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onsemi SESD9L5.0ST5G
- Part No.:
- SESD9L5.0ST5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SOD-923
- Datasheet:
-
SESD9L5.0ST5G.pdf
- Description:
- TVS DIODE 5VWM 9.8VC SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:24,883
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Product details
Overview
SESD9L5.0ST5G from onsemi is a unidirectional ESD protection diode in SOD-923 package, rated for 5.0 V working peak reverse voltage, 0.5 pF typical capacitance, 9.8 V clamping voltage at 1 A pulse, and IEC 61000-4-2 Level 4 (±15 kV air/±10 kV contact) compliance-designed for high-speed USB 2.0 data lines and RF antenna interfaces.
For engineers reviewing the SESD9L5.0ST5G datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low capacitance for signal integrity, low clamping voltage for IC-level ESD robustness, SOD-923 footprint constraints, and AEC-Q101 qualification for automotive front-end modules.
Technical Context
This device operates as a unidirectional transient voltage suppressor, leveraging silicon avalanche breakdown to clamp ESD transients before they reach sensitive downstream ICs. Its 5.0 V stand-off voltage ensures compatibility with 3.3 V and 5 V logic rails while maintaining margin against normal operating voltage excursions.
Clamping occurs within <1.0 ns, limiting voltage overshoot during IEC 61000-4-2 events. The 0.5 pF junction capacitance minimizes signal distortion on high-frequency lines up to 480 Mbps (USB 2.0 HS), and its 1.0 mm × 0.6 mm SOD-923 package supports dense PCB layouts near connectors and antennas.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Peak Reverse Voltage (VRWM) | 5.0 V - defines maximum continuous DC or RMS voltage the diode blocks without leakage exceeding 1.0 µA |
| Clamping Voltage (VC) | 9.8 V @ IPP = 1 A - peak voltage seen by protected IC during 8/20 µs surge, critical for IC input stage survivability |
| Junction Capacitance (C) | 0.5 pF @ VR = 0 V, f = 1 MHz - enables minimal insertion loss and phase shift on USB 2.0 and RF antenna paths |
| ESD Withstand (IEC 61000-4-2) | ±15 kV air / ±10 kV contact - meets Level 4 immunity for handheld and automotive infotainment ports |
| Package | SOD-923 (Case 514AB) - 1.0 mm × 0.6 mm × 0.4 mm footprint, compatible with standard 0201 reflow profiles (MSL 1, 260°C peak) |
| Leakage Current (IR) | 1.0 µA @ VRWM - ensures negligible standby power draw in battery-powered USB peripherals |
| Breakdown Voltage (VBR) | 5.4 V min @ IT = 1 mA - guarantees reliable turn-on margin above VRWM to avoid false triggering |
Pinout & Package
SOD-923 surface-mount package: 2-terminal, cathode-marked (band), 0.4 mm profile, Pb-free matte tin finish, MSL 1 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Protected Line Anode Connection | Connected to I/O line (e.g., USB D+); clamps positive transients to VCC rail when used with bias |
| 2 (Anode) | Reference Node | Tied to ground or VCC depending on unidirectional configuration; determines polarity of clamping action |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 0.5 pF capacitance | Maintains signal integrity on 480 Mbps USB 2.0 differential pairs without equalization overhead |
| AEC-Q101 qualified | Validated for automotive cabin electronics including USB-C ports and telematics antenna feeds |
| Sub-1 ns response time | Activates before ESD pulse energy couples into IC input structures, preventing latch-up or gate oxide damage |
| Low 9.8 V clamping at 1 A | Keeps stressed voltage below absolute maximum ratings of 1.8 V/3.3 V/5 V interface ICs (e.g., USB transceivers) |
| SOD-923 footprint | Enables placement directly at board edge connectors with minimal trace inductance, maximizing protection efficacy |
Applications
| USB 2.0 High-Speed Interface | Cellular Antenna Feed Line |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 host/device ports against user-handling ESD events. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between data line and ground, clamping positive/negative transients to safe voltage levels. Use Value: 0.5 pF capacitance avoids signal rise-time degradation, preserving eye diagram margin at 480 Mbps. | Use Scenario: Shielding LTE/5G antenna switch ICs and LNA inputs from electrostatic discharge during SIM card or module insertion. IC Role / Device Role / Timing Role: Series-connected ESD shunt on RF feed path, grounded via shortest possible path to preserve impedance match. Use Value: 9.8 V clamping prevents permanent damage to sub-100 nm RF CMOS front-ends with 1.2 V supply rails. |
| Automotive Infotainment USB Port | Industrial IoT Sensor Hub Interface |
Use Scenario: Hardening USB Type-A receptacles in head units and rear-seat entertainment systems per ISO 10605. IC Role / Device Role / Timing Role: AEC-Q101-qualified unidirectional suppressor tied to 5 V VBUS and chassis ground. Use Value: ±15 kV air discharge rating exceeds automotive OEM requirements, reducing field failure rates in humid environments. | Use Scenario: Safeguarding RS-485/USB-to-serial bridge ICs in smart metering and environmental sensor gateways. IC Role / Device Role / Timing Role: Point-of-entry protection on exposed communication ports subject to handling and cable coupling transients. Use Value: 150 mW power dissipation supports repeated ESD strikes without thermal runaway in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD9L5.0ST5G | 0.5 pF, 5.0 V VRWM, SOD-923 | Standard unidirectional USB/antenna protection | Baseline reference part with full AEC-Q101 validation |
| TPD2E001DRYR | 1.0 pF, 5.5 V VRWM, SOT-553 | Higher capacitance limits use to ≤12 Mbps interfaces; larger 1.6 mm × 1.6 mm footprint | Preferred where higher surge current rating (IEC 61000-4-2 ±20 kV) outweighs capacitance penalty |
Compared with TPD2E001DRYR, SESD9L5.0ST5G offers half the capacitance for high-speed signal paths but lower surge rating; compared with ESD9L3.3ST5G, it provides higher stand-off for 5 V systems while retaining identical package and clamping performance.
