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onsemi NZ8F24VMX2WT5G
- Part No.:
- NZ8F24VMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
NZ8F24VMX2WT5G.pdf
- Description:
- DIODE ZENER 24V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:7,708
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Product details
Overview
NZ8F24VMX2WT5G from onsemi is a 24 V ±5% standard-tolerance Zener diode in X2DFNW2 (0402) wettable flank package, rated for 250 mW dissipation on FR-4 board, with 70 Ω dynamic impedance at 5 mA and 0.1 µA leakage at 18.9 V reverse bias. It provides precision voltage regulation in space-constrained power rail protection circuits.
For engineers reviewing the NZ8F24VMX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±5%), low-profile 0.40 mm height, AOI-compatible wettable flanks, AEC-Q101 qualification eligibility via SZ prefix, and thermal resistance of 415 °C/W on minimal pad layout.
Technical Context
This unidirectional Zener diode operates in reverse breakdown to clamp transient overvoltages and stabilize reference nodes. Its 22.8 V to 25.2 V nominal Zener range at 5 mA test current ensures stable regulation under typical bias conditions, while the 0.1 µA leakage at VR = 18.9 V supports low-power standby integrity.
The X2DFNW2 package features solderable side-wettable flanks for automated optical inspection and achieves 250 mW power dissipation on standard FR-4 with 1 oz. copper and minimum pad layout, derating linearly at 1.5 mW/°C above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22.8 V min / 25.2 V max @ IZT = 5 mA - defines clamping threshold for 24 V rail protection |
| Zener Impedance (ZZT) | 70 Ω max @ IZT = 5 mA - determines regulation stiffness under load variation |
| Reverse Leakage (IR) | 0.1 µA max @ VR = 18.9 V - ensures minimal quiescent current in battery-backed systems |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C on FR-4 min-pad - sets maximum continuous clamping energy |
| Capacitance (C) | 50 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering capability |
| Junction Temp Range | −65 °C to +150 °C - supports operation in automotive under-hood and industrial environments |
| Package | X2DFNW2 (0402, 1.00 × 0.60 × 0.37 mm) - enables ultra-compact placement on dense PCBs |
Pinout & Package
The NZ8F24VMX2WT5G uses a 2-terminal X2DFNW2 surface-mount package with wettable flank geometry. Cathode is marked with polarity indicator on top surface; anode is unmarked.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to regulated node; reverse-biased during clamping; carries full surge current |
| 2 (Anode) | Zener anode terminal | Connected to ground or lower-potential rail; completes conduction path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Wettable flank leads | Enables 100% automated optical inspection (AOI) of solder joints without X-ray |
| Low body height | 0.40 mm max - fits beneath low-clearance shields and stacked components |
| Pb-free, Halogen-free | RoHS-compliant construction with no BFRs - meets global environmental compliance mandates |
| AEC-Q101 readiness | SZ-prefix variant available - supports automotive control unit qualification with PPAP capability |
| Tight thermal resistance control | 415 °C/W junction-to-ambient on minimal FR-4 pad - enables predictable thermal design |
Applications
| Automotive Body Control Module | USB-C Power Delivery Clamp |
|---|---|
Use Scenario: Protecting 24 V supply rails in door module ECUs exposed to load dump transients up to 40 V. IC Role / Device Role / Timing Role: Primary overvoltage clamp at input filter stage, absorbing ISO 7637-2 Pulse 5a energy. Use Value: 22.8–25.2 V regulation window aligns with 24 V system tolerance, while 70 Ω ZZT limits clamping voltage rise under 100 mA surge. |
Use Scenario: Stabilizing VCONN reference in USB-C receptacles where 24 V auxiliary power may experience ripple or overshoot. IC Role / Device Role / Timing Role: Shunt regulator maintaining precise 24 V reference for PD controller biasing. Use Value: 0.1 µA leakage at 18.9 V ensures <1 µW standby loss; 50 pF capacitance avoids interfering with 100 MHz CC line signaling. |
| Industrial Sensor Node Supply | Medical Portable Monitor Backup Rail |
Use Scenario: Regulating isolated 24 V DC-DC output feeding analog front-end circuitry in vibration sensors. IC Role / Device Role / Timing Role: Post-regulator shunt element suppressing switching noise and line transients. Use Value: 250 mW rating sustains continuous 10.4 mA clamp current; 0.40 mm height allows placement under sensor housing. |
Use Scenario: Providing fail-safe 24 V backup to critical display logic during main power interruption in portable ultrasound units. IC Role / Device Role / Timing Role: Standby-mode voltage reference ensuring immediate reactivation when primary supply recovers. Use Value: −65 °C to +150 °C operating range supports sterilization cycles and battery-operated field use; RoHS compliance meets IEC 60601-1. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5249BS-7-F | 24 V ±5%, SOD-523 package (1.2 × 0.8 × 0.6 mm), 350 mW PD, 30 Ω ZZT | Larger footprint and higher power; less suitable for ultra-dense layouts | Preferred when higher surge energy handling is required and board area permits |
| BZX584C24LT1G | 24 V ±5%, SOD-523 package, 200 mW PD, 100 Ω ZZT, 0.5 µA IR @ 19.4 V | Higher leakage and lower power rating; no wettable flank support | Acceptable for cost-sensitive non-AOI production where 0.5 µA leakage is tolerable |
Compared with MMBZ5249BS-7-F and BZX584C24LT1G, the NZ8F24VMX2WT5G offers superior AOI compatibility and lower profile (0.40 mm vs. ≥0.6 mm), tighter thermal resistance control on minimal pads, and lower leakage-making it optimal for space- and reliability-critical 24 V rail protection in automotive and portable medical designs.
