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onsemi NZ9F4V7T5G
- Part No.:
- NZ9F4V7T5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-923
- Datasheet:
-
NZ9F4V7T5G.pdf
- Description:
- DIODE ZENER 4.7V 250MW SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:50,696
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Product details
Overview
NZ9F4V7T5G from onsemi is a 4.47–4.94 V, 250 mW SOD-923 surface-mount Zener diode optimized for voltage regulation and overvoltage protection in space-constrained portable electronics. It delivers 5 mA test current, <800 Ω dynamic impedance at IZT, 0.5 µA leakage at 0.2 V reverse bias, and −3.5 mV/°C temperature coefficient - enabling stable reference performance in battery-powered sensor nodes and USB interface clamping circuits.
For engineers reviewing the NZ9F4V7T5G datasheet, pinout, applications, or equivalent options, key selection criteria include its 150 pF capacitance at 0 V, AEC-Q101 qualification (SZ-prefix variants), 16 kV HBM ESD rating, and compatibility with 260 °C reflow profiles under MSL 1 conditions.
Technical Context
This Zener regulator operates in reverse breakdown to maintain a stable reference voltage across varying load and temperature conditions. Its low 0.40 mm height and 1.00 mm × 0.60 mm footprint support high-density PCB layouts where vertical clearance and board area are constrained.
The device exhibits a negative temperature coefficient (−3.5 mV/°C) and specified leakage of only 0.5 µA at VR = 0.2 V, making it suitable for low-power standby circuits. Thermal resistance is 500 °C/W (junction-to-ambient on FR-5 board), limiting continuous dissipation to 250 mW at 25 °C with linear derating above that temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.47–4.94 V @ IZT = 5 mA - defines regulated output range under nominal test conditions |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C - maximum steady-state power before thermal derating begins |
| Zener Impedance (ZZT) | <800 Ω @ IZT = 5 mA - determines voltage stability under small-signal AC load variations |
| Reverse Leakage (IR) | 0.5 µA @ VR = 0.2 V - ensures minimal quiescent current in low-power shutdown modes |
| Capacitance (C) | 150 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and signal integrity in RF-adjacent traces |
| ESD Rating | Class 3 (>16 kV) HBM - provides robustness against handling-induced electrostatic discharge in assembly environments |
| Package | SOD-923 (Case 514AB) - 1.00 mm × 0.60 mm × 0.37 mm footprint with cathode band marking |
Pinout & Package
SOD-923 package: 2-terminal surface-mount device with cathode marked by polarity band; body dimensions 1.00 mm × 0.60 mm × 0.37 mm; mounting position unrestricted; Pb-free matte tin lead finish; qualified for 260 °C reflow (MSL 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased during Zener operation; polarity band identifies this terminal |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential rail; completes conduction path during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SOD-923 footprint | Enables placement in <1.0 mm² board area - critical for wearable sensors and miniaturized IoT modules |
| 250 mW power rating with 500 °C/W RJA | Supports continuous regulation in thermally isolated sections without heatsinking |
| 16 kV HBM ESD immunity | Eliminates need for external ESD protection in handheld device front-end interfaces |
| −3.5 mV/°C tempco | Ensures predictable voltage drift over −65 to +150 °C operating range - simplifies calibration in automotive cabin modules |
| Pb-free, RoHS-compliant construction | Meets global environmental compliance requirements without sacrificing electrical performance |
Applications
| USB Data Line Protection | Low-Power Sensor Reference |
|---|---|
Use Scenario: Clamping transient surges on USB 2.0 D+/D− lines in portable chargers and OTG adapters. IC Role / Device Role / Timing Role: Voltage clamp protecting PHY transceivers from ESD and cable-induced spikes. Use Value: 150 pF capacitance avoids signal integrity degradation at 480 Mbps; 16 kV HBM rating exceeds IEC 61000-4-2 Level 4. |
Use Scenario: Providing stable 4.7 V reference for ADC biasing in battery-operated environmental sensors. IC Role / Device Role / Timing Role: Precision shunt reference supplying excitation voltage to resistive bridge elements. Use Value: 0.5 µA leakage at 0.2 V ensures <1 µW standby power draw; −3.5 mV/°C tempco enables ±1.5% accuracy over −20 to +70 °C. |
| Mobile Phone Battery Monitoring | Automotive Cabin Controller Supply Clamp |
Use Scenario: Regulating voltage for fuel gauge ICs connected to Li-ion battery packs in smartphones. IC Role / Device Role / Timing Role: Overvoltage limiter preventing damage to monitoring ICs during fast-charge termination transients. Use Value: 250 mW rating handles brief 100 ms overvoltage events; SOD-923 size fits within tight battery connector zones. |
Use Scenario: Protecting microcontroller I/O pins from load-dump spikes in HVAC control modules. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping supply rails during alternator switching events. Use Value: AEC-Q101 qualification confirms reliability under automotive thermal cycling; 4.47–4.94 V range matches 5 V logic rail tolerances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C4V7 | 4.7 V nominal (±5%), 300 mW rating, SOD-523 package (0.8 × 0.6 mm), 200 pF capacitance | Higher power but larger junction capacitance - less suitable for high-speed data line clamping | Select when higher surge energy absorption is required and board space allows SOD-523 footprint |
| MMSZ4704T1G | 4.7 V nominal (±5%), 500 mW rating, SOD-123 package (3.7 × 1.6 mm), 300 pF capacitance | Higher power and thermal mass but 2× larger footprint and 2× higher capacitance - limits use in RF-sensitive areas | Choose for industrial power supply feedback loops where layout density is less constrained and higher power margin is needed |
Compared with BZX584-C4V7 and MMSZ4704T1G, the NZ9F4V7T5G offers superior space efficiency and lower capacitance for high-frequency signal integrity, while trading off absolute power handling - making it optimal for ultra-compact, low-power, and ESD-critical designs.
