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

Nexperia USA Inc. MM3Z7V5T1GX

Name: MM3Z7V5T1GX
Brand: Nexperia USA Inc.
SKU: MM3Z7V5T1GX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MM3Z7V5T1GX

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SC-76, SOD-323

Datasheet:: MM3Z7V5T1GX.pdf

Description:: DIODE ZENER 7.5V 300MW SOD323

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Inventory:2,870

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Product details

Overview

MM3Z7V5T1GX from Nexperia is a 7.5 V ±5 % tolerance Zener diode in SOD323 (SC-76) package, rated for 300 mW total power dissipation and 40 W non-repetitive peak reverse power, used for precision voltage regulation and reference in low-power analog circuits, including sensor biasing and ADC reference stabilization.

For engineers reviewing the MM3Z7V5T1GX datasheet, MM3Z7V5T1GX pinout, MM3Z7V5T1GX application, or MM3Z7V5T1GX equivalent, key selection criteria include its 7.06–7.84 V nominal Zener voltage range at I_Z = 5 mA, 0.5 Ω typical differential resistance, +2.5 mV/K temperature coefficient, and SOD323 footprint compatibility with space-constrained PCB layouts.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable voltage across load variations, with specified performance at 5 mA test current and 25 °C junction temperature. Its low 0.5 Ω differential resistance ensures minimal voltage shift under dynamic current loads.

The device exhibits a positive temperature coefficient of +2.5 mV/K at 5 mA, enabling predictable thermal drift compensation in reference designs. Thermal resistance from junction to ambient is 415 K/W on standard FR4 PCB, limiting continuous power handling without derating.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	7.06 V min to 7.84 V max at I_Z = 5 mA - defines usable regulation window for 7.5 V nominal reference
Differential Resistance (r_diff)	0.5 Ω max - ensures <1 mV output change per 2 mA load current variation
Temperature Coefficient (S_Z)	+2.5 mV/K at I_Z = 5 mA - enables predictable +12.5 mV drift over 5 K ambient rise
Total Power Dissipation (P_tot)	300 mW at T_amb = 25 °C - sets maximum continuous DC power on standard FR4 PCB
Non-repetitive Peak Reverse Power (P_ZSM)	40 W at t_p = 100 µs - supports transient surge suppression in ESD-coupled signal paths
Reverse Current (I_R)	≤60 µA at V_R = 6 V - confirms sharp knee and low leakage below regulation threshold
Forward Voltage (V_F)	1.1 V max at I_F = 100 mA - defines forward conduction loss during polarity-reversal fault conditions

Pinout & Package

SOD323 (SC-76) surface-mount plastic package: 2-terminal, 1.35 mm × 0.85 mm body, 0.45 mm height, cathode marked by bar on top surface.

Pin/Terminal	Circuit Role	Design Meaning
1 (K)	Cathode	Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation
2 (A)	Anode	Connected to ground or lower-potential rail; reverse-biased configuration enables Zener operation

Key Features

Feature	Design Value
±5 % Zener voltage tolerance	Enables direct replacement in 7.5 V reference designs without recalibration or resistor trimming
0.5 Ω differential resistance	Reduces output voltage deviation to <0.5 mV under ±1 mA load transients
+2.5 mV/K temperature coefficient	Allows predictable thermal drift modeling for compensated reference circuits up to 85 °C ambient
300 mW power rating on FR4	Supports continuous operation in 5–10 mA bias applications without heatsinking
SOD323 footprint	Enables high-density placement in portable and IoT PCBs with 0.65 mm pad pitch

Applications

ADC Reference Stabilization

Sensor Biasing

Use Scenario: Providing stable 7.5 V reference for 12-bit SAR ADC in battery-powered environmental monitor.

IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference, maintaining constant voltage across ADC REF+ pin despite supply ripple.

Use Value: 0.5 Ω r_diff limits reference error to <0.5 LSB under 1 mA load variation from internal ADC sampling current.

Use Scenario: Biasing a silicon photodiode in transimpedance amplifier front-end for smoke detector.

IC Role / Device Role / Timing Role: Supplies precise reverse bias voltage to photodiode cathode, setting depletion region width and responsivity.

Use Value: ±5 % V_Z tolerance ensures consistent photocurrent gain across production units without per-unit calibration.

Power Supply Clamp

Logic-Level Translation

Use Scenario: Clamping 9 V rail to 7.5 V in automotive body control module during load-dump transients.

IC Role / Device Role / Timing Role: Shunt limiter absorbing surge energy via 40 W P_ZSM capability during 100 µs spikes.

Use Value: 40 W non-repetitive rating handles ISO 7637-2 Pulse 5a surges without degradation when paired with series impedance.

