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onsemi SZNZ8P26VMX2WT5G
- Part No.:
- SZNZ8P26VMX2WT5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 2-XDFN
- Datasheet:
-
SZNZ8P26VMX2WT5G.pdf
- Description:
- ZENER PROTECTION DIODE26V PROTEC
- Quantity:
- Payment:
- Shipping:
Inventory:8,050
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Product details
Overview
SZNZ8P26VMX2WT5G from onsemi is a single-channel, unidirectional Zener protection diode in an X2DFNW2 1.0 × 0.6 mm wettable flank package, designed for ESD and transient overvoltage protection of voltage-sensitive circuits. It features a 26 V working peak reverse voltage (VRWM), 33 V typical breakdown voltage (VBR) at 5 mA, and clamps to 38 V at 1.0 A (8/20 µs), with ±30 kV IEC 61000-4-2 contact ESD rating - used in automotive ECUs and IVN interfaces.
For engineers reviewing the SZNZ8P26VMX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM ≥ system operating voltage, clamping voltage margin vs. IC absolute maximum ratings, wettable flank compatibility with automated optical inspection, AEC-Q101 qualification for automotive use, and low 19 pF junction capacitance for high-speed signal line protection.
Technical Context
This device operates as a unidirectional TVS diode, leveraging silicon Zener avalanche breakdown to clamp transients above VRWM. Its design targets fast response to ESD events (sub-nanosecond), with precise clamping defined by VC at specified IPP values (1.0 A and 4.5 A for 8/20 µs, 0.87 A for 10/1000 µs).
The X2DFNW2 package integrates cathode/anode terminals on opposing edges with solderable side walls, enabling reliable AOI and reflow process control. Junction temperature range (−55 °C to +150 °C) and AEC-Q101 qualification confirm suitability for under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 26 V - Maximum continuous DC or peak AC voltage the diode blocks without clamping; must be ≥ protected circuit's operating voltage. |
| VBR (min/typ/max) | 32.2 / 33.0 / 33.8 V @ 5 mA - Ensures predictable turn-on threshold across temperature and unit variation. |
| VC @ IPP = 1.0 A (8/20 µs) | 38 V - Clamping voltage seen by protected IC during moderate transient; defines minimum safe margin vs. IC's absolute max rating. |
| VC @ IPP = 4.5 A (8/20 µs) | 56 V - Peak clamping under high-energy surge; used to verify worst-case stress on downstream components. |
| CJ @ 0 V, 1 MHz | 19 pF - Low capacitance preserves signal integrity on high-speed lines (e.g., CAN FD, LIN, USB 2.0). |
| ESD Rating (IEC 61000-4-2) | ±30 kV contact - Meets stringent automotive and industrial ESD immunity requirements without external circuitry. |
| Package | X2DFNW2 (Case 711BG), 1.0 × 0.6 mm - Ultra-compact footprint with wettable flanks for AOI-compatible assembly. |
Pinout & Package
X2DFNW2 is a 2-terminal, bottom-terminated, ultra-small flat no-lead package with exposed cathode and anode pads on opposite long edges. Wettable flanks enable solder fillet inspection. Total body size: 1.0 mm × 0.6 mm × 0.35 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Transient current sink node | Connected to protected signal line; conducts surge current to ground when voltage exceeds VRWM. |
| 2 (Anode) | Reference/ground return path | Typically tied to system ground plane; completes current path during clamping event. |
Key Features
| Feature | Design Value |
|---|---|
| Precise clamping voltage tolerance | VC = 38 V @ 1.0 A (8/20 µs) - Tight control ensures consistent protection margin across production lots. |
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - supports PPAP documentation for Tier 1 suppliers. |
| Wettable flank package | X2DFNW2 side-wall plating enables automated optical inspection of solder joints - reduces post-reflow defect escape. |
| Low junction capacitance | 19 pF at 0 V - Minimizes signal distortion on data lines up to 100 Mbps (e.g., CAN, LIN, FlexRay). |
| High ESD robustness | ±30 kV IEC 61000-4-2 contact discharge - Eliminates need for secondary protection stages in most ECUs. |
Applications
| Automotive Engine Control Unit (ECU) | In-Vehicle Networking (IVN) Bus Lines |
|---|---|
Use Scenario: Protecting microcontroller I/O pins and sensor inputs from load dump and ESD in 12 V powertrain systems. IC Role / Device Role: Unidirectional transient voltage suppressor placed between signal line and chassis ground. Use Value: Withstands ±30 kV ESD and clamps 8/20 µs surges to ≤38 V at 1.0 A, preserving MCU GPIO integrity without derating. | Use Scenario: Shielding CAN High/Low differential pairs from coupling-induced transients in wiring harnesses. IC Role / Device Role: Line-side TVS diode on each bus conductor, referenced to ground. Use Value: 19 pF capacitance avoids CAN FD bit-rate degradation; 26 V VRWM matches nominal 12 V bus common-mode range. |
| Infotainment System USB Interface | ADAS Camera Serial Link (e.g., GMSL, FPD-Link) |
Use Scenario: Guarding USB 2.0 D+/D− lines against hot-plug ESD and cable discharge events. IC Role / Device Role: Bidirectional-capable unidirectional diode (cathode-to-signal, anode-to-ground) on each data line. Use Value: 38 V clamping at 1.0 A prevents damage to USB transceivers; low capacitance maintains signal rise/fall time compliance. | Use Scenario: Safeguarding high-speed serializer/deserializer links between radar sensors and domain controllers. IC Role / Device Role: Point-of-entry TVS on serialized video/data lanes before ESD-sensitive SerDes ICs. Use Value: Sub-20 pF capacitance preserves >3 Gbps eye diagram integrity; AEC-Q101 rating ensures reliability in ADAS thermal cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD9B26VD-TP | Same VRWM (26 V), but higher VC = 45 V @ 1 A (8/20 µs); 25 pF CJ; SOD-923 package (1.0 × 0.6 mm, non-wettable flank) | Lacks wettable flank AOI support; higher clamping increases risk to 3.3 V logic rails | Acceptable where AOI not required and clamping margin allows |
| SMF26A-Q | 26 V VRWM, VC = 42 V @ 1 A (8/20 µs); 100 pF CJ; SOD-123FL package (3.5 × 1.6 mm) | Higher capacitance limits use to <10 Mbps lines; larger footprint consumes PCB area | Preferred only if higher surge current rating (20 A IPP) is mandatory and space permits |
Compared with ESD9B26VD-TP and SMF26A-Q, the SZNZ8P26VMX2WT5G delivers lower clamping (38 V vs. 42–45 V), lower capacitance (19 pF vs. 25–100 pF), and AOI-compatible packaging - making it optimal for space-constrained, high-speed automotive signal protection where precision clamping and process yield are critical.