Availability
SESD9L5.0ST5G is available at Aetrix Electronics and suitable for USB 2.0 interface protection, cellular antenna feed-line hardening, and automotive infotainment port ESD suppression requiring stable component supply across production lifecycles.
Supply support for SESD9L5.0ST5G 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 (Nasdaq: ON) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The SESD9L series targets ultra-compact, high-frequency ESD protection-specifically engineered for space-constrained, high-data-rate interfaces like USB 2.0, HDMI, and cellular antenna lines where capacitance and clamping voltage are critical.
FAQ
What is the maximum clamping voltage of SESD9L5.0ST5G under IEC 61000-4-2 testing?
The SESD9L5.0ST5G exhibits a maximum clamping voltage of 9.8 V when subjected to a 1 A peak pulse current per IEC 61000-4-2 waveform. This value is measured across the device terminals during standardized ESD events and ensures downstream ICs remain within safe operating voltage limits. The SESD9L5.0ST5G maintains this clamping performance consistently across its qualified temperature range (−55 °C to +150 °C).
Is SESD9L5.0ST5G suitable for bidirectional signal lines like USB D+/D−?
Yes, SESD9L5.0ST5G is configured as a unidirectional TVS and must be used with appropriate biasing-typically paired with a second diode or referenced to VBUS-to protect bidirectional lines such as USB D+ and D−. Its 5.0 V VRWM aligns with standard 5 V USB power rails, and its 0.5 pF capacitance prevents signal integrity loss. The SESD9L5.0ST5G is not internally bidirectional but is routinely deployed in complementary arrangements for full-duplex interface protection.
Does SESD9L5.0ST5G meet automotive qualification standards?
Yes, SESD9L5.0ST5G is AEC-Q101 qualified and PPAP capable, making it suitable for automotive applications including infotainment USB ports, telematics antenna feeds, and body control module interfaces. It complies with IEC 61000-4-2 Level 4 (±15 kV air/±10 kV contact) and operates across −55 °C to +150 °C junction temperature. The SESD9L5.0ST5G also features Pb-free matte tin plating and MSL 1 moisture sensitivity rating for robust reflow assembly.
What is the leakage current specification for SESD9L5.0ST5G at rated voltage?
The SESD9L5.0ST5G specifies a maximum reverse leakage current of 1.0 µA at its working peak reverse voltage of 5.0 V (VRWM), measured at 25 °C ambient. This low leakage ensures minimal impact on battery life in portable devices and avoids loading effects on high-impedance sensor or RF bias networks. The SESD9L5.0ST5G maintains leakage below 10 µA across its full operating temperature range per characterization data.
Can SESD9L5.0ST5G be used in place of SESD9L3.3ST5G?
SESD9L5.0ST5G is not a direct replacement for SESD9L3.3ST5G due to its higher 5.0 V working peak reverse voltage versus 3.3 V. Substituting it in 3.3 V systems risks insufficient clamping margin and potential false triggering. However, in 5 V applications-such as USB VBUS lines or 5 V logic interfaces-the SESD9L5.0ST5G provides superior stand-off headroom. Always verify system voltage tolerances before interchanging SESD9L5.0ST5G and SESD9L3.3ST5G.
SESD9L5.0ST5G 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):
- 5.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.8V
- Current - Peak Pulse (10/1000µs):
- 1A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-923
SESD9L5.0ST5G FAQ
1.How can I place an order for SESD9L5.0ST5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SESD9L5.0ST5G 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 SESD9L5.0ST5G reliable?
The price and inventory of SESD9L5.0ST5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SESD9L5.0ST5G is usually 5 days.
3.What payment methods are accepted for SESD9L5.0ST5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SESD9L5.0ST5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SESD9L5.0ST5G?
SESD9L5.0ST5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SESD9L5.0ST5G 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 SESD9L5.0ST5G?
For technical support, including SESD9L5.0ST5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SESD9L5.0ST5G requirements.
6.How does Aetrix verify that SESD9L5.0ST5G is sourced from the original manufacturer or authorized distributors?
All SESD9L5.0ST5G 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 SESD9L5.0ST5G meets industry standards.
7.What is the process for return or replacement of SESD9L5.0ST5G?
All SESD9L5.0ST5G units undergo pre-shipment inspection (PSI). If there is an issue with SESD9L5.0ST5G, 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 SESD9L5.0ST5G part is unused and in its original packaging.
Return procedure for SESD9L5.0ST5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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