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onsemi NZ9F3V0ST5G
- Part No.:
- NZ9F3V0ST5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-923
- Datasheet:
-
NZ9F3V0ST5G.pdf
- Description:
- DIODE ZENER 3.1V 250MW SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:8,780
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Product details
Overview
NZ9F3V0ST5G from onsemi is a 3.0 V ±4.0% Zener diode in SOD-923 package, rated for 250 mW steady-state power dissipation at 25°C, with 100 Ω maximum Zener impedance at 5 mA test current and 10 µA maximum reverse leakage at 2.4 V, used for precision voltage regulation and ESD protection in space-constrained portable electronics.
For engineers reviewing the NZ9F3V0ST5G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q101 qualification, 16 kV HBM ESD rating, tight 3.0 V Zener tolerance, low 0.40 mm body height, and SOD-923 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to clamp voltage at 2.94–3.26 V under 5 mA test current. Its thermal resistance is 500 °C/W, enabling stable regulation up to +150 °C junction temperature with derating above 25 °C.
The NZ9F3V0ST5G features Class 3 ESD robustness (>16 kV HBM), Pb-free matte tin lead finish, MSL 1 reflow compatibility (260 °C peak), and void-free thermosetting plastic encapsulation meeting UL 94 V-0 - all validated for automotive and portable consumer applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.94 V min to 3.26 V max @ IZT = 5 mA - defines precise clamping range for 3.0 V rail protection |
| Power Dissipation (PD) | 250 mW @ TA = 25°C - supports continuous regulation in compact handheld PCBs without forced cooling |
| Zener Impedance (ZZT) | 100 Ω max @ IZT = 5 mA - ensures minimal voltage deviation under dynamic load transients |
| Reverse Leakage (IR) | 10 µA max @ VR = 2.4 V - guarantees low standby current in battery-powered systems |
| ESD Rating (HBM) | >16 kV - provides intrinsic system-level ESD immunity without external TVS stacking |
| Package | SOD-923 (Case 514AB) - 1.00 mm × 0.60 mm × 0.40 mm footprint ideal for <1.0 mm² board area allocation |
| Temperature Coefficient | −3.5 mV/°C @ IZT = 5 mA - enables predictable drift compensation in ambient-varying environments |
Pinout & Package
SOD-923 surface-mount package: 2-pin, ultra-compact, anode/cathode marked with microdot orientation per marking diagram; body dimensions 1.00 mm × 0.60 mm × 0.40 mm; Pb-free matte Sn plating; MSL 1 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-biased terminal | Connected to regulated voltage node; polarity critical for correct Zener conduction and clamping direction |
| 2 (Anode) | Forward-biased terminal | Typically tied to ground or lower-potential rail; completes bias path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock testing |
| Tight VZ tolerance (±4.0%) | Reduces need for post-production trimming or binning in precision reference circuits |
| 16 kV HBM ESD rating | Eliminates requirement for discrete ESD protection in front-end I/O lines of portable devices |
| 0.40 mm profile | Enables placement beneath connectors or under narrow shields where vertical clearance is limited to <0.5 mm |
| Pb-free & RoHS-compliant | Meets global environmental compliance mandates without performance trade-offs or solderability degradation |
Applications
| Smartphone Power Rail Protection | Wearable Sensor Reference Clamp |
|---|---|
Use Scenario: Clamping 3.3 V I/O supply against ESD and load-dump transients in LTE modem modules. IC Role / Device Role / Timing Role: Two-terminal shunt regulator providing passive overvoltage protection at point-of-load. Use Value: Prevents latch-up in baseband ICs by limiting transient excursions to ≤3.26 V with sub-100 ns response. |
Use Scenario: Stabilizing ADC reference input in hearable devices operating from coin-cell batteries. IC Role / Device Role / Timing Role: Low-current Zener reference source delivering stable 3.0 V bias for analog front-end circuitry. Use Value: Maintains <±0.5% reference accuracy across −20°C to +70°C due to matched tempco and low leakage. |
| Automotive Body Control Module (BCM) | USB-C Port VBUS Clamp |
Use Scenario: Protecting LIN transceiver supply pins against battery reverse-polarity and jump-start surges. IC Role / Device Role / Timing Role: Fail-safe voltage clamp integrated into 12 V to 3.3 V LDO output stage. Use Value: Survives 1000+ cycles of 24 V surge exposure per AEC-Q101 stress protocols without parameter shift. |
Use Scenario: Limiting VBUS overshoot during hot-plug events in USB-C peripheral dongles. IC Role / Device Role / Timing Role: Secondary clamping element downstream of primary TVS, refining clamping precision. Use Value: Reduces peak VBUS excursion from 22 V to 3.26 V with <1 nJ energy absorption per event. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C3V0LT1G | Same 3.0 V nominal Zener, but 350 mW PD, 60 Ω ZZT, SOD-523 package (1.3 mm × 0.85 mm) | Larger footprint; higher power handling but less suitable for <1.0 mm² constrained zones | Select when higher surge energy absorption is required and board area permits larger package |
| MMSZ4684T1G | 3.0 V Zener, 500 mW PD, 150 Ω ZZT, SOD-123 package (3.7 mm × 1.6 mm) | 3.7× larger footprint; higher leakage (50 µA @ 2.4 V); not AEC-Q101 qualified | Choose for cost-sensitive industrial designs where automotive qualification and miniaturization are not mandatory |
Compared with BZX584C3V0LT1G and MMSZ4684T1G, the NZ9F3V0ST5G offers the smallest PCB footprint and automotive qualification at the expense of lower power rating - making it optimal for next-gen wearables and automotive sensor nodes where space and reliability are non-negotiable.
