USBLC6-2SC6 STMicroelectronics USBLC6-2SC6 Transient Voltage Suppressors TVS Diodes

STMicroelectronics USBLC6-2SC6 TVS Diodes Overview

ESD (electrostatic discharge) is a critical concern in modern high-speed data interfaces such as USB 2.0, Ethernet, and video lines. Even a minor transient voltage event can damage sensitive ICs, leading to system failure. The STMicroelectronics USBLC6-2SC6 is a dedicated monolithic transient voltage suppressor (TVS) diode designed to provide robust ESD protection while maintaining signal integrity in high-speed applications. With an ultra-low capacitance (3.5 pF max.) and fast response time, it ensures minimal distortion of data signals, making it a preferred choice for USB 2.0 (480 Mbps), Ethernet (10/100 Mbps), and portable electronics.

Key Features & Technical Advantages

1. Industry-Leading ESD Protection (IEC 61000-4-2 Level 4 Compliance)

• 15kV (air discharge) & 8kV (contact discharge)?protection
• Ensures?high immunity against ESD events?at the system level
• Robust VBUS protection, preventing damage to power lines

2. Ultra-Low Capacitance for High-Speed Signal Integrity

• 3.5 pF max. line-to-ground capacitance?minimizes signal distortion
• 0.015 pF matching tolerance?between D+/D- lines for?balanced USB 2.0 high-speed signals
• Prevents data corruption in?480 Mbps USB and 100 Mbps Ethernet applications

3. Space-Efficient & Reliable Design

• SOT-666 (2.9 mm2 footprint) & SOT23-6L (9 mm2) package options
• Monolithic integration?ensures?high reliability?with no parasitic effects
• Low leakage current (150 nA max.), ideal for?battery-powered devices

4. Wide Applicability in High-Speed Interfaces

• USB 2.0/1.1 (Full & Low Speed)
• Ethernet (10/100 Mbps)
• SIM card protection
• Video line protection (HDMI, DisplayPort, etc.)
• Portable electronics (smartphones, tablets, laptops)

How the USBLC6-2SC6 Enhances System Performance

1. Optimizing Signal Fidelity in High-Speed Data Transmission

High-speed USB and Ethernet require minimal capacitance to avoid signal attenuation and delay. The USBLC6-2SC6??s 3.5 pF capacitance ensures signal integrity, preventing data errors in 480 Mbps USB 2.0 and 100 Mbps Ethernet applications.

2. Preventing System Downtime with Superior ESD Protection

ESD strikes are inevitable in real-world environments. Traditional protection devices can fail under repeated high-voltage transients. The USBLC6-2SC6 delivers IEC 61000-4-2 Level 4 compliance, ensuring that USB ports remain functional even after 15kV air discharge and 8kV contact discharge events.

3. Prolonging Battery Life in Portable Devices

With a leakage current below 150 nA, the USBLC6-2SC6 minimizes power loss in mobile phones, wearables, and IoT devices, helping extend battery runtime.

4. Simplifying PCB Layout with Compact Packaging

The SOT-666 (2.9 mm2) and SOT23-6L (9 mm2) packages allow engineers to integrate ESD protection without consuming excessive board space??ideal for space-constrained designs like smartphones and ultra-thin laptops.

Applications

1. High-Speed USB 2.0 Port Protection

• Laptops, tablets, docking stations
• USB hubs & peripherals (flash drives, external HDDs)

2. Ethernet Port Protection in Networking Devices

• Routers, switches, IP cameras
• Industrial Ethernet controllers

3. SIM Card & Memory Card Interfaces

• Smartphones & IoT modules
• Mobile payment terminals

4. Video & DisplayPort Protection

• HDMI/USB-C interfaces
• Digital signage & kiosks