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onsemi SZESD7351XV2T1G
- Part No.:
- SZESD7351XV2T1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZESD7351XV2T1G.pdf
- Description:
- TVS DIODE 3.3VWM SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:5,005
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Product details
Overview
SZESD7351XV2T1G from onsemi is a unidirectional ESD protection diode in SOD−523 package, featuring 3.3 V stand-off voltage, 0.6 pF max junction capacitance, <1 ns response time, 8.0 V clamping voltage at 1 A, and IEC61000−4−2 Level 4 (±20 kV contact) compliance - deployed for RF antenna line and USB 2.0 high-speed interface protection.
For engineers reviewing the SZESD7351XV2T1G datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low capacitance for signal integrity, low clamping voltage for sensitive ICs, AEC−Q101 qualification for automotive use, and SOD−523 footprint constraints in space-constrained layouts.
Technical Context
This device operates as a unidirectional transient voltage suppressor with cathode-anode polarity, designed to clamp ESD transients before they reach downstream ICs. Its low dynamic resistance (<0.35 Ω) and fast turn-on ensure effective voltage limiting during sub-nanosecond ESD events per IEC61000−4−2.
The diode exhibits stable reverse leakage (<50 nA at 3.3 V) and maintains capacitance below 0.6 pF up to 1 GHz, enabling minimal insertion loss in RF paths. It is rated for −55 °C to +150 °C junction temperature and qualified to AEC−Q101 for automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage | 3.3 V - blocks normal operating signals while remaining non-conductive until ESD threshold is exceeded |
| Clamping Voltage @ 1 A | 8.0 V - limits peak voltage seen by protected IC during 1 A ESD pulse, safeguarding 3.3 V logic interfaces |
| Junction Capacitance | 0.43–0.6 pF @ 0 V, 1 MHz–<1 GHz - preserves signal integrity in USB 2.0 and RF antenna lines |
| Response Time | <1 ns - activates faster than typical ESD event rise time (≤1 ns), ensuring timely protection |
| ESD Rating | IEC61000−4−2 Level 4: ±20 kV contact - meets highest system-level ESD immunity requirement |
| Leakage Current | <50 nA @ 3.3 V - avoids loading of high-impedance RF or sensor nodes |
| Dynamic Resistance | 0.35 Ω - minimizes voltage overshoot under high-current transients via low impedance conduction path |
Pinout & Package
SZESD7351XV2T1G is housed in a Pb-free SOD−523 (Case 502) surface-mount package measuring 1.20 mm × 0.80 mm × 0.60 mm - optimized for ultra-dense PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to protected I/O line; conducts during positive ESD transients to ground |
| 2 | Anode | Connected to ground reference; completes clamping path for transient current dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.43–0.6 pF enables use on 480 Mbps USB 2.0 differential pairs without signal degradation |
| AEC−Q101 qualification | Validated for automotive infotainment and telematics modules requiring reliability across temperature and lifetime |
| Low clamping voltage | 8.0 V at 1 A ensures protected ICs remain within absolute maximum ratings during ESD strikes |
| Sub-1 ns response | Activates before ESD waveform peak, preventing voltage overshoot into sensitive RF front-end components |
| Pb-free, RoHS-compliant | Meets global environmental regulations and supports lead-free reflow soldering profiles (260 °C, 10 s) |
Applications
| USB 2.0 High-Speed Interface | Cellular Antenna Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− data lines in portable USB peripherals against user-hand ESD events. IC Role / Device Role: Unidirectional ESD clamp placed between connector and USB transceiver IC. Use Value: 0.6 pF capacitance avoids eye diagram distortion; 8.0 V clamping prevents transceiver latch-up or damage. | Use Scenario: Shielding LTE/5G antenna feedlines from ESD induced by SIM card insertion or housing contact. IC Role / Device Role: Series-connected ESD protector on RF path between antenna switch and LNA input. Use Value: Sub-1 ns response and 0.43 pF capacitance preserve RF gain and noise figure up to 3.8 GHz. |
| NFC Antenna Interface | Automotive Infotainment Display Port |
Use Scenario: Safeguarding 13.56 MHz NFC loop antenna traces from electrostatic discharge during card tap events. IC Role / Device Role: Bidirectional-capable unidirectional diode used across differential antenna terminals. Use Value: Low leakage (<50 nA) prevents detuning of resonant LC tank; compact SOD−523 fits tight coil routing. | Use Scenario: Protecting MIPI DSI or LVDS video lines in automotive center-stack displays exposed to service technician ESD. IC Role / Device Role: Point-of-entry ESD suppressor on display cable interface near connector. Use Value: AEC−Q101 qualification ensures operation at −40 °C to +105 °C; 20 kV contact rating exceeds ISO 10605 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD7351XV2T1G (same family, non-SZ) | No AEC−Q101 qualification; identical electrical specs and SOD−523 package | Not approved for automotive production; suitable for consumer USB/RF designs | Select when AEC−Q101 is not required and cost sensitivity favors standard grade |
| TPD2E001DRYR | 0.8 pF capacitance; dual-channel; 3.6 V stand-off; not AEC−Q101 qualified | Designed for USB D+/D− pair protection in single package; larger footprint (SOT-553) | Choose for dual-line protection where board area allows and lower clamping voltage (6.5 V @ 1 A) is prioritized |
Compared with ESD7351XV2T1G, the non-SZ variant offers identical performance without automotive qualification, while TPD2E001DRYR provides dual-line integration at higher capacitance and larger size - making SZESD7351XV2T1G optimal for space-constrained, AEC−Q101–mandated single-line RF/USB protection.
