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onsemi SZESD8351MUT5G
- Part No.:
- SZESD8351MUT5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
SZESD8351MUT5G.pdf
- Description:
- TVS DIODE 3.3VWM 11.2VC 2X3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,503
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Product details
Overview
SZESD8351MUT5G from onsemi is an ultra-low-capacitance ESD protection diode designed for high-speed data lines, featuring 0.40 pF typical junction capacitance at 2.5 GHz, 3.3 V reverse working voltage, and 8.2 V clamping voltage at 5 A peak pulse current. It protects USB 2.0 and eSATA interfaces against IEC 61000-4-2 Level 4 (±15 kV contact) and ISO 10605 (±30 kV) ESD events.
For engineers reviewing the SZESD8351MUT5G datasheet, pinout, applications, or equivalent options, key selection criteria include sub-0.5 pF RF capacitance, latch-up-free operation in USB 2.0 HS/FS and DisplayPort, AEC-Q101 qualification, and X3DFN2 package compatibility with high-density PCB layouts.
Technical Context
The SZESD8351MUT5G employs a snap-back SCR-based structure optimized for fast transient response and low dynamic resistance (0.62 Ω anode-to-cathode), enabling effective clamping during 8/20 µs surge events without latch-up in USB 2.0 and DisplayPort signal paths. Its design targets systems requiring <1.0 V holding voltage and <500 nA leakage at 3.3 V.
Unlike HDMI-capable alternatives, this device is explicitly validated for latch-up–free operation in USB 2.0 LS/FS/HS and USB 3.0 SS applications per load-line analysis in AND9116/D. It does not meet HDMI 1.4 TMDS requirements due to insufficient IH(min) margin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage | 3.3 V - Matches standard USB 2.0 I/O rail voltage, ensuring no forward conduction during normal operation. |
| Junction Capacitance | 0.40 pF @ 2.5 GHz - Minimizes signal distortion on 480 Mbps USB 2.0 differential pairs and eSATA links. |
| Clamping Voltage | 8.2 V @ 5 A, 8/20 µs - Limits transient overvoltage to safe levels for 3.3 V tolerant transceivers. |
| ESD Rating | ±15 kV IEC 61000-4-2 contact - Meets industrial and automotive end-equipment immunity requirements. |
| Holding Voltage | 1.15 V - Ensures reliable turn-off after ESD event, preventing sustained conduction in data line paths. |
| Dynamic Resistance | 0.62 Ω (anode-to-cathode) - Enables low-voltage drop during high-current clamping, reducing power dissipation. |
Pinout & Package
X3DFN2 package (0.62 mm × 0.32 mm × 0.24 mm, 0.35 mm pitch) with side-wettable flanks for automated optical inspection. Moisture sensitivity level (MSL) 1, Pb-free, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to system ground (GND); provides low-impedance discharge path for positive ESD transients on I/O line. |
| 2 | Anode | Connected to protected high-speed data line (e.g., USB D+ or D−); conducts during negative ESD events to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RF capacitance | 0.40 pF @ 2.5 GHz - Preserves signal integrity on 480 Mbps USB 2.0 channels with <0.1 dB insertion loss up to 3 GHz. |
| Latch-up–free operation | Validated for USB 2.0 HS/FS and DisplayPort per load-line analysis - Eliminates risk of destructive DC latch-up after ESD strike. |
| AEC-Q101 qualification | Automotive-grade reliability with −55 °C to +125 °C operating junction range - Suitable for infotainment and ADAS interface protection. |
| IEC/ISO compliance | Passes IEC 61000-4-2 Level 4 (±15 kV contact) and ISO 10605 (±30 kV) - Meets global EMC certification requirements for end equipment. |
Applications
| USB 2.0 Interface Protection | eSATA Data Line Protection |
|---|---|
|
Use Scenario: Protecting D+ and D− differential pairs in portable USB 2.0 host/device ports exposed to user-handling ESD. IC Role / Device Role: Bidirectional transient voltage suppressor placed between connector and USB PHY IC. Use Value: 0.40 pF capacitance avoids signal rise-time degradation, while 8.2 V clamping prevents PHY latch-up or damage during ±15 kV contact discharge. |
Use Scenario: Shielding eSATA TX/RX lines in external storage enclosures subject to frequent cable insertion/removal. IC Role / Device Role: Low-capacitance ESD clamp on each signal line referenced to chassis ground. Use Value: Sub-0.5 pF capacitance maintains 3 Gbps signal fidelity; ±30 kV ISO 10605 rating covers harsh industrial handling environments. |
| DisplayPort Source Protection | Automotive Infotainment USB Hub |
|
Use Scenario: Safeguarding DisplayPort main link lanes (LANE 0–3) in laptop docking stations and monitors. IC Role / Device Role: Per-lane ESD protection diode array placed immediately adjacent to DP connector. Use Value: Latch-up–free operation confirmed per Table 1 for DisplayPort; 1.15 V holding voltage ensures clean recovery post-transient. |
Use Scenario: Protecting USB 2.0 upstream/downstream ports in automotive head units with extended temperature requirements. IC Role / Device Role: AEC-Q101 qualified ESD suppressor on each USB data line, mounted near connector. Use Value: −55 °C to +125 °C operating range and PPAP capability support OEM production; 0.40 pF enables full-speed USB operation across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD8004MUT5G | 0.35 pF @ 2.5 GHz; 3.3 V VRWM; 7.5 V VC @ 5 A; SOD-523 package (1.20 × 0.80 mm) | Lower capacitance but larger footprint; not AEC-Q101 qualified | Select for cost-sensitive consumer USB 2.0 designs where automotive qualification is unnecessary. |
| ESD8104MUT5G | 0.50 pF @ 2.5 GHz; 5.0 V VRWM; 10.5 V VC @ 5 A; supports HDMI 1.4 TMDS latch-up–free operation | Higher clamping voltage and wider VRWM; validated for HDMI, not USB-optimized | Choose when protecting HDMI 1.4/1.3a TMDS lines; unsuitable for 3.3 V USB 2.0 due to higher VC and VRWM mismatch. |
Compared with SZESD8351MUT5G, ESD8004MUT5G offers lower capacitance but lacks automotive qualification and uses a larger SOD-523 package, while ESD8104MUT5G supports HDMI but clamps at higher voltage and is incompatible with 3.3 V USB signal rails.
