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onsemi SZESD9X5.0ST5G
- Part No.:
- SZESD9X5.0ST5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SOD-923
- Datasheet:
-
SZESD9X5.0ST5G.pdf
- Description:
- TVS DIODE 5VWM 12.3VC SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:24,471
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Product details
Overview
SZESD9X5.0ST5G from onsemi is a unidirectional ESD protection diode designed to safeguard I/O lines in portable electronics against electrostatic discharge. It features a 5.0 V working peak reverse voltage (VRWM), clamps at ≤12.3 V under 8.7 A peak pulse current (IPP), and delivers <1 ns response time with 65 pF capacitance - enabling robust protection for high-speed USB 2.0, HDMI, and audio interfaces in space-constrained designs.
For engineers reviewing the SZESD9X5.0ST5G datasheet, pinout, applications, or equivalent options, key selection criteria include IEC 61000-4-2 Level 4 compliance (±30 kV contact), AEC-Q101 qualification, SOD-923 package footprint, low leakage (<1.0 µA @ 5.0 V), and automotive-grade traceability support.
Technical Context
The SZESD9X5.0ST5G operates as a unidirectional transient voltage suppression diode, leveraging silicon avalanche breakdown to divert ESD energy away from sensitive downstream ICs. Its clamping behavior is defined per IEC 61000-4-2 waveform (8/20 µs surge), with VC = 12.3 V at IPP = 8.7 A and Ppk = 107 W.
It exhibits a typical breakdown voltage (VBR) of 6.2 V at IT = 1.0 mA, stand-off margin of +1.2 V above VRWM, and junction temperature range from −55 °C to +150 °C - supporting operation in automotive cabin and industrial edge environments where thermal stability is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 5.0 V - Maximum continuous reverse operating voltage before conduction begins; ensures no interference with 5 V logic signaling. |
| VBR (min) | 6.2 V @ 1.0 mA - Confirmed avalanche onset threshold; provides 1.2 V design margin above VRWM. |
| VC @ IPP | 12.3 V @ 8.7 A - Clamped voltage during IEC 61000-4-2 8 kV contact discharge; protects 3.3 V/5 V interface ICs. |
| C (max) | 65 pF @ 0 V, 1 MHz - Low capacitance preserves signal integrity in USB 2.0 and audio paths. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 Level 4 - Full system-level ESD immunity without external filtering. |
| Leakage (IR) | ≤1.0 µA @ 5.0 V - Negligible standby current draw; avoids battery drain in always-on sensor nodes. |
| Package | SOD-923 (1.0 mm × 0.60 mm × 0.43 mm) - Ultra-compact footprint for high-density PCB layouts. |
Pinout & Package
SZESD9X5.0ST5G is housed in a surface-mount SOD-923 package (Case 514AB), measuring 1.0 mm × 0.60 mm × 0.43 mm max, with matte tin lead finish and MSL 1 reflow compatibility up to 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded) | Cathode | Connected to protected line (e.g., USB D+); conducts during positive ESD transients to ground. |
| 2 | Anode | Connected to system ground; completes current path during ESD events; polarity-sensitive placement required. |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 Level 4 Compliance | Guarantees ±30 kV contact/air ESD immunity without derating - eliminates need for secondary protection stages. |
| AEC-Q101 Qualified | Validated for automotive applications including infotainment and ADAS sensor interfaces with full PPAP documentation. |
| Low 65 pF Capacitance | Enables use on 480 Mbps USB 2.0 data lines without signal rise-time degradation or eye-diagram closure. |
| 1.0 mm × 0.60 mm Footprint | Reduces board area by >50% vs. SOD-523; supports miniaturized earbuds, wearables, and IoT sensors. |
| Pb-Free & RoHS Compliant | Meets global environmental regulations with 100% matte Sn termination and UL 94 V-0 epoxy molding compound. |
Applications
| USB 2.0 Interface Protection | HDMI DDC Line Protection |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines in smartphones and portable SSDs against repeated plug/unplug ESD events. IC Role / Device Role: Unidirectional shunt clamp placed between data line and ground, activated only during overvoltage transients. Use Value: Prevents latch-up or gate oxide damage in USB transceivers while maintaining 480 Mbps data integrity via 65 pF capacitance. | Use Scenario: Safeguarding HDMI Display Data Channel (DDC) clock and data lines in monitors and set-top boxes. IC Role / Device Role: Standby-mode ESD suppressor with <1.0 µA leakage, ensuring reliable I²C communication at 100 kHz. Use Value: Eliminates false DDC disconnects caused by ESD-induced bus glitches without loading the 3.3 V pull-up network. |
| Automotive Infotainment Touchscreen | Portable Audio Jack ESD Guard |
Use Scenario: Shielding capacitive touchscreen controller I/O pins in vehicle head units exposed to passenger-handling ESD. IC Role / Device Role: Primary ESD barrier on analog front-end inputs, rated for −40 °C to +105 °C ambient operation. Use Value: Maintains AEC-Q101 qualification and 150 °C junction rating to survive under-hood thermal cycling and cabin humidity swings. | Use Scenario: Protecting 3.5 mm TRRS audio jack microphone and headset detection lines in wireless earbuds and Bluetooth speakers. IC Role / Device Role: Bidirectionally referenced unidirectional diode (cathode to line, anode to ground) guarding single-ended analog paths. Use Value: Blocks >16 kV HBM discharges without audible pop/noise injection due to sub-1 ns response and low dynamic impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD9X5.0ST5G | Same electrical specs and SOD-923 package; non-automotive grade; lacks AEC-Q101 validation and SZ-prefix traceability. | Targeted at consumer electronics only; not approved for automotive production BOMs. | Select when cost sensitivity outweighs automotive qualification requirements and PPAP documentation is unnecessary. |
| TPD2E001DRYR | 2-channel, 0.65 pF/channel, 5.5 V VRWM, SOT-553 package; higher integration but larger footprint (1.6 mm × 1.6 mm). | Designed for dual-line protection (e.g., USB D+/D− together); requires more PCB area and different layout routing. | Choose when protecting paired differential signals simultaneously and ultra-low capacitance is mandatory over size constraints. |
Compared with ESD9X5.0ST5G and TPD2E001DRYR, SZESD9X5.0ST5G uniquely combines AEC-Q101 qualification, minimal 0.6 mm width, and proven 12.3 V clamping at 8.7 A - making it optimal for automotive and space-limited single-line protection where supply-chain traceability and thermal robustness are critical.
