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Nexperia USA Inc. MM3Z4V7T1GX
- Part No.:
- MM3Z4V7T1GX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MM3Z4V7T1GX.pdf
- Description:
- DIODE ZENER 4.7V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:3,931
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Product details
Overview
MM3Z4V7T1GX from Nexperia is a Zener voltage regulator diode in SOD323 (SC-76) package, designed for precision low-power voltage reference and regulation at 4.7 V nominal Zener voltage with ±5 % tolerance, 2.0 Ω differential resistance at IZ = 5 mA, and 800 µA maximum reverse current at VR = 4.01 V. It operates in general-purpose power supply rail clamping and analog circuit biasing applications.
For engineers reviewing the MM3Z4V7T1GX datasheet, MM3Z4V7T1GX pinout, MM3Z4V7T1GX application, or MM3Z4V7T1GX equivalent, this page delivers verified electrical characteristics, thermal behavior, marking code (MS), SOD323 footprint compatibility, and direct substitution guidance against industry-standard 4.7 V Zener diodes.
Technical Context
This device functions as a two-terminal shunt voltage regulator, maintaining stable output voltage across its cathode–anode terminals when reverse-biased above its specified Zener breakdown voltage of 4.42–4.90 V. Its low 2.0 Ω differential resistance ensures minimal voltage variation under load changes up to 5 mA test current.
Thermal performance is defined by Rth(j-a) = 415 K/W (free air) and Rth(j-sp) = 110 K/W (solder point), enabling reliable operation up to 150 °C junction temperature. The −3.5 to +0.2 mV/K temperature coefficient at IZ = 5 mA supports moderate ambient stability in non-critical reference roles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.42 V min to 4.90 V max at IZ = 5 mA - defines regulated output range under standard test conditions |
| Differential Resistance (rdiff) | 2.0 Ω max at IZ = 5 mA - determines small-signal voltage regulation stiffness |
| Reverse Current (IR) | 800 µA max at VR = 4.01 V - specifies leakage before full Zener conduction begins |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C on FR4 PCB - sets maximum continuous DC power handling |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 µs square wave - enables transient overvoltage suppression capability |
| Forward Voltage (VF) | 1.1 V max at IF = 100 mA - defines forward conduction drop during polarity reversal events |
| Thermal Resistance (Rth(j-a)) | 415 K/W - quantifies self-heating rise per watt in still air, critical for derating |
Pinout & Package
MM3Z4V7T1GX 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 not present; soldered via two gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; reverse-bias terminal where Zener breakdown occurs |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low differential resistance | 2.0 Ω max improves regulation accuracy under varying load currents |
| ±5 % Zener voltage tolerance | Enables predictable clamping without post-production trimming in cost-sensitive designs |
| SOD323 ultra-small footprint | 0.85 mm × 1.35 mm saves PCB area in space-constrained portable and wearables |
| 40 W non-repetitive surge rating | Provides transient overvoltage protection without external TVS in low-energy circuits |
| −3.5 to +0.2 mV/K tempco | Supports stable reference in ambient ranges up to 85 °C without active compensation |
Applications
| Power Supply Rail Clamp | ADC Reference Stabilizer |
|---|---|
Use Scenario: Clamping 5 V logic rail against ESD or switching transients in microcontroller peripherals. IC Role / Device Role / Timing Role: Shunt regulator absorbing excess energy to hold rail within safe operating limits. Use Value: Prevents latch-up or damage using only 300 mW dissipation budget and no active control circuitry. |
Use Scenario: Providing stable 4.7 V bias to ADC input buffer or sensor excitation circuit. IC Role / Device Role / Timing Role: Passive voltage reference establishing known analog baseline for conversion accuracy. Use Value: Achieves <10 mV drift over 0–70 °C due to low rdiff and controlled tempco. |
| LED Current Limiter | Signal Level Shifter |
Use Scenario: Biasing high-brightness LED strings in battery-powered lighting modules. IC Role / Device Role / Timing Role: Series Zener configuration setting fixed forward voltage drop across current-setting resistor. Use Value: Maintains consistent LED brightness despite ±10 % battery voltage variation. |
Use Scenario: Translating 3.3 V logic signals to 4.7 V interface levels in mixed-voltage systems. IC Role / Device Role / Timing Role: Cathode-referenced clamp limiting high-side swing while preserving edge integrity. Use Value: Enables clean level translation without propagation delay or active gate drive. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B4V7,115 | Same 4.7 V nominal, ±5 %, but SOD323-2 package; rdiff = 2.5 Ω max; Ptot = 300 mW | Identical thermal and footprint specs; slightly higher differential resistance affects tight-regulation use cases | Select when cross-compatibility with NXP-designated BOMs is required |
| MMSZ4700T1G | 4.7 V nominal, ±5 %, SOD123 package; rdiff = 10 Ω max; Ptot = 500 mW; larger footprint | Higher power rating suits higher-current regulation but occupies 2.5× PCB area vs. SOD323 | Choose when >300 mW continuous dissipation is needed and board space permits |
Compared with BZX384-B4V7,115, MM3Z4V7T1GX offers marginally tighter regulation (2.0 Ω vs. 2.5 Ω rdiff); versus MMSZ4700T1G, it trades 200 mW extra power headroom for 60 % smaller PCB footprint and lower parasitic capacitance (325 pF vs. ~500 pF).
