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onsemi SZESD7351P2T5G
- Part No.:
- SZESD7351P2T5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SOD-923
- Datasheet:
-
SZESD7351P2T5G.pdf
- Description:
- TVS DIODE 3.3VWM SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:8,599
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Product details
Overview
SZESD7351P2T5G from onsemi is a unidirectional ESD protection diode in SOD-923 package, featuring 3.3 V stand-off voltage, 0.6 pF max junction capacitance at 1 MHz, 8.0 V clamping voltage at 1 A peak pulse, <1.0 nA reverse leakage at 3.3 V, and <1 ns response time - designed for RF antenna line and USB 2.0 high-speed interface protection.
For engineers reviewing the SZESD7351P2T5G datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low capacitance for signal integrity, IEC 61000-4-2 Level 4 (±20 kV contact/air) compliance, AEC-Q101 qualification for automotive use, and SOD-923 footprint constraints in space-constrained layouts.
Technical Context
This device operates as a single-channel, unidirectional TVS diode with cathode-anode polarity, optimized for low-capacitance transient suppression on high-frequency signal lines. Its clamping behavior is characterized by dynamic resistance <0.35 Ω and clamping voltages of 8.0 V @ 1 A and 10 V @ 3 A per IEC 61000-4-5 waveform.
The SZESD7351P2T5G meets AEC-Q101 stress requirements and supports automotive-grade reliability with Pb-free, halogen-free, RoHS-compliant construction. Its 0.80 × 0.60 × 0.37 mm SOD-923 package enables placement directly at connector or IC I/O pins to minimize parasitic inductance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage | 3.3 V - maximum continuous reverse voltage before conduction begins; ensures no interference with 3.3 V logic or RF bias rails. |
| Clamping Voltage @ 1 A | 8.0 V - peak voltage across device during 1 A ESD pulse; limits stress on protected ICs such as USB transceivers or RF switches. |
| Junction Capacitance | 0.43–0.6 pF @ 0 V, 1 MHz - preserves signal integrity in >1 GHz RF paths and USB 2.0 (480 Mbps) data lines. |
| Reverse Leakage | <1.0 nA @ 3.3 V - negligible current draw that avoids DC bias shift in sensitive analog/RF front-ends. |
| ESD Rating | IEC 61000-4-2 Level 4: ±20 kV contact / ±20 kV air - certified immunity for handheld and automotive infotainment interfaces. |
| Response Time | <1 ns - enables sub-nanosecond turn-on to suppress fast-rising ESD transients before downstream circuitry is stressed. |
| Dynamic Resistance | 0.35 Ω - low impedance during clamping improves energy diversion efficiency and reduces voltage overshoot. |
Pinout & Package
SZESD7351P2T5G is housed in a 2-terminal SOD-923 surface-mount package (0.80 × 0.60 × 0.37 mm), optimized for ultra-compact PCB layouts and high-frequency routing. The package features a cathode band marking for polarity identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Protected Line Input | Connected to signal line (e.g., USB D+, antenna feed); conducts during positive ESD events to shunt current to ground. |
| 2 (Anode) | Ground Reference | Connected to system ground plane; completes ESD current path with minimal loop inductance when placed near I/O connector. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.43–0.6 pF enables use on 480 Mbps USB 2.0 and multi-GHz antenna lines without signal degradation. |
| AEC-Q101 qualified | Validated for automotive applications including infotainment, telematics, and ADAS sensor interfaces requiring extended temperature and reliability assurance. |
| Low clamping voltage | 8.0 V @ 1 A ensures protected ICs (e.g., RF power amplifiers, NFC controllers) remain below absolute maximum ratings during ESD strikes. |
| Pb-free, RoHS-compliant | Meets global environmental regulations and supports lead-free reflow soldering profiles up to 260 °C for 10 seconds. |
| Fast response time | <1 ns turn-on prevents nanosecond-scale ESD transients from propagating into sensitive baseband or RF ICs. |
Applications
| USB 2.0 High-Speed Interface | Cellular Antenna Feed Line |
|---|---|
Use Scenario: Protecting D+ and D− differential pair in portable devices against user-handling ESD events. IC Role / Device Role: Unidirectional ESD clamp placed immediately adjacent to USB connector to limit voltage excursion on data lines. Use Value: 0.6 pF capacitance avoids signal rise-time degradation and maintains eye diagram integrity at 480 Mbps. |
Use Scenario: Shielding LTE/5G antenna feed from electrostatic discharge during SIM card insertion or mechanical handling. IC Role / Device Role: Series-connected ESD protection between antenna switch and transceiver RF port. Use Value: Sub-1 ns response and 0.43 pF capacitance preserve RF insertion loss and return loss across 700 MHz–6 GHz bands. |
| NFC Communication Interface | Automotive Infotainment Display Port |
Use Scenario: Safeguarding 13.56 MHz NFC reader coil and matching network from human-body model (HBM) discharges. IC Role / Device Role: Low-capacitance shunt protector on NFC antenna input to maintain Q-factor and coupling efficiency. Use Value: 3.3 V stand-off voltage aligns with NFC controller I/O rail while clamping transients below 8 V to prevent latch-up. |
Use Scenario: ESD hardening of MIPI DSI or LVDS video lines in automotive center-stack displays exposed to service technician contact. IC Role / Device Role: Point-of-entry protection on display cable connectors meeting ISO 10605 and AEC-Q101 requirements. Use Value: ±20 kV IEC 61000-4-2 rating and AEC-Q101 qualification ensure robustness across -40°C to +125°C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD7351P2T5G (same family, non-SZ) | No AEC-Q101 qualification; identical electrical specs and SOD-923 package. | Not approved for automotive production; suitable for consumer-grade USB/antenna protection. | Select when automotive qualification is unnecessary and cost sensitivity is higher. |
| TPD2E001DRYR | 0.8 pF capacitance, 5.5 V stand-off, dual-channel configuration in UQFN-6 package. | Supports two-line protection (e.g., USB D+/D−) in one device; larger footprint than SOD-923. | Choose for dual-line applications where board area allows UQFN-6 and lower stand-off voltage is acceptable. |
Compared with ESD7351P2T5G and TPD2E001DRYR, the SZESD7351P2T5G uniquely combines automotive qualification, 0.6 pF capacitance, and 0.80 mm × 0.60 mm footprint - making it optimal for space-constrained, safety-critical RF and high-speed serial interfaces where AEC-Q101 compliance is mandatory.
