onsemi NZ8F3V0MX2WT5G
- Part No.:
- NZ8F3V0MX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
NZ8F3V0MX2WT5G.pdf
- Description:
- DIODE ZENER 3V 250MW 2-X2DFNW
- Quantity:
- Payment:

- Shipping:

Inventory:7,550
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Product details
Overview
NZ8F3V0MX2WT5G from onsemi is a 250 mW, 3.0 V nominal Zener diode in X2DFNW2 (0402) wettable flank package, with ±10% voltage tolerance (2.75–3.25 V @ 5 mA), 100 Ω dynamic impedance, and 10 nA leakage at 1 V reverse bias. It provides precision voltage regulation and ESD protection in space-constrained portable electronics.
For engineers reviewing the NZ8F3V0MX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage accuracy, low-profile 0402 packaging with AOI-compatible wettable flanks, thermal derating behavior on FR-4, and AEC-Q101 qualification eligibility via SZ-prefix variants.
Technical Context
This device operates as a unidirectional voltage reference and clamp, conducting in reverse breakdown above its specified Zener voltage while maintaining stable regulation under defined test current (IZT = 5 mA). Its low body height (0.40 mm) and wettable flank geometry support automated optical inspection and high-density PCB assembly.
The NZ8F3V0MX2WT5G exhibits a typical temperature coefficient of +4 mV/°C over −55 °C to +150 °C, and its capacitance is 210 pF at 0 V bias and 1 MHz - critical for noise-sensitive signal line protection. Thermal resistance is 415 °C/W (FR-4 minimum pad) or 247 °C/W (150 mm² copper), defining power handling limits in real layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.75–3.25 V @ IZT = 5 mA - defines clamping threshold for overvoltage protection circuits |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C (FR-4 min pad) - sets maximum continuous DC power before thermal derating |
| Zener Impedance (ZZT) | 100 Ω max @ IZT = 5 mA - determines regulation stability under varying load current |
| Reverse Leakage (IR) | 10 nA max @ VR = 1 V - ensures minimal standby current in battery-powered systems |
| Capacitance (C) | 210 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency transient suppression capability |
| Forward Voltage (VF) | 0.9 V max @ IF = 10 mA - relevant for polarity-sensitive ESD clamp configurations |
| Junction Temp Range | −65 °C to +150 °C - supports operation in automotive under-hood and industrial environments |
Pinout & Package
Package: X2DFNW2 (Case 711BG), 0402 inch (1.00 × 0.60 × 0.37 mm), Pb-free, halogen-free, RoHS-compliant, with wettable flank side walls for AOI.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to regulated rail or signal line requiring clamping; polarity must match schematic symbol |
| 2 (Anode) | Zener anode terminal | Typically grounded or tied to lower potential; reverse-biased operation requires anode at lower voltage than cathode |
Key Features
| Feature | Design Value |
|---|---|
| Wettable flank package | Enables reliable automated optical inspection (AOI) of solder joints on 0402 footprint without X-ray |
| Low profile (0.40 mm height) | Minimizes board stack height in ultra-thin mobile and wearable devices |
| AEC-Q101 qualification path | SZ-prefix variants (e.g., SZNZ8F3V0MX2WT5G) meet automotive stress testing requirements |
| Pb-free / Halogen-free | Complies with RoHS Directive 2011/65/EU and JEDEC JS709E material standards |
| Standard tolerance series | ±10% Zener voltage tolerance enables cost-optimized designs where tight regulation is not required |
Applications
| USB Data Line Protection | Automotive Sensor Reference Clamp |
|---|---|
Use Scenario: Protecting USB 2.0 D+/D− lines from ESD transients and supply rail overshoot in smartphones and accessories. IC Role / Device Role / Timing Role: Unidirectional Zener clamp placed between data line and ground, triggered during >3.3 V excursions. Use Value: 210 pF capacitance minimally loads 480 Mbps signaling; 250 mW rating absorbs IEC 61000-4-2 Level 4 (±15 kV air) pulses with low clamping voltage. |
Use Scenario: Stabilizing reference voltage for analog sensor outputs (e.g., pressure, temperature) in engine control units. IC Role / Device Role / Timing Role: Shunt regulator providing stable 3.0 V bias to sensor bridge or ADC input stage. Use Value: −65 °C to +150 °C operating range matches under-hood thermal profiles; ±10% tolerance accommodates calibration in production. |
| Portable Device Power Rail Clamp | Industrial IoT Node Voltage Supervisor |
Use Scenario: Preventing overvoltage damage to 3.3 V LDO inputs during hot-swap or battery insertion events in handheld medical devices. IC Role / Device Role / Timing Role: Reverse-biased Zener connected between input rail and ground, clamping surges above 3.25 V. Use Value: 100 Ω Zener impedance ensures fast response to <100 ns transients; 0.40 mm height fits beneath compact battery connectors. |
Use Scenario: Monitoring 3.3 V system rail integrity in edge-node gateways using microcontroller ADC with internal reference. IC Role / Device Role / Timing Role: Precision shunt element feeding known-voltage divider into MCU's analog input channel. Use Value: 10 nA leakage at 1 V avoids loading sensitive ADC input; 2.75–3.25 V range aligns with 3.3 V ±5% supply spec for deterministic fault detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B3V0,115 (Nexperia) | Same 3.0 V nominal, ±5% tolerance; 300 mW rating; SOD323 package (1.7 × 1.3 × 0.9 mm) | Larger footprint and higher profile limit use in ultra-dense layouts; no wettable flank | Select when higher power margin is needed and AOI is not required |
| MMBZ5226BS-7-F (Diodes Inc.) | 3.0 V nominal, ±5% tolerance; 200 mW; SOT-323 package (2.2 × 1.35 × 0.95 mm); 100 Ω ZZT | Non-wettable flank; larger size; lacks AEC-Q101 path even in automotive-grade variants | Choose for cost-sensitive consumer designs where 0402 footprint isn't mandatory |
Compared with BZX384-B3V0,115 and MMBZ5226BS-7-F, the NZ8F3V0MX2WT5G offers superior board-area efficiency and AOI compatibility in 0402, but trades off absolute voltage tolerance and maximum power for miniaturization - making it optimal for next-gen portable and automotive modules where space and process yield are primary constraints.
