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onsemi NZ9F9V1ST5G
- Part No.:
- NZ9F9V1ST5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-923
- Datasheet:
-
NZ9F9V1ST5G.pdf
- Description:
- DIODE ZENER 9.04V 250MW SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:7,113
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Product details
Overview
NZ9F9V1ST5G from onsemi is a 9.1 V ±3.8% Zener diode in SOD-923 package, rated for 250 mW steady-state power dissipation at 25°C with 30 Ω maximum Zener impedance at 5 mA test current and 6 μA maximum reverse leakage at 7.2 V, used for voltage regulation and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the NZ9F9V1ST5G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±3.8%), low-profile SOD-923 footprint (1.00 mm × 0.60 mm × 0.40 mm), AEC-Q101 qualification, 16 kV HBM ESD rating, and thermal resistance of 500°C/W.
Technical Context
This device operates as a two-terminal voltage reference by maintaining a stable reverse breakdown voltage across its cathode-anode terminals under controlled current conditions. It delivers precise regulation with tight VZ tolerance (±3.8%) and low dynamic impedance (30 Ω @ 5 mA), enabling accurate clamping in low-power signal conditioning paths.
The SOD-923 package supports high-density PCB layouts with minimal board area and height, while its Pb-free matte tin lead finish and MSL 1 rating ensure compatibility with standard reflow processes up to 260°C. Junction temperature range spans −65°C to +150°C, supporting operation in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.85 V to 9.23 V at IZT = 5 mA - defines regulated output voltage window under nominal bias |
| Power Dissipation (PD) | 250 mW at TA = 25°C - sets maximum continuous power handling on FR-4 board |
| Zener Impedance (ZZT) | 30 Ω max @ IZT = 5 mA - determines voltage stability under load transients |
| Reverse Leakage (IR) | 6 μA max @ VR = 7.2 V - limits standby current in always-on protection circuits |
| ESD Rating | Class 3 (>16 kV) per HBM - ensures robustness against human-body electrostatic discharge |
| Package | SOD-923 (Case 514AB) - 1.00 mm × 0.60 mm × 0.40 mm footprint for ultra-compact mounting |
| Temperature Coefficient | +3.8 mV/°C @ IZT = 5 mA - quantifies VZ drift with ambient temperature change |
Pinout & Package
SOD-923 surface-mount package with 2-terminal configuration: cathode (marked side) and anode (unmarked side). Body dimensions: 1.00 mm × 0.60 mm × 0.40 mm; mounting position unrestricted; qualified for 260°C reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference terminal | Connected to regulated node; polarity-sensitive for reverse-bias operation |
| 2 (Anode) | Reference return path | Typically tied to ground or lower-potential rail in shunt regulator topology |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener voltage tolerance | ±3.8% at 9.1 V enables accurate voltage clamping without post-production trimming |
| Ultra-small SOD-923 footprint | 1.00 mm × 0.60 mm area saves >60% board space vs. SOD-123 in high-density layouts |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling and humidity testing |
| 16 kV HBM ESD rating | Eliminates need for external ESD protection in handheld and portable interface circuits |
| Pb-free matte tin finish | Complies with RoHS and JEDEC J-STD-020 reflow standards without solderability compromise |
Applications
| Smartphone Power Rail Protection | Automotive Infotainment I/O Clamping |
|---|---|
Use Scenario: Protecting 9 V supply rails in smartphone camera modules from transient overvoltage events during hot-plug or ESD events. IC Role / Device Role / Timing Role: Shunt-type voltage clamp placed between VCC and GND to divert surge current above 9.1 V threshold. Use Value: Prevents damage to image sensor ICs and PMICs using only 1.00 mm × 0.60 mm board area and no additional passive components. | Use Scenario: Safeguarding UART and CAN transceiver I/O lines in automotive infotainment head units against load-dump-induced spikes. IC Role / Device Role / Timing Role: Bidirectional transient suppressor configured in back-to-back Zener arrangement for ±9.1 V clamping. Use Value: Meets AEC-Q101 requirements while fitting within 0.40 mm height constraint of stacked PCB assemblies. |
| Wearable Sensor Bias Reference | Industrial PLC Analog Input Protection |
Use Scenario: Providing stable 9.1 V reference for precision ADC biasing in compact wearable health monitors. IC Role / Device Role / Timing Role: Low-drift voltage reference source with +3.8 mV/°C tempco for calibrated sensor excitation. Use Value: Enables <1% full-scale error over −40°C to +85°C without active compensation circuitry. | Use Scenario: Protecting 4–20 mA current loop analog inputs in programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Primary overvoltage limiter on input front-end, paired with series current-limiting resistor. Use Value: Survives repeated 1 kV/μs transients per IEC 61000-4-5 due to low ZZT (30 Ω) and fast response time (<1 ns). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C9V1LT1G | Same 9.1 V nominal VZ, but ±5% tolerance (vs. ±3.8%) and 40 Ω ZZT (vs. 30 Ω) | Larger SOD-523 package (1.2 mm × 0.8 mm) increases board area by 60% | Select when tighter tolerance or smaller footprint is not required and BOM consolidation favors Diodes Inc. family |
| MMSZ4687T1G | 9.1 V nominal VZ with ±5% tolerance and 100 Ω ZZT; rated for 500 mW (vs. 250 mW) | SOD-123 package (3.7 mm × 1.6 mm) occupies >6× more area than SOD-923 | Choose where higher power handling is needed and board space permits larger footprint |
Compared with BZX584C9V1LT1G and MMSZ4687T1G, NZ9F9V1ST5G offers superior voltage accuracy and smallest available footprint for 9.1 V Zener regulation, making it optimal for miniaturized designs where thermal budget and layout density are critical constraints.
