onsemi ESD11A5.0DT5G
- Part No.:
- ESD11A5.0DT5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SOT-1123
- Datasheet:
-
ESD11A5.0DT5G.pdf
- Description:
- TVS DIODE 5VWM 9.5VC SOT1123
- Quantity:
- Payment:

- Shipping:

Inventory:6,953
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Product details
Overview
ESD11A5.0DT5G from onsemi is a unidirectional ESD protection diode in SOT-1123 package, designed to clamp transient voltages to 9.5 V at 1 A peak pulse current, with 5.0 V working reverse voltage and 20 pF capacitance (pin1–pin3/pin2–pin3), protecting high-speed data lines in portable electronics.
For engineers reviewing the ESD11A5.0DT5G datasheet, pinout, applications, or equivalent options, key selection criteria include IEC 61000-4-2 Level 4 compliance (±15 kV contact), sub-1 ns response time, low leakage (<0.1 µA @ 5.0 V), and ultra-compact 1.0 mm × 0.6 mm footprint for space-constrained USB, audio, and display interfaces.
Technical Context
The ESD11A5.0DT5G integrates two independent unidirectional protection paths sharing a common anode (Pin 3), enabling dual-line protection without cross-coupling. Its clamping behavior is characterized by 9.5 V max VC at IPP = 1 A per IEC 61000-4-2 waveform, with breakdown voltage ≥6.2 V at 1 mA test current.
It operates across −55°C to +125°C junction temperature, meets AEC-Q101 qualification for automotive infotainment interfaces, and uses 100% matte tin lead finish compatible with Pb-free reflow up to 260°C (MSL 1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Reverse Voltage (VRWM) | 5.0 V - Maximum continuous DC voltage applied before significant leakage begins; sets upper limit for protected signal rail. |
| Clamping Voltage (VC) | 9.5 V @ IPP = 1 A - Peak voltage seen by downstream IC during IEC 61000-4-2 8 kV contact discharge; ensures safe margin below typical 12 V IC abs max ratings. |
| Capacitance (C) | 20 pF @ 0 V, 1 MHz - Measured between each cathode (Pins 1/2) and common anode (Pin 3); low enough for USB 2.0 (480 Mbps) and I²S audio integrity. |
| ESD Rating | ±15 kV contact per IEC 61000-4-2 Level 4 - Validated system-level immunity for handheld device touch surfaces and exposed ports. |
| Response Time | <1 ns - Enables effective suppression of fast-rising ESD transients before sensitive logic or analog circuitry is stressed. |
| Leakage Current (IR) | 0.1 µA @ VRWM - Minimal DC loading on high-impedance sensor or reference lines; preserves battery life in always-on circuits. |
Pinout & Package
SOT-1123 (Case 524AA) is a 3-pin, ultra-miniature surface-mount package measuring 1.0 mm × 0.6 mm × 0.37 mm, optimized for board area savings in mobile and wearables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Protected line 1 input; connects to signal trace requiring ESD clamping to common anode (Pin 3). |
| Pin 2 | Cathode | Protected line 2 input; independent clamping path to same anode (Pin 3), enabling dual-channel protection without shared cathodes. |
| Pin 3 | Anode | Common return path to ground or low-impedance reference; must be routed with minimal inductance for effective clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 1.0 mm × 0.6 mm body - Reduces PCB real estate by >50% vs. SOT-23, critical for thin smartphones and TWS earbuds. |
| Low clamping voltage | 9.5 V @ 1 A - Limits stress on 5 V-tolerant interface ICs (e.g., USB PHY, HDMI redriver) during worst-case ESD events. |
| Uni-directional dual-path architecture | Two isolated cathodes sharing one anode - Enables independent protection of differential pairs (e.g., USB D+/D−) without inter-line coupling. |
| AEC-Q101 qualified | Validated for automotive infotainment displays and telematics modules - Supports extended temperature operation and reliability requirements. |
Applications
| USB 2.0 Interface Protection | Smartphone Display Data Lines |
|---|---|
Use Scenario: Protecting D+ and D− lines of a smartphone USB port against user-hand ESD during cable insertion. IC Role / Device Role: Dual-cathode ESD clamp routing transients from both data lines to common ground plane via Pin 3. Use Value: 20 pF capacitance avoids signal integrity degradation at 480 Mbps; 9.5 V clamping prevents PHY latch-up or damage. | Use Scenario: Shielding MIPI DSI clock and data lanes in OLED display modules from ESD induced by stylus or finger proximity. IC Role / Device Role: Unidirectional clamping on each lane (Pin 1 → Pin 3, Pin 2 → Pin 3) maintains DC bias while suppressing ±15 kV transients. Use Value: Sub-1 ns response ensures clamping activation before display driver ICs experience overvoltage beyond 12 V abs max rating. |
| Wireless Earbud Audio Path | Automotive Infotainment Touchscreen |
Use Scenario: Safeguarding analog audio inputs (MIC+, MIC−) in true wireless stereo earbuds exposed to pocket friction ESD. IC Role / Device Role: Low-leakage (<0.1 µA) dual-path diode preserving DC bias of electret microphone amplifier inputs. Use Value: 5.0 V VRWM matches typical audio codec supply rails; 1.0 mm × 0.6 mm size fits within 2.5 mm wide earbud stem PCB. | Use Scenario: Protecting I²C bus lines (SDA/SCL) connecting touchscreen controller to main SoC in automotive-grade head units. IC Role / Device Role: AEC-Q101 qualified dual-clamp ensuring robustness under −40°C to +105°C ambient and repeated ESD exposure. Use Value: 9.5 V clamping provides safety margin above 5 V I²C logic levels; MSL 1 rating supports lead-free reflow without popcorn cracking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z5.0T5G | Same SOT-523 package (1.2 mm × 0.8 mm), 5.0 V VRWM, 12.5 V VC @ 1 A, 30 pF capacitance. | Higher capacitance limits use to lower-speed interfaces (e.g., I²C, UART); larger footprint reduces density in ultra-thin designs. | Select when board layout allows slightly larger package and higher clamping voltage is acceptable for non-high-speed lines. |
| TPD2E001DRYR | 2-channel unidirectional, 5.0 V VRWM, 12 V VC @ 1 A, 12 pF capacitance, SOT-563 (1.6 mm × 1.6 mm) package. | Lower capacitance benefits USB 3.0 or MIPI D-PHY, but larger size and higher cost reduce suitability for space-critical wearables. | Prefer for high-speed differential interfaces where <15 pF is mandatory, accepting trade-off in PCB area and unit cost. |
Compared with ESD11A5.0DT5G, ESD5Z5.0T5G offers identical voltage rating but trades higher clamping and capacitance for broader distributor availability, while TPD2E001DRYR delivers lower capacitance at the expense of footprint and cost-making ESD11A5.0DT5G optimal for compact, cost-sensitive 5 V high-speed data protection.