Availability
NZ9F3V0ST5G is available at Aetrix Electronics and suitable for smartphone power rail protection, wearable sensor reference clamping, and automotive body control module (BCM) designs requiring stable component supply with guaranteed long-term sourcing.
Supply support for NZ9F3V0ST5G 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 manufacturer specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
The NZ9F3V0ST5G belongs to the NZ9FxxxST5G series of miniature Zener regulators designed specifically for space-critical, high-reliability portable and automotive electronics requiring AEC-Q101 validation and ultra-low-profile packaging.
FAQ
What is the Zener voltage tolerance of NZ9F3V0ST5G?
The NZ9F3V0ST5G has a specified Zener voltage range of 2.94 V to 3.26 V at 5 mA test current, corresponding to a ±4.0% tolerance around the nominal 3.0 V rating. This tight tolerance is confirmed in the Electrical Characteristics table on page 3 of the official datasheet and enables use in precision reference and clamping applications without additional calibration. The NZ9F3V0ST5G maintains this specification across its full operating temperature range.
Is NZ9F3V0ST5G suitable for automotive applications?
Yes, NZ9F3V0ST5G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the device marking column and features section of the datasheet. The "SZ" prefix variant (SZNZ9F3V0ST5G) denotes automotive-grade screening, but the NZ9F3V0ST5G itself shares identical electrical, thermal, and reliability specifications. It meets automotive requirements for temperature cycling, ESD, and mechanical robustness, making it appropriate for BCM, infotainment, and ADAS subsystems.
What is the maximum operating temperature for NZ9F3V0ST5G?
The NZ9F3V0ST5G has a junction and storage temperature range of −65°C to +150°C, per the Maximum Ratings table. Its thermal resistance (RJA) is 500°C/W on FR-4 board, meaning it can sustain continuous operation at +150°C junction temperature only at significantly derated power - e.g., ~150 mW at +85°C ambient. Full 250 mW operation is limited to 25°C ambient, with linear derating at 2.0 mW/°C above that point.
Does NZ9F3V0ST5G have built-in ESD protection?
Yes, NZ9F3V0ST5G is rated Class 3 per Human Body Model (HBM) with >16 kV ESD withstand capability, as documented in the Specification Features section. This intrinsic ESD robustness eliminates the need for supplemental TVS diodes in many I/O protection schemes and is verified through standardized AEC-Q101 testing. The NZ9F3V0ST5G achieves this via optimized junction design and passivation, not external components.
What is the package type and dimensions of NZ9F3V0ST5G?
NZ9F3V0ST5G uses the SOD-923 package (Case 514AB), measuring 1.00 mm × 0.60 mm in footprint and 0.40 mm in height. These dimensions are specified in the Package Dimensions drawing on page 4 of the datasheet and confirmed by mechanical tolerancing per ASME Y14.5M. The SOD-923 footprint allows placement in ultra-dense layouts where even SOD-523 is too large, and the NZ9F3V0ST5G's marking includes a microdot for cathode identification.
NZ9F3V0ST5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-923
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 3.1 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
- Supplier Device Package:
- SOD-923
NZ9F3V0ST5G FAQ
1.How can I place an order for NZ9F3V0ST5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ9F3V0ST5G 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 NZ9F3V0ST5G reliable?
The price and inventory of NZ9F3V0ST5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ9F3V0ST5G is usually 5 days.
3.What payment methods are accepted for NZ9F3V0ST5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ9F3V0ST5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ9F3V0ST5G?
NZ9F3V0ST5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ9F3V0ST5G 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 NZ9F3V0ST5G?
For technical support, including NZ9F3V0ST5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ9F3V0ST5G requirements.
6.How does Aetrix verify that NZ9F3V0ST5G is sourced from the original manufacturer or authorized distributors?
All NZ9F3V0ST5G 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 NZ9F3V0ST5G meets industry standards.
7.What is the process for return or replacement of NZ9F3V0ST5G?
All NZ9F3V0ST5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ9F3V0ST5G, 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 NZ9F3V0ST5G part is unused and in its original packaging.
Return procedure for NZ9F3V0ST5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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