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onsemi SZNZ8F11VMX2WT5G
- Part No.:
- SZNZ8F11VMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
SZNZ8F11VMX2WT5G.pdf
- Description:
- DIODE ZENER 11V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:8,000
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Product details
Overview
SZNZ8F11VMX2WT5G from onsemi is a 10.45–11.55 V, ±5% tolerance Zener diode in X2DFNW2 (0402) wettable flank package, rated for 250 mW dissipation on FR-4 board with 1.5 mW/°C derating, designed for precision voltage regulation and ESD-sensitive signal line clamping in space-constrained automotive control units.
For engineers reviewing the SZNZ8F11VMX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±5%), low-profile 0.40 mm height, AEC-Q101 qualification, wettable flank geometry for AOI, and 80 pF capacitance at 0 V bias - all critical for high-reliability, miniaturized power rail protection.
Technical Context
This device operates as a unidirectional Zener regulator with specified reverse breakdown at IZT = 5 mA, exhibiting 30 Ω maximum dynamic impedance (ZZT) and 0.1 µA max leakage current at VR = 8 V. Its thermal resistance is 415 °C/W (FR-4 minimum pad), enabling stable operation across −65 °C to +150 °C junction temperature range.
The SZ prefix confirms AEC-Q101 qualification and PPAP capability, and the X2DFNW2 package features wettable flanks for automated optical inspection - a requirement for automotive-grade surface-mount assembly traceability and solder-joint reliability validation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.45–11.55 V @ IZT = 5 mA - defines precise clamping threshold for 12 V rail stabilization |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C - sets maximum continuous power handling on standard FR-4 PCB |
| Zener Impedance (ZZT) | ≤30 Ω @ IZT = 5 mA - ensures low voltage deviation under load transients |
| Reverse Leakage (IR) | ≤0.1 µA @ VR = 8 V - guarantees minimal standby current in always-on circuits |
| Capacitance (C) | 80 pF @ VR = 0 V, f = 1 MHz - limits signal distortion in high-speed data line protection |
| Package | X2DFNW2 (0402, 1.00 × 0.60 × 0.37 mm) - enables ultra-dense layout with AOI-compatible wettable flanks |
| Qualification | AEC-Q101 qualified - validated for automotive under-hood and body-control module environments |
Pinout & Package
The SZNZ8F11VMX2WT5G uses the X2DFNW2 surface-mount package (Case 711BG), measuring 1.00 mm × 0.60 mm × 0.37 mm with wettable flank side walls for solder fillet inspection. It has two terminals: Cathode (Pin 1) and Anode (Pin 2), marked per device-specific code "AU" on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener reference terminal | Connected to regulated voltage node; polarity must be observed to enable reverse-bias conduction |
| 2 (Anode) | Ground/reference return | Tied to system ground or lower-potential rail; completes Zener conduction path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and body electronics |
| Wettable flank geometry | Enables 100% automated optical inspection of solder joints without X-ray, reducing manufacturing defect escape |
| Low profile (0.40 mm height) | Supports co-placement with fine-pitch ICs and stacked components in ultra-thin portable and automotive modules |
| Pb-Free, Halogen-Free/BFR-Free | Meets RoHS Directive 2011/65/EU and automotive ELV compliance requirements |
| Stable 10.45–11.55 V regulation | Provides tight voltage clamping for 12 V system rails with minimal thermal drift across −65 °C to +150 °C |
Applications
| Automotive Body Control Module | USB Type-C Port Protection |
|---|---|
Use Scenario: Voltage clamping on LIN bus transceiver supply lines subject to load dump and battery reversal transients. IC Role / Device Role / Timing Role: Zener regulator providing primary overvoltage protection for 12 V rail-fed microcontrollers and CAN/LIN PHYs. Use Value: 10.45–11.55 V clamping window prevents damage to 12 V tolerant ICs while maintaining <0.1 µA leakage to avoid battery drain. | Use Scenario: ESD and overvoltage suppression on USB CC and VCONN lines in compact mobile accessories. IC Role / Device Role / Timing Role: Unidirectional Zener clamp absorbing IEC 61000-4-2 Level 4 (±15 kV air) transients before reaching USB controller. Use Value: 80 pF capacitance ensures <1% signal integrity impact on 10 Gbps USB 3.2 Gen 2x2 differential pairs. |
| Industrial Sensor Signal Conditioning | Medical Wearable Power Monitoring |
Use Scenario: Stabilizing reference voltage for 24-bit delta-sigma ADCs in pressure and temperature sensor front-ends. IC Role / Device Role / Timing Role: Precision shunt regulator establishing low-noise 10.5 V reference for analog signal chain biasing. Use Value: 30 Ω ZZT minimizes output impedance variation under varying sensor excitation currents, improving measurement repeatability. | Use Scenario: Overvoltage protection on lithium-ion battery monitor IC inputs in patch-style ECG devices. IC Role / Device Role / Timing Role: Low-leakage Zener clamp safeguarding 1.8 V/3.3 V analog monitoring inputs against accidental 12 V probe contact. Use Value: 0.1 µA leakage at 8 V ensures <1 nA error contribution to sub-µA current-sense accuracy in battery fuel gauging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1SMB5919BT3G | Higher power (3 W), DO-214AA package (3.6 × 2.7 mm), 10.5 V nominal, ±5% tolerance | Designed for board-level surge suppression, not space-constrained signal-line clamping | Select when higher pulse energy handling (e.g., ISO 7637-2 Pulse 5a) is required and 0402 footprint is not mandatory |
| BZX84-C11LT1G | SOT-23 package (3.0 × 1.4 mm), 10–12 V range, ±5% tolerance, 350 mW PD, 100 Ω ZZT | Larger footprint, higher impedance, no AEC-Q101 qualification | Choose for cost-sensitive industrial PCBs where automotive qualification and ultra-low capacitance are not required |
Compared with SZNZ8F11VMX2WT5G, 1SMB5919BT3G offers 12× higher surge power but lacks wettable flanks and AEC-Q101 validation; BZX84-C11LT1G provides similar voltage tolerance but trades 2.5× higher ZZT and no automotive qualification for broader commercial availability.
