STMicroelectronics ECMF4-2450A60N10

Overview

ECMF4-2450A60N10 from STMicroelectronics is a 4-line common mode filter with integrated ESD protection for high-speed differential serial interfaces, featuring 6.4 GHz differential bandwidth, ±25 kV air/±10 kV contact ESD robustness per IEC 61000-4-2 Level 4, and 0.25–0.40 pF diode capacitance at 2.5–6 GHz - deployed in HDMI 2.1, USB4, and MIPI-based notebook and streaming box designs.

For engineers reviewing the ECMF4-2450A60N10 datasheet, ECMF4-2450A60N10 pinout, ECMF4-2450A60N10 application, or ECMF4-2450A60N10 equivalent, key selection criteria include differential cutoff frequency (6.4 GHz), common-mode attenuation at Wi-Fi bands (–30 to –33 dB @ 2.4–2.47 GHz), clamping voltage (17.3 V @ 8 kV contact discharge), DC resistance (5 Ω), and µQFN10L package compatibility with fine-pitch PCB layout.

Technical Context

This device integrates four bidirectional ESD-protected common mode chokes in a single µQFN10L package, supporting two independent differential lanes (D1+, D1−, D2+, D2−) with shared GND terminals. Its architecture delivers simultaneous broadband differential signal integrity and narrowband common-mode rejection centered at 2.4 GHz and 5.0 GHz.

Designed for placement directly at high-speed connector interfaces, it suppresses both radiated EMI and ingress RFI while maintaining <0.4 pF line-to-line capacitance and <5 Ω series resistance - critical for preserving eye diagram opening in 20 Gbps USB4 and 12 Gbps HDMI 2.1 channels.

Key Specifications

Pinout & Package

ECMF4-2450A60N10 uses a 2.20 mm × 1.35 mm × 0.45 mm µQFN10L package with 0.4 mm pitch, exposed thermal pad, and pin 1 identification mark. The package is RoHS-compliant, halogen-free, and optimized for automated SMT assembly with recommended stencil opening of 0.19 mm thickness.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPD4E05U06DQAR and CM1224-04SO, ECMF4-2450A60N10 uniquely supports 20 Gbps USB4 and 12 Gbps HDMI 2.1 while delivering industry-leading 2.4 GHz common-mode rejection - making it the only option for next-gen portable AV interfaces requiring both speed and coexistence robustness.

Availability

ECMF4-2450A60N10 is available at Aetrix Electronics and suitable for notebook, streaming box, and set-top box designs requiring stable component supply, high-volume production ramp, and long-term lifecycle assurance.

Supply support for ECMF4-2450A60N10 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, MEMS, power, and microcontroller solutions for automotive, industrial, and consumer markets.

ECMF filters belong to ST's ESD and signal-integrity protection product line, engineered specifically to replace discrete ESD diodes and common-mode chokes in high-speed interface designs - reducing PCB area by up to 70% while improving EMC performance.

FAQ

What is the maximum supported data rate for ECMF4-2450A60N10?

The device supports differential signaling up to 20 Gbps, validated with clean eye diagrams for USB4 (20.0 Gbps), HDMI 2.1 (12 Gbps), and USB 3.2 Gen 2 (10 Gbps) per Figures 8–13 in DS12709 Rev 3. Its 6.4 GHz –3 dB cutoff ensures <0.5 dB insertion loss at Nyquist frequency for all these standards.

Can ECMF4-2450A60N10 be used for single-ended interfaces like PCIe or SATA?

No - this device is designed exclusively for differential pairs. Its internal common-mode choke topology requires matched D+ and D− paths; applying it to single-ended signals would cause severe impedance mismatch and signal reflection. It is not rated or characterized for PCIe or SATA use.

Is the µQFN10L package compatible with standard reflow profiles?

Yes - ST specifies a JEDEC J-STD-020-compliant reflow profile with peak temperature of 240–245 °C for 20–30 seconds, ramp rates ≤3 °C/s, and cooling rate ≥−6 °C/s. The package withstands this profile without delamination or solder joint voiding when using halide-free, no-clean paste with 20–38 μm particle size.

How does the dual-band common-mode rejection benefit Wi-Fi/Bluetooth coexistence?

The –30 to –33 dB attenuation at 2.4–2.47 GHz directly suppresses harmonics and leakage from 2.4 GHz Wi-Fi/Bluetooth transceivers that couple onto HDMI or USB lanes. This prevents receiver desensitization and packet loss - confirmed by improved SNR in streaming box RF immunity tests per DS12709 Figure 3.