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STMicroelectronics ESDA6V1L
- Part No.:
- ESDA6V1L
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ESDA6V1L.pdf
- Description:
- TVS DIODE 5.25VWM SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:58,569
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Product details
Overview
ESDA6V1L from STMicroelectronics is a unidirectional dual Transil™ ESD protection diode array designed to safeguard one or two signal lines against electrostatic discharge transients. It features 6.1–7.2 V breakdown voltage, ≤20 µA leakage at VRM, 300 W peak pulse power (8/20 µs), 140 pF line capacitance, and meets IEC 61000-4-2 level 4 (±30 kV air/contact discharge). It is used in high-density USB, HDMI, and audio interface circuits where low capacitance and board space are critical.
For engineers reviewing the ESDA6V1L datasheet, ESDA6V1L pinout, ESDA6V1L application, or ESDA6V1L equivalent, key selection criteria include clamping voltage (≤12 V at 18 A), dynamic impedance (5.25 Ω), thermal stability (−40 to +150 °C junction), and SOT23-3L footprint compatibility with automated PCB assembly processes.
Technical Context
The ESDA6V1L integrates two identical unidirectional avalanche diodes in a single SOT23-3L package, configured as a common-cathode dual array. Its operation relies on controlled avalanche breakdown above 6.1 V, with clamping initiated within nanoseconds of ESD event onset.
It delivers 300 W peak pulse power under 8/20 µs waveform while maintaining low dynamic impedance (5.25 Ω typ.) and stable temperature coefficient (αT = 6 × 10⁻⁴/°C), enabling predictable clamping behavior across industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 6.1–7.2 V - defines minimum trigger threshold for ESD clamping; ensures protection starts before downstream IC damage. |
| Clamping Voltage (VCL) | ≤12 V at 18 A (8/20 µs) - maximum voltage seen by protected line during worst-case ESD strike. |
| Line Capacitance (Cline) | 140 pF at 0 V - enables use in high-speed interfaces (e.g., USB 2.0, HDMI DDC) without signal integrity degradation. |
| Leakage Current (IR) | <20 µA at VRM - minimizes DC loading on sensitive analog or low-power signal paths. |
| Peak Pulse Power | 300 W (8/20 µs) - sustains energy absorption per IEC 61000-4-2 level 4 compliance. |
| Dynamic Impedance (Rd) | 5.25 Ω typ. - determines voltage rise slope during transient; lower value improves clamping efficiency. |
| Operating Temperature | −40 to +150 °C - supports deployment in automotive cabin modules and industrial control enclosures. |
Pinout & Package
SOT23-3L surface-mount package: 1.9 mm × 1.3 mm × 1.0 mm body, lead-free, RoHS-compliant, UL 94 V0 epoxy. Designed for reflow soldering with recommended footprint per ST DocID7058 Rev 5 Figure 8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Input terminal for first protected line; connects to I/O trace prior to IC input. |
| Pin 2 | Cathode (common) | Shared cathode node tied to system ground plane; provides low-inductance return path for ESD current. |
| Pin 3 | Anode 2 | Input terminal for second protected line; enables dual-line protection in single footprint. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional dual-diode architecture | Enables independent protection of two signal lines with shared ground reference and minimal parasitic coupling. |
| 140 pF line capacitance | Preserves signal edge rate in 480 Mbps USB 2.0 data lanes without measurable jitter or attenuation. |
| 30 kV ESD immunity (IEC 61000-4-2) | Exceeds level 4 requirements for both contact and air discharge, eliminating need for secondary protection layers. |
| Low dynamic impedance (5.25 Ω) | Reduces clamping overshoot by limiting IR drop during 18 A transient, protecting 1.8 V/3.3 V logic inputs. |
| SOT23-3L footprint | Matches standard pick-and-place tooling and reflow profiles; compatible with 0.5 mm pitch PCB routing. |
Applications
| USB 2.0 Interface Protection | HDMI DDC Channel Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of embedded USB host ports against user-handling ESD events. IC Role / Device Role: Primary ESD shunt clamp placed directly at connector entry point. Use Value: 140 pF capacitance avoids signal rise-time degradation; 30 kV rating prevents latch-up in USB transceivers. | Use Scenario: Safeguarding HDMI Display Data Channel (DDC) SDA/SCL lines from hot-plug ESD. IC Role / Device Role: Low-capacitance bidirectional suppressor (pins 1 & 2 only) preserving I²C timing margins. Use Value: Enables direct integration into 5 V DDC bus without pull-up resistor derating or speed loss. |
| Automotive Infotainment Audio Lines | Industrial Sensor Signal Conditioning |