Availability
SZESD7351P2T5G is available at Aetrix Electronics and suitable for USB 2.0 high-speed interfaces, cellular antenna feed lines, and automotive infotainment display ports requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SZESD7351P2T5G 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.
The SZESD7351P2T5G belongs to onsemi's ESD7351 Series - engineered specifically for ultra-low-capacitance, high-reliability ESD protection in RF and high-speed digital signal paths where board space and signal fidelity are critical.
FAQ
What is the primary function of the SZESD7351P2T5G?
The SZESD7351P2T5G is a unidirectional ESD protection diode designed to safeguard voltage-sensitive I/O lines from electrostatic discharge events. It operates by clamping transient voltages to safe levels-8.0 V at 1 A-while maintaining ultra-low capacitance (0.43–0.6 pF) to avoid degrading high-frequency signal integrity. Its role is strictly transient suppression, not voltage regulation or signal conditioning.
Is the SZESD7351P2T5G qualified for automotive applications?
Yes, the SZESD7351P2T5G is AEC-Q101 qualified and PPAP capable, confirming its suitability for automotive applications including infotainment systems, telematics modules, and ADAS sensor interfaces. This qualification covers stress testing across temperature, humidity, mechanical shock, and ESD robustness per automotive reliability standards-not just electrical specs.
What package type does the SZESD7351P2T5G use, and why does it matter?
The SZESD7351P2T5G uses the SOD-923 package (0.80 × 0.60 × 0.37 mm), one of the smallest standard discrete packages available. Its compact size minimizes PCB real estate usage and parasitic inductance-critical for effective ESD suppression on high-frequency lines like antenna feeds or USB 2.0. The small footprint also enables placement directly at I/O connectors.
How does the 0.6 pF capacitance of the SZESD7351P2T5G impact high-speed signal performance?
The 0.6 pF maximum junction capacitance of the SZESD7351P2T5G ensures minimal loading on high-speed signals: it preserves signal rise/fall times in USB 2.0 (480 Mbps), maintains return loss in 700 MHz–6 GHz antenna paths, and avoids resonance issues in NFC 13.56 MHz circuits. Measured CV curves confirm stable capacitance below 0.6 pF up to 1 GHz.
What is the difference between SZESD7351P2T5G and ESD7351P2T5G?
The SZESD7351P2T5G and ESD7351P2T5G share identical electrical specifications and SOD-923 packaging, but only the SZ-prefix version is AEC-Q101 qualified and designated for automotive and other applications requiring controlled manufacturing site and change management. The "SZ" prefix indicates enhanced process control and traceability-not functional differentiation.
SZESD7351P2T5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SOD-923
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-923
SZESD7351P2T5G FAQ
1.How can I place an order for SZESD7351P2T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZESD7351P2T5G 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 SZESD7351P2T5G reliable?
The price and inventory of SZESD7351P2T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZESD7351P2T5G is usually 5 days.
3.What payment methods are accepted for SZESD7351P2T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZESD7351P2T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZESD7351P2T5G?
SZESD7351P2T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZESD7351P2T5G 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 SZESD7351P2T5G?
For technical support, including SZESD7351P2T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZESD7351P2T5G requirements.
6.How does Aetrix verify that SZESD7351P2T5G is sourced from the original manufacturer or authorized distributors?
All SZESD7351P2T5G 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 SZESD7351P2T5G meets industry standards.
7.What is the process for return or replacement of SZESD7351P2T5G?
All SZESD7351P2T5G units undergo pre-shipment inspection (PSI). If there is an issue with SZESD7351P2T5G, 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 SZESD7351P2T5G part is unused and in its original packaging.
Return procedure for SZESD7351P2T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZESD7351P2T5G Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
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D5V0H1B2LP-7B
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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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