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onsemi SZNZ8F22VMX2WT5G
- Part No.:
- SZNZ8F22VMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
SZNZ8F22VMX2WT5G.pdf
- Description:
- DIODE ZENER 22V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:9,503
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Product details
Overview
SZNZ8F22VMX2WT5G from onsemi is a 22 V Zener diode in X2DFNW2 (0402) wettable flank package, rated for 250 mW dissipation at 25 °C, with ±10% voltage tolerance (20.9–23.1 V), 55 Ω dynamic impedance at 5 mA, and 100 nA leakage at 16.8 V, used for precision voltage clamping in automotive control units and portable electronics.
For engineers reviewing the SZNZ8F22VMX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include AEC-Q101 qualification, wettable flank geometry for AOI compatibility, 0.40 mm body height, and tight thermal resistance (415 °C/W) on FR-4 boards.
Technical Context
This device operates as a unidirectional voltage regulator in reverse-bias mode, with nominal Zener voltage defined at IZT = 5 mA. Its low-profile X2DFNW2 package enables high-density PCB layouts while supporting automated optical inspection via wettable flanks.
Thermal performance is specified for two board configurations: 250 mW derating at 1.5 mW/°C on minimal FR-4 pads, and 500 mW derating at 1.2 mW/°C on 150 mm² copper areas. Junction temperature range spans −65 °C to +150 °C, meeting automotive-grade reliability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 20.9 V min / 23.1 V max at IZT = 5 mA - defines clamping threshold under standard test conditions |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C on minimal FR-4 pad - sets maximum continuous power handling in compact layouts |
| Zener Impedance (ZZT) | 55 Ω max @ IZT = 5 mA - determines voltage regulation stability under varying load current |
| Leakage Current (IR) | 100 nA max @ VR = 16.8 V - ensures minimal standby power loss in high-impedance bias networks |
| Capacitance (C) | 55 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and signal integrity in RF-adjacent circuits |
| Forward Voltage (VF) | 0.9 V max @ IF = 10 mA - defines conduction drop when used in forward-biased protection paths |
| Package | X2DFNW2 (0402, 1.00 × 0.60 × 0.37 mm) - enables ultra-compact placement and AOI-compatible solder joint inspection |
Pinout & Package
X2DFNW2 is a 2-terminal surface-mount package with wettable flank side walls. The device has no internal die bonding wires; terminals are exposed metal pads on the bottom surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode connection | Connected to regulated voltage rail; polarity must be observed to enable reverse-breakdown operation |
| 2 (Anode) | Zener anode connection | Connected to circuit ground or lower-potential reference; completes reverse-bias path for clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Wettable flank geometry | Enables reliable automated optical inspection of solder fillets without X-ray or cross-sectioning |
| Low body height (0.40 mm) | Reduces profile interference in stacked or shielded assemblies and improves mechanical robustness |
| Pb-free, Halogen-free, RoHS compliant | Meets global environmental compliance mandates and eliminates hazardous substance risks in manufacturing |
| SZ prefix variant | Indicates dedicated automotive traceability, PPAP capability, and enhanced process controls per customer requirement |
Applications
| Automotive Engine Control Unit (ECU) | Portable Medical Monitor Power Rail |
|---|---|
Use Scenario: Clamping transient overvoltage on 24 V supply lines during load dump events in engine management systems. IC Role / Device Role / Timing Role: Zener diode acting as primary shunt voltage clamp to protect downstream microcontrollers and analog sensors. Use Value: Withstands 40 W non-repetitive peak reverse power and maintains stable 22 V regulation across −40 °C to +125 °C ambient. | Use Scenario: Stabilizing reference voltage for ADC front-end circuitry in battery-powered patient monitors. IC Role / Device Role / Timing Role: Precision voltage reference element providing low-leakage (100 nA), low-capacitance (55 pF) bias to op-amp input stages. Use Value: Enables <1 LSB error contribution in 12-bit medical-grade data acquisition due to tight 10% VZ tolerance and low dynamic impedance. |
| Industrial PLC Digital Input Protection | 5G Small Cell Baseband Power Sequencing |
Use Scenario: Protecting 24 V digital input channels from ESD and surge-induced voltage spikes in factory automation controllers. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp placed directly at connector interface before signal conditioning ICs. Use Value: Wettable flank design ensures solder joint integrity verification, critical for field-reliability in harsh industrial environments. | Use Scenario: Providing controlled power-rail sequencing margin between FPGA core and I/O banks in compact 5G radio units. IC Role / Device Role / Timing Role: Voltage margining element used in conjunction with LDO feedback networks to fine-tune supply thresholds. Use Value: 0.40 mm height allows placement beneath BGA packages; 55 Ω ZZT ensures minimal droop during sequencing transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C22LT1G | 22 V ±5%, SOT-23 package (1.3 × 0.9 × 0.9 mm), 350 mW PD, higher ZZT (60 Ω) | Larger footprint; lacks wettable flanks and AEC-Q101 qualification | Preferred for cost-sensitive consumer designs where AOI and automotive compliance are not required |
| MMSZ5247B-TP | 22 V ±5%, SOD-123 package (2.7 × 1.4 × 1.0 mm), 500 mW PD, ZZT = 50 Ω | Higher power rating but 3× larger area; no wettable flank or automotive qualification | Selected when higher steady-state power handling is needed and board space permits larger package |
Compared with BZX84-C22LT1G and MMSZ5247B-TP, SZNZ8F22VMX2WT5G delivers superior board-level reliability in automotive and space-constrained applications through its AEC-Q101 qualification, wettable flank geometry, and 0402 footprint-without sacrificing Zener regulation accuracy or thermal performance.