Use Scenario: Level-shifting 3.3 V microcontroller GPIO to interface with 7.5 V analog multiplexer.

IC Role / Device Role / Timing Role: Cathode tied to 7.5 V rail, anode to GPIO; conducts only during low-state to clamp high-side logic swing.

Use Value: 1.1 V V_F ensures clean 0.0 V low-level output while blocking 7.5 V when GPIO is high.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX384-B7V5	Same 7.5 V ±5 %, but SOD323 package with 250 mW P_tot and 1.0 Ω r_diff	Lower power rating reduces margin in sustained 5 mA bias; higher r_diff increases load regulation error	Select when cost sensitivity outweighs 50 mW power headroom and 0.5 Ω r_diff advantage
MMSZ5236B	7.5 V ±5 % in SOD-123, 500 mW P_tot, but 10 Ω r_diff and −2 mV/K S_Z	Larger package eases hand-soldering; negative tempco conflicts with thermal compensation schemes	Prefer for manual assembly or where thermal drift direction must oppose other circuit elements

Compared with BZX384-B7V5 and MMSZ5236B, MM3Z7V5T1GX delivers superior load regulation (0.5 Ω vs. ≥1.0 Ω), tighter thermal predictability (+2.5 mV/K vs. −2 mV/K), and optimal SOD323 density-making it ideal for automated, high-precision, space-constrained designs.

Availability

MM3Z7V5T1GX is available at Aetrix Electronics and suitable for ADC reference stabilization, sensor biasing, power supply clamping, and logic-level translation requiring stable component supply across industrial, medical, and IoT production programs.

Supply support for MM3Z7V5T1GX 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 leading semiconductor manufacturer specializing in high-performance, reliable discrete and logic devices, with global R&D and manufacturing infrastructure focused on efficiency and scalability.

The MM3Z series targets general-purpose voltage regulation in compact, cost-sensitive applications, emphasizing tight tolerance, low dynamic impedance, and robust SMD packaging for high-volume consumer and industrial electronics.

FAQ

What is the maximum continuous Zener current for MM3Z7V5T1GX at 70 °C ambient?

At 70 °C ambient, derating applies: P_tot = 300 mW × (1 − (70 − 25)/125) = 192 mW. With V_Z ≈ 7.5 V, max continuous I_Z = 192 mW / 7.5 V = 25.6 mA. This assumes no additional board-level thermal enhancement beyond standard FR4 layout.

Can MM3Z7V5T1GX be used in series for higher voltage references?

Yes-two MM3Z7V5T1GX diodes in series yield ~15 V with doubled differential resistance (1.0 Ω) and additive temperature coefficients (+5.0 mV/K). However, mismatch in V_Z tolerance (±5 % each) results in ±7.1 % combined tolerance, requiring post-assembly trimming for precision use.

How does the 40 W non-repetitive peak power rating translate to real-world surge handling?

The 40 W rating applies to 100 µs square-wave pulses at 25 °C. In practice, it supports single-event transients like ESD (IEC 61000-4-2) or inductive kickback when series impedance limits peak current to ≤5.3 A (40 W / 7.5 V), provided thermal mass prevents junction overheating.

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

Yes-the SOD323 outline complies with IPC-7351B, and Nexperia specifies JEDEC J-STD-020-compliant reflow profiles. Peak temperature must not exceed 260 °C for ≤30 seconds, with ramp rates ≤3 °C/s pre-peak, matching standard Pb-free processes for FR4 boards.

MM3Z7V5T1GX 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):: 7.5 V

Tolerance:: ±5%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 10 Ohms

Current - Reverse Leakage @ Vr:: 500 nA @ 4 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

MM3Z7V5T1GX FAQ

1.How can I place an order for MM3Z7V5T1GX through Aetrix?

Please submit a Request for Quotation (RFQ) for MM3Z7V5T1GX 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 MM3Z7V5T1GX reliable?

The price and inventory of MM3Z7V5T1GX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z7V5T1GX is usually 5 days.

3.What payment methods are accepted for MM3Z7V5T1GX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z7V5T1GX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MM3Z7V5T1GX?

MM3Z7V5T1GX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MM3Z7V5T1GX 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 MM3Z7V5T1GX?

For technical support, including MM3Z7V5T1GX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z7V5T1GX requirements.

6.How does Aetrix verify that MM3Z7V5T1GX is sourced from the original manufacturer or authorized distributors?

All MM3Z7V5T1GX 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 MM3Z7V5T1GX meets industry standards.

7.What is the process for return or replacement of MM3Z7V5T1GX?

All MM3Z7V5T1GX units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z7V5T1GX, 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 MM3Z7V5T1GX part is unused and in its original packaging.

Return procedure for MM3Z7V5T1GX:

1.Submit a request within 90 days.

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

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