Availability
NZ9F9V1ST5G is available at Aetrix Electronics and suitable for smartphone power rail protection, automotive infotainment I/O clamping, and wearable sensor bias reference requiring stable component supply with guaranteed long-term availability.
Supply support for NZ9F9V1ST5G 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 management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NZ9F series is part of onsemi's precision Zener regulator portfolio designed specifically for space-constrained, high-reliability applications demanding tight voltage tolerance, low profile, and AEC-Q101 compliance.
FAQ
What is the Zener voltage tolerance of NZ9F9V1ST5G?
The NZ9F9V1ST5G has a Zener voltage tolerance of ±3.8%, specified as 8.85 V minimum to 9.23 V maximum at IZT = 5 mA. This tight tolerance ensures consistent voltage clamping performance across production lots without calibration, critical for precision reference and protection circuits where deviation beyond ±4% would compromise system functionality.
Is NZ9F9V1ST5G qualified for automotive applications?
Yes, NZ9F9V1ST5G carries the SZ prefix variant (SZNZ9F9V1ST5G) which is AEC-Q101 qualified and PPAP capable. The device undergoes stress testing for temperature cycling, humidity, and mechanical shock per automotive reliability standards, making it suitable for use in infotainment systems, body control modules, and ADAS sensors where extended temperature operation and long-term stability are required.
What is the maximum operating temperature for NZ9F9V1ST5G?
NZ9F9V1ST5G supports a junction and storage temperature range of −65°C to +150°C. Its thermal resistance of 500°C/W means that at 250 mW dissipation, junction temperature rise above ambient is 125°C - so maximum ambient temperature must be limited to +25°C for safe operation at full power. Derating is required above 25°C at 2.0 mW/°C.
Does NZ9F9V1ST5G require external current limiting?
Yes, NZ9F9V1ST5G requires an external series current-limiting resistor to set the operating current within its 5 mA test condition and avoid exceeding 250 mW power dissipation. Without proper biasing, excessive current can cause thermal runaway or permanent degradation. Typical designs use resistor values calculated from (VIN − 9.1 V)/IZ to maintain stable regulation and longevity.
What is the marking code for NZ9F9V1ST5G on the SOD-923 package?
The NZ9F9V1ST5G is marked with "R" on the top surface of the SOD-923 package, indicating its specific Zener voltage variant within the NZ9F series. The "R" marking is rotated 180° per the datasheet diagram, and the cathode is identified by the marked side - essential for correct orientation during automated placement and functional verification.
NZ9F9V1ST5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-923
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 9.04 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 6 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
NZ9F9V1ST5G FAQ
1.How can I place an order for NZ9F9V1ST5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ9F9V1ST5G 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 NZ9F9V1ST5G reliable?
The price and inventory of NZ9F9V1ST5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ9F9V1ST5G is usually 5 days.
3.What payment methods are accepted for NZ9F9V1ST5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ9F9V1ST5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ9F9V1ST5G?
NZ9F9V1ST5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ9F9V1ST5G 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 NZ9F9V1ST5G?
For technical support, including NZ9F9V1ST5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ9F9V1ST5G requirements.
6.How does Aetrix verify that NZ9F9V1ST5G is sourced from the original manufacturer or authorized distributors?
All NZ9F9V1ST5G 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 NZ9F9V1ST5G meets industry standards.
7.What is the process for return or replacement of NZ9F9V1ST5G?
All NZ9F9V1ST5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ9F9V1ST5G, 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 NZ9F9V1ST5G part is unused and in its original packaging.
Return procedure for NZ9F9V1ST5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZ9F9V1ST5G Tags
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