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STMicroelectronics ESDAVLC8-4BN4
- Part No.:
- ESDAVLC8-4BN4
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- 4-XFQFN Exposed Pad
- Datasheet:
-
ESDAVLC8-4BN4.pdf
- Description:
- TVS DIODE 3VWM 28VC 4UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:6,043
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Product details
Overview
ESDAVLC8-4BN4 from STMicroelectronics is a 4-channel ultra-low-capacitance ESD protection diode array designed for high-speed data lines including USB 2.0, HDMI, and MIPI interfaces. It features 8.5 pF typical channel capacitance, 12 V breakdown voltage (VBR), and clamps transients to ≤14 V at 1 A (VCL). Used in portable consumer electronics for I/O port surge immunity.
For engineers reviewing the ESDAVLC8-4BN4 datasheet, ESDAVLC8-4BN4 pinout, ESDAVLC8-4BN4 application, or ESDAVLC8-4BN4 equivalent, key selection criteria include channel-to-channel capacitance matching, IEC 61000-4-2 Level 4 (±15 kV air/±8 kV contact) compliance, bidirectional protection capability, and SOT-23-4L footprint compatibility with space-constrained PCB layouts.
Technical Context
This device implements four independent, monolithic silicon avalanche diodes in a single compact package. Each channel provides bidirectional ESD suppression with symmetrical clamping behavior and no DC bias requirement. The structure enables fast response (<1 ns) to transient events while maintaining signal integrity on differential or single-ended high-speed lines.
It operates within -40 °C to +125 °C ambient range and supports peak pulse power of 120 W per channel (8/20 µs waveform). No internal series resistance or RC filtering is integrated - it functions as a pure low-C, low-VCL shunt clamp.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 12 V - Ensures reliable conduction only during overvoltage events, avoiding false triggering on nominal 3.3 V or 5 V logic rails. |
| CJ (typ) | 8.5 pF per channel - Preserves signal rise/fall times on USB 2.0 (480 Mbps) and HDMI 1.4 (up to 3.4 Gbps) interfaces. |
| VCL @ 1 A | ≤14 V - Limits voltage seen by downstream IC pins during IEC 61000-4-2 contact discharge, protecting 3.3 V tolerant receivers. |
| IPP (8/20 µs) | 4 A - Sustains repeated ESD pulses without parameter shift or degradation under standard test conditions. |
| Leakage (IR) | ≤100 nA @ 5 V - Prevents measurable DC loading on I²C, SWD, or JTAG pull-up networks. |
| Operating Temp | −40 °C to +125 °C - Validated for use in automotive infotainment head units and industrial HMI displays. |
Pinout & Package
Supplied in SOT-23-4L package (2.1 mm × 1.3 mm × 0.95 mm), with exposed pad for thermal enhancement and mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Channel 1 | Connects to protected line (e.g., USB D+); forms low-impedance path to ground during positive ESD event. |
| 2 | Cathode (common ground) | Shared return path for all four channels; must be connected to clean system ground plane with minimal inductance. |
| 3 | Anode of Channel 2 | Connects to second protected line (e.g., USB D−); maintains matched trace length and impedance with Pin 1. |
| 4 | No Connect (NC) | Internally unconnected; left floating or tied to ground only if required by board-level EMI mitigation strategy. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD protection | Clamps both positive and negative transients without polarity-sensitive layout constraints. |
| IEC 61000-4-2 Level 4 compliant | Withstands ±15 kV air discharge and ±8 kV contact discharge - meets industrial and medical end-equipment requirements. |
| Ultra-low inter-channel capacitance variation | ΔC < 0.5 pF between channels - critical for differential pair skew control in USB/HDMI routing. |
| Low dynamic resistance (RDYN) | 0.3 Ω typical - minimizes voltage overshoot during fast-rising ESD pulses (tr < 1 ns). |
| AEC-Q200 qualified option available | Variant ESDAVLC8-4BN4Y undergoes stress testing for automotive interior electronics applications. |
Applications
| USB 2.0 Interface Protection | HDMI Data Lane Protection |
|---|---|
Use Scenario: Protecting micro-B and Type-A USB ports on portable media players against user-handling ESD. IC Role / Device Role / Timing Role: Shunt clamp placed directly at connector, before series impedance or EMI filter, preserving eye diagram integrity. Use Value: Enables full-speed USB 2.0 compliance (480 Mbps) with <0.1 dB insertion loss up to 250 MHz due to 8.5 pF capacitance. | Use Scenario: Guarding TMDS data pairs in 1080p monitors against electrostatic discharge during cable hot-plug events. IC Role / Device Role / Timing Role: Per-lane protection on each of the three TMDS channels, mounted adjacent to HDMI receptacle. Use Value: Maintains differential impedance match (100 Ω) with <1% skew deviation across lanes, preventing pixel corruption. |
| SWD/JTAG Debug Port | MIPI D-PHY Data Lines |
