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onsemi NZ8F4V7SMX2WT5G
- Part No.:
- NZ8F4V7SMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
NZ8F4V7SMX2WT5G.pdf
- Description:
- DIODE ZENER 4.7V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:2,478
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Product details
Overview
NZ8F4V7SMX2WT5G from onsemi is a tight-tolerance Zener diode delivering 4.59 V to 4.81 V reverse breakdown voltage at 5 mA test current, with 100 Ω maximum dynamic impedance and 2 µA leakage at 1 V reverse bias, packaged in X2DFNW2 (0402) wettable flank for AOI-compatible PCB assembly in space-constrained portable electronics.
For engineers reviewing the NZ8F4V7SMX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include ±2.2% Zener voltage tolerance, 250 mW power dissipation on FR-4 with 1 oz. Cu, 0.40 mm body height, AEC-Q101 qualification eligibility via SZ prefix, and 150 pF capacitance at 0 V bias for ESD-sensitive signal line clamping.
Technical Context
This device operates as a unidirectional voltage reference and transient clamp, leveraging silicon PN junction Zener breakdown with temperature coefficient optimized for stability across −65 °C to +150 °C junction range. Its low 0.40 mm profile and wettable flank geometry support automated optical inspection and high-density routing in mobile and automotive control units.
The NZ8F4V7SMX2WT5G exhibits 150 pF junction capacitance at 0 V and 1 MHz, enabling effective high-frequency noise suppression, while maintaining 100 Ω dynamic impedance at 5 mA to ensure stable regulation under moderate load transients in low-power sensor interfaces and I/O protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 4.59 V to 4.81 V @ IZT = 5 mA - defines precise clamping threshold for 4.7 V nominal rail protection |
| Power Dissipation | 250 mW @ TA = 25 °C on FR-4 (1 oz. Cu, min pad) - sets thermal derating baseline for compact layouts |
| Zener Impedance | ≤100 Ω @ IZT = 5 mA - ensures minimal voltage shift under dynamic load changes |
| Leakage Current | ≤2 µA @ VR = 1 V - guarantees low standby power loss in battery-powered systems |
| Junction Capacitance | 150 pF @ VR = 0 V, f = 1 MHz - supports RF filtering and ESD transient attenuation on data lines |
| Package | X2DFNW2 (Case 711BG), 0402 inch (1.00 × 0.60 × 0.37 mm) - enables 0.65 mm pitch routing and AOI compatibility |
| Temperature Range | −65 °C to +150 °C - meets extended environmental requirements for under-hood automotive modules |
Pinout & Package
X2DFNW2 surface-mount package with 2-terminal configuration: ultra-low-profile (0.37 mm max height), wettable flank side walls for solder joint inspection, and industry-standard 0402 footprint (1.00 mm × 0.60 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked) | Cathode | Connected to regulated output or protected node; polarity must be observed for correct clamping direction |
| 2 | Anode | Connected to ground or lower-potential reference; forms forward-biased path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener voltage tolerance | ±2.2% (4.59–4.81 V) - reduces design margin needed for 4.7 V system rails |
| Wettable flank package | X2DFNW2 with solderable side walls - enables reliable AOI detection of solder fillet integrity |
| Low-profile height | 0.40 mm max - allows stacking under shields and placement near tall components |
| AEC-Q101 readiness | SZ-prefix variant available - supports automotive qualification pathways without redesign |
| Pb-Free / RoHS compliance | Halogen-free, BFR-free construction - satisfies global environmental compliance and reflow profile requirements |
Applications
| USB Data Line Protection | Automotive Sensor Reference |
|---|---|
Use Scenario: Clamping ESD transients on USB 2.0 D+ and D− lines in portable chargers and accessories. IC Role / Device Role / Timing Role: Unidirectional Zener clamp absorbing ±8 kV contact discharge per IEC 61000-4-2. Use Value: 150 pF capacitance minimizes signal integrity impact while 4.7 V breakdown aligns with USB PHY voltage limits. | Use Scenario: Providing stable 4.7 V reference for analog sensor signal conditioning in engine control modules. IC Role / Device Role / Timing Role: Precision voltage reference and overvoltage protector for bridge sensor excitation circuitry. Use Value: ±2.2% tolerance ensures <±0.1 V error in 4.7 V reference, critical for 12-bit ADC accuracy. |
| Smartphone Power Rail Clamp | Industrial IoT Node I/O Protection |
Use Scenario: Protecting PMIC-controlled 4.7 V LDO outputs from load dump and coupling spikes in handheld devices. IC Role / Device Role / Timing Role: Secondary overvoltage clamp backing up primary regulator feedback loop. Use Value: 250 mW rating sustains short-duration surges without thermal runaway in 0402 footprint. | Use Scenario: Guarding RS-485 transceiver I/O pins against induced surges in factory automation gateways. IC Role / Device Role / Timing Role: Fast-response transient voltage suppressor on differential bus lines. Use Value: Low 100 Ω Zener impedance maintains clamping voltage stability during fast 10/1000 µs transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B4V7,115 | 4.7 V ±5%, SOD-323 package (1.7 × 1.3 mm), 300 mW rating | Larger footprint, higher power, no wettable flank | Select when higher surge energy handling is required and board area permits larger package |
| MMSZ4702T1G | 4.7 V ±5%, SOD-123 package (3.7 × 1.6 mm), 500 mW rating | Higher power, non-wettable flank, wider tolerance | Choose for cost-sensitive industrial designs where AOI is not mandated and layout space allows |
Compared with NZ8F4V7SMX2WT5G, BZX384-B4V7 offers greater surge capability but lacks wettable flank and tight tolerance; MMSZ4702T1G provides higher power and lower cost but occupies >3× the board area and sacrifices AOI compatibility and precision.
