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onsemi SZNZ8F15VSMX2WT5G
- Part No.:
- SZNZ8F15VSMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
SZNZ8F15VSMX2WT5G.pdf
- Description:
- DIODE ZENER 15V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:7,860
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Product details
Overview
SZNZ8F15VSMX2WT5G 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 15 V Zener breakdown voltage (14.66–15.35 V at IZT = 5 mA), 42 Ω dynamic impedance, and 0.1 µA reverse leakage at 11 V, housed in a wettable flank X2DFNW2 (0402) package.
For engineers reviewing the SZNZ8F15VSMX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include tight ±2.3% voltage tolerance, low 0.40 mm profile for AOI-compatible assembly, and automotive-grade reliability under −65 °C to +150 °C operation.
Technical Context
This device operates as a unidirectional, two-terminal voltage reference with stable reverse-biased Zener conduction. Its electrical behavior is defined at IZT = 5 mA, with temperature coefficient of ±4 mV/°C and capacitance of 70 pF at 0 V bias and 1 MHz.
The X2DFNW2 package enables high-density placement and automated optical inspection via side-wettable flanks. Thermal resistance is 247 °C/W (150 mm² pad, 1 oz Cu), supporting 500 mW dissipation at 25 °C ambient before derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.66–15.35 V at IZT = 5 mA - ensures precise clamping within ±2.3% tolerance for stable reference or protection |
| Zener Impedance (ZZT) | 42 Ω max at IZT = 5 mA - maintains low voltage deviation under varying load current |
| Reverse Leakage (IR) | 0.1 µA max at VR = 11 V - minimizes standby power loss in battery-sensitive systems |
| Capacitance (C) | 70 pF at VR = 0 V, f = 1 MHz - limits high-frequency signal coupling in RF-adjacent circuits |
| Power Dissipation (PD) | 500 mW on FR-4 (150 mm² pad) - supports robust transient suppression without thermal runaway |
| Junction Temp Range | −65 °C to +150 °C - certified for under-hood automotive and industrial control unit environments |
| AEC-Q101 Qualified | Yes - validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
Pinout & Package
The SZNZ8F15VSMX2WT5G is housed in the X2DFNW2 surface-mount package (Case 711BG), measuring 1.00 × 0.60 × 0.37 mm with 0.65 mm pitch and wettable flank geometry for AOI compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to regulated/high-side rail; reverse bias applied here to initiate Zener conduction |
| 2 (Anode) | Zener anode terminal | Typically tied to ground or low-side reference; completes current path during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Tight voltage tolerance | ±2.3% (14.66–15.35 V) - reduces calibration overhead in precision sensor supply rails |
| Wettable flank package | X2DFNW2 (0402) with side-solderable terminations - enables 100% automated optical inspection for zero-defect automotive manufacturing |
| Low profile height | 0.40 mm max - allows placement beneath connectors or in ultra-thin modules like ADAS camera housings |
| AEC-Q101 qualification | Qualified per Rev-G stress testing - supports PPAP submission for Tier-1 automotive programs |
| Pb-Free / RoHS / Halogen-Free | Compliant with J-STD-609 Class 1 moisture sensitivity and EU RoHS Directive 2011/65/EU - meets global environmental compliance mandates |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage clamping on LIN bus transceiver supply rail subject to load dump transients up to 40 V. IC Role / Device Role / Timing Role: Zener diode providing primary overvoltage protection for 15 V-regulated subsystems. Use Value: Limits rail excursion to ≤15.35 V with 42 Ω impedance, preventing damage to downstream CAN/LIN interface ICs. |
Use Scenario: Stabilizing excitation voltage for 4–20 mA current-loop pressure sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Precision shunt reference maintaining constant 15 V bias despite input ripple and temperature drift. Use Value: Delivers ±2.3% voltage accuracy and <0.1 µA leakage, ensuring sensor output linearity remains within 0.1% full-scale error. |
| Automotive Infotainment Power Sequencing | Portable Medical Diagnostic Device |
Use Scenario: Regulating auxiliary 15 V rail for display backlight drivers during cold-crank (5.5 V battery) and alternator surge (18 V) conditions. IC Role / Device Role / Timing Role: Zener-based crowbar element in discrete LDO pre-regulator stage. Use Value: Maintains stable 15 V output with 247 °C/W thermal resistance, enabling continuous operation at 85 °C ambient. |
Use Scenario: Protecting analog front-end ADC inputs from ESD events in handheld ultrasound probe interfaces. IC Role / Device Role / Timing Role: Low-capacitance (70 pF) transient voltage suppressor placed directly at connector entry point. Use Value: Clamps >8 kV HBM ESD pulses while adding minimal signal distortion due to sub-100 pF capacitance at DC bias. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1SMB5925BT3G | 15 V, ±5% tolerance, DO-214AA package (3.5 mm × 2.7 mm), 3 W PD, 100 Ω ZZT | Larger footprint, higher power, looser tolerance - suited for non-space-constrained industrial power supplies | Select when board area is not constrained and higher surge energy absorption (>3 W) is required. |
| BZX84-C15LT1G | 15 V, ±5% tolerance, SOT-23 package (3.0 mm × 1.4 mm), 350 mW PD, 30 Ω ZZT | No AEC-Q101 qualification, no wettable flanks, higher profile (1.1 mm) - limited to commercial-grade portable electronics | Select only for cost-sensitive consumer designs where automotive qualification and AOI support are unnecessary. |
Compared with 1SMB5925BT3G and BZX84-C15LT1G, the SZNZ8F15VSMX2WT5G uniquely combines AEC-Q101 qualification, 0.40 mm height, wettable flanks, and ±2.3% tolerance - making it the sole choice for high-reliability, miniaturized automotive voltage clamping where PCB real estate and process traceability are critical.
