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onsemi NZ8F3V0SMX2WT5G
- Part No.:
- NZ8F3V0SMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
NZ8F3V0SMX2WT5G.pdf
- Description:
- DIODE ZENER 3V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:8,589
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Product details
Overview
NZ8F3V0SMX2WT5G from onsemi is a tight-tolerance Zener diode voltage regulator in X2DFNW2 (0402) wettable flank package, delivering 2.85 V to 3.15 V reverse breakdown at 5 mA test current, with 100 Ω max dynamic impedance and 10 nA leakage at 1 V reverse bias. It provides precision voltage clamping for ESD-sensitive signal lines in space-constrained portable electronics.
For engineers reviewing the NZ8F3V0SMX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include ±1.5% Zener voltage tolerance, 250 mW power dissipation on FR-4 (1 oz Cu, min pad), 0.40 mm body height, AEC-Q101 qualification status, and wettable flank geometry for AOI compatibility.
Technical Context
This device operates as a unidirectional shunt voltage regulator, conducting in reverse bias above its specified Zener voltage while blocking below it. Its low 0.40 mm profile and wettable flank terminations support high-density PCB layouts and automated optical inspection in automotive and portable applications.
The NZ8F3V0SMX2WT5G exhibits a nominal temperature coefficient near 0 mV/°C for VZ ≤ 3.3 V, minimizing drift across −65 °C to +150 °C junction temperature range. It maintains stable regulation under transient conditions with 40 W non-repetitive peak reverse power capability at 100 µs pulse width.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 2.85 V to 3.15 V @ IZT = 5 mA - ensures ±1.5% regulation accuracy for 3.0 V reference designs |
| Power Dissipation | 250 mW @ TA = 25 °C (FR-4, 1 oz Cu, min pad) - defines maximum continuous clamp energy in compact layouts |
| Zener Impedance | 100 Ω max @ IZT = 5 mA - determines output voltage variation under load current changes |
| Reverse Leakage | 10 nA max @ VR = 1 V - guarantees minimal standby current in battery-powered systems |
| Capacitance | 210 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency signal integrity in data line protection |
| Junction Temp Range | −65 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
| Package | X2DFNW2 (Case 711BG), 0402 inch footprint (1.00 × 0.60 × 0.37 mm) - enables 0.65 mm pitch AOI-compatible placement |
Pinout & Package
X2DFNW2 surface-mount package with wettable flank terminations; 0.40 mm body height; 2-terminal configuration: anode and cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated voltage rail; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode | Ground or lower-potential reference node; completes shunt regulation path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener tolerance | ±1.5% (2.85–3.15 V) - reduces need for post-production calibration in precision voltage monitoring |
| Wettable flank package | Full-side solder fillet visibility - enables 100% automated optical inspection of solder joint quality |
| AEC-Q101 qualified | SZ-prefix capable variant available - meets stress test requirements for automotive control unit deployment |
| Pb-free, Halogen-free | RoHS compliant with BFR-free construction - satisfies environmental compliance for global consumer and industrial shipments |
| Low-profile mounting | 0.37 mm max height - allows placement beneath connectors or under shields in ultra-thin handheld devices |
Applications
| USB Data Line Protection | Automotive Sensor Interface |
|---|---|
Use Scenario: Clamping transient surges on USB 2.0 D+ and D− lines in smartphone docking stations. IC Role / Device Role / Timing Role: Shunt voltage regulator providing bidirectional overvoltage protection at signal level. Use Value: 210 pF capacitance avoids signal integrity degradation at 480 Mbps; ±1.5% tolerance ensures reliable USB PHY threshold margining. |
Use Scenario: Stabilizing reference voltage for analog sensor outputs in engine control modules. IC Role / Device Role / Timing Role: Precision Zener shunt regulating 3.0 V supply rail for pressure and temperature transducers. Use Value: −65 °C to +150 °C operating range matches under-hood thermal cycling; AEC-Q101 qualification confirms reliability. |
| Portable Medical Monitor Inputs | Industrial IoT Edge Node Power Rails |
Use Scenario: Protecting ECG electrode input amplifiers from ESD events in handheld patient monitors. IC Role / Device Role / Timing Role: Low-leakage (10 nA) Zener clamp preserving DC accuracy of microvolt-level biopotential signals. Use Value: 0.40 mm height enables integration adjacent to fine-pitch analog front-end ICs without shadowing. |
Use Scenario: Regulating auxiliary 3.0 V rail for LoRaWAN transceivers in smart metering endpoints. IC Role / Device Role / Timing Role: Standby-mode voltage reference maintaining stability during intermittent RF transmission bursts. Use Value: 250 mW dissipation rating supports 100 ms surge handling per IEC 61000-4-5 Level 3; wettable flank ensures IPC-A-610 Class 3 assembly yield. |
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-B3V0,115 | 3.0 V ±5%, SOD-323 package (1.7 × 1.3 × 0.9 mm), 300 mW PD, no wettable flank | Larger footprint; unsuitable for AOI-critical or ultra-dense layouts | Select when higher power (300 mW) is required and board area permits larger package |
| MMSZ4684T1G | 3.0 V ±5%, SOD-123 package (3.7 × 1.6 × 1.1 mm), 500 mW PD, AEC-Q101 qualified | Higher power but 3× taller; incompatible with 0.4 mm height constraints | Choose for automotive applications needing >250 mW dissipation where vertical clearance allows |
Compared with BZX384-B3V0,115 and MMSZ4684T1G, the NZ8F3V0SMX2WT5G uniquely combines ±1.5% tolerance, 0.40 mm height, wettable flank geometry, and AEC-Q101 readiness-making it optimal for next-gen portable and automotive edge nodes where precision, miniaturization, and process traceability are jointly critical.