Availability
NZ8F4V7SMX2WT5G is available at Aetrix Electronics and suitable for cellular phone front-end protection, automotive body control module I/O clamping, and handheld medical device power rail stabilization requiring stable component supply and consistent parametric performance across production lots.
Supply support for NZ8F4V7SMX2WT5G 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 supplier of energy-efficient semiconductor solutions, specializing in automotive, industrial, cloud, and IoT applications with emphasis on reliability and sustainability.
The NZ8F Series is designed specifically for high-density, AOI-compatible voltage regulation and transient suppression in portable and automotive electronics, prioritizing tight tolerance, low profile, and process-ready packaging.
FAQ
What is the Zener voltage tolerance of NZ8F4V7SMX2WT5G?
NZ8F4V7SMX2WT5G has a tight Zener voltage tolerance of ±2.2%, specified as 4.59 V minimum to 4.81 V maximum at 5 mA test current. This tighter tolerance than standard-series Zeners (e.g., NZ8F4V7MX2WT5G at ±5%) enables more accurate voltage clamping in precision 4.7 V rail applications without additional calibration. The value is measured and guaranteed per onsemi's Electrical Characteristics table on page 3 of the datasheet.
Does NZ8F4V7SMX2WT5G support automated optical inspection (AOI)?
Yes, NZ8F4V7SMX2WT5G uses the X2DFNW2 package with wettable flank side walls, explicitly designed for optimal AOI performance. The solderable flank surfaces allow machine vision systems to verify solder fillet formation and joint integrity-critical for high-reliability mobile and automotive assemblies. This feature is documented in the "Specification Features" section of the datasheet and confirmed by the mechanical drawing (Case 711BG).
What is the maximum junction temperature rating for NZ8F4V7SMX2WT5G?
NZ8F4V7SMX2WT5G has a junction and storage temperature range of −65 °C to +150 °C, as stated in the Maximum Ratings table on page 1 of the datasheet. This wide range supports operation in under-hood automotive environments and industrial edge nodes. Derating begins above 25 °C at 1.5 mW/°C for the 250 mW FR-4 (min pad) configuration, ensuring safe thermal margins across ambient conditions.
Is NZ8F4V7SMX2WT5G qualified for automotive use?
NZ8F4V7SMX2WT5G itself is not AEC-Q101 qualified, but its SZ-prefixed variant (SZNZ8F4V7SMX2WT5G) is AEC-Q101 qualified and PPAP capable, as noted in the datasheet's "Specification Features" and "Device Marking Information" sections. Engineers targeting automotive applications should specify the SZ prefix to ensure qualification compliance; the base part shares identical electrical and mechanical specs but lacks formal automotive certification documentation.
What is the forward voltage specification for NZ8F4V7SMX2WT5G?
NZ8F4V7SMX2WT5G has a maximum forward voltage of 0.9 V at 10 mA forward current, consistent across the entire NZ8F series per the datasheet's Electrical Characteristics notes on pages 2 and 3. This parameter is relevant for forward-bias fault conditions and helps determine conduction losses when used in bidirectional protection schemes with series diodes. It is not a typical operating condition but a guaranteed limit for design margining.
NZ8F4V7SMX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.7 V
- Tolerance:
- ±2.34%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 1 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)
NZ8F4V7SMX2WT5G FAQ
1.How can I place an order for NZ8F4V7SMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ8F4V7SMX2WT5G 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 NZ8F4V7SMX2WT5G reliable?
The price and inventory of NZ8F4V7SMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ8F4V7SMX2WT5G is usually 5 days.
3.What payment methods are accepted for NZ8F4V7SMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ8F4V7SMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ8F4V7SMX2WT5G?
NZ8F4V7SMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ8F4V7SMX2WT5G 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 NZ8F4V7SMX2WT5G?
For technical support, including NZ8F4V7SMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ8F4V7SMX2WT5G requirements.
6.How does Aetrix verify that NZ8F4V7SMX2WT5G is sourced from the original manufacturer or authorized distributors?
All NZ8F4V7SMX2WT5G 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 NZ8F4V7SMX2WT5G meets industry standards.
7.What is the process for return or replacement of NZ8F4V7SMX2WT5G?
All NZ8F4V7SMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ8F4V7SMX2WT5G, 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 NZ8F4V7SMX2WT5G part is unused and in its original packaging.
Return procedure for NZ8F4V7SMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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