onsemi NZ8F11VMX2WT5G
- Part No.:
- NZ8F11VMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
NZ8F11VMX2WT5G.pdf
- Description:
- DIODE ZENER 11V 250MW 2-X2DFNW
- Quantity:
- Payment:

- Shipping:

Inventory:5,533
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Product details
Overview
NZ8F11VMX2WT5G from onsemi is a 250 mW, 10.45–11.55 V Zener diode in X2DFNW2 (0402) wettable flank package, designed for precision voltage regulation and ESD/transient clamping in space-constrained PCBs. It delivers 30 µA max reverse leakage at 8 V, 8 Ω max dynamic impedance at 5 mA, and 80 pF capacitance at 0 V - ideal for power rail stabilization in automotive control units and portable electronics.
For engineers reviewing the NZ8F11VMX2WT5G datasheet, pinout, applications, or equivalent options, key selection considerations include its AEC-Q101 qualification, tight thermal resistance (415 °C/W on FR-4), low 0.40 mm body height, and compatibility with automated optical inspection (AOI) due to wettable flank geometry.
Technical Context
This device operates as a unidirectional Zener regulator with specified reverse breakdown behavior at IZT = 5 mA. Its electrical characteristics are fully characterized from −65 °C to +150 °C, supporting use in extended-temperature automotive and industrial environments.
The X2DFNW2 package enables high-density placement while maintaining reliable solder joint inspection via AOI. Thermal performance is defined for two board conditions: minimal pad (250 mW rating) and 150 mm² copper area (500 mW rating), allowing design flexibility based on layout constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 10.45–11.55 V @ IZT = 5 mA - defines stable regulation window for 12 V rail clamping |
| Power Dissipation | 250 mW on FR-4 (1 oz Cu, min pad) - sets maximum continuous clamping energy without derating |
| Zener Impedance | 30 Ω max @ IZT = 5 mA - ensures low output impedance for effective noise suppression |
| Reverse Leakage | 0.1 µA max @ VR = 8 V - guarantees minimal standby current in battery-powered systems |
| Capacitance | 80 pF @ VR = 0 V, f = 1 MHz - limits high-frequency signal distortion in data line protection |
| Package | X2DFNW2 (0402, 1.00 × 0.60 × 0.37 mm) - supports ultra-compact routing and AOI-compatible reflow |
| Qualification | AEC-Q101 qualified - validates reliability for automotive under-hood and infotainment applications |
Pinout & Package
The NZ8F11VMX2WT5G uses the X2DFNW2 surface-mount package (Case 711BG), measuring 1.00 mm × 0.60 mm × 0.37 mm with wettable flank sidewalls for AOI compatibility. It features a 2-terminal configuration: Cathode (Pin 1) and Anode (Pin 2), marked "AU" on the top surface per device marking diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference terminal | Connected to regulated node; reverse-biased operation requires this terminal at higher potential than anode |
| 2 (Anode) | Reference ground/reference return | Tied to system ground or lower-potential rail; completes Zener conduction path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Wettable flank leads | Enables 100% automated optical inspection of solder joints on fine-pitch 0402 placements |
| AEC-Q101 qualification | Validates robustness for automotive applications including engine control modules and ADAS sensors |
| Pb-free, RoHS-compliant | Meets global environmental compliance requirements without compromising thermal or electrical performance |
| Low profile (0.40 mm height) | Reduces mechanical interference in stacked PCB assemblies and thin handheld enclosures |
| Standard tolerance series | ±5% Zener voltage tolerance (10.45–11.55 V) balances cost and precision for non-critical rails |
Applications
| Automotive Power Rail Protection | Portable Device Battery Monitoring |
|---|---|
Use Scenario: Clamping transients on 12 V supply lines in engine control units exposed to load dump pulses. IC Role / Device Role / Timing Role: Unidirectional voltage clamp absorbing >40 W non-repetitive surges per JEDEC spec. Use Value: Prevents downstream MCU reset or sensor damage by holding rail voltage ≤11.55 V during 100 µs spikes. |
Use Scenario: Stabilizing reference voltage for fuel gauge ADC in smartphones and wearables. IC Role / Device Role / Timing Role: Precision shunt regulator providing low-drift bias for analog front-end circuitry. Use Value: Maintains <0.1 µA leakage at 8 V, extending battery life in always-on monitoring modes. |
| USB Data Line ESD Clamp | Industrial Sensor Signal Conditioning |
Use Scenario: Protecting USB 2.0 D+/D− lines from ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Low-capacitance (80 pF) transient voltage suppressor placed inline with high-speed signals. Use Value: Limits signal distortion while clamping fast-rising ESD events below IC damage threshold. |
Use Scenario: Regulating excitation voltage for bridge-based pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Stable 11 V shunt reference ensuring consistent sensor output scaling across temperature. Use Value: Delivers <30 Ω dynamic impedance to minimize regulation error under varying load currents. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B11,115 | 11 V nominal, ±5% tolerance, SOD-323 package (1.7 × 1.3 × 0.9 mm), 300 mW rating | Larger footprint and higher thermal resistance (500 °C/W); lacks AEC-Q101 qualification | Select when higher power dissipation is required and AOI compatibility is not mandatory |
| MMSZ5240BT1G | 10 V nominal, ±5% tolerance, SOD-123 package (3.7 × 1.6 × 1.1 mm), 500 mW rating | Higher profile, no wettable flanks, wider voltage spread (9.5–10.5 V), not AEC-Q101 qualified | Choose for legacy designs using larger footprints where cost is prioritized over miniaturization |
Compared with BZX384-B11,115 and MMSZ5240BT1G, the NZ8F11VMX2WT5G offers superior board-area efficiency, AOI support, and automotive-grade reliability - making it optimal for next-generation compact, safety-critical systems despite its lower absolute power rating.