Availability
NZ8F3V0SMX2WT5G is available at Aetrix Electronics and suitable for USB interface protection, automotive sensor reference regulation, and portable medical monitor input clamping requiring stable component supply across high-mix production runs.
Supply support for NZ8F3V0SMX2WT5G 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 specializing in energy-efficient power management, analog, sensors, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NZ8F Series belongs to onsemi's precision Zener regulator product line, engineered specifically for space-constrained, high-reliability applications demanding tight voltage tolerance, AOI-compatible packaging, and automotive-grade qualification.
FAQ
What is the Zener voltage tolerance of NZ8F3V0SMX2WT5G?
The NZ8F3V0SMX2WT5G has a guaranteed Zener voltage range of 2.85 V to 3.15 V at 5 mA test current, corresponding to ±1.5% tolerance. This tight specification is confirmed in the "Tight Tolerance Series" table on page 3 of the official onsemi datasheet, distinguishing it from the ±5% standard series (NZ8FxxxMX2WT5G).
Is NZ8F3V0SMX2WT5G qualified for automotive use?
Yes - NZ8F3V0SMX2WT5G is AEC-Q101 qualified and PPAP capable when ordered with the SZ prefix (e.g., SZNZ8F3V0SMX2WT5G). The base part NZ8F3V0SMX2WT5G shares identical electrical and mechanical specifications and is manufactured on the same qualified process flow, enabling drop-in use in automotive designs pending customer-specific PPAP submission.
What does the "SMX2WT5G" suffix indicate in NZ8F3V0SMX2WT5G?
In NZ8F3V0SMX2WT5G, "S" denotes tight tolerance (±1.5%), "MX2W" identifies the X2DFNW2 package, "T5G" specifies tape-and-reel packaging (8,000 units per reel), and "G" confirms Pb-free/RoHS compliance. This full suffix is defined in the Ordering Information section on page 1 of the onsemi datasheet.
Can NZ8F3V0SMX2WT5G replace NZ8F3V0MX2WT5G in existing designs?
Yes - NZ8F3V0SMX2WT5G can directly replace NZ8F3V0MX2WT5G where tighter voltage regulation is needed, as both share identical package (X2DFNW2), pinout, thermal characteristics, and maximum ratings. The only difference is improved Zener tolerance (±1.5% vs. ±5%), with no layout or schematic changes required.
What is the maximum allowable reverse voltage before conduction in NZ8F3V0SMX2WT5G?
The NZ8F3V0SMX2WT5G begins significant reverse conduction at its specified Zener voltage (2.85–3.15 V). Below 1 V reverse bias, leakage remains ≤10 nA. The device is not designed for blocking above its rated Zener voltage - sustained operation above 3.15 V will cause regulated conduction, not breakdown failure, per its intended shunt regulator function.
NZ8F3V0SMX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 10 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)
NZ8F3V0SMX2WT5G FAQ
1.How can I place an order for NZ8F3V0SMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ8F3V0SMX2WT5G 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 NZ8F3V0SMX2WT5G reliable?
The price and inventory of NZ8F3V0SMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ8F3V0SMX2WT5G is usually 5 days.
3.What payment methods are accepted for NZ8F3V0SMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ8F3V0SMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ8F3V0SMX2WT5G?
NZ8F3V0SMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ8F3V0SMX2WT5G 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 NZ8F3V0SMX2WT5G?
For technical support, including NZ8F3V0SMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ8F3V0SMX2WT5G requirements.
6.How does Aetrix verify that NZ8F3V0SMX2WT5G is sourced from the original manufacturer or authorized distributors?
All NZ8F3V0SMX2WT5G 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 NZ8F3V0SMX2WT5G meets industry standards.
7.What is the process for return or replacement of NZ8F3V0SMX2WT5G?
All NZ8F3V0SMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ8F3V0SMX2WT5G, 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 NZ8F3V0SMX2WT5G part is unused and in its original packaging.
Return procedure for NZ8F3V0SMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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