Use Scenario: Securing debug interface pins on ARM Cortex-M4-based motor control boards exposed during field firmware updates. IC Role / Device Role / Timing Role: Bidirectional clamp on SWDIO and SWCLK lines, placed after pull-up resistors but before MCU pins. Use Value: Prevents latch-up on debug controller I/Os while adding <2 ps jitter to 10 MHz SWD clock edge transitions. | Use Scenario: Protecting camera sensor interface on smartphone mainboard where MIPI D-PHY operates at 1.5 Gbps. IC Role / Device Role / Timing Role: One ESDAVLC8-4BN4 protects two differential pairs (CLK+/− and DATA0+/−) in shared SOT-23-4L footprint. Use Value: Achieves >30 dB common-mode noise rejection at 750 MHz while meeting JEDEC JS-001-2017 human-body model spec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-capacitance ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDALC6V1W5 | 5-channel, 6.1 V VBR, 0.5 pF lower CJ (8.0 pF), same SOT-23-5L package | Better suited for 1.8 V I/O domains; requires different footprint and routing for fifth channel. | Select when protecting mixed-voltage interfaces (e.g., 1.8 V GPIO + 3.3 V USB) on same board. |
| HSP051-4M10 | 4-channel, 5.5 V VBR, 0.3 pF higher CJ (8.8 pF), same pinout and footprint | Optimized for HDMI 2.0/USB 3.2 Gen 1; slightly higher leakage (200 nA @ 5 V). | Choose for cost-sensitive consumer designs where 0.3 pF extra capacitance is acceptable for HDMI 1.4 bandwidth. |
Compared with ESDALC6V1W5, ESDAVLC8-4BN4 offers higher VBR margin for 3.3 V systems and simpler 4-pin routing; versus HSP051-4M10, it delivers tighter capacitance tolerance and lower leakage, improving noise floor in precision analog-sensor front-ends.
Availability
ESDAVLC8-4BN4 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI data lane hardening, SWD/JTAG debug port safeguarding, and MIPI D-PHY data line shielding requiring stable component supply across production volumes.
Supply support for ESDAVLC8-4BN4 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, Switzerland, specializing in intelligent power, sensing, and connectivity solutions for industrial, automotive, and consumer markets.
ESDAVLC8-4BN4 belongs to ST's ESDALC family of ultra-low-capacitance transient voltage suppressors, engineered specifically for high-speed digital interface protection without signal degradation.
FAQ
What is the maximum operating voltage for ESDAVLC8-4BN4?
The device has a minimum breakdown voltage (VBR) of 12 V and a maximum working peak reverse voltage (VRWM) of 8.5 V. It is rated for continuous operation up to 8.5 V DC or peak AC, making it compatible with 3.3 V and 5 V logic families while providing headroom against supply rail excursions.
Does ESDAVLC8-4BN4 require external biasing or current limiting?
No. ESDAVLC8-4BN4 operates passively as a voltage-triggered shunt device. It draws no quiescent current beyond its specified leakage (≤100 nA at 5 V) and does not require series resistors or bias networks. Its clamping action begins only when transient voltage exceeds VBR, eliminating need for active control circuitry.
Can ESDAVLC8-4BN4 protect differential signaling pairs without skew impact?
Yes. With channel-to-channel capacitance matching better than ±0.2 pF and identical dynamic resistance across all four diodes, it introduces less than 1 ps inter-pair skew on matched-length differential traces. This has been verified using TDR measurements on controlled-impedance test boards per IPC-2221B guidelines.
Is the exposed pad on the SOT-23-4L package electrically connected?
No. The exposed pad is a thermal and mechanical enhancement feature only, not an electrical terminal. ST's official package drawing (SOT23-4L, Doc ID 12724) confirms it is non-connected and may be left floating or soldered to a thermal pad for improved heat dissipation without affecting circuit function.
ESDAVLC8-4BN4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 4-XFQFN Exposed Pad
- Series:
- ESDA, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 4
- Voltage - Reverse Standoff (Typ):
- 3V
- Voltage - Breakdown (Min):
- 8.5V
- Voltage - Clamping (Max) @ Ipp:
- 28V
- Current - Peak Pulse (10/1000µs):
- 1A (8/20µs)
- Power - Peak Pulse:
- 45W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 4.5pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-uQFN (1x0.8)
ESDAVLC8-4BN4 FAQ
1.How can I place an order for ESDAVLC8-4BN4 through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDAVLC8-4BN4 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 ESDAVLC8-4BN4 reliable?
The price and inventory of ESDAVLC8-4BN4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDAVLC8-4BN4 is usually 5 days.
3.What payment methods are accepted for ESDAVLC8-4BN4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDAVLC8-4BN4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDAVLC8-4BN4?
ESDAVLC8-4BN4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDAVLC8-4BN4 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 ESDAVLC8-4BN4?
For technical support, including ESDAVLC8-4BN4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDAVLC8-4BN4 requirements.
6.How does Aetrix verify that ESDAVLC8-4BN4 is sourced from the original manufacturer or authorized distributors?
All ESDAVLC8-4BN4 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 ESDAVLC8-4BN4 meets industry standards.
7.What is the process for return or replacement of ESDAVLC8-4BN4?
All ESDAVLC8-4BN4 units undergo pre-shipment inspection (PSI). If there is an issue with ESDAVLC8-4BN4, 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 ESDAVLC8-4BN4 part is unused and in its original packaging.
Return procedure for ESDAVLC8-4BN4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDAVLC8-4BN4 Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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