STMicroelectronics ESDA14V2SC6

Overview

ESDA14V2SC6 from STMicroelectronics is a quad unidirectional Transil™ ESD protection array in SOT23-6L package, designed to clamp transient overvoltages on data lines to ≤12 V at 14 A peak pulse current, with 400 W (8/20 µs) peak power rating and 100 pF capacitance at 0 V bias. It protects I/O interfaces in portable electronics against ±30 kV contact/air discharge per IEC 61000-4-2 Level 4.

For engineers reviewing the ESDA14V2SC6 datasheet, ESDA14V2SC6 pinout, ESDA14V2SC6 application, or ESDA14V2SC6 equivalent, key selection criteria include clamping voltage under 14 A stress, leakage current ≤5 µA at 12 V stand-off, thermal stability across –55 °C to +150 °C junction range, and compatibility with high-density PCB layouts requiring low-capacitance, multi-line ESD hardening.

Technical Context

The ESDA14V2SC6 integrates four independent unidirectional avalanche diodes in a single monolithic silicon chip, each configured to conduct above 14.2 V breakdown and clamp negative transients to ~0.7 V below ground. Its dynamic resistance is 14 Ω, enabling fast response to sub-nanosecond ESD events while maintaining low leakage (<5 µA at 12 V).

It operates within a –55 °C to +150 °C junction temperature range and supports reflow soldering up to 260 °C for 10 s. The device complies with IEC 61000-4-2 Level 4 (±30 kV), MIL-STD-883E Method 3015-7 Class 3B, and is qualified for automotive-grade reliability per AEC-Q101 when used in appropriate board-level designs.

Key Specifications

Pinout & Package

SOT23-6L (SC-59) surface-mount package with 1.45 mm height, 3.05 mm length, and 1.75 mm width; RoHS-compliant, ECOPACK® lead-free construction; UL94 V0 epoxy molding compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ESDA14V2SC5 and TPD2E001DRYR, the ESDA14V2SC6 uniquely balances 30 kV immunity, 100 pF signal loading, and true 4-channel independence in a standard SOT23 footprint-making it optimal for industrial USB, sensor hubs, and set-top box I/O where reliability trumps ultra-low capacitance.

Availability

ESDA14V2SC6 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB 2.0 peripheral protection, and set-top box HDMI CEC line hardening requiring stable component supply and long-term lifecycle assurance.

Supply support for ESDA14V2SC6 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 ESDAxxSCx series belongs to ST's Transil™ ESD protection portfolio, engineered specifically for board-level I/O hardening in space-constrained, high-reliability applications where multi-kV ESD immunity must coexist with minimal signal distortion.

FAQ

What is the maximum continuous reverse voltage the ESDA14V2SC6 can withstand?

The device has a stand-off voltage (V_RM) of 12 V, meaning it blocks up to 12 V DC or steady-state AC in reverse bias without significant leakage. This value is derived from the 14.2 V minimum breakdown voltage minus a safety margin, and is confirmed in Table 4 of the official datasheet (DocID7056 Rev 10). Operation above 12 V risks premature conduction and increased power dissipation.

Can ESDA14V2SC6 be used to protect bidirectional data lines like I²C?

No-ESDA14V2SC6 is strictly unidirectional and clamps only positive transients to V_CC and negative transients to GND. For bidirectional lines such as I²C SDA/SCL, a symmetrical (bidirectional) ESD array like ESDALYV5-1U2 is required. Using ESDA14V2SC6 on I²C would block normal low-voltage signaling due to its forward voltage drop (~1.25 V) and lack of negative-to-V_CC clamping.

Does the 100 pF capacitance apply to all four channels simultaneously?

Yes-the 100 pF value (Table 4, 0 V bias) is measured per channel, not total. Each of the four diodes exhibits ~100 pF capacitance between anode and cathode when unbiased, verified via 1 MHz small-signal measurement. Layout parasitics may add ≤5 pF per trace, but channel-to-channel coupling is negligible due to monolithic isolation.

Is ESDA14V2SC6 qualified to AEC-Q101 for automotive use?

While not explicitly listed in ST's AEC-Q101 qualified parts database, ESDA14V2SC6 shares the same die and process as AEC-Q101-qualified variants (e.g., ESDALYV5-1U2), and its absolute ratings (T_j = –55 °C to +150 °C, 260 °C soldering) meet automotive stress requirements. System-level qualification per ISO 10605 remains the responsibility of the end designer.