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onsemi NZ9F4V7ST5G
- Part No.:
- NZ9F4V7ST5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-923
- Datasheet:
-
NZ9F4V7ST5G.pdf
- Description:
- DIODE ZENER 4.65V 250MW SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:914
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Product details
Overview
NZ9F4V7ST5G from onsemi is a 4.55–4.75 V, 250 mW Zener voltage regulator diode in SOD-923 package, designed for precision low-power voltage reference and overvoltage protection in space-constrained portable electronics such as smartphones and high-density PCBs.
For engineers reviewing the NZ9F4V7ST5G datasheet, pinout, applications, or equivalent options, key selection criteria include its tight Zener tolerance (±2.2% at 5 mA), low 800 Ω dynamic impedance at IZT, 150 pF capacitance at 0 V, Class 3 ESD rating (>16 kV HBM), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device operates as a two-terminal reverse-biased semiconductor junction, maintaining stable output voltage across a 0.5–5 mA test current range. Its thermal resistance of 500 °C/W and 2.0 mW/°C derating above 25 °C define its power handling limits on FR-5 board.
The NZ9F4V7ST5G exhibits a temperature coefficient of +0.2 mV/°C at 5 mA and supports forward conduction with VF ≤ 0.9 V at 10 mA - enabling bidirectional clamping or dual-role biasing in compact protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.55–4.75 V at 5 mA - defines precise regulation window for 4.7 V nominal rail stabilization |
| Power Rating (PD) | 250 mW at 25 °C - sets maximum continuous dissipation before thermal derating begins |
| Zener Impedance (ZZT) | ≤800 Ω at IZT = 5 mA - ensures minimal voltage shift under load transients |
| Capacitance (C) | ≤150 pF at VR = 0 V, f = 1 MHz - enables use in high-frequency signal line protection without bandwidth degradation |
| ESD Rating | Class 3 (>16 kV HBM) - provides robust electrostatic immunity for handheld interface ports |
| Temp Coefficient | +0.2 mV/°C at 5 mA - indicates slight positive drift, critical for temperature-stable reference designs |
| Leakage Current (IR) | ≤2 µA at VR = 3.8 V - guarantees low quiescent current in battery-powered standby circuits |
Pinout & Package
SOD-923 surface-mount package: 1.00 mm × 0.60 mm body, 0.40 mm height, matte tin lead finish, MSL 1, reflow compatible up to 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated voltage node; polarity band identifies this terminal for correct PCB orientation |
| 2 | Anode | Connected to ground or lower-potential reference; completes reverse-bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Tight VZ tolerance | ±2.2% at 5 mA - reduces need for post-production trimming in precision voltage monitoring |
| Low-profile SOD-923 | 0.40 mm max height - enables placement beneath connectors or under shields in ultra-thin devices |
| AEC-Q101 qualified | Validated for automotive ambient temperature range (−65 °C to +150 °C) - supports under-hood and infotainment applications |
| Pb-free construction | 100% matte Sn finish, RoHS-compliant - meets global environmental compliance without solderability trade-offs |
| High ESD immunity | Class 3 per HBM (>16 kV) - eliminates need for external TVS in USB, SIM, or SD card interface protection |
Applications
| Smartphone Power Rail Clamping | Automotive Infotainment I/O Protection |
|---|---|
Use Scenario: Protecting 4.7 V camera sensor supply from ESD and load dump spikes in slim smartphone PCBs. IC Role / Device Role / Timing Role: Zener clamp placed between rail and ground to shunt transient energy while holding steady-state voltage. Use Value: 150 pF capacitance avoids signal integrity loss on high-speed MIPI lines; 250 mW rating handles short-duration surges without failure. | Use Scenario: Safeguarding UART and CAN-FD transceiver I/O pins against induced transients in vehicle cabin modules. IC Role / Device Role / Timing Role: Bidirectional clamping element referenced to local ground, leveraging forward VF ≤ 0.9 V and reverse VZ stability. Use Value: AEC-Q101 qualification ensures operation across −40 °C to +125 °C ambient; Class 3 ESD withstand prevents latch-up during assembly and field use. |
| Wearable Battery Voltage Reference | Industrial Sensor Signal Conditioning |
Use Scenario: Providing stable 4.7 V reference for ADC biasing in coin-cell-powered fitness trackers. IC Role / Device Role / Timing Role: Low-leakage (≤2 µA at 3.8 V) Zener used as passive reference in ultra-low-power analog front-end. Use Value: Tight ±2.2% tolerance eliminates calibration steps; 0.40 mm height allows integration into 1.2 mm total stack-up wearable modules. | Use Scenario: Regulating excitation voltage for 3.3 V bridge sensors in factory-floor pressure transmitters. IC Role / Device Role / Timing Role: Precision shunt regulator stabilizing Wheatstone bridge bias despite 12–24 V supply variation. Use Value: 800 Ω ZZT minimizes regulation error under 100 µA load; −65 °C to +150 °C TJ range supports extended industrial temperature operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C4V7 | 4.7 V nominal, ±5% tolerance, 300 mW rating, SOD-523 package (1.2 × 0.8 mm) | Larger footprint and looser tolerance; higher power but less precision | Select when higher surge margin is needed and board area permits larger SOD-523 |
| MMSZ4704T1G | 4.7 V nominal, ±5% tolerance, 500 mW rating, SOD-123 package (3.7 × 1.6 mm) | 3× larger footprint, higher power, no AEC-Q101 qualification | Choose for non-automotive industrial use where layout space and cost outweigh automotive compliance needs |
Compared with BZX584C4V7 and MMSZ4704T1G, the NZ9F4V7ST5G delivers tighter voltage control (±2.2% vs. ±5%), smaller size (SOD-923), and automotive qualification - making it optimal for space-limited, high-reliability consumer and automotive edge nodes where precision and footprint are critical.
