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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

onsemi NZ9F22VT5G

Name: NZ9F22VT5G
Brand: onsemi
SKU: NZ9F22VT5G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NZ9F22VT5G

Manufacturer:: onsemi

Category:: Single Zener Diodes

Package:: SOD-923

Datasheet:: NZ9F22VT5G.pdf

Description:: DIODE ZENER 22V 250MW SOD923

Quantity:: RFQ Add To RFQ list

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Inventory:7,790

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Product details

Overview

NZ9F22VT5G from onsemi is a 22 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 16.8 V, used for precision voltage clamping and overvoltage protection in space-constrained portable electronics.

For engineers reviewing the NZ9F22VT5G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal derating behavior, ESD robustness (Class 3 HBM >16 kV), and direct-fit alternatives for compact DC rail stabilization and transient suppression in high-density PCBs.

Technical Context

This device operates as a two-terminal voltage reference diode with sharp reverse breakdown at nominal 22 V, specified under pulsed 5 mA test current at 25 °C ambient. Its low 0.40 mm body height and 1.00 mm × 0.60 mm footprint enable integration into ultra-thin mobile platforms where board area and profile are critical constraints.

The NZ9F22VT5G exhibits a +15.4 mV/°C temperature coefficient of V_Z, enabling predictable drift compensation in bias networks. It meets AEC-Q101 stress requirements when ordered with SZ prefix, though NZ9F22VT5G itself is a standard industrial-grade variant without automotive qualification.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	20.9 V to 23.1 V @ I_ZT = 5 mA - defines clamping threshold range for overvoltage protection circuits
Power Dissipation (P_D)	250 mW @ T_A = 25 °C - sets maximum continuous DC power handling on FR-5 board
Zener Impedance (Z_ZT)	≤55 Ω @ I_ZT = 5 mA - determines regulation stiffness and AC ripple rejection capability
Reverse Leakage (I_R)	≤0.1 µA @ V_R = 16.8 V - ensures minimal standby current in always-on bias networks
ESD Rating	Class 3 (>16 kV) per HBM - provides robust handling during manual assembly and board-level ESD events
Package	SOD-923 (Case 514AB) - 1.00 mm × 0.60 mm × 0.37 mm surface-mount outline for high-density routing
Junction Temp Range	−65 °C to +150 °C - supports operation in extended industrial and consumer environments

Pinout & Package

SOD-923 package: 2-terminal surface-mount diode 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.

Pin/Terminal	Circuit Role	Design Meaning
1 (Banded End)	Cathode	Connected to regulated output node; accepts reverse bias for Zener conduction
2 (Unmarked End)	Anode	Connected to ground or lower-potential rail; completes current path during clamping

Key Features

Feature	Design Value
Low-profile SOD-923 package	0.37 mm height enables stacking under connectors or beneath shields in slim devices
Stable 22 V regulation tolerance	±5% V_Z window ensures predictable clamping without post-production trimming
High ESD immunity	Class 3 HBM (>16 kV) eliminates need for external ESD protection in many handheld designs
Pb-free, RoHS-compliant construction	Meets global environmental compliance without reflow or reliability trade-offs
MSL 1 rating	Unlimited floor life at ≤30 °C/60% RH - simplifies inventory management and JIT assembly

Applications

Smartphone Power Rail Protection	USB-C Port Overvoltage Clamp
Use Scenario: Clamps transient surges on 3.3 V or 5 V system rails during hot-plug or ESD events in smartphone mainboard design. IC Role / Device Role / Timing Role: Two-terminal passive shunt regulator acting as first-line voltage clamp before LDO or PMIC input. Use Value: Prevents latch-up or damage to downstream ICs using only 1.00 mm × 0.60 mm board area and no external bias components.	Use Scenario: Suppresses 20–30 V transients induced on USB-C CC lines or VBUS during cable insertion or connector arcing. IC Role / Device Role / Timing Role: Fast-response Zener clamp placed directly at connector footprint to limit voltage before protection IC input. Use Value: Achieves sub-100 ns response with <0.1 µA leakage, preserving CC line signal integrity while meeting IEC 61000-4-2 Level 4.
Wearable Sensor Bias Reference	IoT Node Battery Monitoring
Use Scenario: Provides stable 22 V reference for high-side current sense amplifier biasing in compact fitness tracker battery charging circuitry. IC Role / Device Role / Timing Role: Precision voltage reference source for op-amp feedback networks requiring low-drift, low-current excitation. Use Value: Enables accurate 0.5% current measurement across −20 °C to +70 °C using only 55 Ω dynamic impedance and +15.4 mV/°C TC.	Use Scenario: Monitors Li-ion stack voltage in 6S battery packs by scaling 22 V Zener output through resistor divider into ADC input. IC Role / Device Role / Timing Role: Fixed-voltage reference for analog front-end scaling, replacing larger SOIC or SOT-23 solutions. Use Value: Reduces BOM count and PCB area by 65% versus SOT-23 Zeners while maintaining 20.9–23.1 V tolerance for ±2% SOC estimation.

Smartphone Power Rail Protection

USB-C Port Overvoltage Clamp

Use Scenario: Clamps transient surges on 3.3 V or 5 V system rails during hot-plug or ESD events in smartphone mainboard design.

IC Role / Device Role / Timing Role: Two-terminal passive shunt regulator acting as first-line voltage clamp before LDO or PMIC input.

Use Value: Prevents latch-up or damage to downstream ICs using only 1.00 mm × 0.60 mm board area and no external bias components.

Use Scenario: Suppresses 20–30 V transients induced on USB-C CC lines or VBUS during cable insertion or connector arcing.

IC Role / Device Role / Timing Role: Fast-response Zener clamp placed directly at connector footprint to limit voltage before protection IC input.