Availability
SZNZ8P26VMX2WT5G is available at Aetrix Electronics and suitable for automotive ECUs, in-vehicle networking interfaces, and voltage-sensitive sensor signal conditioning circuits requiring stable component supply across multi-year production programs.
Supply support for SZNZ8P26VMX2WT5G 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 (Nasdaq: ON) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NZ8P series is engineered specifically for high-reliability, low-capacitance ESD protection in automotive electronics - emphasizing AEC-Q101 qualification, wettable flank manufacturability, and tight clamping voltage control for safety-critical signal paths.
FAQ
What is the maximum working voltage the SZNZ8P26VMX2WT5G can protect?
The SZNZ8P26VMX2WT5G has a working peak reverse voltage (VRWM) of 26 V. This means it reliably blocks voltages up to 26 V DC or continuous peak AC without clamping. It must be selected so that VRWM is equal to or greater than the normal operating voltage of the protected line - for example, it is appropriate for 12 V automotive systems with transient headroom, but not for 24 V or 48 V buses.
Does the SZNZ8P26VMX2WT5G meet automotive qualification standards?
Yes, the SZNZ8P26VMX2WT5G is AEC-Q101 qualified and PPAP capable. This certification covers stress tests including high-temperature operating life, temperature cycling, and ESD robustness - confirming its suitability for automotive electronic control units, infotainment systems, and ADAS modules deployed in demanding thermal and electrical environments.
What is the clamping voltage of the SZNZ8P26VMX2WT5G at 4.5 A surge current?
The SZNZ8P26VMX2WT5G clamps to 56 V when subjected to a 4.5 A peak pulse current with an 8/20 µs waveform. This value represents worst-case transient suppression under high-energy conditions and is used to verify that downstream ICs remain within their absolute maximum voltage ratings during severe surge events such as ISO 10605 discharges.
How does the wettable flank feature benefit manufacturing of the SZNZ8P26VMX2WT5G?
The X2DFNW2 package of the SZNZ8P26VMX2WT5G includes solderable side walls (wettable flanks) that form visible fillets during reflow. This enables automated optical inspection (AOI) to verify solder joint quality without X-ray, improving first-pass yield and reducing field failure risk - especially critical for high-volume automotive PCB assembly where traceability and zero-defect goals apply.
What is the junction capacitance of the SZNZ8P26VMX2WT5G and why does it matter?
The SZNZ8P26VMX2WT5G exhibits 19 pF junction capacitance at 0 V bias and 1 MHz. This low value minimizes loading on high-speed signal lines, preserving signal integrity for protocols like CAN FD (up to 5 Mbps), LIN, and USB 2.0. Higher capacitance would degrade edge rates and increase bit error rates - making this parameter essential for data line protection.
SZNZ8P26VMX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- 2-XDFN
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 26V (Max)
- Voltage - Breakdown (Min):
- 32.2V
- Voltage - Clamping (Max) @ Ipp:
- 46V
- Current - Peak Pulse (10/1000µs):
- 1A
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- Automotive
- Capacitance @ Frequency:
- 19pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 2-X2DFNW (1x0.6)
SZNZ8P26VMX2WT5G FAQ
1.How can I place an order for SZNZ8P26VMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZNZ8P26VMX2WT5G 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 SZNZ8P26VMX2WT5G reliable?
The price and inventory of SZNZ8P26VMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZNZ8P26VMX2WT5G is usually 5 days.
3.What payment methods are accepted for SZNZ8P26VMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZNZ8P26VMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZNZ8P26VMX2WT5G?
SZNZ8P26VMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZNZ8P26VMX2WT5G 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 SZNZ8P26VMX2WT5G?
For technical support, including SZNZ8P26VMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZNZ8P26VMX2WT5G requirements.
6.How does Aetrix verify that SZNZ8P26VMX2WT5G is sourced from the original manufacturer or authorized distributors?
All SZNZ8P26VMX2WT5G 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 SZNZ8P26VMX2WT5G meets industry standards.
7.What is the process for return or replacement of SZNZ8P26VMX2WT5G?
All SZNZ8P26VMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with SZNZ8P26VMX2WT5G, 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 SZNZ8P26VMX2WT5G part is unused and in its original packaging.
Return procedure for SZNZ8P26VMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZNZ8P26VMX2WT5G Tags
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