation use cases in space-constrained consumer and industrial PCBs.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable 2.7 V across its terminals under regulated current conditions (I_Z = 0.5–5 mA), with low dynamic impedance enabling tight voltage tolerance in feedback loops and protection circuits. Its SOD323 footprint supports high-density routing on FR4 PCBs with single-sided copper.

Thermal performance is defined by junction-to-ambient resistance of 415 K/W (free air) and junction-to-solder-point resistance of 110 K/W, allowing reliable operation up to 150 °C junction temperature. Reverse leakage remains ≤100 µA at 1 V and ≤1000 µA at 2.5 V, ensuring minimal standby current draw.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	2.50 V to 2.90 V at I_Z = 5 mA - defines precise clamping threshold for 2.7 V nominal rail regulation
Differential Resistance (r_diff)	20 Ω max at I_Z = 5 mA - ensures minimal voltage shift under load variation in reference circuits
Forward Voltage (V_F)	≤ 1.1 V at I_F = 100 mA - enables low-loss anode-side biasing in series regulator configurations
Total Power Dissipation (P_tot)	300 mW at T_amb = 25 °C - sets maximum continuous DC power handling on standard FR4 PCB
Non-repetitive Peak Power (P_ZSM)	40 W for t_p = 100 µs square wave - supports transient surge suppression in ESD-coupled signal lines
Temperature Coefficient (S_Z)	−3.5 to 0 mV/K - provides predictable V_Z drift over −55 °C to +150 °C ambient range
Reverse Leakage (I_R)	≤ 1000 µA at V_R = 2.5 V - guarantees low quiescent current in always-on monitoring paths

Pinout & Package

MM3Z2V7T1GX uses the SOD323 (SC-76) surface-mount plastic package: 1.35 mm × 0.85 mm body, 0.45 mm height, cathode marked by bar on top surface. Thermal pad is not present; soldering follows reflow footprint per Figure 12.

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode (K)	Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs
2	Anode (A)	Connected to ground or lower-potential rail; establishes reference polarity for clamping direction

Key Features

Feature	Design Value
Low-profile SMD package	SOD323 footprint (1.35 × 0.85 mm) enables placement in <1.0 mm pitch layouts for wearables and IoT sensors
Stable low-voltage reference	2.7 V ±5 % tolerance with 20 Ω r_diff supports ±15 mV regulation accuracy in 3.3 V LDO feedback networks
High surge resilience	40 W non-repetitive peak power rating allows direct integration into USB port ESD protection chains without external TVS
Controlled thermal response	R_th(j-sp) = 110 K/W to cathode solder point enables predictable derating in thermally isolated PCB zones

Applications

USB-C Port Voltage Clamp

Li-ion Battery Cell Monitor Reference

Use Scenario: Clamps VBUS line during hot-plug transients to prevent overvoltage damage to USB controller ICs.

IC Role / Device Role / Timing Role: Zener acts as shunt regulator between VBUS and GND, conducting only when voltage exceeds 2.7 V threshold.

Use Value: Limits peak excursion to ≤2.9 V with <20 Ω dynamic impedance, reducing need for discrete TVS and saving board area.

Use Scenario: Provides stable 2.7 V reference for ADC input scaling in multi-cell battery fuel gauges.

IC Role / Device Role / Timing Role: Supplies precision bias to op-amp buffer driving 12-bit SAR ADC, minimizing gain error from supply drift.

Use Value: −3.5 to 0 mV/K tempco ensures <±0.5 % full-scale error over −20 °C to +70 °C operating range.

IoT Sensor Node Power Rail Stabilizer

Industrial PLC Digital Input Protection

Use Scenario: Regulates 2.8 V auxiliary rail powering MEMS accelerometers and BLE radio modules.

IC Role / Device Role / Timing Role: Shunt regulator maintains constant voltage despite 10–100 µA load variation across sleep/active states.

Use Value: 100 µA max leakage at 2.5 V ensures <1 µW standby power penalty in ultra-low-power wake-up circuits.

Use Scenario: Protects 24 V digital input optocoupler front-end from induced surges on factory floor wiring.

IC Role / Device Role / Timing Role: Paired with series resistor to limit current into opto-LED during 40 W transient events.