Availability
SZNZ8F11VMX2WT5G is available at Aetrix Electronics and suitable for automotive body control modules, USB Type-C interface protection, and industrial sensor signal conditioning requiring stable component supply, full traceability, and AEC-Q101 compliance.
Supply support for SZNZ8F11VMX2WT5G 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 supplier of energy-efficient semiconductor solutions, specializing in automotive, industrial, cloud, and IoT applications.
The NZ8F Series is part of onsemi's precision discrete portfolio, engineered specifically for miniaturized, high-reliability voltage regulation in automotive and portable electronics where space, thermal performance, and process traceability are critical.
FAQ
What is the Zener voltage tolerance of SZNZ8F11VMX2WT5G?
The SZNZ8F11VMX2WT5G has a Zener voltage range of 10.45 V to 11.55 V at IZT = 5 mA, corresponding to a ±5% tolerance around 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), and applies strictly to the SZNZ8F11VMX2WT5G variant within the NZ8FxxxMX2W standard tolerance series.
Is SZNZ8F11VMX2WT5G qualified for automotive use?
Yes, SZNZ8F11VMX2WT5G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the datasheet's Specification Features section and reinforced by the "SZ" prefix designation. The device meets stress test requirements for temperature cycling, humidity bias, and mechanical shock applicable to automotive under-hood and body electronics, and is intended for use in systems requiring certified reliability such as engine control units and ADAS sensor interfaces.
What is the maximum power dissipation of SZNZ8F11VMX2WT5G on a standard FR-4 PCB?
SZNZ8F11VMX2WT5G delivers 250 mW total device dissipation at TA = 25 °C on an FR-4 board with minimum pad layout (1 oz. Cu), with a derating factor of 1.5 mW/°C above 25 °C. This value is specified in Note 1 of the Maximum Ratings table (page 1) and defines the safe continuous operating envelope for thermal design in compact PCB layouts.
Does SZNZ8F11VMX2WT5G have wettable flanks, and why does it matter?
Yes, SZNZ8F11VMX2WT5G uses the X2DFNW2 package with wettable flanks, as documented in the datasheet's Specification Features and Mechanical Case Outline sections. This geometry allows automated optical inspection (AOI) systems to verify solder fillet formation on side walls - a critical requirement for zero-defect manufacturing in automotive electronics, eliminating the need for costly X-ray inspection in high-volume SMT lines.
What is the reverse leakage current specification for SZNZ8F11VMX2WT5G?
The reverse leakage current (IR) for SZNZ8F11VMX2WT5G is guaranteed ≤0.1 µA at VR = 8 V and TA = 25 °C, per the Electrical Characteristics table on page 2. This low leakage supports battery-powered applications such as wearables and remote sensors, where standby current directly impacts operational lifetime - and is measured under standardized test conditions defined in the onsemi datasheet.
SZNZ8F11VMX2WT5G 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 2-X2DFNW (1x0.6)
SZNZ8F11VMX2WT5G FAQ
1.How can I place an order for SZNZ8F11VMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZNZ8F11VMX2WT5G 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 SZNZ8F11VMX2WT5G reliable?
The price and inventory of SZNZ8F11VMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZNZ8F11VMX2WT5G is usually 5 days.
3.What payment methods are accepted for SZNZ8F11VMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZNZ8F11VMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZNZ8F11VMX2WT5G?
SZNZ8F11VMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZNZ8F11VMX2WT5G 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 SZNZ8F11VMX2WT5G?
For technical support, including SZNZ8F11VMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZNZ8F11VMX2WT5G requirements.
6.How does Aetrix verify that SZNZ8F11VMX2WT5G is sourced from the original manufacturer or authorized distributors?
All SZNZ8F11VMX2WT5G 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 SZNZ8F11VMX2WT5G meets industry standards.
7.What is the process for return or replacement of SZNZ8F11VMX2WT5G?
All SZNZ8F11VMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with SZNZ8F11VMX2WT5G, 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 SZNZ8F11VMX2WT5G part is unused and in its original packaging.
Return procedure for SZNZ8F11VMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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