onsemi ESD9P5.0ST5G
- Part No.:
- ESD9P5.0ST5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SOD-923
- Datasheet:
-
ESD9P5.0ST5G.pdf
- Description:
- TVS DIODE 5VWM 9.8VC SOD923
- Quantity:
- Payment:

- Shipping:

Inventory:7,127
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Product details
Overview
ESD9P5.0ST5G from onsemi is a unidirectional ESD protection diode designed for high-speed data lines, featuring 1.3 pF capacitance, 5.0 V stand-off voltage, 9.8 V clamping voltage at 1 A, IEC61000−4−2 Level 4 (±15 kV air/±10 kV contact) compliance, and AEC−Q101 qualification - deployed in USB 2.0 interfaces to safeguard transceivers from electrostatic discharge.
For engineers reviewing the ESD9P5.0ST5G datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low capacitance for signal integrity, sub-1 ns response time, SOD−923 package compatibility with space-constrained layouts, and verified clamping performance under IEC61000−4−2 surge conditions.
Technical Context
This device operates as a unidirectional transient voltage suppressor, leveraging silicon avalanche diode structure to clamp ESD-induced overvoltage before it reaches downstream ICs. Its low-leakage design (≤1.0 µA at 5.0 V) ensures minimal impact on signal DC bias, while fast junction response (<1.0 ns) enables effective suppression of nanosecond-scale ESD pulses.
The ESD9P5.0ST5G integrates into PCB-level protection schemes where line capacitance must remain below 1.5 pF to preserve USB 2.0 eye diagram integrity. It is rated for 150 mW power dissipation on FR−5 board and supports reflow up to 260°C, meeting MSL 1 requirements without dry-pack handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance | 1.3 pF @ 0 V, 1 MHz - preserves signal integrity on USB 2.0 (480 Mbps) and other high-speed interfaces |
| Stand-off Voltage | 5.0 V - matches standard USB VBUS and I/O rail operating range without false triggering |
| Clamping Voltage | 9.8 V @ 1 A IPP - limits transient voltage seen by protected IC to safe level during IEC61000−4−2 events |
| ESD Rating | ±15 kV air / ±10 kV contact per IEC61000−4−2 Level 4 - exceeds industrial and automotive system immunity requirements |
| Leakage Current | ≤1.0 µA @ 5.0 V - avoids loading of high-impedance data lines or pull-up/pull-down networks |
| Response Time | <1.0 ns - activates before ESD pulse energy couples into sensitive receiver circuitry |
| Package | SOD−923 (1.00 × 0.60 × 0.37 mm) - enables placement adjacent to connectors with minimal PCB area use |
Pinout & Package
SOD−923 surface-mount package: 2-terminal, ultra-small outline (1.00 mm × 0.60 mm × 0.37 mm), matte tin-plated leads, void-free thermosetting epoxy body rated UL 94 V−0, MSL 1, compatible with standard reflow profiles up to 260°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to protected signal line; reverse-biased during normal operation; conducts during positive ESD transients |
| 2 | Anode | Connected to ground reference; completes clamping path during both polarities of ESD event via internal diode architecture |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 1.3 pF enables use on 480 Mbps USB 2.0, HDMI DDC, and other >100 MHz digital buses without signal degradation |
| AEC−Q101 qualification | Validated for automotive infotainment and body electronics requiring robust ESD resilience across −40°C to +125°C ambient |
| Pb-free & RoHS compliant | Meets global environmental regulations and supports lead-free assembly processes without reliability compromise |
| Low clamping voltage | 9.8 V clamping at 1 A ensures protected ICs remain within absolute maximum ratings during worst-case ESD strikes |
Applications
| USB 2.0 Interface Protection | Automotive Infotainment Ports |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 host/device ports against user-handling ESD events. IC Role / Device Role: Unidirectional shunt protector placed between signal line and chassis/ground plane. Use Value: 1.3 pF capacitance prevents eye diagram closure; 9.8 V clamping prevents PHY layer latch-up or damage. | Use Scenario: Safeguarding HDMI CEC, USB-C, or auxiliary data lines in head units and display modules. IC Role / Device Role: Board-level ESD suppressor mounted directly at connector entry point. Use Value: AEC−Q101 qualification ensures reliability across thermal cycling and vibration; ±15 kV air rating meets ISO 10605 requirements. |
| Industrial Human-Machine Interface | Medical Diagnostic Equipment Ports |
Use Scenario: Shielding RS-232, CAN FD, or touch controller I²C lines on factory HMIs exposed to operator contact. IC Role / Device Role: Point-of-entry transient suppressor on front-panel interface traces. Use Value: Sub-1 ns response captures fast-rising ESD spikes before propagation; low leakage avoids interference with low-current sensing circuits. | Use Scenario: Protecting patient-monitoring device USB, SD card, or serial debug ports from clinical environment ESD. IC Role / Device Role: Secondary-level ESD guard after primary filtering, placed near micro-USB or mini-B receptacles. Use Value: 5.0 V stand-off aligns with 3.3 V/5 V logic rails; RoHS/Pb-free compliance satisfies IEC 60601-1 safety and environmental mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | Bi-directional configuration; 1.0 pF capacitance; 5.5 V stand-off; 12 V clamping @ 1 A | Supports AC-coupled or bidirectional signal lines (e.g., HDMI, Ethernet); less suitable for strictly unidirectional VBUS-side protection | Choose when protecting differential pairs or lines with symmetric voltage swing around ground |
