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onsemi NZ8F15VSMX2WT5G
- Part No.:
- NZ8F15VSMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
NZ8F15VSMX2WT5G.pdf
- Description:
- DIODE ZENER 15V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:7,563
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Product details
Overview
NZ8F15VSMX2WT5G from onsemi is a 15 V Zener diode in X2DFNW2 (0402) wettable flank package, rated for 250 mW dissipation at 25 °C, with ±2.3% voltage tolerance (14.66–15.35 V @ 5 mA), 42 Ω dynamic impedance, and 0.1 µA leakage at 11 V reverse bias. It provides precision voltage regulation in space-constrained automotive control units and portable electronics.
For engineers reviewing the NZ8F15VSMX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include tight 2.3% Zener voltage tolerance, wettable flank geometry for AOI compatibility, AEC-Q101 qualification, 70 pF capacitance at 0 V, and thermal resistance of 415 °C/W on FR-4 minimum pad layout.
Technical Context
This device operates as a unidirectional voltage reference diode, conducting in reverse breakdown to clamp or regulate voltage at its nominal Zener voltage. Its low 0.40 mm body height and 1.00 × 0.60 mm footprint support high-density PCB layouts in automotive and portable applications.
The NZ8F15VSMX2WT5G exhibits a positive temperature coefficient (~6 mV/°C per typical curve data), stable leakage performance down to −65 °C, and maintains regulation integrity under transient reverse power pulses up to 40 W (100 µs). It is Pb-free, halogen-free, RoHS-compliant, and qualified to AEC-Q101 for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.66–15.35 V @ IZT = 5 mA - ensures precise 15 V regulation with ±2.3% tolerance for stable reference in feedback loops |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C - supports continuous operation in low-power protection circuits without forced cooling |
| Zener Impedance (ZZT) | 42 Ω @ IZT = 5 mA - minimizes output voltage variation under load current changes in regulation paths |
| Reverse Leakage (IR) | 0.1 µA @ VR = 11 V - enables low-quiescent-current standby modes in battery-powered systems |
| Capacitance (C) | 70 pF @ VR = 0 V, f = 1 MHz - limits high-frequency noise coupling in signal-line ESD protection and filtering |
| Thermal Resistance (RJA) | 415 °C/W (FR-4, min pad) - defines maximum junction temperature rise under ambient conditions for reliability margining |
| Package | X2DFNW2 (0402, 1.00 × 0.60 × 0.37 mm) - enables automated optical inspection via wettable flank sidewalls and ultra-compact placement |
Pinout & Package
X2DFNW2 is a 2-terminal surface-mount package with exposed copper sidewalls for AOI. Dimensions: 1.00 mm × 0.60 mm × 0.37 mm, pitch 0.65 mm, body height 0.40 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to regulated voltage node; polarity must be observed to enable reverse-bias conduction |
| 2 (Anode) | Zener anode terminal | Connected to ground or lower-potential reference; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Tight voltage tolerance | ±2.3% (14.66–15.35 V) enables accurate 15 V rail sensing without external trimming |
| Wettable flank geometry | Exposed copper sidewalls allow 100% automated optical inspection of solder joint quality on fine-pitch 0402 placements |
| AEC-Q101 qualification | Validated for automotive control units including engine management and ADAS sensor interfaces |
| Pb-free / RoHS compliance | Meets global environmental regulations and eliminates lead contamination risk in reflow and repair processes |
| Low-profile packaging | 0.40 mm max height allows stacking under shields or integration into ultra-thin handheld PCB assemblies |
Applications
| Automotive Engine Control Unit (ECU) Voltage Reference | USB-C Port Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing 15 V supply rail for microcontroller ADC reference and sensor biasing in under-hood ECUs exposed to −40 to +125 °C ambient. IC Role / Device Role / Timing Role: Zener diode providing precision shunt regulation and transient overvoltage clamping. Use Value: Maintains <±1% reference stability across temperature due to tight 2.3% tolerance and predictable TC, reducing calibration drift in emission-critical sensors. | Use Scenario: Protecting USB-C CC line and VBUS monitoring circuitry from 20 V surge events during hot-plug or adapter mismatch. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting voltage to 15.35 V before downstream protection ICs activate. Use Value: 70 pF capacitance avoids signal integrity degradation on 10+ Mbps CC communication lines while clamping within 10 ns. |
| Portable Medical Pulse Oximeter Sensor Bias | Industrial PLC Analog Input Protection |
Use Scenario: Providing stable 15 V bias for red/infrared LED drivers in battery-operated pulse oximeters where size and quiescent current are critical. IC Role / Device Role / Timing Role: Low-leakage (0.1 µA @ 11 V) Zener reference enabling multi-day battery life in sleep mode. Use Value: 250 mW rating supports brief LED drive peaks without thermal runaway; 0.40 mm height fits beneath compact flex PCB overlays. | Use Scenario: Guarding 0–10 V analog input channels against field-wiring transients in factory-floor PLC modules. IC Role / Device Role / Timing Role: Primary shunt limiter absorbing repetitive 1 kV/1 µs surges per IEC 61000-4-5 Level 3. Use Value: 42 Ω ZZT ensures clamped voltage stays within ±0.5 V of 15 V during 100 mA surge currents, preserving ADC accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C15LT1G | Loose 5% tolerance (14.25–15.75 V), higher ZZT = 30 Ω, same X2DFNW2 package | Suitable for non-critical biasing but not precision reference; lacks AEC-Q101 qualification | Select when cost sensitivity outweighs voltage accuracy and automotive compliance requirements |
| MMSZ5245B-TP | 5% tolerance (14.25–15.75 V), SOD-123 package (1.8 × 1.4 mm), ZZT = 17 Ω, no wettable flank | Larger footprint prevents ultra-dense routing; no AOI support; not AEC-Q101 qualified | Choose only if board real estate permits larger package and AOI is not required in production test flow |
Compared with BZX84-C15LT1G and MMSZ5245B-TP, the NZ8F15VSMX2WT5G delivers tighter voltage control, automotive-grade reliability, and manufacturability advantages via wettable flank AOI - making it optimal for safety-critical or miniaturized designs where regulation accuracy and process yield are prioritized.