Use Value: Achieves sub-100 ns response with <0.1 µA leakage, preserving CC line signal integrity while meeting IEC 61000-4-2 Level 4.

Wearable Sensor Bias Reference

IoT Node Battery Monitoring

Use Scenario: Provides stable 22 V reference for high-side current sense amplifier biasing in compact fitness tracker battery charging circuitry.

IC Role / Device Role / Timing Role: Precision voltage reference source for op-amp feedback networks requiring low-drift, low-current excitation.

Use Value: Enables accurate 0.5% current measurement across −20 °C to +70 °C using only 55 Ω dynamic impedance and +15.4 mV/°C TC.

Use Scenario: Monitors Li-ion stack voltage in 6S battery packs by scaling 22 V Zener output through resistor divider into ADC input.

IC Role / Device Role / Timing Role: Fixed-voltage reference for analog front-end scaling, replacing larger SOIC or SOT-23 solutions.

Use Value: Reduces BOM count and PCB area by 65% versus SOT-23 Zeners while maintaining 20.9–23.1 V tolerance for ±2% SOC estimation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener voltage regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX584C22LT1G	Same 22 V nominal, but ±5% tolerance, 200 mW rating, SOD-523 package (0.8 × 0.6 × 0.5 mm)	Lower power rating limits use in sustained surge scenarios; smaller pad layout required	Select when board space is tighter than 1.00 mm × 0.60 mm and peak power stays below 200 mW
MMSZ5248ET1G	22 V nominal, ±5%, 500 mW rating, SOD-123 package (3.7 × 1.6 × 1.1 mm)	Larger footprint and higher thermal mass suit higher-duty-cycle clamping but occupy 6× more area	Choose when thermal margin is critical and board real estate allows ≥3.7 mm × 1.6 mm placement

Compared with BZX584C22LT1G and MMSZ5248ET1G, the NZ9F22VT5G uniquely balances ultra-compact size (SOD-923), 250 mW capability, and Class 3 ESD robustness-making it optimal for next-gen portable electronics where volume, profile, and reliability must coexist.

Availability

NZ9F22VT5G is available at Aetrix Electronics and suitable for smartphone power rail protection, USB-C port overvoltage clamp, and wearable sensor bias reference requiring stable component supply with full traceability and lifecycle support.

Supply support for NZ9F22VT5G 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 supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and portable electronics.

The NZ9F22VT5G belongs to onsemi's NZ9F series of miniature Zener regulators, engineered specifically for space-constrained voltage reference and transient suppression in high-density portable and wearable systems.

FAQ

What is the Zener voltage tolerance of NZ9F22VT5G?

The NZ9F22VT5G has a guaranteed Zener voltage range of 20.9 V to 23.1 V at 5 mA test current and 25 °C ambient, corresponding to a ±5% tolerance around the nominal 22 V rating. This tolerance is measured under pulsed conditions to avoid self-heating effects and is validated per onsemi's published Electrical Characteristics table on page 3 of the datasheet.

Does NZ9F22VT5G meet automotive qualification standards?

No, NZ9F22VT5G is not AEC-Q101 qualified. The SZ-prefix variants (e.g., SZNZ9F22VT5G) are the automotive-grade versions that meet AEC-Q101 and support PPAP. NZ9F22VT5G is an industrial-grade part intended for consumer and portable electronics applications where extended temperature operation and reliability are required-but formal automotive certification is not needed.

What is the thermal derating behavior of NZ9F22VT5G above 25 °C?

NZ9F22VT5G derates linearly at 2.0 mW/°C above 25 °C ambient, based on its 250 mW maximum power rating on FR-5 board. At 75 °C ambient, its usable power drops to 150 mW; at 125 °C, it falls to 50 mW. This derating curve is defined in Figure 1 of the datasheet and assumes standard minimum copper pad layout per note 1.

Can NZ9F22VT5G be used in place of a 24 V Zener diode?

No, NZ9F22VT5G is specifically rated for 22 V nominal Zener voltage (20.9–23.1 V range); it is not interchangeable with 24 V Zeners such as NZ9F24VT5G (22.8–25.2 V). Substituting NZ9F22VT5G for a 24 V part would result in premature clamping and potential system malfunction due to ~2 V lower breakdown threshold.

What marking code identifies NZ9F22VT5G on the SOD-923 package?

NZ9F22VT5G is marked with "Y*" on the SOD-923 body, where "Y" denotes the 22 V device code and "*" indicates rotation (90° or 270° orientation per datasheet footnote). The cathode is identified by a polarity band adjacent to pin 1, consistent with Style 1 marking diagram in the mechanical drawings.

NZ9F22VT5G Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: SOD-923

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 22 V

Tolerance:: ±5%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 55 Ohms

Current - Reverse Leakage @ Vr:: 100 nA @ 16.8 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

NZ9F22VT5G FAQ

1.How can I place an order for NZ9F22VT5G through Aetrix?

Please submit a Request for Quotation (RFQ) for NZ9F22VT5G 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 NZ9F22VT5G reliable?

The price and inventory of NZ9F22VT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ9F22VT5G is usually 5 days.

3.What payment methods are accepted for NZ9F22VT5G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ9F22VT5G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NZ9F22VT5G?

NZ9F22VT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NZ9F22VT5G 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 NZ9F22VT5G?

For technical support, including NZ9F22VT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ9F22VT5G requirements.

6.How does Aetrix verify that NZ9F22VT5G is sourced from the original manufacturer or authorized distributors?

All NZ9F22VT5G 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 NZ9F22VT5G meets industry standards.

7.What is the process for return or replacement of NZ9F22VT5G?

All NZ9F22VT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ9F22VT5G, 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 NZ9F22VT5G part is unused and in its original packaging.

Return procedure for NZ9F22VT5G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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