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onsemi NZ8F4V3MX2WT5G
- Part No.:
- NZ8F4V3MX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
NZ8F4V3MX2WT5G.pdf
- Description:
- DIODE ZENER 4.3V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:5,736
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Product details
Overview
NZ8F4V3MX2WT5G from onsemi is a 4.3 V ±5% Zener diode in X2DFNW2 (0402) wettable flank package, rated for 250 mW dissipation at 25 °C on FR-4 board with 1 oz. Cu, featuring 5 Ω dynamic impedance at 5 mA test current and 5 µA leakage at 1 V reverse bias - used for precision voltage clamping in space-constrained portable power rails.
For engineers reviewing the NZ8F4V3MX2WT5G 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 210 pF capacitance at 0 V bias for ESD-sensitive signal line protection.
Technical Context
This device operates as a unidirectional voltage regulator in reverse-bias mode, with nominal Zener voltage of 4.3 V defined at 5 mA test current (IZT). Its thermal resistance is 415 °C/W (Junction-to-Ambient, FR-4 minimum pad), and it supports non-repetitive peak reverse power up to 40 W for transient suppression.
The NZ8F4V3MX2WT5G exhibits a typical temperature coefficient near 0 mV/°C (per Figure 3/4), enabling stable regulation across −65 °C to +150 °C operating range. It delivers forward voltage ≤0.9 V at 10 mA, and its 210 pF junction capacitance at 0 V bias makes it suitable for low-frequency clamping rather than high-speed data line protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.09 V to 4.52 V at IZT = 5 mA - defines clamping threshold for 3.3 V rail overvoltage protection |
| Power Dissipation (PD) | 250 mW @ 25 °C on FR-4 (1 oz. Cu, min pad) - sets continuous DC clamp capability without forced cooling |
| Zener Impedance (ZZT) | 100 Ω max @ IZT = 5 mA - determines regulation stiffness under varying load current |
| Leakage Current (IR) | 5 µA max @ VR = 1 V - ensures minimal quiescent current draw in standby power domains |
| Junction Capacitance (C) | 210 pF @ VR = 0 V, f = 1 MHz - limits usable bandwidth to <1 MHz for analog signal clamping |
| Package | X2DFNW2 (0402, 1.00 × 0.60 × 0.37 mm) with wettable flanks - enables automated optical inspection and fine-pitch PCB assembly |
| AEC-Q101 Eligibility | SZ-prefix variant available - supports automotive control unit designs requiring PPAP documentation and site-specific change control |
Pinout & Package
X2DFNW2 surface-mount package: 0402 inch (1.00 mm × 0.60 mm) footprint, 0.40 mm body height, wettable flank side walls for solder joint inspection. Cathode marked with band on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to regulated voltage node; reverse-bias anode-to-cathode establishes clamping action |
| 2 (Anode) | Zener anode terminal | Typically grounded or tied to lower potential reference; completes current path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Wettable flank package | Enables 100% automated optical inspection (AOI) of solder fillets on 0402 footprints without X-ray |
| Low profile (0.40 mm height) | Permits use in ultra-thin handheld devices and stacked PCB assemblies where Z-height is constrained |
| 250 mW power rating | Supports sustained clamping of moderate-energy transients (e.g., IEC 61000-4-5 Level 2) on 3.3 V logic rails |
| Pb-Free, Halogen-Free/BFR-Free | Meets RoHS Directive 2011/65/EU and JEDEC JS709C material composition requirements |
| −65 °C to +150 °C operation | Validated for under-hood automotive modules and industrial controllers exposed to wide ambient swings |
Applications
| USB Power Delivery Clamp | Automotive Body Control Module |
|---|---|
Use Scenario: Clamping induced voltage spikes on USB Type-C VBUS lines during hot-plug events or ESD discharge. IC Role / Device Role / Timing Role: Unidirectional shunt regulator placed between VBUS and ground to limit transient excursions above 4.3 V. Use Value: Prevents damage to USB PD controller ICs rated for 5.5 V absolute maximum, leveraging 4.09–4.52 V regulation window and 210 pF capacitance compatible with 100 kHz–1 MHz surge profiles. |
Use Scenario: Protecting LIN bus transceiver inputs from load-dump-induced overvoltage in door module ECUs. IC Role / Device Role / Timing Role: Standby-mode Zener clamp on LIN RX pin referenced to local ground, activated only during >4.3 V fault conditions. Use Value: Maintains signal integrity during 12 V system transients by limiting input voltage to transceiver's 5 V tolerant input stage, using 5 µA leakage to avoid loading idle bus states. |
| Portable Medical Sensor Bias | Industrial PLC Analog Input Protection |
Use Scenario: Stabilizing bias voltage for low-power op-amp front-ends in battery-operated pulse oximeters. IC Role / Device Role / Timing Role: Precision shunt reference providing 4.3 V ±5% reference to ADC driver stages. Use Value: Delivers stable regulation across −20 °C to +70 °C operating range with <1 mV/°C drift, enabling <0.1% full-scale error in 12-bit biomedical measurements. |
Use Scenario: Overvoltage protection on 4–20 mA current loop receiver inputs subjected to field wiring faults. IC Role / Device Role / Timing Role: Fail-safe clamp on analog input amplifier's inverting node, diverting excess current to ground before op-amp saturation. Use Value: Limits input excursion to ≤4.52 V during 30 V field faults, preserving amplifier linearity and preventing latch-up in rail-to-rail input stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C4V3 | 4.3 V ±5%, SOD-523 package (1.3 × 0.85 × 0.7 mm), 300 mW rating, 90 Ω ZZT | Larger footprint and higher thermal resistance (500 °C/W); less suitable for ultra-dense layouts | Select when higher power margin or legacy SOD-523 assembly infrastructure exists |
| MMSZ4685 | 4.3 V ±5%, SOD-123 package (3.7 × 1.6 × 1.1 mm), 500 mW rating, 100 Ω ZZT | 3× larger area, no wettable flanks, incompatible with AOI on fine-pitch boards | Choose for cost-sensitive industrial designs where board space and AOI are not constraints |
Compared with BZX584-C4V3 and MMSZ4685, the NZ8F4V3MX2WT5G offers the smallest footprint (0402), lowest profile (0.40 mm), and AOI-ready wettable flanks - critical for miniaturized consumer and automotive electronics where board area and process yield are prioritized over raw power rating.