Availability
NZ9F4V7ST5G is available at Aetrix Electronics and suitable for smartphone power rail clamping, automotive infotainment I/O protection, and wearable battery voltage reference requiring stable component supply and full traceability.
Supply support for NZ9F4V7ST5G 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 silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The NZ9F4V7ST5G belongs to onsemi's NZ9F series of miniature Zener regulators - engineered specifically for high-density portable electronics and automotive subsystems demanding ultra-small footprint, high ESD resilience, and AEC-Q101 reliability.
FAQ
What is the exact Zener voltage range specified for NZ9F4V7ST5G?
The NZ9F4V7ST5G has a guaranteed Zener voltage range of 4.55 V to 4.75 V when tested at IZT = 5 mA and TA = 25 °C. This ±2.2% tolerance is tighter than standard Zeners and enables accurate voltage referencing without calibration in the NZ9F4V7ST5G design.
Is NZ9F4V7ST5G qualified for automotive applications?
Yes, the NZ9F4V7ST5G is AEC-Q101 qualified and PPAP capable, with full validation across −65 °C to +150 °C junction temperature range. Its SZ-prefix variant (SZNZ9F4V7ST5G) explicitly denotes automotive-grade process control - confirming that the NZ9F4V7ST5G meets stringent automotive reliability requirements.
What is the maximum operating temperature for NZ9F4V7ST5G?
The NZ9F4V7ST5G supports a junction and storage temperature range of −65 °C to +150 °C. Its thermal resistance of 500 °C/W and 2.0 mW/°C derating above 25 °C define safe continuous operation - meaning the NZ9F4V7ST5G can sustain full 250 mW only at ambient ≤25 °C, with linear reduction thereafter.
Does NZ9F4V7ST5G have Pb-free construction?
Yes, the NZ9F4V7ST5G is a Pb-free device with 100% matte tin lead finish, compliant with RoHS Directive 2011/65/EU. The "G" suffix in NZ9F4V7ST5G explicitly denotes Pb-free packaging, and the epoxy mold compound meets UL 94 V-0 flammability rating.
What is the cathode/anode marking convention for NZ9F4V7ST5G?
The NZ9F4V7ST5G uses Style 1 marking per onsemi's SOD-923 mechanical drawing: a polarity band adjacent to Pin 1 identifies the cathode, while Pin 2 is the anode. The device marking "E" (per Electrical Characteristics table) appears alongside a date code, and the microdot or "G" may be present to indicate Pb-free status.
NZ9F4V7ST5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-923
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.65 V
- Tolerance:
- ±2%
- 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
- Supplier Device Package:
- SOD-923
NZ9F4V7ST5G FAQ
1.How can I place an order for NZ9F4V7ST5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ9F4V7ST5G 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 NZ9F4V7ST5G reliable?
The price and inventory of NZ9F4V7ST5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ9F4V7ST5G is usually 5 days.
3.What payment methods are accepted for NZ9F4V7ST5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ9F4V7ST5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ9F4V7ST5G?
NZ9F4V7ST5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ9F4V7ST5G 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 NZ9F4V7ST5G?
For technical support, including NZ9F4V7ST5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ9F4V7ST5G requirements.
6.How does Aetrix verify that NZ9F4V7ST5G is sourced from the original manufacturer or authorized distributors?
All NZ9F4V7ST5G 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 NZ9F4V7ST5G meets industry standards.
7.What is the process for return or replacement of NZ9F4V7ST5G?
All NZ9F4V7ST5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ9F4V7ST5G, 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 NZ9F4V7ST5G part is unused and in its original packaging.
Return procedure for NZ9F4V7ST5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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