Availability
SZNZ8F15VSMX2WT5G is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, and portable medical diagnostic devices requiring stable component supply across extended temperature ranges and strict compliance validation.
Supply support for SZNZ8F15VSMX2WT5G 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 silicon solutions for automotive, industrial, cloud, medical, and IoT applications, with core expertise in power management, analog, and sensing technologies.
The NZ8F Series is part of onsemi's precision discrete portfolio, engineered specifically for compact, high-reliability voltage regulation in automotive ECUs and industrial control units where AEC-Q101 compliance and AOI-ready packaging are mandatory.
FAQ
What is the Zener voltage tolerance of SZNZ8F15VSMX2WT5G?
The SZNZ8F15VSMX2WT5G has a tight Zener voltage tolerance of ±2.3%, specified as 14.66 V minimum to 15.35 V maximum at IZT = 5 mA. This tighter tolerance than standard-series Zeners (e.g., NZ8F15VMX2WT5G at ±5%) enables reduced calibration effort in precision voltage reference designs and improves system-level accuracy in automotive sensor biasing circuits using the SZNZ8F15VSMX2WT5G.
Is SZNZ8F15VSMX2WT5G qualified for automotive use?
Yes, the SZNZ8F15VSMX2WT5G is AEC-Q101 qualified and PPAP capable, with full stress test validation including HTGB, HTRB, and temperature cycling. The "SZ" prefix explicitly denotes compliance with automotive-specific site and control change requirements, and the device is rated for operation from −65 °C to +150 °C - making it suitable for engine bay, transmission control, and ADAS applications where the SZNZ8F15VSMX2WT5G is deployed.
What package type does SZNZ8F15VSMX2WT5G use?
The SZNZ8F15VSMX2WT5G uses the X2DFNW2 package (Case 711BG), a 0402-sized wettable flank leadless package measuring 1.00 × 0.60 × 0.37 mm. Its side-wettable terminations enable reliable automated optical inspection (AOI), and its 0.40 mm maximum height supports ultra-thin PCB assemblies - a key differentiator versus legacy SOD-123 or SOT-23 packages used by competing Zeners such as the SZNZ8F15VSMX2WT5G's alternatives.
What is the maximum power dissipation for SZNZ8F15VSMX2WT5G?
The SZNZ8F15VSMX2WT5G supports 500 mW total device dissipation on a 150 mm² FR-4 board with 1 oz copper (derating at 1.2 mW/°C above 25 °C), per Note 2 in the datasheet. This is higher than the 250 mW rating on minimal-pad layouts (Note 1), reflecting its optimized thermal performance in production-grade PCBs - a critical specification when sizing the SZNZ8F15VSMX2WT5G for transient suppression in automotive power domains.
Does SZNZ8F15VSMX2WT5G have RoHS and halogen-free compliance?
Yes, the SZNZ8F15VSMX2WT5G is Pb-Free, Halogen Free/BFR Free, and fully RoHS compliant per EU Directive 2011/65/EU. It meets J-STD-609 Class 1 moisture sensitivity and carries the "G" suffix denoting green packaging. This compliance is documented in onsemi's official materials declaration and applies to all units shipped as SZNZ8F15VSMX2WT5G - essential for global electronics manufacturing and export compliance programs.
SZNZ8F15VSMX2WT5G 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:
- ±2.3%
- 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)
SZNZ8F15VSMX2WT5G FAQ
1.How can I place an order for SZNZ8F15VSMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZNZ8F15VSMX2WT5G 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 SZNZ8F15VSMX2WT5G reliable?
The price and inventory of SZNZ8F15VSMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZNZ8F15VSMX2WT5G is usually 5 days.
3.What payment methods are accepted for SZNZ8F15VSMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZNZ8F15VSMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZNZ8F15VSMX2WT5G?
SZNZ8F15VSMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZNZ8F15VSMX2WT5G 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 SZNZ8F15VSMX2WT5G?
For technical support, including SZNZ8F15VSMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZNZ8F15VSMX2WT5G requirements.
6.How does Aetrix verify that SZNZ8F15VSMX2WT5G is sourced from the original manufacturer or authorized distributors?
All SZNZ8F15VSMX2WT5G 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 SZNZ8F15VSMX2WT5G meets industry standards.
7.What is the process for return or replacement of SZNZ8F15VSMX2WT5G?
All SZNZ8F15VSMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with SZNZ8F15VSMX2WT5G, 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 SZNZ8F15VSMX2WT5G part is unused and in its original packaging.
Return procedure for SZNZ8F15VSMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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