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onsemi NZ8F5V1MX2WT5G
- Part No.:
- NZ8F5V1MX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
NZ8F5V1MX2WT5G.pdf
- Description:
- DIODE ZENER 5.1V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:7,928
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Product details
Overview
NZ8F5V1MX2WT5G from onsemi is a 250 mW, 5.1 V ±5% tolerance Zener diode in X2DFNW2 (0402) wettable flank package, designed for precision voltage regulation and overvoltage protection in space-constrained PCBs. It delivers 130 pF capacitance at 0 V, 2 µA leakage at 1.5 V reverse bias, and 80 Ω dynamic impedance at 5 mA test current - ideal for ESD-sensitive power rail clamping in portable electronics.
For engineers reviewing the NZ8F5V1MX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q101-qualified automotive suitability, low 0.40 mm body height, AOI-compatible wettable flank leads, and tight thermal resistance (415 °C/W on FR-4 with minimum pad).
Technical Context
This device operates as a unidirectional Zener regulator with cathode-anode polarity, optimized for stable reverse-bias breakdown at nominal 5.1 V. Its electrical behavior is defined at IZT = 5 mA, with guaranteed VZ between 4.85 V and 5.36 V and temperature coefficient of ±9 mV/°C across −55 °C to +150 °C junction range.
The X2DFNW2 package enables high-density placement and automated optical inspection via solderable flank sidewalls. Thermal performance depends on PCB layout: 415 °C/W with minimal 1 oz. Cu pad (Note 1), improving to 247 °C/W with 150 mm² copper area (Note 2), supporting reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.85 V to 5.36 V @ IZT = 5 mA - defines clamping threshold for 5 V rail protection |
| Zener Impedance (ZZT) | 80 Ω max @ IZT = 5 mA - ensures stable regulation under dynamic load transients |
| Leakage Current (IR) | 2 µA max @ VR = 1.5 V - minimizes standby power loss in battery-powered systems |
| Capacitance (C) | 130 pF @ VR = 0 V, f = 1 MHz - low enough to avoid signal integrity issues in high-speed interfaces |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C (derates 1.5 mW/°C above) - sets maximum continuous clamping energy |
| Junction Temp Range | −65 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
| Package | X2DFNW2 (0402, 1.00 × 0.60 × 0.37 mm) - enables ultra-compact placement and AOI compatibility |
Pinout & Package
The NZ8F5V1MX2WT5G uses the X2DFNW2 surface-mount package (Case 711BG), featuring two terminals in a 0402-inch footprint with wettable flank sidewalls for reliable solder joint inspection. Total body height is 0.40 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to regulated voltage rail; reverse-biased during clamping operation |
| 2 (Anode) | Zener anode terminal | Connected to ground or lower-potential reference; completes clamping current path |
Key Features
| Feature | Design Value |
|---|---|
| Wettable Flank Leads | Enables 100% automated optical inspection (AOI) of solder fillets without X-ray |
| AEC-Q101 Qualified | Validated for automotive applications including engine control units and ADAS sensors |
| Pb-Free / RoHS Compliant | Meets global environmental regulations with halogen-free, BFR-free construction |
| Low Profile Height | 0.40 mm max - allows stacking under connectors or beneath shields in thin-profile devices |
| Standard Tolerance Series | ±5% VZ tolerance (vs. ±2% in SMX variants) - balances cost and precision for non-critical rails |
Applications
| Smartphone Power Rail Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Clamping transient spikes on 5 V USB interface power lines in compact smartphones. IC Role / Device Role / Timing Role: Unidirectional Zener clamp absorbing >100 V ESD events per IEC 61000-4-2 Level 4. Use Value: 130 pF capacitance avoids signal degradation on high-speed USB 2.0 D+/D− lines while maintaining 5.1 V rail integrity. | Use Scenario: Regulating and stabilizing 5 V supply to microcontrollers in door module ECUs. IC Role / Device Role / Timing Role: Precision shunt regulator providing reference stability across −40 °C to +125 °C ambient. Use Value: AEC-Q101 qualification and 150 °C junction rating ensure reliability in under-dash mounting locations. |
| Wearable Sensor Node | Industrial IoT Gateway |
Use Scenario: Overvoltage protection for coin-cell–powered heart rate monitor analog front-end. IC Role / Device Role / Timing Role: Low-leakage (2 µA @ 1.5 V) Zener preventing battery drain during sleep mode. Use Value: 250 mW power rating and 0.40 mm height enable integration into sub-3 mm thick wearable PCBs. | Use Scenario: Input rail conditioning for isolated RS-485 transceivers in factory automation gateways. IC Role / Device Role / Timing Role: Secondary clamp protecting primary TVS from sustained overvoltage beyond data sheet limits. Use Value: 80 Ω ZZT ensures fast response to 10–90% transients without oscillation or overshoot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C5V1 | 5.1 V ±5%, SOD-523 package (1.2 × 0.8 × 0.6 mm), 300 mW PD, 150 pF C | Larger footprint, higher capacitance, no wettable flank or AEC-Q101 rating | Choose for cost-sensitive consumer designs where AOI and automotive compliance are not required |
| NZ8F5V1SMX2WT5G | Same package and VZ range but ±2% tolerance, 5.1 V nominal, tighter 4.98–5.22 V spread | Higher precision needed for reference voltage generation or ADC biasing | Choose when 5 V rail stability must remain within ±0.12 V across temperature and production lot |
Compared with BZX584-C5V1, NZ8F5V1MX2WT5G offers superior manufacturability (wettable flank), automotive qualification, and smaller size; compared with NZ8F5V1SMX2WT5G, it trades tighter tolerance for lower unit cost in non-critical clamping roles.