Availability
NZ8F24VMX2WT5G is available at Aetrix Electronics and suitable for automotive body control modules, USB-C power delivery systems, and industrial sensor node supplies requiring stable component supply, consistent Zener voltage tolerance, and AOI-ready packaging.
Supply support for NZ8F24VMX2WT5G 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NZ8F Series is part of onsemi's precision discrete portfolio, engineered specifically for compact, high-reliability voltage regulation in space-constrained and thermally demanding environments such as automotive ECUs and portable medical devices.
FAQ
What is the Zener voltage tolerance of NZ8F24VMX2WT5G?
The NZ8F24VMX2WT5G has a nominal Zener voltage range of 22.8 V to 25.2 V at IZT = 5 mA, corresponding to ±5% tolerance. This is specified in the Electrical Characteristics table on page 2 of the official onsemi datasheet (Rev. 4, November 2025) and applies to the standard-tolerance MX2W series. The device marking "A4" identifies this specific variant within the NZ8F family.
Does NZ8F24VMX2WT5G support automated optical inspection (AOI)?
Yes, NZ8F24VMX2WT5G uses the X2DFNW2 package with wettable flank geometry, explicitly designed for reliable AOI of solder joints without requiring X-ray verification. This feature is highlighted in the datasheet's Specification Features section and confirmed by the package outline diagram (Case 711BG) showing solderable side terminations.
What is the maximum power dissipation for NZ8F24VMX2WT5G on a standard PCB?
NZ8F24VMX2WT5G delivers 250 mW total device dissipation on FR-4 board with minimum pad layout and 1 oz. copper at TA = 25 °C, derating at 1.5 mW/°C above that temperature. This rating assumes the layout defined in Note 1 of the Maximum Ratings table and is distinct from the 500 mW rating achievable with larger 150 mm² copper areas.
Is NZ8F24VMX2WT5G qualified for automotive applications?
The base NZ8F24VMX2WT5G is not AEC-Q101 qualified, but its SZ-prefix variant (SZNZ8F24VMX2WT5G) is AEC-Q101 qualified and PPAP capable, as stated in the datasheet's Specification Features and DEVICE MARKING INFORMATION sections. Both share identical electrical specs and X2DFNW2 packaging.
What is the reverse leakage current specification for NZ8F24VMX2WT5G?
NZ8F24VMX2WT5G specifies a maximum reverse leakage current (IR) of 0.1 µA at VR = 18.9 V, per the Electrical Characteristics table on page 2. This low leakage supports energy-sensitive applications such as battery-backed systems and always-on sensor nodes where standby current must be minimized.
NZ8F24VMX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 24 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 70 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 18.9 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 2-X2DFNW (1x0.6)
NZ8F24VMX2WT5G FAQ
1.How can I place an order for NZ8F24VMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ8F24VMX2WT5G 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 NZ8F24VMX2WT5G reliable?
The price and inventory of NZ8F24VMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ8F24VMX2WT5G is usually 5 days.
3.What payment methods are accepted for NZ8F24VMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ8F24VMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ8F24VMX2WT5G?
NZ8F24VMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ8F24VMX2WT5G 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 NZ8F24VMX2WT5G?
For technical support, including NZ8F24VMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ8F24VMX2WT5G requirements.
6.How does Aetrix verify that NZ8F24VMX2WT5G is sourced from the original manufacturer or authorized distributors?
All NZ8F24VMX2WT5G 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 NZ8F24VMX2WT5G meets industry standards.
7.What is the process for return or replacement of NZ8F24VMX2WT5G?
All NZ8F24VMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ8F24VMX2WT5G, 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 NZ8F24VMX2WT5G part is unused and in its original packaging.
Return procedure for NZ8F24VMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZ8F24VMX2WT5G Tags
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