STMicroelectronics ESDALC6V1-5P6

Overview

ESDALC6V1-5P6 from STMicroelectronics is a monolithic 5-line unidirectional ESD protection diode array designed for high-speed interface lines including I²C, camera sensor buses, and display interfaces. It delivers 6.1 V breakdown voltage, 12 pF typical capacitance, ±8 kV contact/±15 kV air ESD immunity per IEC 61000-4-2 Level 4, and clamps to 10 V at 1 A pulse current - enabling robust transient suppression without signal integrity degradation in space-constrained mobile and imaging systems.

For engineers reviewing the ESDALC6V1-5P6 datasheet, ESDALC6V1-5P6 pinout, ESDALC6V1-5P6 application, or ESDALC6V1-5P6 equivalent, key selection criteria include low-capacitance line protection (≤15 pF), precise 6.1 V standoff voltage for 3.3 V/5 V rail compatibility, SOT666 footprint constraints (2.5 mm² max), and verified IEC 61000-4-2 Level 4 compliance with sub-14 V clamping at 2.5 A.

Technical Context

This device implements a five-channel unidirectional diode-clamp topology integrated into a single SOT666 package, where each channel connects an I/O line to ground via a low-capacitance PN junction. Its 12 pF typical junction capacitance and 2–3 Ω dynamic resistance ensure minimal signal distortion on high-frequency buses up to 100 MHz.

The ESDALC6V1-5P6 operates across –40 °C to +125 °C and sustains 30 W peak pulse power (8/20 µs) while maintaining <70 nA leakage at 3 V reverse bias - confirming suitability for always-on, low-power sensor and imaging interfaces requiring long-term reliability under repeated ESD stress.

Key Specifications

Pinout & Package

SOT666 is a 6-pin, surface-mount plastic package with exposed pad (no thermal pad), 1.7 mm × 1.7 mm body size, 0.5 mm lead pitch, and 0.6 mm max height. Pin 1 is marked by a dot; leads are gull-wing shaped and lead-free per JEDEC JESD97.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ESD protection applications.

Compared with ESDALC6V1-5W5 and TPD2E001DRYR, the ESDALC6V1-5P6 uniquely balances five-line integration, 12 pF capacitance, and SOT666's 2.5 mm² footprint - making it optimal for space-constrained imaging and mobile interfaces where channel count, size, and signal fidelity are jointly critical.

Availability

ESDALC6V1-5P6 is available at Aetrix Electronics and suitable for mobile camera modules, I²C peripheral protection, and video display link designs requiring stable component supply, consistent ECOPACK® compliance, and guaranteed SOT666 packaging.

Supply support for ESDALC6V1-5P6 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 microcontrollers, power management ICs, sensors, and protection devices for automotive, industrial, and consumer markets.

The ESDALC series targets high-speed digital interface protection, emphasizing low capacitance, precise voltage thresholds, and compact packaging for portable and imaging electronics where ESD robustness must coexist with signal fidelity.

FAQ

What is the maximum operating temperature for ESDALC6V1-5P6?

The ESDALC6V1-5P6 is rated for continuous operation from –40 °C to +125 °C ambient temperature. Its junction temperature must not exceed 125 °C under steady-state or pulsed conditions, and derating applies above 25 °C ambient per Figure 2 in the datasheet. Thermal design must ensure PCB copper area and airflow maintain this limit during repeated ESD events.

Does ESDALC6V1-5P6 support bidirectional signal lines like USB or HDMI?

No - ESDALC6V1-5P6 is a unidirectional diode array with anode-to-I/O and cathode-to-GND configuration. It is not suitable for true bidirectional buses such as USB 2.0 or HDMI, which require symmetric clamping. For those interfaces, ST recommends bidirectional arrays like ESDALC12-2M5 or dedicated TVS solutions with matched forward/reverse characteristics.

How does the 12 pF capacitance impact 100 MHz signal integrity?

At 100 MHz, the 12 pF capacitance introduces ~133 Ω capacitive reactance, resulting in negligible loading on 50 Ω transmission lines. Measured frequency response (Figure 10) shows <0.5 dB insertion loss up to 1 GHz and >20 dB crosstalk isolation (Figure 11), confirming suitability for high-speed parallel video and camera data buses without measurable edge degradation.

Can ESDALC6V1-5P6 replace discrete 0402 TVS diodes in new designs?

Yes - its five-channel integration replaces five discrete 0402 diodes, reducing PCB area by >40%, eliminating placement misalignment risk, and guaranteeing matched capacitance and clamping across all lines. However, discrete diodes offer independent tuning per line; ESDALC6V1-5P6 is preferred when channel matching, size, and assembly yield are prioritized over per-line customization.