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onsemi SZNZ8F13VSMX2WT5G
- Part No.:
- SZNZ8F13VSMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
SZNZ8F13VSMX2WT5G.pdf
- Description:
- DIODE ZENER 13V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:8,000
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Product details
Overview
SZNZ8F13VSMX2WT5G from onsemi is an AEC-Q101-qualified Zener diode designed for precision voltage regulation and transient overvoltage protection in space-constrained automotive and industrial circuits. It delivers a nominal 13.0 V Zener breakdown voltage (12.70–13.30 V at 5 mA), 37 Ω dynamic impedance, 0.1 µA reverse leakage at 10 V, 75 pF capacitance at 0 V/1 MHz, and operates across −65 °C to +150 °C junction temperature.
For engineers reviewing the SZNZ8F13VSMX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include tight ±2.3% voltage tolerance, wettable flank X2DFNW2 (0402) package for AOI compatibility, 250 mW power dissipation on FR-4 with 1 oz. Cu, and automotive-grade reliability per AEC-Q101.
Technical Context
This device functions as a unidirectional, two-terminal voltage reference and clamp, operating in reverse-bias breakdown mode. Its low 0.40 mm body height and 1.00 mm × 0.60 mm footprint enable high-density PCB layouts in portable and automotive modules.
The SZNZ8F13VSMX2WT5G belongs to the NZ8F "tight tolerance" series (denoted by 'S' in suffix), offering tighter VZ tolerance than standard MX2W variants. It features a specified temperature coefficient of ±4 mV/°C near 13 V and supports stable regulation under DC bias up to 10 V reverse voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.70–13.30 V @ IZT = 5 mA - defines precise clamping threshold for 12 V rail protection |
| Zener Impedance (ZZT) | 37 Ω max @ 5 mA - ensures minimal voltage shift under load variation |
| Reverse Leakage (IR) | 0.1 µA max @ VR = 10 V - guarantees low standby power loss in always-on systems |
| Capacitance (C) | 75 pF @ 0 V, 1 MHz - suitable for ESD suppression without signal integrity degradation |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C (FR-4, 1 oz. Cu) - sets thermal design margin for compact layouts |
| Junction Temp Range | −65 °C to +150 °C - enables operation in under-hood automotive environments |
| AEC-Q101 Qualified | Yes - validated for automotive electronics per stress test requirements |
Pinout & Package
The SZNZ8F13VSMX2WT5G is housed in the X2DFNW2 (Case 711BG) surface-mount package - a 0402-sized, wettable flank, leadless 2-terminal device measuring 1.00 mm × 0.60 mm × 0.37 mm with 0.65 mm pitch. The package supports automated optical inspection (AOI) and reflow soldering per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked side) | Cathode | Connected to regulated output or protected node; polarity must be observed for correct clamping |
| 2 | Anode | Connected to ground or lower-potential reference; completes reverse-bias path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener Voltage Tolerance | ±2.3% (12.70–13.30 V) - reduces need for post-production calibration in 12 V system monitoring |
| Wettable Flank Package | X2DFNW2 with solderable side walls - enables reliable AOI detection of solder joint quality on fine-pitch PCBs |
| Automotive Qualification | AEC-Q101 qualified and PPAP capable - meets baseline reliability requirements for Tier 1 automotive subsystems |
| Low Capacitance | 75 pF at 0 V - preserves signal integrity in high-speed data lines (e.g., CAN FD, LIN) when used for ESD clamping |
| Pb-Free & RoHS Compliant | Halogen-free/BFR-free construction - satisfies global environmental compliance mandates without derating |
Applications
| Automotive Body Control Module (BCM) | Infotainment Power Rail Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs to microcontrollers and CAN transceivers against load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional voltage clamp placed between VIN and GND, conducting only during overvoltage events above 13.3 V. Use Value: Limits peak voltage to ≤13.3 V, preventing damage to downstream 16 V-rated ICs while maintaining <0.1 µA quiescent leakage. | Use Scenario: Suppressing ESD and fast transients on USB, HDMI, or LVDS power rails in head unit and display modules. IC Role / Device Role / Timing Role: Low-capacitance shunt protector mounted adjacent to connector entry points. Use Value: Clamps 8 kV HBM ESD pulses within nanoseconds while adding only 75 pF loading to high-speed signal paths. |
| Industrial Sensor Signal Conditioning | Portable Medical Device Battery Monitoring |
Use Scenario: Stabilizing reference voltage for analog front-end ADCs in pressure or temperature sensors exposed to EMI-rich factory environments. IC Role / Device Role / Timing Role: Precision Zener reference source providing stable 13.0 V bias for op-amp gain stages. Use Value: Delivers ±2.3% voltage accuracy across −40 °C to +125 °C, enabling <0.5% total measurement error without trimming. | Use Scenario: Overvoltage protection for lithium-ion battery pack monitoring ICs during charging cycles where cell voltage may exceed 4.2 V/cell × 3 = 12.6 V. IC Role / Device Role / Timing Role: Clamp diode connected between battery sense line and ground to prevent >13.3 V fault propagation. Use Value: Activates at 12.7 V with <37 Ω dynamic impedance, limiting fault energy to safe levels before protection IC shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NZ8F13VSMX2WT5G | No SZ prefix; not AEC-Q101 qualified; same electrical specs and package | Not approved for automotive production; suitable for industrial or consumer prototypes | Select when AEC-Q101 compliance is not required and cost sensitivity outweighs qualification overhead |
| MMBZ5243B-TP | 13 V nominal, ±5% tolerance (12.35–13.65 V), SOT-23 package, 350 mW PD | Larger footprint (2.9 mm × 1.3 mm), no wettable flanks, not AEC-Q101 qualified | Select when higher power handling is needed and board area allows SOT-23; not drop-in compatible |
Compared with NZ8F13VSMX2WT5G and MMBZ5243B-TP, the SZNZ8F13VSMX2WT5G uniquely combines automotive qualification, tight ±2.3% tolerance, and 0402 wettable flank packaging-enabling miniaturized, AOI-verified, and production-ready voltage clamping in safety-critical automotive nodes.