Use Value: 40 W P_ZSM rating absorbs IEC 61000-4-5 Level 3 surges without degradation or parameter shift.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX384-B2V7	Same 2.7 V ±5 %, but SOD323 package with 250 mW P_tot and 25 Ω r_diff	Lower power margin reduces headroom in sustained 5 mA bias conditions	Prefer for cost-sensitive designs where 50 mW derating is acceptable
MMSZ4678T1G	2.7 V ±5 %, SOD123 package (2.7 × 1.6 mm), 500 mW P_tot, 30 Ω r_diff	Larger footprint increases board area by 3.2× but improves thermal dissipation	Choose when higher continuous power or manual rework accessibility is required

Compared with BZX384-B2V7 and MMSZ4678T1G, MM3Z2V7T1GX offers optimal balance of miniaturization (SOD323), 300 mW power capability, and lowest differential resistance (20 Ω), making it preferred for high-accuracy, space-constrained regulation where thermal constraints permit 415 K/W junction-to-air resistance.

Availability

MM3Z2V7T1GX is available at Aetrix Electronics and suitable for USB-C interface protection, Li-ion battery monitoring, IoT sensor power stabilization, and industrial digital input conditioning requiring stable component supply and traceable sourcing.

Supply support for MM3Z2V7T1GX 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

Nexperia is a global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency, miniaturization, and robustness for mass-market electronics.

The MM3Z series targets general-purpose voltage regulation in compact, cost-sensitive applications - designed specifically for SOD323 placement density, low-leakage stability, and repeatable Zener characteristics across automotive-grade temperature ranges.

FAQ

What is the maximum continuous reverse current for stable Zener operation?

The MM3Z2V7T1GX is specified for stable regulation at I_Z = 5 mA (typical operating point), with absolute maximum reverse current limited to 200 mA per limiting values table. Sustained operation above 10 mA requires thermal derating based on R_th(j-a) = 415 K/W and ambient temperature.

How does the marking code 'X9' relate to the electrical specification?

'X9' is the manufacturer-specific top-side marking for MM3Z2V7T1GX, directly corresponding to the 2.7 V nominal Zener voltage and ±5 % tolerance per Table 8. It is not a generic code - all X9-marked units meet the full electrical characteristics in Tables 7 and 8, including 20 Ω r_diff and −3.5 to 0 mV/K temperature coefficient.

Can MM3Z2V7T1GX replace a 3.3 V Zener in a 3.3 V LDO feedback network?

No - MM3Z2V7T1GX is rated for 2.7 V nominal Zener voltage (2.5–2.9 V range), not 3.3 V. Substituting it in a 3.3 V feedback path would cause incorrect regulation, potentially leading to overvoltage on downstream circuitry. Use MM3Z3V3T1G (3.3 V variant) instead.

Is the SOD323 package compatible with standard reflow profiles for lead-free assembly?

Yes - Nexperia specifies compatibility with IPC/JEDEC J-STD-020D reflow profiles. The SOD323 outline in Figure 11 and solder land pattern in Figure 12 confirm suitability for peak temperatures up to 260 °C, with recommended preheat ramp rate ≤3 °C/s and time above liquidus of 60–150 s.

MM3Z2V7T1GX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: MM3Z

Package/Case:: SC-76, SOD-323

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 2.7 V

Tolerance:: ±5%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 100 Ohms

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

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 100 mA

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-323

MM3Z2V7T1GX FAQ

1.How can I place an order for MM3Z2V7T1GX through Aetrix?

Please submit a Request for Quotation (RFQ) for MM3Z2V7T1GX 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 MM3Z2V7T1GX reliable?

The price and inventory of MM3Z2V7T1GX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z2V7T1GX is usually 5 days.

3.What payment methods are accepted for MM3Z2V7T1GX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z2V7T1GX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MM3Z2V7T1GX?

MM3Z2V7T1GX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MM3Z2V7T1GX 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 MM3Z2V7T1GX?

For technical support, including MM3Z2V7T1GX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z2V7T1GX requirements.

6.How does Aetrix verify that MM3Z2V7T1GX is sourced from the original manufacturer or authorized distributors?

All MM3Z2V7T1GX 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 MM3Z2V7T1GX meets industry standards.

7.What is the process for return or replacement of MM3Z2V7T1GX?

All MM3Z2V7T1GX units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z2V7T1GX, 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 MM3Z2V7T1GX part is unused and in its original packaging.

Return procedure for MM3Z2V7T1GX:

1.Submit a request within 90 days.

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

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