Availability
SZESD9X5.0ST5G is available at Aetrix Electronics and suitable for automotive infotainment systems, portable medical sensors, and industrial handheld terminals requiring stable component supply across extended product lifecycles.
Supply support for SZESD9X5.0ST5G 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 (formerly ON Semiconductor) is a global semiconductor supplier delivering energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
SZESD9X5.0ST5G belongs to the ESD9X Series - a family of micro-packaged unidirectional diodes engineered specifically for board-level ESD protection in high-density portable and automotive electronics where space, reliability, and IEC/ISO compliance are non-negotiable.
FAQ
What is the maximum clamping voltage of SZESD9X5.0ST5G under IEC 61000-4-2 testing?
The SZESD9X5.0ST5G clamps to a maximum of 12.3 V when subjected to an 8.7 A peak pulse current (IPP), which corresponds to the IEC 61000-4-2 8 kV contact discharge waveform. This value is measured across the device terminals during standardized ESD testing and ensures downstream 5 V logic ICs remain within safe operating voltage limits. The SZESD9X5.0ST5G datasheet confirms this clamping performance under specified test conditions.
Is SZESD9X5.0ST5G qualified for automotive applications?
Yes, SZESD9X5.0ST5G is AEC-Q101 qualified and PPAP capable, with the "SZ" prefix indicating compliance with automotive-specific site and control change requirements. It supports junction temperatures from −55 °C to +150 °C and meets IEC 61000-4-2 Level 4 ESD immunity - making it suitable for infotainment, body control, and ADAS sensor interfaces. The SZESD9X5.0ST5G certification documentation is available through onsemi's official automotive support portal.
What is the capacitance of SZESD9X5.0ST5G and how does it affect high-speed signal lines?
SZESD9X5.0ST5G has a maximum capacitance of 65 pF at 0 V and 1 MHz, verified per its official datasheet. This low value minimizes signal distortion on high-speed interfaces such as USB 2.0 (480 Mbps), preserving rise/fall times and eye diagram margins. Unlike higher-capacitance alternatives (>100 pF), the SZESD9X5.0ST5G avoids data jitter or bit errors - a key reason it is widely deployed in smartphone and portable SSD designs.
Does SZESD9X5.0ST5G support bidirectional ESD protection?
No, SZESD9X5.0ST5G is a unidirectional ESD protection diode, configured with cathode (Pin 1) on the protected line and anode (Pin 2) tied to ground. It conducts only during positive transients on the line relative to ground. For bidirectional protection, two SZESD9X5.0ST5G devices would be required in series opposition - though dedicated bidirectional parts like ESD9L5.0ST5G are recommended instead. The SZESD9X5.0ST5G datasheet explicitly defines its unidirectional operation in the Electrical Characteristics table.
What is the package type and mounting specification for SZESD9X5.0ST5G?
SZESD9X5.0ST5G uses the SOD-923 package (Case 514AB), measuring 1.0 mm × 0.60 mm × 0.43 mm max, with matte tin leads and MSL 1 rating. It supports reflow soldering up to 260 °C for 10 seconds and may be mounted in any orientation on FR-5 or equivalent PCBs. The SZESD9X5.0ST5G mechanical drawings and tape-and-reel packaging details (8000 units per reel) are documented in the official onsemi datasheet revision 10.
SZESD9X5.0ST5G 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):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6.2V
- Voltage - Clamping (Max) @ Ipp:
- 12.3V
- Current - Peak Pulse (10/1000µs):
- 8.7A (8/20µs)
- Power - Peak Pulse:
- 107W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 65pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-923
SZESD9X5.0ST5G FAQ
1.How can I place an order for SZESD9X5.0ST5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZESD9X5.0ST5G 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 SZESD9X5.0ST5G reliable?
The price and inventory of SZESD9X5.0ST5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZESD9X5.0ST5G is usually 5 days.
3.What payment methods are accepted for SZESD9X5.0ST5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZESD9X5.0ST5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZESD9X5.0ST5G?
SZESD9X5.0ST5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZESD9X5.0ST5G 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 SZESD9X5.0ST5G?
For technical support, including SZESD9X5.0ST5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZESD9X5.0ST5G requirements.
6.How does Aetrix verify that SZESD9X5.0ST5G is sourced from the original manufacturer or authorized distributors?
All SZESD9X5.0ST5G 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 SZESD9X5.0ST5G meets industry standards.
7.What is the process for return or replacement of SZESD9X5.0ST5G?
All SZESD9X5.0ST5G units undergo pre-shipment inspection (PSI). If there is an issue with SZESD9X5.0ST5G, 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 SZESD9X5.0ST5G part is unused and in its original packaging.
Return procedure for SZESD9X5.0ST5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZESD9X5.0ST5G Tags
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