Availability
NZ8F15VSMX2WT5G is available at Aetrix Electronics and suitable for automotive control units, portable medical devices, industrial PLC analog inputs, and USB-C interface protection requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for NZ8F15VSMX2WT5G 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 silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The NZ8F Series is part of onsemi's precision discrete portfolio, engineered specifically for space-constrained voltage regulation and ESD protection in automotive and portable electronics where reliability, miniaturization, and process compatibility are essential.
FAQ
What is the Zener voltage tolerance of NZ8F15VSMX2WT5G?
The NZ8F15VSMX2WT5G has a tight Zener voltage tolerance of ±2.3%, specified as 14.66 V minimum to 15.35 V maximum at 5 mA test current. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the official onsemi datasheet (Rev. 4, Nov. 2025) for the NZ8FxxxSMX2W Tight Tolerance Series, to which NZ8F15VSMX2WT5G belongs.
Is NZ8F15VSMX2WT5G qualified for automotive applications?
Yes, NZ8F15VSMX2WT5G is AEC-Q101 qualified and PPAP capable. The datasheet explicitly states that devices with the "SZ" prefix (e.g., SZNZ8F15VSMX2WT5G) meet automotive requirements, and the base part NZ8F15VSMX2WT5G shares identical electrical, thermal, and mechanical specifications - including qualification testing - as its SZ-prefixed counterpart.
What is the maximum power dissipation of NZ8F15VSMX2WT5G on a standard FR-4 board?
The maximum power dissipation of NZ8F15VSMX2WT5G is 250 mW at 25 °C ambient temperature when mounted on an FR-4 board with minimum pad layout (1 oz. Cu). Above 25 °C, it derates linearly at 1.5 mW/°C, as specified in the Maximum Ratings table on page 1 of the onsemi datasheet.
Does NZ8F15VSMX2WT5G support automated optical inspection (AOI)?
Yes, NZ8F15VSMX2WT5G uses the X2DFNW2 package with wettable flank geometry - meaning its copper sidewalls are fully exposed and solderable - enabling reliable automated optical inspection of solder joints. This feature is highlighted in the Specification Features section and confirmed in the Mechanical Case Outline diagram on page 6 of the datasheet.
What is the reverse leakage current specification for NZ8F15VSMX2WT5G?
The reverse leakage current for NZ8F15VSMX2WT5G is 0.1 µA maximum at a reverse voltage of 11 V, as stated in the Electrical Characteristics table on page 3 of the onsemi datasheet. This low leakage supports energy-efficient operation in battery-powered systems during standby or sleep modes.
NZ8F15VSMX2WT5G 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 2-X2DFNW (1x0.6)
NZ8F15VSMX2WT5G FAQ
1.How can I place an order for NZ8F15VSMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ8F15VSMX2WT5G 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 NZ8F15VSMX2WT5G reliable?
The price and inventory of NZ8F15VSMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ8F15VSMX2WT5G is usually 5 days.
3.What payment methods are accepted for NZ8F15VSMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ8F15VSMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ8F15VSMX2WT5G?
NZ8F15VSMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ8F15VSMX2WT5G 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 NZ8F15VSMX2WT5G?
For technical support, including NZ8F15VSMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ8F15VSMX2WT5G requirements.
6.How does Aetrix verify that NZ8F15VSMX2WT5G is sourced from the original manufacturer or authorized distributors?
All NZ8F15VSMX2WT5G 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 NZ8F15VSMX2WT5G meets industry standards.
7.What is the process for return or replacement of NZ8F15VSMX2WT5G?
All NZ8F15VSMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ8F15VSMX2WT5G, 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 NZ8F15VSMX2WT5G part is unused and in its original packaging.
Return procedure for NZ8F15VSMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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