Availability
NZ9F4V7T5G is available at Aetrix Electronics and suitable for USB interface protection, battery voltage monitoring, and low-power sensor reference applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for NZ9F4V7T5G 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.
The NZ9F4V7T5G belongs to onsemi's NZ9F/SZNZ9F series of miniature Zener regulators, engineered specifically for voltage reference and overvoltage protection in space- and power-constrained portable electronics.
FAQ
What is the Zener voltage tolerance for NZ9F4V7T5G?
The NZ9F4V7T5G has a guaranteed Zener voltage range of 4.47 V to 4.94 V at IZT = 5 mA and TA = 25 °C. This ±4.7% tolerance reflects the device's specified minimum and maximum breakdown voltages under standard test conditions, and is tighter than many general-purpose Zeners due to its precision trimming process.
Is NZ9F4V7T5G suitable for automotive applications?
The NZ9F4V7T5G itself is not AEC-Q101 qualified; however, its SZ-prefix variant SZNZ9F4V7T5G is fully AEC-Q101 qualified and PPAP capable. For automotive use, engineers must specify the SZNZ9F4V7T5G part number to ensure compliance with automotive reliability and traceability requirements.
What is the maximum reverse leakage current for NZ9F4V7T5G?
The NZ9F4V7T5G exhibits a maximum reverse leakage current of 0.5 µA at VR = 0.2 V and TA = 25 °C. This ultra-low leakage supports energy-sensitive applications such as always-on sensor nodes and battery-backed real-time clocks where standby current must remain below 1 µA.
Does NZ9F4V7T5G have a defined polarity marking?
Yes, NZ9F4V7T5G uses Style 1 marking per the SOD-923 mechanical drawing: Pin 1 (cathode) is identified by a visible polarity band on the device body. The anode (Pin 2) is the unmarked end. This marking is consistent across all NZ9F-series devices in SOD-923 packaging.
Can NZ9F4V7T5G be used in high-frequency signal paths?
Yes - with a measured capacitance of 150 pF at 0 V and 1 MHz, the NZ9F4V7T5G introduces minimal loading in USB 2.0 (480 Mbps) and I²C signal paths. Its low capacitance, combined with fast response to transients, makes it appropriate for clamping high-speed digital interfaces without degrading edge rates or eye diagrams.
NZ9F4V7T5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-923
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.7 V
- Tolerance:
- ±5%
- 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
NZ9F4V7T5G FAQ
1.How can I place an order for NZ9F4V7T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ9F4V7T5G 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 NZ9F4V7T5G reliable?
The price and inventory of NZ9F4V7T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ9F4V7T5G is usually 5 days.
3.What payment methods are accepted for NZ9F4V7T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ9F4V7T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ9F4V7T5G?
NZ9F4V7T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ9F4V7T5G 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 NZ9F4V7T5G?
For technical support, including NZ9F4V7T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ9F4V7T5G requirements.
6.How does Aetrix verify that NZ9F4V7T5G is sourced from the original manufacturer or authorized distributors?
All NZ9F4V7T5G 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 NZ9F4V7T5G meets industry standards.
7.What is the process for return or replacement of NZ9F4V7T5G?
All NZ9F4V7T5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ9F4V7T5G, 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 NZ9F4V7T5G part is unused and in its original packaging.
Return procedure for NZ9F4V7T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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