Availability
SZESD8351MUT5G is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment systems, and DisplayPort source applications requiring stable component supply, AEC-Q101 compliance, and ultra-low-capacitance ESD suppression.
Supply support for SZESD8351MUT5G 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
SZESD8351MUT5G belongs to the ESD8000 Series - a family of SCR-based ESD protection diodes engineered specifically for latch-up–free, high-speed data line protection in USB, DisplayPort, and eSATA systems.
FAQ
What is the maximum junction temperature rating for SZESD8351MUT5G?
The SZESD8351MUT5G has a specified operating junction temperature range of −55 °C to +125 °C, making it suitable for under-hood automotive and industrial environments. This rating is verified per AEC-Q101 stress testing and applies across its full electrical performance envelope, including during 5 A TLP pulses.
Is SZESD8351MUT5G compatible with USB 2.0 High-Speed (480 Mbps) signaling?
Yes, SZESD8351MUT5G is explicitly validated for USB 2.0 High-Speed operation. Its 0.40 pF junction capacitance at 2.5 GHz and latch-up–free behavior per Table 1 ensure signal integrity and reliability on 480 Mbps differential pairs without degrading eye diagram margins or causing false triggering.
Does SZESD8351MUT5G meet IEC 61000-4-2 Level 4 ESD immunity requirements?
Yes, SZESD8351MUT5G is rated for ±15 kV contact discharge per IEC 61000-4-2 Level 4 and ±15 kV air discharge. This is confirmed in the Maximum Ratings table and supported by TLP characterization showing 8.2 V clamping at 5 A, well below the 3.3 V rail tolerance of protected ICs.
What package type is used for SZESD8351MUT5G, and what are its dimensions?
SZESD8351MUT5G uses the X3DFN2 package (Case 152AF), measuring 0.62 mm × 0.32 mm × 0.24 mm with 0.35 mm pin pitch. Its side-wettable flank design enables automated optical inspection, and it is supplied in 15,000-unit tape-and-reel format per ordering information.
Can SZESD8351MUT5G be used to protect HDMI 1.4 TMDS lines?
No, SZESD8351MUT5G is not recommended for HDMI 1.4 TMDS protection. The datasheet explicitly states it should not be used for HDMI due to latch-up risk, citing ESD8104 or ESD8040 as alternatives. Table 1 confirms insufficient IH(min) margin for HDMI's 54.78 mA requirement.
SZESD8351MUT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- 0201 (0603 Metric)
- Series:
- ESD8351
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 5.5V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 0.25pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-X3DFN (0.6x0.3) (0201)
SZESD8351MUT5G FAQ
1.How can I place an order for SZESD8351MUT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZESD8351MUT5G 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 SZESD8351MUT5G reliable?
The price and inventory of SZESD8351MUT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZESD8351MUT5G is usually 5 days.
3.What payment methods are accepted for SZESD8351MUT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZESD8351MUT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZESD8351MUT5G?
SZESD8351MUT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZESD8351MUT5G 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 SZESD8351MUT5G?
For technical support, including SZESD8351MUT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZESD8351MUT5G requirements.
6.How does Aetrix verify that SZESD8351MUT5G is sourced from the original manufacturer or authorized distributors?
All SZESD8351MUT5G 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 SZESD8351MUT5G meets industry standards.
7.What is the process for return or replacement of SZESD8351MUT5G?
All SZESD8351MUT5G units undergo pre-shipment inspection (PSI). If there is an issue with SZESD8351MUT5G, 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 SZESD8351MUT5G part is unused and in its original packaging.
Return procedure for SZESD8351MUT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZESD8351MUT5G Tags
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