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onsemi NZ8F33VMX2WT5G
- Part No.:
- NZ8F33VMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
NZ8F33VMX2WT5G.pdf
- Description:
- DIODE ZENER 33V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:7,076
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Product details
Overview
NZ8F33VMX2WT5G from onsemi is a 33 V ±5% Zener diode in X2DFNW2 (0402) wettable flank package, rated for 250 mW dissipation at 25 °C on FR-4 with 1 oz. Cu, 0.40 mm body height, and 45 pF capacitance at 0 V/1 MHz - used for precision voltage clamping in space-constrained power rails of automotive control units and portable electronics.
For engineers reviewing the NZ8F33VMX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±5%), low-profile wettable flank packaging for AOI compatibility, thermal derating slope (1.5 mW/°C), junction temperature range (−65 to +150 °C), and AEC-Q101 qualification status when sourcing for automotive-grade signal protection.
Technical Context
This device operates as a unidirectional Zener diode with reverse breakdown regulation at nominal 33 V, specified at test current IZT = 5 mA. Its dynamic impedance is 95 Ω max at IZT, leakage current is ≤0.1 µA at VR = 26 V, and forward voltage is ≤0.9 V at IF = 10 mA.
The X2DFNW2 package enables automated optical inspection via wettable flanks and supports high-density PCB layouts. Thermal resistance is 415 °C/W (Junction-to-Ambient, FR-4 minimum pad), and non-repetitive peak reverse power is 40 W for 100 µs pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 31.35 V to 34.65 V at IZT = 5 mA - defines clamping threshold for overvoltage protection circuits |
| Power Dissipation (PD) | 250 mW at TA = 25 °C on FR-4 (1 oz. Cu, min pad) - sets maximum continuous DC power handling |
| Zener Impedance (ZZT) | 95 Ω max at IZT = 5 mA - determines regulation stability under varying load currents |
| Reverse Leakage (IR) | ≤0.1 µA at VR = 26 V - ensures minimal standby current in high-impedance bias networks |
| Capacitance (C) | 45 pF at VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and ESD transient response |
| Package | X2DFNW2 (0402, 1.00 × 0.60 × 0.37 mm) with wettable flanks - enables AOI and fits ultra-compact PCB footprints |
| Junction Temp Range | −65 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
Pinout & Package
The NZ8F33VMX2WT5G is a two-terminal Zener diode in the X2DFNW2 surface-mount package (Case 711BG). The cathode is marked with a visible band on the top surface; anode is unmarked. Wettable flank geometry allows solder joint inspection without X-ray.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to regulated voltage node; reverse-biased during clamping; polarity must match PCB silkscreen marking |
| 2 (Anode) | Zener anode terminal | Connected to ground or lower-potential rail; completes reverse-bias path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Wettable flank package | Enables 100% automated optical inspection (AOI) of solder joints on 0402 footprint without X-ray |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Pb-Free, Halogen Free/BFR Free | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level MSL1 |
| Low body height (0.40 mm) | Reduces board profile for thin handheld devices and stacked multi-layer PCB assemblies |
| Standard tolerance series | ±5% Zener voltage tolerance (NZ8FxxxMX2WT5G) - balances cost and precision for general-purpose clamping |
Applications
| Automotive Body Control Module | USB-C Power Delivery Interface |
|---|---|
|
Use Scenario: Clamping transient spikes on LIN bus lines and sensor supply rails exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Passive voltage clamp protecting microcontroller I/O and analog front-end inputs from >100 V transients. Use Value: With 33 V Zener voltage and 40 W non-repetitive peak power rating, NZ8F33VMX2WT5G absorbs energy without failure during ISO 7637-2 Pulse 5a events. |
Use Scenario: Overvoltage protection on VBUS lines in USB-C receptacles where space limits discrete TVS selection. IC Role / Device Role / Timing Role: Standoff diode limiting VBUS to safe levels before buck converter input stage during hot-plug or adapter fault. Use Value: 45 pF capacitance minimizes signal integrity impact on USB 2.0 data lines while providing 33 V clamping at <100 ns response time. |
| Industrial IoT Sensor Node | Medical Wearable Power Rail |
|
Use Scenario: Regulating reference voltage for ADC biasing in battery-powered environmental sensors operating across −40 °C to +85 °C. IC Role / Device Role / Timing Role: Precision shunt regulator establishing stable 33 V reference for analog signal conditioning circuitry. Use Value: Temperature coefficient and tight 5 mA test current specification ensure <±0.1 %/°C drift over full operating range. |
Use Scenario: Protecting lithium-polymer charging circuitry from accidental 36 V adapter misconnection in compact wearable form factors. IC Role / Device Role / Timing Role: Primary overvoltage limiter placed between input connector and charge management IC. Use Value: 0.40 mm height and 0402 footprint allow integration into sub-5 mm thick wearable PCBs without compromising creepage distance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C33LT1G | 33 V ±5%, SOT-23 package (1.3 × 0.85 × 0.95 mm), 350 mW PD, 90 Ω ZZT | Larger footprint and higher thermal resistance (350 °C/W); not wettable flank or AEC-Q101 qualified | Select when higher power handling is required and AOI is not mandatory |
| MMSZ5258ET1G | 33 V ±5%, SOD-123 package (2.7 × 1.4 × 1.0 mm), 500 mW PD, 70 Ω ZZT | Double the board area, no wettable flanks, RoHS-compliant but not AEC-Q101 certified | Choose for cost-sensitive industrial designs where space constraints are less severe |
Compared with BZX84-C33LT1G and MMSZ5258ET1G, the NZ8F33VMX2WT5G offers the smallest footprint (0402), AOI-compatible wettable flanks, and automotive qualification - making it optimal for next-generation compact, high-reliability systems where board real estate and process verification are critical.
