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onsemi NZ9F20VT5G
- Part No.:
- NZ9F20VT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-923
- Datasheet:
-
NZ9F20VT5G.pdf
- Description:
- DIODE ZENER 20V 250MW SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:19,672
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Product details
Overview
NZ9F20VT5G from onsemi is a 20 V ±5% Zener diode in SOD-923 package, rated for 250 mW steady-state power dissipation, with 55 Ω maximum Zener impedance at 5 mA test current and 0.1 µA reverse leakage at 15.4 V, used for precision voltage clamping and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the NZ9F20VT5G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal derating behavior, ESD robustness (Class 3 HBM >16 kV), and real-world use context for compact DC rail stabilization and transient suppression.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to maintain stable voltage across its terminals under varying load and temperature conditions. Its 19.0–21.0 V nominal Zener voltage is specified at 5 mA test current with ±5% tolerance and +15.4 mV/°C temperature coefficient.
The SOD-923 package enables ultra-low profile mounting (0.40 mm height) and high-density PCB integration, while its 500 °C/W junction-to-ambient thermal resistance requires careful power derating above 25 °C per the published curve - 2.0 mW/°C reduction beyond ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 19.0–21.0 V @ IZT = 5 mA - defines clamping threshold for overvoltage protection circuits |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C - sets maximum continuous DC power handling on FR-5 board |
| Zener Impedance (ZZT) | 55 Ω max @ IZT = 5 mA - determines regulation stiffness and AC ripple rejection capability |
| Reverse Leakage (IR) | 0.1 µA @ VR = 15.4 V - ensures minimal standby current in low-power shutdown states |
| ESD Rating | Class 3 (>16 kV) HBM - supports direct handling in consumer assembly without additional ESD safeguards |
| Capacitance (C) | 55 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and signal integrity in RF-adjacent layouts |
| Package | SOD-923 (1.00 × 0.60 × 0.40 mm) - enables placement in <1.0 mm pitch areas on mobile PCBs |
Pinout & Package
SOD-923 is a surface-mount, two-terminal package with cathode marked by polarity band. Body dimensions: 1.00 mm × 0.60 mm × 0.40 mm. Mounting position: any orientation. Reflow compatible up to 260 °C (MSL 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased terminal during Zener operation |
| 2 (Unmarked End) | Anode | Connected to ground or lower-potential rail; completes conduction path during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Pb-Free, Halogen-Free, RoHS Compliant | Meets global environmental compliance requirements without requiring special disposal or handling protocols |
| AEC-Q101 Qualified (SZ prefix variants) | Validated for automotive-grade reliability - though NZ9F20VT5G itself carries no SZ prefix, it shares identical construction and qualification baseline |
| Low Profile (0.40 mm height) | Enables stacking under shields or placement beneath connectors in ultra-thin handheld designs |
| High ESD Robustness (>16 kV HBM) | Eliminates need for external TVS staging in many consumer interface lines (e.g., USB D+/D−, I²C) |
| Stable Zener Voltage Tempco (+15.4 mV/°C) | Supports predictable drift compensation in temperature-sensitive analog front-ends |
Applications
| Smartphone Power Rail Protection | Wearable Sensor Biasing |
|---|---|
|
Use Scenario: Clamping 3.3 V or 5 V supply rails against ESD transients and load-dump spikes in smartphone mainboard power domains. IC Role / Device Role / Timing Role: Two-terminal passive voltage clamp placed directly across IC supply pins. Use Value: Prevents latch-up or damage to PMICs and application processors using only 1.0 × 0.6 mm of board area. |
Use Scenario: Providing stable bias voltage for MEMS accelerometers and optical heart-rate sensors in fitness bands. IC Role / Device Role / Timing Role: Low-current Zener reference replacing higher-power regulators where <100 µA quiescent current is critical. Use Value: Delivers 20 V reference stability with 0.1 µA leakage, extending battery life in multi-week wearable deployments. |
| USB-C Port Overvoltage Clamp | Industrial IoT Node Voltage Monitoring |
|
Use Scenario: Protecting USB-C CC logic and VCONN circuitry from accidental 20 V adapter misconnection or surge events. IC Role / Device Role / Timing Role: Fast-reacting shunt element triggered when VIN exceeds 21 V, diverting fault current to ground. Use Value: Achieves sub-10 ns response with 55 Ω dynamic impedance, limiting peak voltage to <22.5 V during 1 A surge. |
Use Scenario: Monitoring 24 V industrial bus voltage via resistive divider, where Zener provides precise upper-rail reference for ADC input scaling. IC Role / Device Role / Timing Role: Precision voltage reference enabling ±1% bus measurement accuracy over −40 to +85 °C. Use Value: Maintains 19.0–21.0 V regulation with +15.4 mV/°C tempco, reducing calibration frequency in field-deployed gateways. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C20LT1G | Same 20 V nominal, but 300 mW rating and SOD-523 package (1.2 × 0.8 mm); 70 Ω ZZT | Larger footprint and higher power - better for 10–20 mA clamp loads, less suitable for <1 mm² area budgets | Select when higher surge energy absorption is required and board space allows 2× larger footprint |
| MMSZ5248ET1G | 20 V nominal, 500 mW rating, SOD-123 package (3.7 × 1.6 mm); 23 Ω ZZT; no AEC-Q101 option | Substantially larger size and lower impedance - suited for industrial power supplies, not portable devices | Choose for legacy designs needing proven reliability at higher currents, where 3.7 mm length is acceptable |
Compared with BZX584C20LT1G and MMSZ5248ET1G, NZ9F20VT5G offers the smallest footprint (1.0 × 0.6 mm) and highest density compatibility for modern portable electronics, trading off some power handling and impedance performance for strict space constraints.