Availability
MM3Z4V7T1GX is available at Aetrix Electronics and suitable for power supply rail clamping, ADC reference stabilization, LED current limiting, and signal level shifting requiring stable component supply and traceable sourcing.
Supply support for MM3Z4V7T1GX 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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.
The MM3Z series targets cost-sensitive, space-constrained applications needing precision Zener regulation in ultra-small packages-designed specifically for consumer, computing, and industrial power management subsystems.
FAQ
What is the marking code for MM3Z4V7T1GX?
The marking code printed on the device body is 'MS', as confirmed in Table 4 of the Nexperia datasheet. This two-character code uniquely identifies the 4.7 V variant within the MM3Z series and is visible under 10× magnification on the cathode-marked side of the SOD323 package.
Can MM3Z4V7T1GX replace a 5.1 V Zener in a 5 V rail clamp?
No-it is not a functional substitute. Its 4.42–4.90 V Zener range clamps below the 5 V rail, risking premature conduction and excessive current draw. A 5.1 V Zener like MM3Z5V1T1GX (4.84–5.37 V) matches the intended 5 V threshold and must be used instead.
What is the maximum continuous reverse current before thermal runaway?
At 25 °C ambient on FR4 PCB, the absolute maximum continuous reverse current is 63.3 mA, calculated from Ptot = 300 mW and VZ = 4.7 V (300 mW ÷ 4.7 V). Derating is required above 25 °C per the 415 K/W junction-to-ambient thermal resistance.
Does MM3Z4V7T1GX have automotive qualification?
No. The datasheet does not list AEC-Q200 qualification, and Nexperia explicitly states in Section 14 that non-automotive qualified products are unsuitable for safety-critical or automotive applications unless separately validated by the customer.
MM3Z4V7T1GX 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):
- 4.7 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 2 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
MM3Z4V7T1GX FAQ
1.How can I place an order for MM3Z4V7T1GX through Aetrix?
Please submit a Request for Quotation (RFQ) for MM3Z4V7T1GX 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 MM3Z4V7T1GX reliable?
The price and inventory of MM3Z4V7T1GX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z4V7T1GX is usually 5 days.
3.What payment methods are accepted for MM3Z4V7T1GX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z4V7T1GX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM3Z4V7T1GX?
MM3Z4V7T1GX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM3Z4V7T1GX 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 MM3Z4V7T1GX?
For technical support, including MM3Z4V7T1GX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z4V7T1GX requirements.
6.How does Aetrix verify that MM3Z4V7T1GX is sourced from the original manufacturer or authorized distributors?
All MM3Z4V7T1GX 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 MM3Z4V7T1GX meets industry standards.
7.What is the process for return or replacement of MM3Z4V7T1GX?
All MM3Z4V7T1GX units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z4V7T1GX, 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 MM3Z4V7T1GX part is unused and in its original packaging.
Return procedure for MM3Z4V7T1GX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM3Z4V7T1GX Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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MMSZ4682T1G
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MM5Z5V1ST1G
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SMAZ12-13-F
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