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onsemi NZ8F47VMX2WT5G
- Part No.:
- NZ8F47VMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
NZ8F47VMX2WT5G.pdf
- Description:
- DIODE ZENER 47V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:160,000
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Product details
Overview
NZ8F47VMX2WT5G from onsemi is a 47 V ±5% Zener diode in X2DFNW2 (0402) wettable flank package, rated for 250 mW dissipation at 25 °C on FR-4 board with 1.5 mW/°C derating, 415 °C/W junction-to-ambient thermal resistance, and 40 pF capacitance at 0 V/1 MHz - used for overvoltage clamping in compact automotive control units.
For engineers reviewing the NZ8F47VMX2WT5G 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 status, and tight leakage current (≤0.1 µA at 38 V).
Technical Context
This device operates as a unidirectional voltage reference and transient suppressor, with reverse breakdown triggered at 44.65–49.35 V under 2 mA test current. Its dynamic impedance is 170 Ω at IZT, and forward voltage is ≤0.9 V at 10 mA - enabling precise regulation in space-constrained power rail protection circuits.
The X2DFNW2 package features solderable side walls for automated optical inspection, supports reflow profiles compliant with J-STD-020, and maintains stable performance across −65 °C to +150 °C junction temperature range - critical for under-hood automotive electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 44.65–49.35 V @ 2 mA - defines clamping threshold for 48 V system overvoltage events |
| Power Dissipation | 250 mW @ 25 °C - limits continuous energy handling without heatsinking |
| Zener Impedance | 170 Ω @ IZT - determines regulation stiffness under dynamic load transients |
| Leakage Current | ≤0.1 µA @ 38 V - ensures minimal standby power loss in always-on circuits |
| Capacitance | 40 pF @ 0 V, 1 MHz - preserves signal integrity in high-frequency ESD protection paths |
| Thermal Resistance | 415 °C/W - dictates maximum ambient temperature rise under full power |
| Package | X2DFNW2 (0402) - enables 1.0 × 0.6 × 0.37 mm PCB footprint for ultra-dense layouts |
Pinout & Package
The NZ8F47VMX2WT5G uses a 2-terminal X2DFNW2 surface-mount package with wettable flank geometry. Cathode is marked by polarity indicator on top surface; anode is unmarked.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to protected node; conducts when voltage exceeds VZ |
| 2 (Anode) | Zener anode terminal | Typically grounded or tied to lower-potential rail for clamping action |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood use with PPAP capability and site-specific control |
| Wettable flank leads | Enables reliable automated optical inspection (AOI) of solder joints on 0402 footprints |
| Pb-Free / RoHS compliant | Meets global environmental regulations without compromising thermal or electrical performance |
| Low body height (0.40 mm) | Reduces mechanical interference in stacked PCB assemblies and shielded enclosures |
| Standard tolerance series | ±5% VZ tolerance balances cost and precision for non-critical voltage references |
Applications
| Automotive Engine Control Unit (ECU) | USB-C Power Delivery Clamp |
|---|---|
Use Scenario: Protects microcontroller I/O lines from load dump spikes up to 40 V in 12 V vehicle systems. IC Role / Device Role / Timing Role: Zener clamping diode placed between MCU pin and ground to shunt excess energy during ISO 7637-2 pulse 5a events. Use Value: 47 V nominal breakdown prevents false triggering during normal 13.5–14.5 V alternator operation while clamping at safe levels. | Use Scenario: Shields USB-C CC line receivers from VBUS coupling transients during hot-plug events. IC Role / Device Role / Timing Role: Unidirectional voltage clamp referenced to ground, absorbing fast-rising common-mode noise on differential signaling lines. Use Value: 40 pF capacitance avoids signal degradation at 10+ Gbps USB4 data rates while maintaining <1 ns response time. |
| Industrial Sensor Signal Conditioning | Portable Medical Device Battery Monitor |
Use Scenario: Stabilizes excitation voltage for bridge-based pressure sensors in factory automation modules. IC Role / Device Role / Timing Role: Precision shunt reference providing stable bias point for instrumentation amplifier front-end stages. Use Value: 170 Ω dynamic impedance ensures <0.5% output variation across 10–100 µA load current swings. | Use Scenario: Guards ADC input of lithium-ion battery fuel gauge IC against overvoltage during charger fault conditions. IC Role / Device Role / Timing Role: Secondary overvoltage protection stage downstream of primary TVS, limiting voltage to <50 V before ADC saturation. Use Value: 0.1 µA leakage at 38 V preserves >10-year shelf life in battery-powered diagnostic tools. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5278BS-7-F | 47 V ±5%, SOD-523 package (1.25 × 0.85 × 0.65 mm), 350 mW rating, 100 Ω ZZT | Larger footprint; higher power but no wettable flanks or AEC-Q101 certification | Select when higher surge capability is needed and AOI is not required |
| SZ1SMA4739HE3/A | 47 V ±5%, SMA package (4.5 × 2.7 × 2.2 mm), 1 W rating, 15 Ω ZZT, AEC-Q101 qualified | 10× larger size; superior thermal performance but incompatible with 0402 layout | Select for high-reliability automotive power rails where board space permits |
Compared with MMBZ5278BS-7-F and SZ1SMA4739HE3/A, the NZ8F47VMX2WT5G delivers identical voltage regulation accuracy in the smallest possible footprint with AOI support and automotive-grade traceability - making it optimal for miniaturized ECU modules where every 0.1 mm² matters.
