STMicroelectronics ESDA6V1SC6

Overview

ESDA6V1SC6 from STMicroelectronics is a quad unidirectional Transil™ ESD protection array in SOT23-6L package, designed to clamp transient overvoltages on data lines. It features 6.1 V minimum breakdown voltage, 5.25 V clamping voltage at 18 A peak pulse current, 190 pF capacitance at 0 V bias, and meets IEC 61000-4-2 Level 4 (±30 kV contact/air discharge) for USB, HDMI, and audio interface protection.

For engineers reviewing the ESDA6V1SC6 datasheet, ESDA6V1SC6 pinout, ESDA6V1SC6 application, or ESDA6V1SC6 equivalent, key selection criteria include clamping voltage under 18 A stress, low 190 pF line-to-line capacitance for high-speed signal integrity, unidirectional configuration for ground-referenced I/O, and SOT23-6L footprint compatibility with dense PCB layouts.

Technical Context

The ESDA6V1SC6 integrates four independent unidirectional avalanche diodes in a single monolithic silicon chip, each configured as a cathode-to-rail clamp for positive transients and anode-to-ground path for negative transients. Its structure enables fast response (<1 ns) to ESD events while maintaining low dynamic resistance (6 Ω typical) and minimal leakage (<2 µA at 5.25 V).

It operates across –55 °C to +150 °C junction temperature range and sustains 400 W peak pulse power (8/20 µs waveform), with thermal stability ensured by α_T = 10^–4/°C voltage temperature coefficient and 260 °C soldering tolerance per JEDEC J-STD-020.

Key Specifications

Pinout & Package

SOT23-6L (SC-59) thermally enhanced plastic package with gull-wing leads, UL94 V0 rated epoxy, lead-free ECOPACK® compliant, and 260 °C maximum soldering temperature rating.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ESDA6V1SC5 and TPD2E001DRYR, the ESDA6V1SC6 uniquely delivers four fully independent 5 V-compatible clamping paths in a standard SOT23-6L footprint, balancing low clamping voltage, robust 30 kV immunity, and signal-integrity-preserving capacitance for mainstream digital interfaces.

Availability

ESDA6V1SC6 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI DDC line safeguarding, and smartphone audio jack ESD hardening requiring stable component supply and long-term production continuity.

Supply support for ESDA6V1SC6 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 ICs, sensors, and protection devices for automotive, industrial, and consumer markets.

The Transil™ ESDAxxSCx series was developed specifically for high-density board-level transient suppression in portable and interface-rich electronics, emphasizing low capacitance, precise clamping, and compliance with international ESD immunity standards.

FAQ

What is the maximum operating temperature for ESDA6V1SC6?

The ESDA6V1SC6 has a specified operating junction temperature range of –55 °C to +150 °C, validated per Table 2 in the official datasheet. This allows deployment in under-hood automotive modules, industrial PLCs, and sealed consumer enclosures without thermal derating up to 150 °C ambient when PCB copper area and airflow meet JEDEC JESD51-2 guidelines.

Does ESDA6V1SC6 support bidirectional ESD protection?

No - ESDA6V1SC6 implements four unidirectional Transil™ clamps, each configured to conduct only for negative transients (anode-to-ground) and positive transients (cathode-to-V_CC). For bidirectional protection, ST offers the ESDALY series; this part is optimized for ground- and rail-referenced I/O where polarity is known and fixed.

Can ESDA6V1SC6 be used on 3.3 V logic lines?

Yes - its 6.1 V minimum breakdown voltage provides sufficient margin above 3.3 V nominal rails to prevent false triggering during normal operation, while its 5.25 V clamping voltage remains safely below the 4.6 V absolute maximum rating typical of 3.3 V CMOS I/O. Leakage stays below 2 µA at 3.3 V bias, preserving signal integrity.

Is the SOT23-6L package RoHS and REACH compliant?

Yes - the ESDA6V1SC6 is manufactured in ST's ECOPACK®-compliant SOT23-6L package, which is lead-free, halogen-free, and fully compliant with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Full material declarations and test reports are available via ST's Quality Portal using order code ESDA6V1SC6.