Availability
NZ9F20VT5G is available at Aetrix Electronics and suitable for smartphone power rail protection, wearable sensor biasing, USB-C port overvoltage clamp, and industrial IoT node voltage monitoring requiring stable component supply and long-term production continuity.
Supply support for NZ9F20VT5G 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 edge applications.
NZ9F20VT5G belongs to the NZ9FxxxT5G series of miniature Zener regulators designed specifically for space-constrained, high-reliability portable electronics requiring low-profile, high-ESD-tolerance voltage clamping.
FAQ
What is the Zener voltage tolerance for NZ9F20VT5G?
The NZ9F20VT5G has a Zener voltage range of 19.0 V to 21.0 V at 5 mA test current, corresponding to ±5% tolerance about the nominal 20 V rating. This tolerance is guaranteed across manufacturing lots and validated per onsemi's production test flow. The NZ9F20VT5G maintains this specification under standard ambient conditions (25 °C) and conforms to JEDEC JESD22-A114 reliability testing.
Does NZ9F20VT5G support automotive applications?
NZ9F20VT5G itself does not carry the SZ prefix and is not individually AEC-Q101 certified; however, it shares identical die, packaging, and process with the SZNZ9F20VT5G variant, which is fully AEC-Q101 qualified and PPAP capable. For automotive use, designers should specify SZNZ9F20VT5G - the NZ9F20VT5G remains suitable for industrial and consumer applications requiring equivalent performance.
What is the maximum operating temperature for NZ9F20VT5G?
The NZ9F20VT5G is rated for junction and storage temperatures from −65 °C to +150 °C. Its thermal resistance is 500 °C/W, so at 250 mW dissipation, junction temperature rise is 125 °C above ambient - meaning maximum safe ambient temperature is 25 °C for full-power operation. Derating to 2.0 mW/°C above 25 °C ensures safe operation up to +125 °C ambient at reduced power.
How is polarity identified on the NZ9F20VT5G SOD-923 package?
The NZ9F20VT5G uses Style 1 marking per onsemi's mechanical drawing: Pin 1 (cathode) is identified by a visible polarity band at one end of the SOD-923 body. The unmarked end is the anode. This matches the standard SOD-923 pinout definition and is confirmed in the device marking diagram on page 3 of the official datasheet. No rotation or alternate marking applies to NZ9F20VT5G.
Is NZ9F20VT5G compatible with lead-free reflow processes?
Yes, NZ9F20VT5G is Pb-Free and qualified for lead-free reflow with a maximum peak temperature of 260 °C, meeting IPC/JEDEC J-STD-020 moisture sensitivity level (MSL) 1 requirements. The matte tin lead finish and thermosetting epoxy case ensure reliable solder joint formation without voiding or delamination under standard reflow profiles used for Class 3 electronics assembly.
NZ9F20VT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-923
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 20 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 15.4 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
NZ9F20VT5G FAQ
1.How can I place an order for NZ9F20VT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ9F20VT5G 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 NZ9F20VT5G reliable?
The price and inventory of NZ9F20VT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ9F20VT5G is usually 5 days.
3.What payment methods are accepted for NZ9F20VT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ9F20VT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ9F20VT5G?
NZ9F20VT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ9F20VT5G 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 NZ9F20VT5G?
For technical support, including NZ9F20VT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ9F20VT5G requirements.
6.How does Aetrix verify that NZ9F20VT5G is sourced from the original manufacturer or authorized distributors?
All NZ9F20VT5G 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 NZ9F20VT5G meets industry standards.
7.What is the process for return or replacement of NZ9F20VT5G?
All NZ9F20VT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ9F20VT5G, 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 NZ9F20VT5G part is unused and in its original packaging.
Return procedure for NZ9F20VT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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