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onsemi NZ9F2V4ST5G
- Part No.:
- NZ9F2V4ST5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-923
- Datasheet:
-
NZ9F2V4ST5G.pdf
- Description:
- DIODE ZENER 2.53V 250MW SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:9,345
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Product details
Overview
NZ9F2V4ST5G from onsemi is a 2.4 V ±0.1 V tolerance 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. It provides precision voltage regulation and ESD protection (Class 3, >16 kV HBM) in ultra-compact footprint (1.00 mm × 0.60 mm × 0.40 mm), commonly used in cellular phone power rail clamping and portable device overvoltage suppression.
For engineers reviewing the NZ9F2V4ST5G datasheet, pinout, applications, or equivalent options, key selection criteria include its tight 2.4 V Zener voltage tolerance, low-profile SOD-923 mounting compatibility, thermal derating behavior above 25 °C, and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
This Zener diode operates in reverse breakdown mode to clamp voltage transients and stabilize reference nodes. Its 2.4 V nominal Zener voltage is specified at 5 mA test current (IZT), with guaranteed minimum/maximum values of 2.43 V and 2.63 V respectively, and exhibits a negative temperature coefficient of −3.5 mV/°C.
The device features low forward voltage (≤0.9 V @ 10 mA), high ESD robustness (>16 kV HBM), and meets MSL 1 reflow requirements (260 °C peak). Its 100 Ω dynamic impedance at IZT ensures stable regulation under moderate load variation, while 500 °C/W junction-to-ambient thermal resistance defines its power handling limits on FR-5 board.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.43 V to 2.63 V @ IZT = 5 mA - defines clamping threshold accuracy for low-voltage rail protection |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C - maximum continuous power before thermal derating begins |
| Zener Impedance (ZZT) | 100 Ω max @ IZT = 5 mA - determines regulation stiffness against current fluctuations |
| ESD Rating | Class 3 (>16 kV HBM) - enables direct integration into handheld ESD-prone interfaces without external protection |
| Package Dimensions | 1.00 mm × 0.60 mm × 0.40 mm - fits high-density PCB layouts where space is constrained |
| Temperature Coefficient | −3.5 mV/°C @ IZT = 5 mA - quantifies voltage drift with ambient temperature change |
| Reverse Leakage (IR) | 1 μA max @ VR = 1 V - ensures minimal quiescent current in standby mode |
Pinout & Package
Package: SOD-923 (Case 514AB), surface-mount, void-free thermosetting plastic body with 100% matte tin lead finish, MSL 1 compliant, qualified for 260 °C reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener anode connection point | Connected to regulated output node; polarity band identifies cathode for correct orientation during placement |
| 2 (Anode) | Zener cathode connection point | Typically tied to ground or lower-potential reference; reverse-biased operation requires this terminal at lower voltage than pin 1 |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener voltage tolerance | ±0.1 V around 2.4 V enables precise 2.5 V rail clamping without additional trimming |
| Ultra-small SOD-923 footprint | 1.00 mm × 0.60 mm area saves >60% board space vs. SOD-123 in portable designs |
| High ESD immunity | Class 3 (>16 kV HBM) eliminates need for discrete TVS in front-end I/O protection circuits |
| AEC-Q101 qualification | Validated for automotive subsystems requiring extended temperature and reliability compliance |
| Pb-free construction | Meets RoHS Directive 2011/65/EU and JEDEC J-STD-020 MSL 1 reflow standards |
Applications
| Smartphone Power Management | USB-C Port Protection |
|---|---|
Use Scenario: Clamping 2.5 V LDO output rails during hot-plug events and battery voltage sag. IC Role / Device Role / Timing Role: Zener voltage regulator providing overvoltage protection and reference stabilization. Use Value: Prevents damage to PMIC and baseband ICs by limiting transient excursions to ≤2.63 V with <100 ns response. | Use Scenario: Protecting USB-C CC logic pins from ESD and VBUS coupling during cable insertion. IC Role / Device Role / Timing Role: Bidirectional ESD suppressor and DC clamp for 2.4 V logic-level signaling lines. Use Value: Leverages Class 3 HBM rating and 2.4 V breakdown to absorb >15 kV contact discharge without latch-up. |
| Wearable Sensor Node | Automotive Body Control Module |
Use Scenario: Stabilizing 2.4 V reference for analog sensor ADC inputs in compact hearables. IC Role / Device Role / Timing Role: Precision voltage reference shunt regulator for low-noise signal conditioning. Use Value: Delivers ±0.1 V tolerance and −3.5 mV/°C TC to maintain ADC accuracy across −20 °C to +70 °C. | Use Scenario: Regulating 2.4 V supply for LIN transceiver biasing in door module ECUs. IC Role / Device Role / Timing Role: AEC-Q101-qualified Zener regulator ensuring stable bias under load dump conditions. Use Value: Maintains functional integrity through 125 °C junction temperature and 250 mW pulse dissipation per ISO 7637-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C2V4 | 2.4 V nominal, ±5% tolerance (vs. ±0.1 V), SOD-523 package (1.2 × 0.8 mm) | Higher voltage tolerance reduces precision in reference applications; larger footprint limits ultra-dense layouts | Select when cost sensitivity outweighs tight regulation needs and board space permits larger package |
| MMSZ4676T1G | 2.4 V nominal, ±5% tolerance, SOD-123 package (3.7 × 1.6 mm), 500 mW rating | Double power rating supports higher surge energy but occupies >6× more area than SOD-923 | Choose for industrial environments requiring higher pulse power margin where size is secondary |
Compared with BZX584C2V4 and MMSZ4676T1G, NZ9F2V4ST5G delivers superior voltage accuracy and smallest PCB footprint-critical for smartphone and wearable designs-but requires tighter layout control due to its miniature SOD-923 terminals and lower absolute power headroom.