Availability
NZ8F33VMX2WT5G is available at Aetrix Electronics and suitable for automotive control units, USB-C interface protection, and industrial IoT sensor nodes requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for NZ8F33VMX2WT5G 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 IoT applications.
The NZ8F Series is part of onsemi's precision Zener diode portfolio designed specifically for space-constrained, high-reliability voltage regulation and transient suppression in automotive and portable electronics.
FAQ
What is the Zener voltage tolerance of NZ8F33VMX2WT5G?
The NZ8F33VMX2WT5G has a Zener voltage tolerance of ±5%, with a specified range of 31.35 V to 34.65 V at IZT = 5 mA. This standard tolerance series (denoted by "M" in the part number) balances cost and performance for general-purpose voltage clamping applications where tighter regulation is not required.
Is NZ8F33VMX2WT5G qualified for automotive use?
Yes, NZ8F33VMX2WT5G is AEC-Q101 qualified and PPAP capable. It meets stress testing requirements for automotive applications including temperature cycling, humidity bias, and mechanical shock - making it suitable for use in body control modules, infotainment power supplies, and ADAS sensor interfaces.
What does the "MX2WT5G" suffix indicate in NZ8F33VMX2WT5G?
The "MX2WT5G" suffix identifies NZ8F33VMX2WT5G as a standard-tolerance (M), X2DFNW2-packaged (X2), tape-and-reel (T), 8,000-unit reel (5), Pb-free (G) variant. The "W" denotes wettable flank finish, and "2" refers to the second revision of the X2DFNW2 package outline per onsemi's case numbering system.
Can NZ8F33VMX2WT5G be used for ESD protection?
NZ8F33VMX2WT5G is not optimized for ESD protection - it lacks specified IEC 61000-4-2 ratings and has relatively high clamping voltage versus dedicated TVS diodes. However, its 45 pF capacitance and fast Zener response make it suitable for low-energy transient suppression in conjunction with primary ESD devices.
What is the thermal derating behavior of NZ8F33VMX2WT5G above 25 °C?
NZ8F33VMX2WT5G derates linearly at 1.5 mW/°C above 25 °C when mounted on an FR-4 board with minimum pad and 1 oz. Cu. At 85 °C ambient, its usable power dissipation drops to approximately 161 mW - a critical factor when designing for sustained operation in enclosed automotive or industrial enclosures.
NZ8F33VMX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 33 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 26 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)
NZ8F33VMX2WT5G FAQ
1.How can I place an order for NZ8F33VMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ8F33VMX2WT5G 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 NZ8F33VMX2WT5G reliable?
The price and inventory of NZ8F33VMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ8F33VMX2WT5G is usually 5 days.
3.What payment methods are accepted for NZ8F33VMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ8F33VMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ8F33VMX2WT5G?
NZ8F33VMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ8F33VMX2WT5G 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 NZ8F33VMX2WT5G?
For technical support, including NZ8F33VMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ8F33VMX2WT5G requirements.
6.How does Aetrix verify that NZ8F33VMX2WT5G is sourced from the original manufacturer or authorized distributors?
All NZ8F33VMX2WT5G 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 NZ8F33VMX2WT5G meets industry standards.
7.What is the process for return or replacement of NZ8F33VMX2WT5G?
All NZ8F33VMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ8F33VMX2WT5G, 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 NZ8F33VMX2WT5G part is unused and in its original packaging.
Return procedure for NZ8F33VMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZ8F33VMX2WT5G Tags
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