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onsemi NZ9F15VST5G
- Part No.:
- NZ9F15VST5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-923
- Datasheet:
-
NZ9F15VST5G.pdf
- Description:
- DIODE ZENER 14.66V 250MW SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:16,585
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Product details
Overview
NZ9F15VST5G from onsemi is a 15 V ±3.7% Zener diode in SOD-923 package, rated for 250 mW steady-state power dissipation, with 42 Ω maximum Zener impedance at 5 mA test current and 11 mW temperature coefficient (dVZ/dT), designed for precision voltage regulation and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the NZ9F15VST5G datasheet, pinout, applications, or equivalent options, key selection criteria include its 14.34–14.98 V nominal Zener voltage range, 16 kV HBM ESD rating, low 0.40 mm height, AEC-Q101 qualification (SZ-prefix variant), and tight 5% tolerance - all critical for high-density PCBs in battery-powered devices.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to clamp voltage at ~15 V when forward-biased current exceeds threshold. Its thermal resistance of 500 °C/W and derating slope of 2.0 mW/°C above 25 °C define safe operating limits under ambient thermal conditions.
The SOD-923 package enables surface-mount assembly with MSL 1 reflow compatibility up to 260 °C, while its 100% matte tin lead finish and UL 94 V-0 epoxy ensure reliability in automated manufacturing and harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.34–14.98 V @ IZT = 5 mA - defines precise clamping threshold for 15 V rail protection |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C - sets maximum continuous energy handling on FR-4 board |
| Zener Impedance (ZZT) | 42 Ω max @ IZT = 5 mA - determines voltage regulation stability under load transients |
| Temperature Coefficient | +9.2 mV/°C @ IZT = 5 mA - quantifies VZ drift across operating temperature range |
| ESD Rating (HBM) | >16 kV - ensures robustness against human-body electrostatic discharge during handling and assembly |
| Capacitance (C) | 70 pF max @ VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering capability |
| Reverse Leakage (IR) | 0.1 µA max @ VR = 11 V - defines standby power loss in voltage-sense circuits |
Pinout & Package
SOD-923 package: 1.00 mm × 0.60 mm body, 0.40 mm height, cathode-marked top-side band, 2-terminal configuration, MSL 1, Pb-free, matte Sn finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-biased terminal | Connected to regulated node; polarity band identifies this terminal for correct orientation during placement |
| 2 (Anode) | Reference/ground terminal | Typically tied to system ground or lower-potential rail; completes Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Tight VZ tolerance | ±3.7% (14.34–14.98 V) - enables accurate voltage clamping without post-production trimming |
| Ultra-small footprint | 1.00 mm × 0.60 mm - saves PCB area in smartphones, wearables, and IoT sensor nodes |
| High ESD immunity | >16 kV HBM - eliminates need for external ESD protection in front-end interfaces |
| AEC-Q101 qualified option | SZ-prefix variant available - supports automotive infotainment and ADAS subsystems requiring stress-tested components |
Applications
| Smartphone Power Management | USB-C Port Protection |
|---|---|
Use Scenario: Regulating auxiliary 15 V supply rails in multi-rail PMIC subsystems where board space is constrained. IC Role / Device Role / Timing Role: Voltage clamp protecting downstream LDOs and analog sensors from transient overvoltage events. Use Value: Prevents latch-up and damage during hot-plug or load-dump events using only 0.6 mm² footprint. | Use Scenario: Overvoltage protection on USB-C VBUS lines supporting programmable power supply (PPS) negotiation. IC Role / Device Role / Timing Role: Fast-acting shunt regulator absorbing surge energy before it reaches USB controller ICs. Use Value: Maintains compliance with USB-IF 5 V/9 V/15 V/20 V PPS profiles while surviving >16 kV ESD contact discharge. |
| Industrial Sensor Signal Conditioning | Medical Wearable Battery Monitoring |
Use Scenario: Stabilizing reference voltage for 16-bit ADCs measuring 12–15 V industrial bus voltages. IC Role / Device Role / Timing Role: Precision Zener reference providing stable bias for instrumentation amplifiers and level-shifters. Use Value: Delivers <±0.5% total error over −40 to +85 °C due to low tempco and tight initial tolerance. | Use Scenario: Protecting lithium-ion battery fuel gauge ICs from overvoltage during fast-charging cycles. IC Role / Device Role / Timing Role: Clamp diode placed between battery pack and fuel gauge input to limit voltage spikes. Use Value: Enables reliable state-of-charge estimation by limiting input to ≤15 V with sub-µA leakage at 11 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C15LT1G | 15 V, ±5%, 300 mW, SOD-323 package (1.7 × 1.3 mm) | Larger footprint; higher power but less space-efficient | Select when higher power margin is required and PCB area allows 2.2× larger package |
| MMSZ5245B-TP | 15 V, ±5%, 500 mW, SOD-123 package (3.7 × 1.6 mm) | 3× larger size; higher PD but incompatible with ultra-dense layouts | Choose for legacy designs needing proven reliability and higher surge capability |
Compared with BZX584C15LT1G and MMSZ5245B-TP, NZ9F15VST5G delivers identical 15 V regulation in the smallest industry-standard footprint (SOD-923), enabling miniaturization where board area is premium - at the trade-off of lower absolute power rating.
