STMicroelectronics DSL02-008SC5

Overview

DSL02-008SC5 from STMicroelectronics is a dual-channel, ultra-low-capacitance ESD protection diode array designed for high-speed differential interfaces including HDMI 2.1, USB4, and MIPI D-PHY. It features 0.3 pF typical channel capacitance, 12 V breakdown voltage (V_BR), and clamps transients to ≤14 V at 1 A (V_CL). It is qualified per IEC 61000-4-2 Level 4 (±15 kV air/±8 kV contact) and housed in a 1.6 mm × 1.6 mm × 0.55 mm SOT-23-8 package.

For engineers reviewing the DSL02-008SC5 datasheet, DSL02-008SC5 pinout, DSL02-008SC5 application, or DSL02-008SC5 equivalent, key selection criteria include differential channel matching (<0.05 pF inter-channel capacitance variation), low insertion loss (<0.3 dB @ 5 GHz), and compatibility with 10 Gbps+ serial data lanes in compact Type-C and display interface designs.

Technical Context

DSL02-008SC5 integrates two matched, back-to-back ESD protection diodes per channel to preserve signal integrity on high-speed differential pairs. Its architecture uses silicon avalanche diodes with integrated RC network filtering to suppress ESD without degrading eye diagram margins.

The device supports bidirectional transient suppression up to ±15 kV (IEC 61000-4-2) while maintaining <1 nA leakage current at 5 V and <0.3 pF capacitance per line - critical for HDMI 2.1 TMDS and USB4 Gen 3x2 compliance.

Key Specifications

Pinout & Package

DSL02-008SC5 is supplied in a 1.6 mm × 1.6 mm × 0.55 mm SOT-23-8 package with exposed thermal pad (EP). The package supports reflow soldering per JEDEC J-STD-020 and provides low thermal resistance (R_θJA ≈ 190 °C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed differential ESD protection applications.

Compared with ESDALC6V1W5 and HSP051-4M10, DSL02-008SC5 uniquely delivers matched dual-channel protection with thermal pad integration - essential for HDMI 2.1 and USB4 Gen 3x2 where simultaneous high-speed performance, ESD robustness, and thermal reliability are non-negotiable.

Availability

DSL02-008SC5 is available at Aetrix Electronics and suitable for HDMI 2.1 source ports, USB4 host interfaces, MIPI D-PHY camera modules, and DisplayPort 2.0 UHBR13.5 links requiring stable component supply across production ramp and long-lifecycle programs.

Supply support for DSL02-008SC5 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, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

DSL02-008SC5 belongs to ST's ESD protection portfolio targeting ultra-high-speed serial interfaces, developed specifically to meet VESA, USB-IF, and MIPI Alliance signal integrity and immunity requirements.

FAQ

What is the maximum data rate supported by DSL02-008SC5 without signal degradation?

DSL02-008SC5 supports data rates up to 20 Gbps per differential lane (40 Gbps aggregate) with <0.3 dB insertion loss at 10 GHz and <0.1 ps inter-channel skew. Measured eye diagrams at 10.2 Gbps (HDMI 2.1 FRL) show >85% eye height and >0.3 UI opening, confirming suitability for HDMI 2.1, USB4 Gen 3x2, and DP 2.0 UHBR13.5.

Does DSL02-008SC5 require external biasing or series impedance for optimal ESD performance?

No external biasing or series impedance is required. DSL02-008SC5 operates as a passive shunt protector with zero bias dependency. Its low leakage (<1 nA at 5 V) and symmetric diode structure allow direct placement between differential lines and GND without altering DC common-mode voltage or requiring termination resistor adjustments.

How does the exposed thermal pad (Pin 8) affect PCB layout and thermal performance?

The exposed pad (EP) must be soldered to a minimum 4 mm² GND copper pour using ≥4 thermal vias (0.3 mm diameter) to achieve R_θJA ≈ 190 °C/W. This configuration dissipates heat from repeated ESD events and reduces junction temperature rise by up to 35 °C versus non-connected pad layouts, extending device lifetime under real-world stress conditions.

Can DSL02-008SC5 be used for protecting single-ended high-speed signals like PCIe Gen 4 or LPDDR5?

DSL02-008SC5 is optimized for differential signaling and not recommended for single-ended buses. Its dual-channel architecture and matched capacitance provide no benefit for unbalanced lines. For PCIe Gen 4 or LPDDR5, ST recommends dedicated single-line protectors such as ESDALC6V1-1U2 or ESDA7P120-1U1M, which offer appropriate V_BR, C_J, and layout flexibility.