onsemi NZ8F3V3MX2WT5G
- Part No.:
- NZ8F3V3MX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
NZ8F3V3MX2WT5G.pdf
- Description:
- DIODE ZENER 3.3V 250MW 2-X2DFNW
- Quantity:
- Payment:

- Shipping:

Inventory:5,880
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Product details
Overview
NZ8F3V3MX2WT5G from onsemi is a 3.3 V ±7.6% standard-tolerance Zener diode in X2DFNW2 (0402) wettable flank package, rated for 250 mW dissipation at 25 °C on FR-4 board with 1 oz. Cu, 0.40 mm body height, and 210 pF capacitance at 0 V/1 MHz - used for precision voltage clamping in space-constrained portable electronics.
For engineers reviewing the NZ8F3V3MX2WT5G datasheet, pinout, applications, or equivalent options, key selection factors include its 3.05–3.55 V Zener range at 5 mA, 100 Ω dynamic impedance, 10 µA leakage at 1 V reverse bias, AEC-Q101 qualification eligibility (with SZ prefix), and AOI-compatible wettable flank geometry.
Technical Context
This unidirectional Zener diode operates in reverse breakdown to maintain stable reference voltage under varying load and temperature conditions. Its low-profile X2DFNW2 package enables high-density PCB layouts while supporting automated optical inspection via solderable side flanks.
The device exhibits a nominal temperature coefficient of +4 mV/°C near 3.3 V and delivers ≤0.9 V forward voltage at 10 mA. It is specified for junction temperatures from −65 °C to +150 °C and supports non-repetitive peak reverse power up to 40 W for transient suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.05–3.55 V at IZT = 5 mA - defines clamping threshold for overvoltage protection circuits |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C on FR-4 (1 oz. Cu, min pad) - sets continuous thermal limit for compact designs |
| Zener Impedance (ZZT) | 100 Ω max @ IZT = 5 mA - determines regulation stability under current variation |
| Reverse Leakage (IR) | 10 µA 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 noise filtering and signal integrity |
| Forward Voltage (VF) | ≤0.9 V @ IF = 10 mA - enables use as low-drop rectifier or ESD clamp in bidirectional paths |
| Package | X2DFNW2 (0402, 1.00 × 0.60 × 0.37 mm) with wettable flanks - supports AOI and high-yield reflow in fine-pitch assembly |
Pinout & Package
X2DFNW2 surface-mount package with 2-terminal configuration: ultra-low profile (0.40 mm height), industry-standard 0402 footprint (1.00 mm × 0.60 mm), and solderable side flanks for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked side) | Cathode | Connected to regulated output node; accepts reverse bias for Zener conduction |
| 2 | Anode | Ground or reference return path; completes clamping circuit during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Wettable flank geometry | Enables 100% automated optical inspection of solder joints without X-ray |
| AEC-Q101 qualification path | SZ-prefix variant available for automotive control units requiring PPAP documentation |
| Pb-Free, Halogen-Free/BFR-Free | Meets RoHS Directive 2011/65/EU and JEDEC JS709C material compliance |
| Low body height (0.40 mm) | Reduces mechanical interference in stacked or shielded mobile PCB assemblies |
| Standard tolerance series | ±7.6% VZ tolerance (3.05–3.55 V) balances cost and precision for non-critical references |
Applications
| Smartphone Power Rail Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Clamping 3.3 V I/O supply against ESD transients and load-dump spikes in LTE modem subsystems. IC Role / Device Role / Timing Role: Voltage regulator and transient suppressor placed directly at IC power pins. Use Value: 210 pF capacitance minimizes signal distortion on high-speed data lines while maintaining fast response to 8 kV HBM ESD events. |
Use Scenario: Stabilizing 3.3 V microcontroller reference voltage in door module ECUs exposed to 12 V battery fluctuations. IC Role / Device Role / Timing Role: Precision shunt reference providing stable bias for ADC and CAN transceiver circuits. Use Value: AEC-Q101-qualified SZ variant ensures reliability across −40 °C to +125 °C ambient with <10 µA leakage preserving sleep-mode current budget. |
| Wireless Earbud Charging Case | Industrial IoT Sensor Node |
Use Scenario: Protecting Bluetooth SoC GPIOs from voltage overshoot during wireless charging coil coupling. IC Role / Device Role / Timing Role: Bidirectional clamp leveraging forward conduction (<0.9 V) and reverse Zener action (3.3 V). Use Value: 0.40 mm height allows placement beneath compact Li-ion cells; wettable flanks ensure solder joint integrity in high-volume SMT lines. |
Use Scenario: Regulating 3.3 V rail for LoRaWAN transceiver and MEMS accelerometer in battery-operated field nodes. IC Role / Device Role / Timing Role: Low-power shunt regulator maintaining reference accuracy over 10-year deployment life. Use Value: 250 mW rating supports intermittent 5 mA Zener current without derating in sealed enclosures; RoHS compliance meets EU industrial directives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B3V3,115 (Nexperia) | 3.3 V ±5%, 300 mW, SOD323 package (1.7 × 1.3 × 0.9 mm), no wettable flanks | Larger footprint; unsuitable for AOI-dependent high-density mobile PCBs | Select when higher power margin is needed and 0402 wettable flank is not required |
| MMBZ5226BS-7-F (Diodes Inc.) | 3.3 V ±5%, 200 mW, SOT-323 package (2.1 × 1.3 × 0.95 mm), Pb-free only | Higher thermal resistance (RJA ≈ 300 °C/W); lacks AEC-Q101 path | Choose for cost-sensitive consumer wearables where automotive qualification is unnecessary |
Compared with BZX384-B3V3,115 and MMBZ5226BS-7-F, NZ8F3V3MX2WT5G offers superior board-area efficiency, AOI compatibility, and a documented AEC-Q101 qualification pathway - critical for automotive and miniaturized portable designs demanding zero-defect assembly.