Use Scenario: Shielding analog audio inputs (e.g., AUX-in, microphone bias) in vehicle head units. IC Role / Device Role: Unidirectional clamp referenced to chassis ground, suppressing ±30 kV transients without DC offset. Use Value: <20 µA leakage prevents microphone bias drift; −40 to +150 °C rating matches under-dash thermal environment. | Use Scenario: Protecting 4–20 mA current-loop sensor inputs in PLC analog input modules. IC Role / Device Role: Standoff voltage (6.1 V min.) isolates clamp from normal 24 V loop operation while triggering on fast ESD spikes. Use Value: Prevents false trips in precision ADC front-ends; 300 W pulse handling avoids failure during field maintenance events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDA5V3L | Lower VBR (5.3–5.9 V); higher Cline (220 pF); same SOT23-3L package. | Better suited for 3.3 V I/O rails; less ideal for 5 V systems due to premature conduction. | Select when protecting low-voltage logic with tighter clamping margin and acceptable capacitance trade-off. |
| ESDA14V2L | Higher VBR (14.2–15.8 V); lower Cline (90 pF); same package. | Required for 12 V analog sensor lines or CAN FD stubs where 6 V clamping would interfere with normal operation. | Choose for higher-voltage interfaces needing reduced capacitance and elevated standoff without sacrificing ESD robustness. |
Compared with ESDA5V3L and ESDA14V2L, the ESDA6V1L offers optimal balance for 5 V digital interfaces-its 6.1 V VBR avoids false triggering on noise while delivering lower clamping than ESDA14V2L and lower capacitance than ESDA5V3L.
Availability
ESDA6V1L is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI DDC channel hardening, and automotive infotainment audio line safeguarding requiring stable component supply and full production traceability.
Supply support for ESDA6V1L 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, power devices, sensors, and protection ICs for industrial, automotive, and consumer markets.
The ESDAL series targets compact, high-reliability ESD suppression in space-constrained digital interfaces, emphasizing low capacitance, precise VBR control, and IEC 61000-4-2 compliance without external components.
FAQ
Can ESDA6V1L be used for bidirectional protection?
Yes-by connecting only pins 1 and 2 (anode 1 and common cathode), it functions as a bidirectional suppressor for single-ended lines like I²C or RS-232. Pin 3 remains unconnected. This configuration leverages symmetrical avalanche characteristics but reduces effective ESD rating to ~20 kV due to absence of second diode path.
What is the maximum recommended trace length between ESDA6V1L and protected IC?
ST recommends ≤5 mm from device pad to IC pin for optimal protection. Longer traces increase inductance, raising clamping voltage during fast ESD events. For USB 2.0, place ESDA6V1L within 3 mm of the connector and route protected lines directly to the transceiver with no vias or stubs.
Does ESDA6V1L require external decoupling capacitors?
No-ESDA6V1L operates as a standalone shunt protector and does not require external capacitors. Its 140 pF line capacitance is self-contained and optimized for signal integrity. Adding external capacitance degrades high-frequency response and may cause resonance with PCB trace inductance.
How does temperature affect ESDA6V1L's breakdown voltage?
VBR shifts with junction temperature at αT = 6 × 10⁻⁴/°C. At 125 °C, VBR increases by ~6% versus 25 °C (e.g., 6.1 V → ~6.47 V). This positive TC ensures safe margin expansion at elevated temperatures, preventing premature conduction in hot environments.
ESDA6V1L Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- ESDA, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.25V
- Voltage - Breakdown (Min):
- 6.1V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ESDA6V1L FAQ
1.How can I place an order for ESDA6V1L through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDA6V1L 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 ESDA6V1L reliable?
The price and inventory of ESDA6V1L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDA6V1L is usually 5 days.
3.What payment methods are accepted for ESDA6V1L?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDA6V1L transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDA6V1L?
ESDA6V1L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDA6V1L 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 ESDA6V1L?
For technical support, including ESDA6V1L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDA6V1L requirements.
6.How does Aetrix verify that ESDA6V1L is sourced from the original manufacturer or authorized distributors?
All ESDA6V1L 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 ESDA6V1L meets industry standards.
7.What is the process for return or replacement of ESDA6V1L?
All ESDA6V1L units undergo pre-shipment inspection (PSI). If there is an issue with ESDA6V1L, 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 ESDA6V1L part is unused and in its original packaging.
Return procedure for ESDA6V1L:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDA6V1L Tags
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