Availability
NZ8F4V3MX2WT5G is available at Aetrix Electronics and suitable for cellular phone power management, automotive body control units, and handheld medical sensor designs requiring stable component supply with consistent parametric performance across production lots.
Supply support for NZ8F4V3MX2WT5G 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 supplier of energy-efficient semiconductor solutions, headquartered in Phoenix, Arizona, serving automotive, industrial, cloud, and IoT markets with silicon-based power, analog, sensing, and connectivity technologies.
The NZ8F Series targets space-constrained voltage regulation in portable and automotive electronics, delivering tight-tolerance Zener performance in ultra-miniature wettable flank packages optimized for high-yield SMT manufacturing and reliability-critical environments.
FAQ
What is the Zener voltage tolerance of NZ8F4V3MX2WT5G?
The NZ8F4V3MX2WT5G has a Zener voltage range of 4.09 V to 4.52 V at IZT = 5 mA, corresponding to ±5% tolerance about the nominal 4.3 V value. This tolerance is specified per the Standard Tolerance Series (MX2W) in the onsemi datasheet and applies across the full operating temperature range of −65 °C to +150 °C.
Does NZ8F4V3MX2WT5G support automotive qualification?
The NZ8F4V3MX2WT5G itself is not AEC-Q101 qualified, but its SZ-prefix variant (SZNZ8F4V3MX2WT5G) is AEC-Q101 qualified and PPAP capable. The base NZ8F4V3MX2WT5G shares identical electrical and mechanical specifications, differing only in traceability, site control, and documentation requirements required for automotive production.
What is the maximum steady-state power dissipation for NZ8F4V3MX2WT5G?
NZ8F4V3MX2WT5G is rated for 250 mW total device dissipation at 25 °C on an FR-4 board with minimum pad layout and 1 oz. copper. Power must be derated linearly at 1.5 mW/°C above 25 °C, reaching zero dissipation at approximately 192 °C ambient - though junction temperature must remain within −65 °C to +150 °C limits.
How does the wettable flank feature benefit NZ8F4V3MX2WT5G assembly?
The wettable flanks on the X2DFNW2 package of NZ8F4V3MX2WT5G allow solder to wick visibly up the side walls during reflow, enabling 100% automated optical inspection (AOI) of solder joint quality without requiring X-ray. This improves first-pass yield in high-volume 0402 assembly lines for consumer and automotive PCBs.
What is the junction capacitance of NZ8F4V3MX2WT5G and its design impact?
NZ8F4V3MX2WT5G exhibits 210 pF junction capacitance at 0 V bias and 1 MHz, as confirmed in the Electrical Characteristics table. This value limits its use to low-frequency clamping applications (<1 MHz), making it unsuitable for high-speed data lines but well-suited for power rail stabilization and analog sensor biasing where capacitive loading is non-critical.
NZ8F4V3MX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.3 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 5 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, Wettable Flank
- Supplier Device Package:
- 2-X2DFNW (1x0.6)
NZ8F4V3MX2WT5G FAQ
1.How can I place an order for NZ8F4V3MX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ8F4V3MX2WT5G 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 NZ8F4V3MX2WT5G reliable?
The price and inventory of NZ8F4V3MX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ8F4V3MX2WT5G is usually 5 days.
3.What payment methods are accepted for NZ8F4V3MX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ8F4V3MX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ8F4V3MX2WT5G?
NZ8F4V3MX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ8F4V3MX2WT5G 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 NZ8F4V3MX2WT5G?
For technical support, including NZ8F4V3MX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ8F4V3MX2WT5G requirements.
6.How does Aetrix verify that NZ8F4V3MX2WT5G is sourced from the original manufacturer or authorized distributors?
All NZ8F4V3MX2WT5G 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 NZ8F4V3MX2WT5G meets industry standards.
7.What is the process for return or replacement of NZ8F4V3MX2WT5G?
All NZ8F4V3MX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ8F4V3MX2WT5G, 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 NZ8F4V3MX2WT5G part is unused and in its original packaging.
Return procedure for NZ8F4V3MX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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