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onsemi SZNZ8F6V2MX2WT5G
- Part No.:
- SZNZ8F6V2MX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
SZNZ8F6V2MX2WT5G.pdf
- Description:
- DIODE ZENER 6.2V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:8,000
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Product details
Overview
SZNZ8F6V2MX2WT5G from onsemi is a 250 mW, AEC-Q101-qualified Zener diode with nominal reverse breakdown voltage of 6.2 V (5.89–6.51 V at IZT = 5 mA), 60 Ω dynamic impedance, and 1 µA leakage current at 3 V reverse bias. It serves as a precision voltage reference and overvoltage clamp in space-constrained automotive control units and portable electronics.
For engineers reviewing the SZNZ8F6V2MX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include its wettable flank X2DFNW2 package for AOI compatibility, ±5% tolerance, 0.40 mm body height, and automotive-grade qualification under AEC-Q101.
Technical Context
This device operates as a unidirectional Zener regulator in reverse-biased mode, maintaining stable voltage across load variations with a temperature coefficient of ±4 mV/°C (typical) and forward voltage ≤0.9 V at 10 mA. Its low capacitance (110 pF at 0 V, 1 MHz) supports high-frequency noise suppression without signal distortion.
The SZNZ8F6V2MX2WT5G is thermally optimized for FR-4 PCBs: it delivers 250 mW dissipation with 415 °C/W junction-to-ambient thermal resistance on minimum pad layout, derating linearly above 25 °C at 1.5 mW/°C. It withstands junction temperatures from −65 °C to +150 °C and non-repetitive peak reverse power up to 40 W (100 µs pulse).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.89–6.51 V at 5 mA test current - defines clamping threshold for overvoltage protection |
| Power Dissipation (PD) | 250 mW on FR-4 min-pad layout - sets maximum continuous DC power handling |
| Zener Impedance (ZZT) | 60 Ω at 5 mA - determines regulation stiffness and output voltage variation under load changes |
| Leakage Current (IR) | 1 µA at 3 V reverse bias - ensures minimal standby current in battery-powered systems |
| Capacitance (C) | 110 pF at 0 V, 1 MHz - limits high-frequency coupling in EMI-sensitive signal paths |
| Forward Voltage (VF) | ≤0.9 V at 10 mA - enables use as low-drop rectifier or polarity protection element |
| Junction Temp Range | −65 °C to +150 °C - supports operation in under-hood automotive environments |
Pinout & Package
The SZNZ8F6V2MX2WT5G is housed in the X2DFNW2 surface-mount package (Case 711BG), measuring 1.00 × 0.60 × 0.37 mm with 0.65 mm pitch and wettable flank sidewalls for automated optical inspection. It features a 2-terminal configuration with cathode and anode marked per device marking "AM".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode connection | Connected to higher-potential node in reverse-bias regulation; carries full Zener current during clamping |
| 2 (Anode) | Zener anode connection | Connected to lower-potential node (e.g., ground); completes reverse-bias path for voltage reference or transient suppression |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and ADAS sensors |
| Wettable flank package | Enables 100% solder joint inspection via AOI without X-ray, reducing manufacturing defect escape |
| Pb-Free, Halogen-Free | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-609A Class 1 moisture sensitivity |
| 0402 footprint compatibility | Replaces legacy 0402 Zeners without PCB redesign; uses industry-standard land pattern |
| Low profile (0.40 mm height) | Enables stacking under shields or integration into ultra-thin handheld devices |
Applications
| Automotive Engine Control Unit (ECU) | USB-C Power Delivery Interface |
|---|---|
Use Scenario: Voltage rail stabilization for microcontroller I/O pins exposed to load dump transients up to 40 V. IC Role / Device Role / Timing Role: Zener clamping diode providing primary overvoltage protection on 5 V sensor supply lines. Use Value: Limits transient overshoot to ≤6.51 V, preventing latch-up in 5 V logic while surviving 150 °C under-hood ambient. |
Use Scenario: Reverse-polarity and overvoltage protection on VBUS detection circuitry in USB-C receptacles. IC Role / Device Role / Timing Role: Bidirectional voltage limiter that conducts only above 6.51 V reverse bias or below −0.9 V forward bias. Use Value: Blocks >6.5 V faults before they reach USB PD controller ICs, with 110 pF capacitance preserving signal integrity on CC lines. |
| Industrial IoT Sensor Node | Medical Wearable Battery Monitor |
Use Scenario: Reference voltage source for ADC input scaling in battery-operated vibration sensors. IC Role / Device Role / Timing Role: Precision shunt reference generating stable 6.2 V reference for ratiometric analog front-end calibration. Use Value: Delivers ±5% tolerance and <1 µA leakage, enabling >10-year shelf life and <0.1% measurement drift over −40 to +85 °C. |
Use Scenario: Overvoltage cutoff for lithium-ion cell monitoring circuitry during fast charging. IC Role / Device Role / Timing Role: Fail-safe clamp activated when charger IC output exceeds 6.51 V, diverting excess current to ground. Use Value: Responds within nanoseconds to overvoltage events, protecting low-power analog monitor ICs rated for max 7 V absolute input. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5234BS-7-F | 5.6 V nominal, ±5%, SOT-323 package (1.7 × 1.3 × 0.95 mm), 350 mW PD | Larger footprint and higher thermal resistance (300 °C/W); unsuitable for 0402-limited layouts | Select when higher power margin is required and board area permits larger package |
| BZX384-B6V2,115 | 6.2 V nominal, ±5%, SOD-323 package (1.7 × 1.3 × 0.9 mm), 300 mW PD, no AEC-Q101 rating | Non-automotive grade; lacks wettable flanks and PPAP support; not qualified for under-hood use | Select for cost-sensitive consumer portables where AEC-Q101 and AOI capability are unnecessary |
Compared with MMBZ5234BS-7-F and BZX384-B6V2,115, the SZNZ8F6V2MX2WT5G offers the smallest footprint (0402), lowest profile (0.40 mm), and only AEC-Q101-compliant option-making it essential for space- and reliability-critical automotive and medical designs.
