STMicroelectronics ESDAVLC8-1BT2

Overview

ESDAVLC8-1BT2 from STMicroelectronics is a bidirectional single-line transient voltage suppressor (TVS) diode designed for ESD protection of high-speed data lines. It delivers 8.5 V minimum breakdown voltage, 4.5 pF capacitance at 0 V, <50 nA reverse leakage at 3 V, 17 kV IEC 61000-4-2 contact/air discharge immunity, and 30 W peak pulse power - enabling robust protection in space-constrained USB 2.0, HDMI, and audio interface applications.

For engineers reviewing the ESDAVLC8-1BT2 datasheet, ESDAVLC8-1BT2 pinout, ESDAVLC8-1BT2 application, or ESDAVLC8-1BT2 equivalent, key selection criteria include low-capacitance signal integrity preservation, SOD882T package footprint compatibility, bidirectional clamping behavior, and compliance with IEC 61000-4-2 Level 4 ESD requirements in portable electronics designs.

Technical Context

This TVS diode uses monolithic silicon avalanche structure to provide symmetrical bidirectional clamping between two terminals, with fast response (<1 ns) to ESD transients. Its low 4.5 pF line capacitance minimizes signal distortion on high-frequency interfaces up to 500 MHz, while maintaining sub-2 Ω dynamic resistance during 1.3 A peak pulse events.

The device operates across –55 °C to +150 °C junction temperature range and achieves 17 kV ESD immunity per IEC 61000-4-2 (both contact and air discharge), exceeding Level 4 requirements. Its SOD882T thin-profile package supports automated placement on fine-pitch PCBs with ≤0.6 mm² board area consumption.

Key Specifications

Pinout & Package

ESDAVLC8-1BT2 is housed in the ultra-compact SOD882T surface-mount package (0.55 × 0.95 mm, 0.3 mm height), optimized for high-density PCB layouts and reflow-compatible assembly. The package features two terminals with no polarity marking - operation is fully bidirectional.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bidirectional low-capacitance TVS applications.

Compared with ESDAVLC8-1BT2, ESD9B5.0ST5G trades higher capacitance for earlier clamping, while TPD2E001DRYR provides lower capacitance but only in dual-line configuration - making ESDAVLC8-1BT2 optimal for single-line, high-speed, space-constrained deployments requiring balanced V_BR and C_LINE.

Availability

ESDAVLC8-1BT2 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI DDC line hardening, and smartphone audio jack ESD mitigation requiring stable component supply and long-term production support.

Supply support for ESDAVLC8-1BT2 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, delivering automotive, industrial, and consumer ICs with emphasis on power efficiency, reliability, and environmental compliance.

ESDAVLC8-1BT2 belongs to ST's Transil™ TVS portfolio, engineered specifically for high-speed digital interface protection where minimal capacitance, precise breakdown control, and compact packaging are critical design constraints.

FAQ

What is the maximum operating temperature for ESDAVLC8-1BT2?

The ESDAVLC8-1BT2 has a specified junction temperature range of –55 °C to +150 °C, validated per MIL STD 883G Class 3 HBM testing. This allows deployment in under-hood automotive modules, industrial motor drives, and high-power portable devices where thermal management is constrained.

Does ESDAVLC8-1BT2 require a ground connection?

No - ESDAVLC8-1BT2 is a two-terminal bidirectional device with no ground pin. It functions as a shunt protector between the protected line and return path (e.g., signal pair or local ground plane), eliminating need for dedicated ground routing in differential or floating systems.

How does its 4.5 pF capacitance impact USB 2.0 signal integrity?

At 480 Mbps, the 4.5 pF capacitance introduces <0.5 dB insertion loss below 250 MHz and maintains >15 dB return loss across the full USB 2.0 bandwidth - verified via S21 attenuation measurements in the datasheet - ensuring compliance with USB-IF eye diagram masks without equalization.

Can ESDAVLC8-1BT2 replace ESDAVLC8-1BM2 in existing designs?

Yes - both share identical electrical characteristics and pinout, differing only in package thickness (SOD882T vs. SOD882). The SOD882T's reduced height (0.3 mm vs. 0.47 mm typ.) eases mechanical integration in ultra-thin assemblies, with identical reflow profile and stencil design requirements.