Availability
NZ8F5V1MX2WT5G is available at Aetrix Electronics and suitable for smartphone power rail protection, automotive body control modules, and wearable sensor nodes requiring stable component supply with full traceability and lifecycle management.
Supply support for NZ8F5V1MX2WT5G 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 (Semiconductor Components Industries, LLC) 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 Zener diode portfolio, engineered specifically for miniaturized, high-reliability voltage regulation in space-constrained and thermally demanding environments.
FAQ
What is the Zener voltage tolerance of NZ8F5V1MX2WT5G?
The NZ8F5V1MX2WT5G has a standard tolerance of ±5% around its nominal 5.1 V Zener voltage, resulting in a guaranteed breakdown range of 4.85 V to 5.36 V at IZT = 5 mA and TA = 25 °C. This tolerance is specified in the Electrical Characteristics table on page 2 of the official onsemi datasheet (Rev. 4, November 2025). The NZ8F5V1MX2WT5G is part of the MX2W standard tolerance series, distinct from the tighter ±2% SMX2W variants.
Is NZ8F5V1MX2WT5G qualified for automotive use?
Yes, NZ8F5V1MX2WT5G is AEC-Q101 qualified and PPAP capable when ordered with the SZ prefix (e.g., SZNZ8F5V1MX2WT5G). The base part NZ8F5V1MX2WT5G shares identical electrical and mechanical specifications and is widely used in automotive body control modules and infotainment systems. Its 150 °C maximum junction temperature and robust thermal derating profile support under-hood and cabin applications.
What is the maximum reverse leakage current for NZ8F5V1MX2WT5G?
The maximum reverse leakage current (IR) for NZ8F5V1MX2WT5G is 2 µA at VR = 1.5 V and TA = 25 °C, as confirmed in the Electrical Characteristics table on page 2 of the onsemi datasheet. This low leakage supports extended battery life in always-on wearable and IoT sensor nodes where the NZ8F5V1MX2WT5G serves as a standby rail protector.
Does NZ8F5V1MX2WT5G have wettable flank leads?
Yes, NZ8F5V1MX2WT5G uses the X2DFNW2 package with wettable flank leads, explicitly highlighted in the datasheet's "Specification Features" section. This design enables full automated optical inspection (AOI) of solder joints on both top and side surfaces, eliminating the need for X-ray verification in high-volume manufacturing of smartphones and automotive PCBs using NZ8F5V1MX2WT5G.
What is the thermal resistance (RJA) of NZ8F5V1MX2WT5G on a standard FR-4 board?
The junction-to-ambient thermal resistance (RJA) of NZ8F5V1MX2WT5G is 415 °C/W when mounted on an FR-4 board with minimum pad (1 oz. Cu), per Note 1 in the Maximum Ratings table. With a larger 150 mm² copper area (1 oz. Cu), RJA improves to 247 °C/W (Note 2). These values directly impact safe operating power dissipation and must be applied in thermal design for any application using NZ8F5V1MX2WT5G.
NZ8F5V1MX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.1 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 1.5 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)
NZ8F5V1MX2WT5G FAQ
1.How can I place an order for NZ8F5V1MX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ8F5V1MX2WT5G 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 NZ8F5V1MX2WT5G reliable?
The price and inventory of NZ8F5V1MX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ8F5V1MX2WT5G is usually 5 days.
3.What payment methods are accepted for NZ8F5V1MX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ8F5V1MX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ8F5V1MX2WT5G?
NZ8F5V1MX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ8F5V1MX2WT5G 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 NZ8F5V1MX2WT5G?
For technical support, including NZ8F5V1MX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ8F5V1MX2WT5G requirements.
6.How does Aetrix verify that NZ8F5V1MX2WT5G is sourced from the original manufacturer or authorized distributors?
All NZ8F5V1MX2WT5G 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 NZ8F5V1MX2WT5G meets industry standards.
7.What is the process for return or replacement of NZ8F5V1MX2WT5G?
All NZ8F5V1MX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ8F5V1MX2WT5G, 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 NZ8F5V1MX2WT5G part is unused and in its original packaging.
Return procedure for NZ8F5V1MX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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