Availability
SZNZ8F6V2MX2WT5G is available at Aetrix Electronics and suitable for automotive engine control units, USB-C power delivery interfaces, and industrial IoT sensor nodes requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SZNZ8F6V2MX2WT5G 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 core expertise in power management, analog, sensors, and connectivity.
The NZ8F Series is part of onsemi's precision discrete portfolio, engineered specifically for miniaturized, high-reliability voltage regulation in automotive and portable electronics where space, thermal performance, and process control are critical.
FAQ
What is the Zener voltage tolerance of SZNZ8F6V2MX2WT5G?
The SZNZ8F6V2MX2WT5G has a standard tolerance of ±5% around its nominal 6.2 V Zener voltage, meaning the actual breakdown occurs between 5.89 V and 6.51 V at 5 mA test current. This tolerance is confirmed in the Electrical Characteristics table on page 2 of the official onsemi datasheet (Rev. 4, November 2025). The SZNZ8F6V2MX2WT5G is part of the "MX2W" standard tolerance series, distinct from the tighter ±2.5% "SMX2W" variants.
Is SZNZ8F6V2MX2WT5G qualified for automotive use?
Yes, the SZNZ8F6V2MX2WT5G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the datasheet's Specification Features section and reinforced by the "SZ" prefix denoting compliance with automotive site and control change requirements. Its operating junction temperature range (−65 °C to +150 °C) and qualification testing ensure suitability for under-hood engine control units and ADAS modules where SZNZ8F6V2MX2WT5G is deployed as a voltage clamp or reference.
What package type does SZNZ8F6V2MX2WT5G use, and why does it matter?
The SZNZ8F6V2MX2WT5G uses the X2DFNW2 package (Case 711BG), a 0402-sized wettable flank leadless package measuring 1.00 × 0.60 × 0.37 mm. Its wettable flanks enable reliable automated optical inspection (AOI) of solder joints-a critical requirement for zero-defect automotive manufacturing. Unlike conventional 0402 packages, the SZNZ8F6V2MX2WT5G's sidewall metallization ensures full process control without needing X-ray verification.
Can SZNZ8F6V2MX2WT5G be used in place of older 0402 Zeners like BZX384-B6V2?
The SZNZ8F6V2MX2WT5G shares the same 6.2 V nominal Zener voltage and ±5% tolerance as BZX384-B6V2 but differs critically in qualification and manufacturability: it is AEC-Q101 qualified, features wettable flanks for AOI, and uses a thinner 0.40 mm profile versus BZX384-B6V2's 0.9 mm height. While electrically similar, the SZNZ8F6V2MX2WT5G is not a drop-in replacement due to different land pattern recommendations and thermal characteristics-board layout validation is required before substitution.
What is the maximum reverse leakage current for SZNZ8F6V2MX2WT5G at 3 V?
The maximum reverse leakage current for SZNZ8F6V2MX2WT5G is 1 µA at 3 V reverse voltage and 25 °C ambient temperature, as specified in the Electrical Characteristics table on page 2 of the onsemi datasheet. This low leakage supports extended battery life in always-on sensor nodes and ensures minimal loading on high-impedance reference circuits where SZNZ8F6V2MX2WT5G functions as a shunt regulator.
SZNZ8F6V2MX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 2-X2DFNW (1x0.6)
SZNZ8F6V2MX2WT5G FAQ
1.How can I place an order for SZNZ8F6V2MX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZNZ8F6V2MX2WT5G 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 SZNZ8F6V2MX2WT5G reliable?
The price and inventory of SZNZ8F6V2MX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZNZ8F6V2MX2WT5G is usually 5 days.
3.What payment methods are accepted for SZNZ8F6V2MX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZNZ8F6V2MX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZNZ8F6V2MX2WT5G?
SZNZ8F6V2MX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZNZ8F6V2MX2WT5G 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 SZNZ8F6V2MX2WT5G?
For technical support, including SZNZ8F6V2MX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZNZ8F6V2MX2WT5G requirements.
6.How does Aetrix verify that SZNZ8F6V2MX2WT5G is sourced from the original manufacturer or authorized distributors?
All SZNZ8F6V2MX2WT5G 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 SZNZ8F6V2MX2WT5G meets industry standards.
7.What is the process for return or replacement of SZNZ8F6V2MX2WT5G?
All SZNZ8F6V2MX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with SZNZ8F6V2MX2WT5G, 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 SZNZ8F6V2MX2WT5G part is unused and in its original packaging.
Return procedure for SZNZ8F6V2MX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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