Availability
NZ8F11VMX2WT5G is available at Aetrix Electronics and suitable for automotive control units, portable electronics power management, and industrial sensor interfaces requiring stable component supply across long production lifecycles.
Supply support for NZ8F11VMX2WT5G 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 is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NZ8F Series belongs to onsemi's precision Zener diode portfolio, engineered specifically for space-constrained, high-reliability voltage regulation and transient suppression in automotive and portable electronics.
FAQ
What is the Zener voltage tolerance of NZ8F11VMX2WT5G?
The NZ8F11VMX2WT5G has a standard tolerance Zener voltage range of 10.45 V to 11.55 V at test current IZT = 5 mA, corresponding to ±5% about the nominal 11 V rating. This tolerance is confirmed in the Electrical Characteristics table on page 2 of the official onsemi datasheet (Rev. 4, November 2025).
Is NZ8F11VMX2WT5G qualified for automotive use?
Yes, NZ8F11VMX2WT5G is AEC-Q101 qualified and PPAP capable when ordered with the SZ prefix (e.g., SZNZ8F11VMX2WT5G). The base part NZ8F11VMX2WT5G shares identical electrical and thermal specifications and is widely used in automotive control units per onsemi's documentation.
What is the maximum reverse leakage current for NZ8F11VMX2WT5G?
The maximum reverse leakage current for NZ8F11VMX2WT5G is 0.1 µA at VR = 8 V and TA = 25 °C, as specified in the Electrical Characteristics table. This low leakage supports ultra-low-power operation in battery-backed systems and sensor bias networks.
Does NZ8F11VMX2WT5G support automated optical inspection (AOI)?
Yes, NZ8F11VMX2WT5G uses the X2DFNW2 package with wettable flank sidewalls, enabling full-spectrum AOI of solder fillets. This feature is explicitly called out in the datasheet's Specification Features section and validated per industry-standard AOI process windows.
What is the thermal resistance (RJA) of NZ8F11VMX2WT5G on a standard FR-4 board?
The junction-to-ambient thermal resistance (RJA) of NZ8F11VMX2WT5G is 415 °C/W when mounted on an FR-4 board with minimum pad size and 1 oz copper. This value assumes natural convection and is critical for calculating safe operating temperature rise at 250 mW dissipation.
NZ8F11VMX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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)
NZ8F11VMX2WT5G FAQ
1.How can I place an order for NZ8F11VMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ8F11VMX2WT5G 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 NZ8F11VMX2WT5G reliable?
The price and inventory of NZ8F11VMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ8F11VMX2WT5G is usually 5 days.
3.What payment methods are accepted for NZ8F11VMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ8F11VMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ8F11VMX2WT5G?
NZ8F11VMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ8F11VMX2WT5G 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 NZ8F11VMX2WT5G?
For technical support, including NZ8F11VMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ8F11VMX2WT5G requirements.
6.How does Aetrix verify that NZ8F11VMX2WT5G is sourced from the original manufacturer or authorized distributors?
All NZ8F11VMX2WT5G 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 NZ8F11VMX2WT5G meets industry standards.
7.What is the process for return or replacement of NZ8F11VMX2WT5G?
All NZ8F11VMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ8F11VMX2WT5G, 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 NZ8F11VMX2WT5G part is unused and in its original packaging.
Return procedure for NZ8F11VMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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