Availability
NZ8F3V3MX2WT5G is available at Aetrix Electronics and suitable for smartphone power rail protection, automotive body control modules, and wireless earbud charging cases requiring stable component supply with full traceability and lifecycle management.
Supply support for NZ8F3V3MX2WT5G 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NZ8F Series targets space-constrained, high-reliability voltage regulation in portable and automotive electronics - emphasizing ultra-small packaging, AOI readiness, and qualification-ready variants for mission-critical subsystems.
FAQ
What is the Zener voltage tolerance of NZ8F3V3MX2WT5G?
The NZ8F3V3MX2WT5G has a Zener voltage range of 3.05 V to 3.55 V at 5 mA test current, corresponding to ±7.6% tolerance about the nominal 3.3 V rating. This standard tolerance series balances cost and performance for non-critical voltage reference and clamping applications where tight regulation is not mandatory.
Is NZ8F3V3MX2WT5G qualified for automotive use?
NZ8F3V3MX2WT5G itself is not automotive-qualified, but its SZ-prefixed variant - SZNZ8F3V3MX2WT5G - is AEC-Q101 qualified and PPAP capable. The base part shares identical electrical and mechanical specifications; qualification applies to the SZ version through controlled manufacturing and test processes defined by onsemi.
What does "wettable flank" mean for NZ8F3V3MX2WT5G?
"Wettable flank" refers to solderable side walls on the X2DFNW2 package of NZ8F3V3MX2WT5G, enabling automated optical inspection (AOI) of solder joint quality without requiring X-ray. This feature improves first-pass yield in high-volume 0402 assembly and is especially valuable in mobile and automotive PCB manufacturing.
What is the maximum reverse leakage current for NZ8F3V3MX2WT5G?
The maximum reverse leakage current for NZ8F3V3MX2WT5G is 10 µA at VR = 1 V and TA = 25 °C. This low leakage supports extended battery life in always-on portable devices and ensures minimal loading on sensitive reference nodes in sensor interfaces and microcontroller peripherals.
Can NZ8F3V3MX2WT5G be used for ESD protection?
Yes, NZ8F3V3MX2WT5G can serve as a low-capacitance (210 pF) bidirectional ESD clamp: its forward voltage is ≤0.9 V at 10 mA, and reverse Zener action activates at ~3.3 V. It is commonly deployed at I/O pins of 3.3 V logic devices to suppress IEC 61000-4-2 level 4 (8 kV contact) transients without distorting high-speed signals.
NZ8F3V3MX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.3 V
- Tolerance:
- ±7.58%
- 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)
NZ8F3V3MX2WT5G FAQ
1.How can I place an order for NZ8F3V3MX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ8F3V3MX2WT5G 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 NZ8F3V3MX2WT5G reliable?
The price and inventory of NZ8F3V3MX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ8F3V3MX2WT5G is usually 5 days.
3.What payment methods are accepted for NZ8F3V3MX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ8F3V3MX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ8F3V3MX2WT5G?
NZ8F3V3MX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ8F3V3MX2WT5G 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 NZ8F3V3MX2WT5G?
For technical support, including NZ8F3V3MX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ8F3V3MX2WT5G requirements.
6.How does Aetrix verify that NZ8F3V3MX2WT5G is sourced from the original manufacturer or authorized distributors?
All NZ8F3V3MX2WT5G 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 NZ8F3V3MX2WT5G meets industry standards.
7.What is the process for return or replacement of NZ8F3V3MX2WT5G?
All NZ8F3V3MX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ8F3V3MX2WT5G, 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 NZ8F3V3MX2WT5G part is unused and in its original packaging.
Return procedure for NZ8F3V3MX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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