Availability
SZNZ8F22VMX2WT5G is available at Aetrix Electronics and suitable for automotive ECUs, portable medical monitors, industrial PLC inputs, and 5G small cell baseband circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SZNZ8F22VMX2WT5G 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.
The NZ8F Series is designed specifically for high-reliability voltage regulation in space-constrained, thermally demanding environments-emphasizing AEC-Q101 compliance, AOI-ready packaging, and precise Zener characteristics across wide temperature ranges.
FAQ
What is the Zener voltage tolerance of SZNZ8F22VMX2WT5G?
SZNZ8F22VMX2WT5G has a nominal Zener voltage of 22 V with a tolerance of ±10%, resulting in a guaranteed range of 20.9 V to 23.1 V at IZT = 5 mA. This tolerance is specified in the Standard Tolerance Series (MX2W) per the onsemi datasheet revision 4. The device marking "A3" corresponds to this voltage grade.
Is SZNZ8F22VMX2WT5G qualified for automotive use?
Yes, SZNZ8F22VMX2WT5G is AEC-Q101 qualified and PPAP capable, as indicated by the "SZ" prefix in its part number. It meets automotive reliability standards for temperature cycling, humidity testing, and mechanical shock, and is intended for use in engine control units, body electronics, and ADAS subsystems.
What is the maximum power dissipation for SZNZ8F22VMX2WT5G on a standard FR-4 board?
SZNZ8F22VMX2WT5G is rated for 250 mW total device dissipation at TA = 25 °C on an FR-4 board with minimum pad layout (1 oz. Cu). Power must be derated linearly at 1.5 mW/°C above 25 °C, yielding ~190 mW at 65 °C ambient.
Does SZNZ8F22VMX2WT5G support automated optical inspection (AOI)?
Yes, SZNZ8F22VMX2WT5G uses the X2DFNW2 package with wettable flank side walls, enabling high-confidence AOI of solder fillets without requiring X-ray or cross-sectional analysis. This feature is explicitly called out in the datasheet as a key specification for manufacturing yield and field reliability.
What is the leakage current specification for SZNZ8F22VMX2WT5G at 16.8 V?
SZNZ8F22VMX2WT5G specifies a maximum reverse leakage current (IR) of 100 nA at VR = 16.8 V, measured at TA = 25 °C. This low leakage supports high-impedance bias networks and minimizes standby power loss in battery-operated systems.
SZNZ8F22VMX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 16.8 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)
SZNZ8F22VMX2WT5G FAQ
1.How can I place an order for SZNZ8F22VMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZNZ8F22VMX2WT5G 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 SZNZ8F22VMX2WT5G reliable?
The price and inventory of SZNZ8F22VMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZNZ8F22VMX2WT5G is usually 5 days.
3.What payment methods are accepted for SZNZ8F22VMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZNZ8F22VMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZNZ8F22VMX2WT5G?
SZNZ8F22VMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZNZ8F22VMX2WT5G 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 SZNZ8F22VMX2WT5G?
For technical support, including SZNZ8F22VMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZNZ8F22VMX2WT5G requirements.
6.How does Aetrix verify that SZNZ8F22VMX2WT5G is sourced from the original manufacturer or authorized distributors?
All SZNZ8F22VMX2WT5G 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 SZNZ8F22VMX2WT5G meets industry standards.
7.What is the process for return or replacement of SZNZ8F22VMX2WT5G?
All SZNZ8F22VMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with SZNZ8F22VMX2WT5G, 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 SZNZ8F22VMX2WT5G part is unused and in its original packaging.
Return procedure for SZNZ8F22VMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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