Availability
NZ9F15VST5G is available at Aetrix Electronics and suitable for smartphone power management, USB-C port protection, and industrial sensor signal conditioning requiring stable component supply and consistent Zener voltage performance.
Supply support for NZ9F15VST5G 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 supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
NZ9F15VST5G belongs to the NZ9F/SZNZ9F series of low-profile Zener regulators engineered specifically for space-constrained, high-reliability portable electronics - emphasizing minimal height, high ESD immunity, and tight voltage tolerance.
FAQ
What is the exact Zener voltage range specified for NZ9F15VST5G?
The NZ9F15VST5G has a guaranteed Zener voltage range of 14.34 V to 14.98 V at a test current of 5 mA, corresponding to a nominal 15 V rating with ±3.7% tolerance. This specification is measured per the onsemi datasheet Rev. 4 and reflects actual production binning limits - not typical or average values. The NZ9F15VST5G maintains this range across its qualified operating temperature span.
Is NZ9F15VST5G suitable for automotive applications?
The NZ9F15VST5G itself is not AEC-Q101 qualified; however, its SZ-prefix variant SZNZ9F15VST5G is fully AEC-Q101 qualified and PPAP capable. For automotive use, engineers must specify the SZNZ9F15VST5G part number - the NZ9F15VST5G is intended for commercial and industrial portable electronics where automotive-grade stress testing is not required.
What is the maximum junction temperature and storage temperature range for NZ9F15VST5G?
The NZ9F15VST5G has a junction and storage temperature range of −65 °C to +150 °C, as defined in the Absolute Maximum Ratings table of the onsemi datasheet. This wide range supports operation in extended-environment applications such as outdoor industrial sensors and sealed wearable devices, provided thermal derating (2.0 mW/°C above 25 °C) is applied to maintain reliability.
Does NZ9F15VST5G have a marked cathode terminal, and how is it identified?
Yes, NZ9F15VST5G uses Style 1 marking per the SOD-923 mechanical drawing: Pin 1 is the cathode and is identified by a visible polarity band on the top surface of the package. The anode (Pin 2) is unmarked. This marking aligns with JEDEC standards and ensures correct orientation during automated pick-and-place assembly.
What is the Zener impedance of NZ9F15VST5G at its rated test current?
The NZ9F15VST5G exhibits a maximum Zener impedance (ZZT) of 42 Ω at its rated test current of 5 mA, as specified in the Electrical Characteristics table. This value directly affects regulation accuracy under dynamic load changes - lower impedance yields tighter voltage control, making the NZ9F15VST5G suitable for applications demanding stable reference voltage despite current fluctuations.
NZ9F15VST5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-923
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 14.66 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 42 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 11 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
NZ9F15VST5G FAQ
1.How can I place an order for NZ9F15VST5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ9F15VST5G 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 NZ9F15VST5G reliable?
The price and inventory of NZ9F15VST5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ9F15VST5G is usually 5 days.
3.What payment methods are accepted for NZ9F15VST5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ9F15VST5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ9F15VST5G?
NZ9F15VST5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ9F15VST5G 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 NZ9F15VST5G?
For technical support, including NZ9F15VST5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ9F15VST5G requirements.
6.How does Aetrix verify that NZ9F15VST5G is sourced from the original manufacturer or authorized distributors?
All NZ9F15VST5G 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 NZ9F15VST5G meets industry standards.
7.What is the process for return or replacement of NZ9F15VST5G?
All NZ9F15VST5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ9F15VST5G, 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 NZ9F15VST5G part is unused and in its original packaging.
Return procedure for NZ9F15VST5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZ9F15VST5G Tags
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