Availability
NZ8F3V0MX2WT5G is available at Aetrix Electronics and suitable for USB interface protection, automotive sensor reference clamping, and portable device power rail supervision requiring stable component supply across high-mix, low-volume production runs.
Supply support for NZ8F3V0MX2WT5G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The NZ8F Series targets high-density, reliability-critical applications requiring miniature, AOI-friendly Zener diodes - designed specifically for space-constrained portable electronics and automotive subsystems needing robust voltage regulation in 0402 form factor.
FAQ
What is the Zener voltage tolerance of NZ8F3V0MX2WT5G?
The NZ8F3V0MX2WT5G has a nominal Zener voltage of 3.0 V with a tolerance of ±10%, resulting in a guaranteed range of 2.75 V to 3.25 V at test current IZT = 5 mA. This standard tolerance series balances cost and performance for non-critical regulation tasks where tighter control is unnecessary.
Is NZ8F3V0MX2WT5G qualified for automotive use?
The base NZ8F3V0MX2WT5G is not AEC-Q101 qualified; however, its automotive-grade variant SZNZ8F3V0MX2WT5G carries the SZ prefix and meets AEC-Q101 stress testing requirements with PPAP capability. Both share identical electrical specs and X2DFNW2 packaging.
What is the thermal resistance of NZ8F3V0MX2WT5G on a standard PCB?
NZ8F3V0MX2WT5G has a junction-to-ambient thermal resistance (RJA) of 415 °C/W when mounted on an FR-4 board with minimum pad size and 1 oz. copper, and 247 °C/W with a 150 mm² copper area. These values define safe operating power limits under ambient conditions.
Does NZ8F3V0MX2WT5G support automated optical inspection (AOI)?
Yes - the NZ8F3V0MX2WT5G uses the X2DFNW2 package with wettable flank side walls, enabling reliable solder joint inspection using standard AOI systems without requiring X-ray. This feature improves first-pass yield in high-volume SMT lines.
What is the maximum reverse leakage current for NZ8F3V0MX2WT5G?
The maximum reverse leakage current (IR) for NZ8F3V0MX2WT5G is 10 nA at VR = 1 V and TA = 25 °C. This ultra-low leakage preserves battery life in always-on portable and IoT applications where standby current is tightly budgeted.
NZ8F3V0MX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3 V
- Tolerance:
- ±8.33%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 2-X2DFNW (1x0.6)
NZ8F3V0MX2WT5G FAQ
1.How can I place an order for NZ8F3V0MX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ8F3V0MX2WT5G 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 NZ8F3V0MX2WT5G reliable?
The price and inventory of NZ8F3V0MX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ8F3V0MX2WT5G is usually 5 days.
3.What payment methods are accepted for NZ8F3V0MX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ8F3V0MX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ8F3V0MX2WT5G?
NZ8F3V0MX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ8F3V0MX2WT5G 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 NZ8F3V0MX2WT5G?
For technical support, including NZ8F3V0MX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ8F3V0MX2WT5G requirements.
6.How does Aetrix verify that NZ8F3V0MX2WT5G is sourced from the original manufacturer or authorized distributors?
All NZ8F3V0MX2WT5G 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 NZ8F3V0MX2WT5G meets industry standards.
7.What is the process for return or replacement of NZ8F3V0MX2WT5G?
All NZ8F3V0MX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ8F3V0MX2WT5G, 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 NZ8F3V0MX2WT5G part is unused and in its original packaging.
Return procedure for NZ8F3V0MX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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