| SP1001-01UTG | Unidirectional; 0.35 pF capacitance; 5.0 V stand-off; 12.5 V clamping @ 1 A; SOD-923 package | Lower capacitance ideal for >1 Gbps interfaces; higher clamping voltage requires margin verification on protected ICs | Prefer for PCIe Gen3, MIPI D-PHY, or other ultra-high-speed links where <0.5 pF is mandatory |
Compared with TPD2E001DRYR and SP1001-01UTG, the ESD9P5.0ST5G delivers balanced performance for USB 2.0: its 1.3 pF capacitance avoids signal distortion while maintaining lower clamping (9.8 V) than SP1001-01UTG, and its unidirectional topology simplifies layout versus bi-directional alternatives where polarity is fixed.
Availability
ESD9P5.0ST5G is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment port hardening, and industrial HMI ESD mitigation requiring stable component supply and long-term lifecycle support.
Supply support for ESD9P5.0ST5G 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 (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 ESD9P Series targets high-speed interface protection, engineered specifically to meet stringent capacitance, clamping, and qualification requirements of USB, HDMI, and automotive serial bus designs.
FAQ
What is the maximum operating temperature range for ESD9P5.0ST5G?
The ESD9P5.0ST5G has a junction and storage temperature range of −55°C to +150°C. This wide thermal capability supports deployment in under-hood automotive environments and industrial enclosures with passive cooling. The device maintains specified clamping and leakage performance across this full range, as validated per AEC−Q101 stress testing protocols. ESD9P5.0ST5G remains functional and reliable even during sustained operation at +125°C ambient.
Does ESD9P5.0ST5G support automated optical inspection (AOI) after reflow?
Yes, ESD9P5.0ST5G's SOD−923 package features a visible cathode marking band and consistent lead geometry, enabling reliable AOI detection. Its matte tin finish provides uniform reflectivity, and the 1.00 mm × 0.60 mm body size falls within standard AOI camera resolution thresholds. ESD9P5.0ST5G has been qualified for use in high-yield SMT lines with post-reflow inspection systems verifying solder joint integrity and component placement accuracy.
Can ESD9P5.0ST5G be used on bidirectional data lines like I²C?
No - ESD9P5.0ST5G is a unidirectional device intended for lines referenced to ground with defined polarity, such as USB D+ and D−. For bidirectional buses like I²C, a bi-directional ESD suppressor (e.g., TPD2E001DRYR) is required to clamp both positive and negative transients. Using ESD9P5.0ST5G on I²C would leave the line vulnerable to negative ESD events, risking damage to the master or slave devices.
What is the peak pulse current rating for ESD9P5.0ST5G?
The ESD9P5.0ST5G is rated for a maximum reverse peak pulse current (IPP) of 1 A under the 8/20 µs waveform per IEC61000−4−2 test conditions. Its clamping voltage is specified at this current level (9.8 V), and the device sustains this stress without parametric shift or failure. ESD9P5.0ST5G is not rated for lightning-surges or longer-duration transients beyond standardized ESD waveforms.
How does ESD9P5.0ST5G compare to older ESD9B series in terms of capacitance?
ESD9P5.0ST5G achieves 1.3 pF typical capacitance - significantly lower than the ESD9B5.0ST5G (3.5 pF). This reduction enables use on faster interfaces like USB 2.0 without equalization or signal conditioning. The ESD9P5.0ST5G also improves clamping voltage (9.8 V vs. 12.5 V) and adds AEC−Q101 qualification, making it the preferred replacement for ESD9B5.0ST5G in new designs demanding higher speed and automotive compliance.
ESD9P5.0ST5G 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):
- 5.8V
- Voltage - Clamping (Max) @ Ipp:
- 9.8V
- Current - Peak Pulse (10/1000µs):
- 1A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 1.3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-923
ESD9P5.0ST5G FAQ
1.How can I place an order for ESD9P5.0ST5G through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD9P5.0ST5G 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 ESD9P5.0ST5G reliable?
The price and inventory of ESD9P5.0ST5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD9P5.0ST5G is usually 5 days.
3.What payment methods are accepted for ESD9P5.0ST5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD9P5.0ST5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD9P5.0ST5G?
ESD9P5.0ST5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD9P5.0ST5G 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 ESD9P5.0ST5G?
For technical support, including ESD9P5.0ST5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD9P5.0ST5G requirements.
6.How does Aetrix verify that ESD9P5.0ST5G is sourced from the original manufacturer or authorized distributors?
All ESD9P5.0ST5G 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 ESD9P5.0ST5G meets industry standards.
7.What is the process for return or replacement of ESD9P5.0ST5G?
All ESD9P5.0ST5G units undergo pre-shipment inspection (PSI). If there is an issue with ESD9P5.0ST5G, 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 ESD9P5.0ST5G part is unused and in its original packaging.
Return procedure for ESD9P5.0ST5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESD9P5.0ST5G Tags

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D12V0L1B2LP-7B
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PESD2V0Y1BSFYL
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