Availability
ESD11A5.0DT5G is available at Aetrix Electronics and suitable for USB 2.0 interface protection, smartphone display data lines, and wireless earbud audio path applications requiring stable component supply and consistent Pb-free compliance.
Supply support for ESD11A5.0DT5G 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 focused on energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The ESD11A Series targets ultra-compact, high-reliability ESD protection for portable electronics, emphasizing minimal capacitance, fast response, and AEC-Q101 qualification for automotive infotainment interfaces.
FAQ
What is the maximum clamping voltage of the ESD11A5.0DT5G during an IEC 61000-4-2 ESD event?
The ESD11A5.0DT5G has a maximum clamping voltage (VC) of 9.5 V when subjected to a 1 A peak pulse current per the IEC 61000-4-2 waveform. This value is measured across the device terminals (cathode-to-anode) and ensures downstream ICs see limited overvoltage during ±15 kV contact discharge events. The ESD11A5.0DT5G's clamping performance is validated using oscilloscope waveforms per Application Note AND8307/D.
How is the pin configuration of the ESD11A5.0DT5G arranged, and what is its functional significance?
The ESD11A5.0DT5G uses a 3-pin SOT-1123 package with Pin 1 and Pin 2 as independent cathodes and Pin 3 as the common anode. This dual-cathode, single-anode structure enables simultaneous protection of two signal lines (e.g., USB D+/D−) referenced to the same ground plane. The ESD11A5.0DT5G's pinout minimizes parasitic inductance in the return path, supporting sub-1 ns response and effective clamping at high frequencies.
Does the ESD11A5.0DT5G meet automotive qualification standards?
Yes, the ESD11A5.0DT5G is AEC-Q101 qualified and PPAP capable, confirming its suitability for automotive infotainment systems including display modules and touchscreen controllers. It operates across −55°C to +125°C junction temperature and withstands Pb-free reflow up to 260°C (MSL 1). The ESD11A5.0DT5G's qualification covers mechanical robustness, thermal cycling, and ESD immunity per automotive reliability requirements.
What is the typical capacitance of the ESD11A5.0DT5G, and how does it impact high-speed signal integrity?
The ESD11A5.0DT5G exhibits 20 pF capacitance between each cathode (Pin 1 or Pin 2) and the common anode (Pin 3) at 0 V bias and 1 MHz. This low value preserves signal integrity on 480 Mbps USB 2.0 data lines and MIPI DSI clock channels, avoiding excessive rise-time degradation or reflection-induced jitter. The ESD11A5.0DT5G's capacitance is specified per unidirectional measurement and confirmed in Table 3 of its official datasheet.
Is the ESD11A5.0DT5G RoHS-compliant and Pb-free?
Yes, the ESD11A5.0DT5G is a Pb-free device with 100% matte tin lead finish, fully compliant with RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1 (MSL 1). Its packaging uses void-free, UL 94 V-0 rated thermosetting epoxy, and the "G" suffix in the part number explicitly denotes Pb-free construction. All ESD11A5.0DT5G units supplied by Aetrix Electronics carry full material declarations and RoHS certification.
ESD11A5.0DT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SOT-1123
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.2V
- Voltage - Clamping (Max) @ Ipp:
- 9.5V
- Current - Peak Pulse (10/1000µs):
- 1A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 20pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-1123
ESD11A5.0DT5G FAQ
1.How can I place an order for ESD11A5.0DT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD11A5.0DT5G 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 ESD11A5.0DT5G reliable?
The price and inventory of ESD11A5.0DT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD11A5.0DT5G is usually 5 days.
3.What payment methods are accepted for ESD11A5.0DT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD11A5.0DT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD11A5.0DT5G?
ESD11A5.0DT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD11A5.0DT5G 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 ESD11A5.0DT5G?
For technical support, including ESD11A5.0DT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD11A5.0DT5G requirements.
6.How does Aetrix verify that ESD11A5.0DT5G is sourced from the original manufacturer or authorized distributors?
All ESD11A5.0DT5G 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 ESD11A5.0DT5G meets industry standards.
7.What is the process for return or replacement of ESD11A5.0DT5G?
All ESD11A5.0DT5G units undergo pre-shipment inspection (PSI). If there is an issue with ESD11A5.0DT5G, 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 ESD11A5.0DT5G part is unused and in its original packaging.
Return procedure for ESD11A5.0DT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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