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onsemi NZ8F16VMX2WT5G
- Part No.:
- NZ8F16VMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
NZ8F16VMX2WT5G.pdf
- Description:
- DIODE ZENER 16V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:7,970
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Product details
Overview
NZ8F16VMX2WT5G from onsemi is a 250 mW, 16 V nominal Zener diode in X2DFNW2 (0402) wettable flank package, with ±5% tolerance, 50 Ω dynamic impedance at 5 mA, and 0.1 µA leakage at 12 V reverse bias-designed for precision voltage regulation and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the NZ8F16VMX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage accuracy (15.2–16.8 V), low-profile 0.40 mm height, AOI-compatible wettable flanks, and AEC-Q101 qualification eligibility via SZ-prefix variants.
Technical Context
This unidirectional Zener diode operates in reverse breakdown to clamp transient overvoltages and stabilize reference nodes. Its 5 mA test current (IZT) and 50 Ω dynamic impedance (ZZT) ensure stable regulation under moderate load variations, while the 0.1 µA leakage at VR = 12 V supports low-power standby integrity.
The X2DFNW2 package enables high-density PCB layouts and automated optical inspection via solderable side walls. Thermal resistance of 415 °C/W (FR-4, minimum pad) and 247 °C/W (FR-4, 150 mm² copper) define power derating behavior, with maximum junction temperature rated at +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.2 V min to 16.8 V max at IZT = 5 mA - defines clamping threshold range for overvoltage protection |
| Power Dissipation (PD) | 250 mW on FR-4 (1 oz Cu, minimum pad) - sets continuous operating limit without forced cooling |
| Zener Impedance (ZZT) | 50 Ω max at IZT = 5 mA - determines regulation stiffness against current transients |
| Leakage Current (IR) | 0.1 µA max at VR = 12 V - ensures minimal standby power loss in battery-powered systems |
| Capacitance (C) | 65 pF max at VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and signal integrity |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - defines conduction drop when used in forward-biased ESD paths |
| Package | X2DFNW2 (0402, 1.00 × 0.60 × 0.37 mm) - enables ultra-compact placement and AOI-compatible solder joints |
Pinout & Package
The NZ8F16VMX2WT5G uses a 2-terminal X2DFNW2 surface-mount package with wettable flank sidewalls. Cathode is marked with a band on the top surface; anode is unmarked. The device has no internal die bonding wire or substrate routing-both terminals connect directly to the silicon junction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to regulated node or supply rail; reverse-biased during clamping operation |
| 2 (Anode) | Zener anode terminal | Connected to ground or lower-potential reference; completes reverse-bias path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Wettable Flank Package | Enables reliable automated optical inspection (AOI) of solder fillets on 0402 footprint without X-ray |
| Low Body Height | 0.40 mm max - allows stacking under shields or beneath connectors in ultra-thin modules |
| AEC-Q101 Eligibility | SZ-prefix variants qualified per AEC-Q101 - supports automotive control unit designs requiring stress-tested discretes |
| Pb-Free / RoHS Compliant | Halogen-free, BFR-free construction - meets IPC-J-STD-020 moisture sensitivity level 1 (MSL1) |
| Tight Thermal Resistance Control | 415 °C/W junction-to-ambient (min pad) - enables predictable thermal design in thermally isolated PCB zones |
Applications
| Smartphone Power Rail Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Clamping 12 V supply rail surges caused by load dump or alternator transients in smartphone accessory adapters. IC Role / Device Role / Timing Role: Voltage regulator and overvoltage protector placed between input connector and DC-DC converter input. Use Value: Prevents damage to downstream PMICs using 16 V Zener threshold aligned with ISO 7637-2 Pulse 5a limits. | Use Scenario: Stabilizing microcontroller I/O reference voltage in BCM sub-modules exposed to 12 V battery fluctuations. IC Role / Device Role / Timing Role: Precision shunt reference providing stable 16 V bias for analog sensor conditioning circuits. Use Value: Maintains ADC accuracy across −40 °C to +125 °C ambient via <±0.01 %/°C TC and low leakage. |
| Wireless Earbud Charging Case | Industrial IoT Sensor Node |
Use Scenario: Protecting Li-ion charging IC inputs from voltage spikes during USB-C hot-plug events in compact earbud cases. IC Role / Device Role / Timing Role: Transient voltage suppressor placed at USB input filter stage before linear charger. Use Value: Fits within 1.0 × 0.6 mm footprint while delivering 250 mW clamping capacity-critical for sub-20 mm³ form factors. | Use Scenario: Regulating auxiliary 16 V bias rail for RS-485 transceivers in battery-backed industrial sensors. IC Role / Device Role / Timing Role: Shunt regulator maintaining stable supply for communication ICs during brownout conditions. Use Value: Delivers 0.1 µA leakage at 12 V reverse bias-extending 10-year battery life in remote monitoring deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C16LT1G | Same 16 V nominal, ±5% tolerance, but SOD-523 package (1.3 × 0.85 mm); 350 mW PD; 70 Ω ZZT | Larger footprint and higher thermal resistance (500 °C/W); less suitable for ultra-dense 0402 layouts | Select when higher power margin is needed and board area permits larger package |
| MMSZ4687T1G | 16 V nominal, ±5%, SOD-123 package (3.7 × 1.6 mm); 500 mW PD; 110 Ω ZZT | 3× larger footprint; higher leakage (1 µA @ 12 V); not AOI-optimized | Choose for cost-sensitive, non-AOI production where thermal headroom >500 mW is required |
Compared with BZX584C16LT1G and MMSZ4687T1G, NZ8F16VMX2WT5G offers the smallest footprint (0402), lowest profile (0.40 mm), and wettable flanks for AOI-making it optimal for miniaturized consumer and automotive modules where space and inspection reliability are critical.