Availability
NZ9F2V4ST5G is available at Aetrix Electronics and suitable for cellular phone power rail protection, USB-C interface clamping, and wearable sensor reference regulation requiring stable component supply across high-volume production cycles.
Supply support for NZ9F2V4ST5G 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 with focus on sustainability and reliability.
The NZ9F series belongs to onsemi's precision Zener regulator product line, engineered specifically for space-constrained, high-reliability voltage reference and transient suppression in portable and automotive electronics.
FAQ
What is the exact Zener voltage range for NZ9F2V4ST5G at 5 mA test current?
The NZ9F2V4ST5G has a guaranteed Zener voltage range of 2.43 V to 2.63 V when tested at IZT = 5 mA and TA = 25 °C. This ±0.1 V tolerance is tighter than standard Zeners and enables accurate clamping in 2.5 V system rails. The device maintains this specification across its qualified operating temperature range, and the NZ9F2V4ST5G datasheet confirms these values in Table 1 on page 3.
Is NZ9F2V4ST5G suitable for automotive applications?
Yes, NZ9F2V4ST5G is AEC-Q101 qualified and PPAP capable, making it suitable for automotive body electronics and infotainment systems. The SZNZ9F2V4ST5G variant explicitly denotes automotive qualification, and the NZ9F2V4ST5G shares identical electrical and mechanical specs. Its −65 °C to +150 °C junction temperature range and MSL 1 reflow profile support under-hood and dashboard deployment scenarios.
What is the thermal derating behavior of NZ9F2V4ST5G above 25 °C?
NZ9F2V4ST5G derates linearly at 2.0 mW/°C above 25 °C ambient temperature, based on its 500 °C/W junction-to-ambient thermal resistance. At 75 °C ambient, its maximum allowable power drops to 150 mW. This derating curve is shown in Figure 2 of the official onsemi datasheet, and must be applied in thermal design for sustained operation in enclosed or high-temperature environments.
Does NZ9F2V4ST5G have polarity marking, and how is it oriented on the PCB?
Yes, NZ9F2V4ST5G uses Style 1 marking with a polarity band indicating pin 1 (cathode); pin 2 is the anode. The cathode (pin 1) connects to the regulated node, while the anode (pin 2) connects to ground or lower potential. This orientation is critical for proper reverse-bias operation. The SOD-923 package outline drawing (Case 514AB) and marking diagram on page 4 of the NZ9F2V4ST5G datasheet confirm this configuration.
What is the maximum capacitance of NZ9F2V4ST5G at 0 V reverse bias and 1 MHz?
The maximum junction capacitance of NZ9F2V4ST5G is 210 pF when measured at VR = 0 V and f = 1 MHz, as specified in the Electrical Characteristics table on page 3 of the datasheet. This value impacts high-frequency noise filtering performance and should be considered when using NZ9F2V4ST5G in RF-sensitive signal paths or fast-switching power domains.
NZ9F2V4ST5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-923
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.53 V
- Tolerance:
- ±4%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 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
NZ9F2V4ST5G FAQ
1.How can I place an order for NZ9F2V4ST5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ9F2V4ST5G 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 NZ9F2V4ST5G reliable?
The price and inventory of NZ9F2V4ST5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ9F2V4ST5G is usually 5 days.
3.What payment methods are accepted for NZ9F2V4ST5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ9F2V4ST5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ9F2V4ST5G?
NZ9F2V4ST5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ9F2V4ST5G 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 NZ9F2V4ST5G?
For technical support, including NZ9F2V4ST5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ9F2V4ST5G requirements.
6.How does Aetrix verify that NZ9F2V4ST5G is sourced from the original manufacturer or authorized distributors?
All NZ9F2V4ST5G 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 NZ9F2V4ST5G meets industry standards.
7.What is the process for return or replacement of NZ9F2V4ST5G?
All NZ9F2V4ST5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ9F2V4ST5G, 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 NZ9F2V4ST5G part is unused and in its original packaging.
Return procedure for NZ9F2V4ST5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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