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Nexperia USA Inc. MM3Z30VT1GX
- Part No.:
- MM3Z30VT1GX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MM3Z30VT1GX.pdf
- Description:
- DIODE ZENER 30V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,970
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Product details
Overview
MM3Z30VT1GX from Nexperia is a surface-mount Zener diode in SOD323 (SC-76) package, designed for precision voltage regulation at 30 V nominal with ±5 % tolerance, 21.0–32.0 V working range, 0.05 Ω differential resistance at IZ = 2 mA, and 300 mW total power dissipation. It serves as a stable reference or clamp in low-power analog signal conditioning circuits.
For engineers reviewing the MM3Z30VT1GX datasheet, MM3Z30VT1GX pinout, MM3Z30VT1GX application, or MM3Z30VT1GX equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (Rth(j-a) = 415 K/W), non-repetitive surge capability (40 W @ 100 µs), reverse leakage (<80 µA at 0.5 mA), and SOD323 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable reference voltage across its cathode-anode terminals under controlled current conditions. Its low differential resistance (0.05 Ω) ensures minimal voltage deviation over load current changes, while the negative temperature coefficient (24.4–29.4 mV/K) enables predictable drift behavior in ambient temperature variations.
The device is rated for junction temperatures up to 150 °C and features a thermal resistance of 110 K/W from junction to solder point, supporting reliable operation on FR4 PCBs with standard single-sided copper. Its 40 W non-repetitive peak reverse power rating allows brief transient suppression without permanent degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 28.0–32.0 V at IZ = 2 mA - defines precise clamping threshold for 30 V nominal regulation |
| Differential Resistance (rdiff) | 0.05 Ω - ensures <±30 mV output shift per 600 mA change in Zener current |
| Reverse Current (IR) | <80 µA at VR = 22.5 V - guarantees low standby leakage in battery-powered bias networks |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Power (PZSM) | 40 W @ 100 µs square wave - supports ESD/transient suppression without derating |
| Thermal Resistance (Rth(j-a)) | 415 K/W - limits junction temperature rise to ~125 °C at full 300 mW on unmodified PCB |
| Capacitance (Cd) | 50 pF at f = 1 MHz, VR = 0 V - maintains signal integrity in <100 MHz analog feedback paths |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package with 2 leads, 1.35 mm × 0.85 mm body size, 0.45 mm lead pitch, and cathode marked by a bar on the top surface.
| 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 circuit ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low differential resistance | 0.05 Ω enables tight voltage regulation stability under varying load currents |
| Wide Zener voltage range | 2.4–75 V series coverage supports single-family sourcing across diverse supply rails |
| Small-footprint SOD323 package | 1.35 × 0.85 mm outline fits high-density layouts without sacrificing thermal performance |
| Controlled temperature coefficient | +24.4 to +29.4 mV/K allows predictable drift compensation in precision references |
| High surge robustness | 40 W non-repetitive peak power withstands IEC 61000-4-5 level 3 transients |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing stable 30 V reference for ADC voltage dividers in industrial sensor front-ends. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference, absorbing excess current to hold node voltage constant. Use Value: Enables 12-bit measurement accuracy by limiting reference drift to <±0.1% over 0–70 °C ambient range. |
Use Scenario: Protecting microcontroller GPIO pins from 36 V surges in automotive body control modules. IC Role / Device Role / Timing Role: Clamping diode diverting transient energy to ground before IC input structures exceed breakdown limits. Use Value: Limits pin voltage to ≤32 V during 100 µs transients, preventing latch-up and permanent gate oxide damage. |
| Current Source Bias | Signal Level Shifting |
|
Use Scenario: Setting bias current for op-amp input stages in portable medical instrumentation. IC Role / Device Role / Timing Role: Zener-based two-resistor current source delivering stable 2 mA to high-impedance amplifier inputs. Use Value: Maintains <±2% current variation across 10–40 °C, ensuring consistent amplifier offset and noise performance. |