Availability
NZ8F16VMX2WT5G is available at Aetrix Electronics and suitable for smartphone power rail protection, automotive body control modules, and wireless earbud charging case designs requiring stable component supply and consistent Zener voltage performance.
Supply support for NZ8F16VMX2WT5G 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 manufacturer specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NZ8F Series is part of onsemi's precision discrete portfolio, engineered specifically for space-constrained voltage regulation and transient suppression in portable and automotive electronics.
FAQ
What is the Zener voltage tolerance of NZ8F16VMX2WT5G?
The NZ8F16VMX2WT5G has a standard tolerance of ±5%, resulting in a guaranteed Zener voltage range of 15.2 V to 16.8 V at 5 mA test current (IZT). This tolerance is confirmed in the Electrical Characteristics table on page 2 of the official onsemi datasheet. The NZ8F16VMX2WT5G does not belong to the tight-tolerance (S) series, which would specify ±2.5%.
Is NZ8F16VMX2WT5G suitable for automotive applications?
Yes-NZ8F16VMX2WT5G is eligible for automotive use via its SZ-prefix variant (SZNZ8F16VMX2WT5G), which is AEC-Q101 qualified and PPAP capable. While the base NZ8F16VMX2WT5G part itself is not certified, its identical electrical and mechanical specifications allow direct substitution in automotive designs when sourced with the SZ prefix and appropriate process controls.
What is the maximum reverse leakage current for NZ8F16VMX2WT5G?
The maximum reverse leakage current (IR) for NZ8F16VMX2WT5G is 0.1 µA at VR = 12 V, as specified in the Electrical Characteristics table. This low leakage supports extended battery life in always-on portable devices and ensures minimal loading on high-impedance reference nodes in precision analog circuits.
Does NZ8F16VMX2WT5G have wettable flanks, and why does it matter?
Yes-NZ8F16VMX2WT5G uses the X2DFNW2 package with wettable flank sidewalls, enabling full-solder-joint inspection via automated optical inspection (AOI) without requiring X-ray. This feature improves manufacturing yield and field reliability in high-volume 0402 assembly, especially critical for consumer and automotive electronics where solder joint integrity must be verified non-destructively.
What is the thermal resistance (RJA) of NZ8F16VMX2WT5G on a standard FR-4 board?
The thermal resistance from junction-to-ambient (RJA) for NZ8F16VMX2WT5G is 415 °C/W when mounted on an FR-4 board with minimum pad size and 1 oz copper. With a larger 150 mm² copper area, RJA improves to 247 °C/W. These values directly determine safe power derating curves and must be applied in thermal design for sustained 250 mW operation.
NZ8F16VMX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 50 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 12 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)
NZ8F16VMX2WT5G FAQ
1.How can I place an order for NZ8F16VMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ8F16VMX2WT5G 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 NZ8F16VMX2WT5G reliable?
The price and inventory of NZ8F16VMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ8F16VMX2WT5G is usually 5 days.
3.What payment methods are accepted for NZ8F16VMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ8F16VMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ8F16VMX2WT5G?
NZ8F16VMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ8F16VMX2WT5G 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 NZ8F16VMX2WT5G?
For technical support, including NZ8F16VMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ8F16VMX2WT5G requirements.
6.How does Aetrix verify that NZ8F16VMX2WT5G is sourced from the original manufacturer or authorized distributors?
All NZ8F16VMX2WT5G 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 NZ8F16VMX2WT5G meets industry standards.
7.What is the process for return or replacement of NZ8F16VMX2WT5G?
All NZ8F16VMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ8F16VMX2WT5G, 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 NZ8F16VMX2WT5G part is unused and in its original packaging.
Return procedure for NZ8F16VMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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