Availability
SZNZ8F13VSMX2WT5G is available at Aetrix Electronics and suitable for automotive body control modules, infotainment power rail protection, and industrial sensor signal conditioning requiring stable component supply, full traceability, and AEC-Q101-compliant sourcing.
Supply support for SZNZ8F13VSMX2WT5G 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, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NZ8F Series is part of onsemi's precision discrete portfolio, engineered specifically for high-reliability voltage regulation and transient suppression in space-constrained, thermally demanding environments such as automotive ECUs and portable electronics.
FAQ
What is the Zener voltage tolerance of SZNZ8F13VSMX2WT5G?
The SZNZ8F13VSMX2WT5G has a tight Zener voltage tolerance of ±2.3%, specified as 12.70 V to 13.30 V at 5 mA test current. This tolerance is confirmed in the "Tight Tolerance Series" table on page 3 of the official onsemi datasheet (Rev. 4, November 2025). The 'S' in the part number explicitly denotes this tighter specification versus the standard 'M' series.
Is SZNZ8F13VSMX2WT5G qualified for automotive use?
Yes, SZNZ8F13VSMX2WT5G is AEC-Q101 qualified and PPAP capable, as stated in the datasheet's "Specification Features" section and footnote * on pages 2–3. The "SZ" prefix indicates it meets automotive-specific site and control change requirements, making it suitable for production automotive applications including body control modules and powertrain subsystems.
What package type does SZNZ8F13VSMX2WT5G use, and why is it significant?
SZNZ8F13VSMX2WT5G uses the X2DFNW2 (Case 711BG) package - a 0402-sized, wettable flank, leadless 2-terminal device. Its significance lies in enabling automated optical inspection (AOI) of solder joints due to solderable side walls, critical for zero-defect manufacturing in high-volume automotive PCB assembly.
What is the maximum power dissipation rating for SZNZ8F13VSMX2WT5G on a standard FR-4 board?
SZNZ8F13VSMX2WT5G is rated for 250 mW total device dissipation on an FR-4 board with minimum pad layout and 1 oz. copper (Note 1 in Maximum Ratings table, page 1). Derating is 1.5 mW/°C above 25 °C ambient, resulting in ~175 mW usable power at 75 °C ambient - a key constraint for thermal design in sealed enclosures.
How does the capacitance of SZNZ8F13VSMX2WT5G affect its suitability for high-speed interfaces?
SZNZ8F13VSMX2WT5G exhibits 75 pF capacitance at 0 V and 1 MHz, measured per the Electrical Characteristics table on page 3. This low value minimizes signal distortion and reflection on high-speed buses like CAN FD or LIN, allowing placement directly at connector entry points without compromising rise/fall times or bit error rates.
SZNZ8F13VSMX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- ±2.31%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 37 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 10 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)
SZNZ8F13VSMX2WT5G FAQ
1.How can I place an order for SZNZ8F13VSMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZNZ8F13VSMX2WT5G 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 SZNZ8F13VSMX2WT5G reliable?
The price and inventory of SZNZ8F13VSMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZNZ8F13VSMX2WT5G is usually 5 days.
3.What payment methods are accepted for SZNZ8F13VSMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZNZ8F13VSMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZNZ8F13VSMX2WT5G?
SZNZ8F13VSMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZNZ8F13VSMX2WT5G 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 SZNZ8F13VSMX2WT5G?
For technical support, including SZNZ8F13VSMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZNZ8F13VSMX2WT5G requirements.
6.How does Aetrix verify that SZNZ8F13VSMX2WT5G is sourced from the original manufacturer or authorized distributors?
All SZNZ8F13VSMX2WT5G 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 SZNZ8F13VSMX2WT5G meets industry standards.
7.What is the process for return or replacement of SZNZ8F13VSMX2WT5G?
All SZNZ8F13VSMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with SZNZ8F13VSMX2WT5G, 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 SZNZ8F13VSMX2WT5G part is unused and in its original packaging.
Return procedure for SZNZ8F13VSMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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