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onsemi SZNZ8F15VMX2WT5G
- Part No.:
- SZNZ8F15VMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
SZNZ8F15VMX2WT5G.pdf
- Description:
- DIODE ZENER 15V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:7,973
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Product details
Overview
SZNZ8F15VMX2WT5G from onsemi is a 15 V ±5% Zener diode in X2DFNW2 (0402) wettable flank package, rated for 250 mW dissipation at 25 °C, with 42 Ω dynamic impedance at 5 mA and 0.1 µA leakage at 11 V, used for precision voltage clamping in automotive control units and portable electronics.
For engineers reviewing the SZNZ8F15VMX2WT5G 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 thermal derating behavior on FR-4 boards.
Technical Context
This device operates as a unidirectional voltage reference and transient clamp, leveraging silicon PN junction breakdown at reverse bias. Its 15 V nominal Zener voltage is specified at 5 mA test current (IZT), with temperature coefficient of +9 mV/°C typical across −55 °C to +150 °C.
The X2DFNW2 package enables high-density placement and automated optical inspection via side-wettable flanks. Thermal resistance is 415 °C/W (min pad) or 247 °C/W (150 mm² copper), directly impacting steady-state power handling under ambient temperature rise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.25 V to 15.75 V @ IZT = 5 mA - defines clamping threshold with ±5% tolerance for stable regulation |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C - sets maximum continuous DC power on standard FR-4 board |
| Zener Impedance (ZZT) | 42 Ω @ IZT = 5 mA - determines voltage deviation under load current variation |
| Leakage Current (IR) | 0.1 µA @ VR = 11 V - ensures minimal standby current in hold-off state |
| Capacitance (C) | 70 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and signal integrity |
| Forward Voltage (VF) | 0.9 V max @ IF = 10 mA - defines conduction drop when used in forward-biased protection paths |
| Junction Temp Range | −65 °C to +150 °C - supports operation in under-hood automotive environments |
Pinout & Package
The SZNZ8F15VMX2WT5G uses the X2DFNW2 surface-mount package (Case 711BG), measuring 1.00 mm × 0.60 mm × 0.37 mm with 0.65 mm pitch and wettable flank sidewalls for AOI compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to regulated voltage node; polarity must be observed for correct breakdown operation |
| 2 (Anode) | Zener anode terminal | Connected to ground or lower-potential reference; forms reverse-biased junction during clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics |
| Wettable flank geometry | Enables reliable solder joint inspection using automated optical inspection (AOI) systems |
| Low profile (0.40 mm height) | Supports ultra-thin portable designs such as smartphones and wearables without mechanical interference |
| Pb-Free, Halogen Free/BFR Free | Complies with RoHS Directive 2011/65/EU and automotive material compliance requirements |
| 0402 industry-standard footprint | Ensures compatibility with existing pick-and-place equipment and PCB layout libraries |
Applications
| Automotive Engine Control Unit | Smartphone Power Rail Clamp |
|---|---|
Use Scenario: Voltage stabilization of 12 V supply rail feeding microcontroller I/O buffers in engine control modules. IC Role / Device Role / Timing Role: Zener clamping diode providing overvoltage protection and reference-level limiting. Use Value: Maintains safe logic-level margins under load dump transients up to 40 W non-repetitive peak power. | Use Scenario: ESD and surge suppression on USB data lines and camera sensor power rails. IC Role / Device Role / Timing Role: Unidirectional voltage clamp absorbing fast-rising transients before they reach sensitive analog front-ends. Use Value: Limits voltage excursions to ≤15.75 V while adding only 70 pF capacitance to preserve signal integrity at 1 MHz. |
| Industrial Sensor Signal Conditioning | Automotive Body Control Module |
Use Scenario: Biasing and overvoltage protection for 4–20 mA current loop transmitter output stages. IC Role / Device Role / Timing Role: Precision shunt regulator establishing stable reference point for op-amp feedback networks. Use Value: Delivers 14.25–15.75 V regulation with <42 Ω dynamic impedance, minimizing error under varying load conditions. | Use Scenario: Voltage supervision of LIN bus transceiver supply in door module ECUs. IC Role / Device Role / Timing Role: Reverse-bias clamp protecting transceiver inputs against battery reverse connection and jump-start surges. Use Value: Withstands −65 °C to +150 °C operating range and meets AEC-Q101 stress testing for long-term reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5245B-TP | 15 V ±5%, SOD-123 package (1.8 mm × 1.4 mm), 500 mW rating, no wettable flanks | Larger footprint; unsuitable for AOI-dependent high-volume automotive assembly | Preferred where higher power dissipation is required and space constraints are less critical |
| BZX84-C15LT1G | 15 V ±5%, SOT-23 package (3.0 mm × 1.4 mm), 350 mW rating, lead-free but not AEC-Q101 qualified | Not certified for automotive use; lacks PPAP documentation support | Appropriate for industrial or consumer applications lacking automotive qualification requirements |
Compared with MMSZ5245B-TP and BZX84-C15LT1G, the SZNZ8F15VMX2WT5G offers the smallest footprint (0402), AEC-Q101 qualification, and wettable flank geometry-making it uniquely suited for space-constrained, AOI-governed automotive PCBs requiring traceable production control.