Availability
SZESD7351XV2T1G is available at Aetrix Electronics and suitable for USB 2.0 high-speed interfaces, cellular antenna lines, and automotive infotainment display ports requiring stable component supply and long-term lifecycle support.
Supply support for SZESD7351XV2T1G 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.
SZESD7351XV2T1G belongs to onsemi's ESD7351 Series - engineered specifically for ultra-low-capacitance, high-frequency ESD protection in automotive-grade and space-constrained RF and high-speed digital interfaces.
FAQ
What is the primary function of SZESD7351XV2T1G?
SZESD7351XV2T1G is a unidirectional ESD protection diode designed to safeguard voltage-sensitive circuits from electrostatic discharge and transient overvoltage events. It clamps transients to ≤8.0 V at 1 A while maintaining ultra-low capacitance (0.43–0.6 pF), making it ideal for high-frequency signal lines such as USB 2.0 and RF antenna paths. Its SOD−523 package supports miniaturized PCB layouts.
Is SZESD7351XV2T1G qualified for automotive applications?
Yes, SZESD7351XV2T1G is AEC−Q101 qualified and PPAP capable, confirming its suitability for automotive infotainment, telematics, and display systems. The "SZ" prefix denotes compliance with automotive-specific site and control change requirements, including extended temperature operation (−55 °C to +150 °C junction) and rigorous reliability testing beyond standard commercial grades.
What is the pin configuration and polarity of SZESD7351XV2T1G?
SZESD7351XV2T1G uses a 2-pin SOD−523 package with defined polarity: Pin 1 is the cathode (marked with polarity band), and Pin 2 is the anode (ground connection). This unidirectional configuration protects positive transients on I/O lines referenced to ground. The device must be oriented correctly in layout to ensure proper clamping direction.
How does SZESD7351XV2T1G compare to standard ESD diodes in RF applications?
SZESD7351XV2T1G delivers 0.43 pF capacitance at 1 MHz and maintains ≤0.6 pF up to 1 GHz - significantly lower than typical ESD diodes (often >1.0 pF). This minimizes insertion loss and preserves return loss in RF paths, enabling use on LTE/5G antenna feeds and NFC loops without degrading gain or noise figure. Its <1 ns response also outperforms many alternatives in transient suppression speed.
What are the key thermal and packaging specifications for SZESD7351XV2T1G?
SZESD7351XV2T1G is packaged in a Pb-free SOD−523 case (1.20 mm × 0.80 mm × 0.60 mm) rated for reflow soldering up to 260 °C (10 s). Its junction-to-ambient thermal resistance is not specified in the datasheet, but maximum power dissipation is 150 mW on FR-5 board at 25 °C. Operating junction temperature spans −55 °C to +150 °C, supporting harsh automotive and industrial environments.
SZESD7351XV2T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SC-79, SOD-523
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 5V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- RF Antenna
- Capacitance @ Frequency:
- 0.43pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
SZESD7351XV2T1G FAQ
1.How can I place an order for SZESD7351XV2T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZESD7351XV2T1G 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 SZESD7351XV2T1G reliable?
The price and inventory of SZESD7351XV2T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZESD7351XV2T1G is usually 5 days.
3.What payment methods are accepted for SZESD7351XV2T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZESD7351XV2T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZESD7351XV2T1G?
SZESD7351XV2T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZESD7351XV2T1G 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 SZESD7351XV2T1G?
For technical support, including SZESD7351XV2T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZESD7351XV2T1G requirements.
6.How does Aetrix verify that SZESD7351XV2T1G is sourced from the original manufacturer or authorized distributors?
All SZESD7351XV2T1G 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 SZESD7351XV2T1G meets industry standards.
7.What is the process for return or replacement of SZESD7351XV2T1G?
All SZESD7351XV2T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZESD7351XV2T1G, 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 SZESD7351XV2T1G part is unused and in its original packaging.
Return procedure for SZESD7351XV2T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZESD7351XV2T1G Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
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Diodes Incorporated
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
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Diodes Incorporated
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