Availability
NZ8F47VMX2WT5G is available at Aetrix Electronics and suitable for automotive engine control units, USB-C interface protection, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for NZ8F47VMX2WT5G 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 leadership in power management, analog, sensors, and connectivity.
The NZ8F Series is part of onsemi's precision discrete portfolio, engineered specifically for space-constrained voltage regulation and ESD protection in automotive and portable electronics - emphasizing AOI compatibility, AEC-Q101 compliance, and ultra-low profile packaging.
FAQ
What is the Zener voltage tolerance of NZ8F47VMX2WT5G?
The NZ8F47VMX2WT5G has a Zener voltage tolerance of ±5%, specified as 44.65 V minimum to 49.35 V maximum at 2 mA test current. This tolerance band ensures predictable clamping behavior in 48 V system protection circuits while maintaining cost efficiency versus tighter-tolerance variants like NZ8F47VSMX2WT5G (±2.5%). The tolerance is verified per onsemi's production testing protocol and applies across the full operating temperature range.
Is NZ8F47VMX2WT5G qualified for automotive applications?
Yes, NZ8F47VMX2WT5G is AEC-Q101 qualified and PPAP capable, with manufacturing traceability to specific wafer lots and assembly sites. It meets the stress test requirements for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life - making it suitable for under-hood engine control units, body control modules, and ADAS sensor interfaces where reliability is mission-critical.
What is the maximum power dissipation of NZ8F47VMX2WT5G at 85 °C ambient?
At 85 °C ambient, NZ8F47VMX2WT5G dissipates 160 mW maximum. This is calculated from its 250 mW rating at 25 °C and 1.5 mW/°C linear derating: 250 mW − (85 − 25) × 1.5 mW = 160 mW. Derating assumes FR-4 board with minimum pad layout (1 oz. Cu); using enhanced copper area increases allowable power but requires verification per onsemi's thermal models.
Does NZ8F47VMX2WT5G have wettable flank terminals?
Yes, NZ8F47VMX2WT5G uses the X2DFNW2 package with wettable flank geometry - meaning the side walls of both terminals are fully solderable and visible for automated optical inspection. This feature enables 100% solder joint quality verification on 0402 footprints, reducing field failure risk in high-volume automotive manufacturing where traditional bottom-termination inspection is impossible.
What is the forward voltage specification for NZ8F47VMX2WT5G?
The forward voltage of NZ8F47VMX2WT5G is guaranteed ≤0.9 V at 10 mA forward current, consistent across the entire NZ8FxxxMX2W series. This low VF enables efficient use as a bidirectional clamp when paired with another diode, or as a polarity-insensitive protection element in DC bias networks where forward conduction must remain benign.
NZ8F47VMX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 47 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 38 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)
NZ8F47VMX2WT5G FAQ
1.How can I place an order for NZ8F47VMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ8F47VMX2WT5G 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 NZ8F47VMX2WT5G reliable?
The price and inventory of NZ8F47VMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ8F47VMX2WT5G is usually 5 days.
3.What payment methods are accepted for NZ8F47VMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ8F47VMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ8F47VMX2WT5G?
NZ8F47VMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ8F47VMX2WT5G 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 NZ8F47VMX2WT5G?
For technical support, including NZ8F47VMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ8F47VMX2WT5G requirements.
6.How does Aetrix verify that NZ8F47VMX2WT5G is sourced from the original manufacturer or authorized distributors?
All NZ8F47VMX2WT5G 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 NZ8F47VMX2WT5G meets industry standards.
7.What is the process for return or replacement of NZ8F47VMX2WT5G?
All NZ8F47VMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ8F47VMX2WT5G, 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 NZ8F47VMX2WT5G part is unused and in its original packaging.
Return procedure for NZ8F47VMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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