Availability
SZNZ8F15VMX2WT5G is available at Aetrix Electronics and suitable for automotive engine control units, smartphone power rail protection, and industrial sensor signal conditioning requiring stable component supply, consistent AEC-Q101 compliance, and high-volume tape-and-reel delivery.
Supply support for SZNZ8F15VMX2WT5G 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 power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NZ8F Series is designed specifically for compact, high-reliability voltage regulation in space-constrained automotive and portable electronics, emphasizing AEC-Q101 qualification, wettable flank manufacturability, and tight parametric consistency.
FAQ
What is the Zener voltage tolerance of SZNZ8F15VMX2WT5G?
The SZNZ8F15VMX2WT5G has a Zener voltage tolerance of ±5%, with a specified range of 14.25 V to 15.75 V measured at IZT = 5 mA and TA = 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 2 of the official onsemi datasheet (Rev. 4, November 2025). The device belongs to the standard tolerance NZ8FxxxMX2W series, distinct from the tighter ±2.5% S-series variants.
Is SZNZ8F15VMX2WT5G qualified for automotive applications?
Yes, SZNZ8F15VMX2WT5G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the datasheet's Specification Features section. The "SZ" prefix denotes compliance with automotive-specific site and control change requirements. It is rated for junction temperatures from −65 °C to +150 °C and validated for use in engine control units, body control modules, and other automotive subsystems requiring high-reliability voltage clamping.
What is the thermal resistance of SZNZ8F15VMX2WT5G on a standard PCB?
The SZNZ8F15VMX2WT5G 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, per Note 1 in the Maximum Ratings table. With enhanced copper area (150 mm², 1 oz.), RJA improves to 247 °C/W (Note 2), directly affecting allowable power dissipation under elevated ambient temperatures.
Does SZNZ8F15VMX2WT5G support automated optical inspection (AOI)?
Yes, SZNZ8F15VMX2WT5G features a wettable flank package (X2DFNW2) specifically engineered for optimal AOI. The side-wettable terminations enable reliable solder fillet inspection during SMT reflow, a requirement emphasized in the datasheet's Specification Features. This capability supports high-yield, zero-defect manufacturing in automotive and portable electronics production lines.
What is the maximum non-repetitive peak reverse power rating for SZNZ8F15VMX2WT5G?
The SZNZ8F15VMX2WT5G has a non-repetitive peak reverse power rating (PZSM) of 40 W, specified at TA = 25 °C with pulse width tp = 100 µs (not seconds, per Note 3 correction in datasheet). This rating enables robust transient suppression in automotive load-dump and ISO 7637-2 pulse scenarios, provided thermal recovery time between events is sufficient.
SZNZ8F15VMX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 42 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 11 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)
SZNZ8F15VMX2WT5G FAQ
1.How can I place an order for SZNZ8F15VMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZNZ8F15VMX2WT5G 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 SZNZ8F15VMX2WT5G reliable?
The price and inventory of SZNZ8F15VMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZNZ8F15VMX2WT5G is usually 5 days.
3.What payment methods are accepted for SZNZ8F15VMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZNZ8F15VMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZNZ8F15VMX2WT5G?
SZNZ8F15VMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZNZ8F15VMX2WT5G 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 SZNZ8F15VMX2WT5G?
For technical support, including SZNZ8F15VMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZNZ8F15VMX2WT5G requirements.
6.How does Aetrix verify that SZNZ8F15VMX2WT5G is sourced from the original manufacturer or authorized distributors?
All SZNZ8F15VMX2WT5G 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 SZNZ8F15VMX2WT5G meets industry standards.
7.What is the process for return or replacement of SZNZ8F15VMX2WT5G?
All SZNZ8F15VMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with SZNZ8F15VMX2WT5G, 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 SZNZ8F15VMX2WT5G part is unused and in its original packaging.
Return procedure for SZNZ8F15VMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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