STMicroelectronics ECMF2-40A100M6Y

Overview

ECMF2-40A100M6Y from STMicroelectronics is an AEC-Q101-qualified automotive common mode filter with integrated ESD protection for differential high-speed data lines. It delivers 12.5 GHz differential bandwidth, -15 dB common mode attenuation at 2.4 GHz and 5.9 GHz, <70 nA leakage at 5 V VRM, and complies with ISO 10605 (±9 kV contact / ±20 kV air discharge). It is deployed in MIPI A-PHY, GMSL, HDMI 2.1, and USB4 interfaces within ADAS camera links.

For engineers reviewing the ECMF2-40A100M6Y datasheet, ECMF2-40A100M6Y pinout, ECMF2-40A100M6Y application, or ECMF2-40A100M6Y equivalent, key selection criteria include differential cutoff frequency, common mode attenuation profile, ESD clamping voltage under ISO 10605 pulse, wettable flank compatibility with AOI, and QFN-6L footprint adherence to IPC7531.

Technical Context

This device integrates a common mode choke and bidirectional ESD protection diodes into a single QFN-6L package, enabling simultaneous suppression of differential-mode signal degradation and common-mode noise on SerDes lanes. Its architecture supports dual-side termination - connector-side ESD robustness and IC-side impedance matching - with symmetrical D+ and D− paths routed across pins 1/6 and 2/5.

The filter operates with 5 V reverse stand-off voltage and 5.8 V typical breakdown, maintaining ≤4 Ω DC resistance and delivering clamping voltage ≤20 V at 30 ns under ±8 kV ISO 10605 contact discharge. Its 12.5 GHz differential cutoff ensures signal integrity up to HDMI 2.1 (12 Gbps) and USB4 (20 Gbps) eye diagram compliance.

Key Specifications

Pinout & Package

ECMF2-40A100M6Y uses a 6-pin QFN-6L (DFN1414) package with wettable flanks, measuring 1.40 mm × 1.35 mm × 0.75 mm, compliant with IPC7531 footprint and JEDEC registered outline.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar common mode filter with integrated ESD protection applications.

Compared with TPD4E05U06DQAR and CM1213A-04SO, ECMF2-40A100M6Y uniquely combines automotive-grade reliability, 12.5 GHz signal fidelity, and AOI-ready packaging - eliminating trade-offs between bandwidth, ESD robustness, and manufacturability in next-gen vehicle architectures.

Availability

ECMF2-40A100M6Y is available at Aetrix Electronics and suitable for ADAS camera links, GMSL serial interfaces, HDMI 2.1 in-vehicle displays, and USB4 automotive docking requiring stable component supply across automotive production lifecycles.

Supply support for ECMF2-40A100M6Y 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, serving automotive, industrial, and consumer markets with silicon solutions since 1987.

This device belongs to ST's automotive-grade analog interface portfolio, engineered specifically to address EMI/ESD co-design challenges in high-speed in-vehicle networks including MIPI A-PHY, GMSL, and HDMI/USB physical layers.

FAQ

What is the maximum operating temperature for ECMF2-40A100M6Y?

The ECMF2-40A100M6Y has a junction temperature range of -55 °C to +150 °C and is qualified per AEC-Q101 for automotive under-hood environments. Its MSL level 1 rating allows unlimited floor life at ≤30 °C/60% RH, and it withstands peak reflow temperatures up to 260 °C for 10 seconds per JEDEC J-STD-020.

Does ECMF2-40A100M6Y require external bias or control signals?

No. The ECMF2-40A100M6Y is a passive, unidirectional common mode filter with integrated ESD protection diodes. It requires no external power, bias voltage, or configuration pins - it operates transparently in-line on differential data pairs with zero latency or signal conditioning overhead.

Can this part be used on USB2.0 differential lines?

Yes. Although optimized for USB3.2 Gen1/Gen2 and USB4, the ECMF2-40A100M6Y is fully compatible with USB2.0 (480 Mbps) due to its wideband 12.5 GHz response and low insertion loss (<0.5 dB typical up to 500 MHz). Its 5 V VRM and ESD rating exceed USB2.0 system-level surge requirements.

How does the wettable flank design impact assembly yield?

The wettable flank geometry on all six terminals enables reliable solder meniscus formation visible to AOI systems, increasing first-pass inspection pass rates by >99.5% in high-volume automotive SMT lines. This eliminates manual visual checks and reduces escape risk for voided or bridged joints in fine-pitch QFN assemblies.