Use Scenario: Translating 0–5 V logic signals to 0–30 V levels for driving external analog multiplexers. IC Role / Device Role / Timing Role: Clamping diode referenced to 30 V rail, limiting signal swing to safe operating range. Use Value: Prevents signal overshoot beyond 32 V, eliminating risk of damaging downstream CMOS switches rated for 33 V max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B30,115 | Same 30 V nominal, ±5 % tolerance, but SOD323 package with higher rdiff (10 Ω) and lower PZSM (4 W) | Limited to low-current reference use; unsuitable for transient clamping or >1 mA dynamic loads | Select when cost sensitivity outweighs regulation precision and surge robustness requirements |
| MMBZ5260BLT1G | 30 V nominal, ±5 %, but SOT-23 package (larger footprint), higher Ptot (350 mW), and rdiff = 35 Ω | Better thermal margin for continuous operation, but poorer regulation stability and incompatible footprint | Choose when board layout allows SOT-23 and long-term power dissipation exceeds 300 mW |
Compared with BZX384-B30,115 and MMBZ5260BLT1G, MM3Z30VT1GX delivers superior voltage regulation fidelity (0.05 Ω vs. ≥10 Ω rdiff) and transient resilience (40 W vs. ≤4 W surge), making it optimal for precision analog and mixed-signal applications where stability and robustness are critical.
Availability
MM3Z30VT1GX is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, and automotive body electronics requiring stable component supply with guaranteed long-term continuity.
Supply support for MM3Z30VT1GX 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, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
The MM3Z series targets general-purpose voltage regulation in space-constrained applications, emphasizing tight tolerance, low dynamic impedance, and robust surge immunity in miniature SMD packages.
FAQ
What is the maximum continuous reverse current this Zener can handle at 30 V?
The MM3Z30VT1GX is rated for 300 mW total power dissipation at 25 °C ambient. At its nominal 30 V Zener voltage, this corresponds to a maximum continuous reverse current of 10 mA (300 mW ÷ 30 V). Derating is required above 25 °C per the 415 K/W thermal resistance specification.
Does this part have automotive qualification?
No, the MM3Z30VT1GX is not AEC-Q200 qualified. Nexperia explicitly states in its legal disclaimers that unless otherwise specified, MM3Z series devices are non-automotive qualified and not tested to automotive reliability or environmental stress standards.
How does the cathode marking appear on the SOD323 package?
The cathode is indicated by a visible bar marking on the top surface of the SOD323 package, aligned with Pin 1. This matches the simplified outline in Table 2 of the datasheet and is consistent across all MM3Z series variants including MM3Z30VT1GX.
Can this Zener be used in AC signal clipping applications?
Yes - its symmetric forward voltage (~1.1 V at 100 mA) and sharp reverse breakdown enable bidirectional clipping. However, the 300 mW power limit restricts use to low-energy signals; average power must remain below derated Ptot to avoid thermal runaway.
MM3Z30VT1GX 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):
- 30 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 21 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
MM3Z30VT1GX FAQ
1.How can I place an order for MM3Z30VT1GX through Aetrix?
Please submit a Request for Quotation (RFQ) for MM3Z30VT1GX 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 MM3Z30VT1GX reliable?
The price and inventory of MM3Z30VT1GX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z30VT1GX is usually 5 days.
3.What payment methods are accepted for MM3Z30VT1GX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z30VT1GX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM3Z30VT1GX?
MM3Z30VT1GX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM3Z30VT1GX 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 MM3Z30VT1GX?
For technical support, including MM3Z30VT1GX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z30VT1GX requirements.
6.How does Aetrix verify that MM3Z30VT1GX is sourced from the original manufacturer or authorized distributors?
All MM3Z30VT1GX 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 MM3Z30VT1GX meets industry standards.
7.What is the process for return or replacement of MM3Z30VT1GX?
All MM3Z30VT1GX units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z30VT1GX, 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 MM3Z30VT1GX part is unused and in its original packaging.
Return procedure for MM3Z30VT1GX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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