Nexperia USA Inc. PCMF3USB3SZ

Overview

PCMF3USB3SZ from Nexperia is a 3-channel common-mode EMI filter with integrated ±15 kV IEC 61000-4-2 ESD protection, designed for USB 3.2, HDMI 2.0, and MIPI D-PHY/CSI-2 differential signal paths. It delivers <−38 dB common-mode attenuation at 2.6 GHz, <−18 dB differential insertion loss at 5 GHz, and 0.25 pF diode capacitance per line - enabling high-fidelity 10 Gbps signal integrity while suppressing RF noise in compact mobile interfaces.

For engineers reviewing the PCMF3USB3SZ datasheet, PCMF3USB3SZ pinout, PCMF3USB3SZ application, or PCMF3USB3SZ equivalent, this page provides verified package mapping (WLCSP15_6-3-6), channel-specific terminal roles, real-world eye diagram performance data (USB 3.2/HDMI 2.0), and validated alternative parts with documented functional trade-offs.

Technical Context

The device integrates three independent differential channels, each with magnetically coupled coils for common-mode rejection and bidirectional ESD clamping diodes on both signal lines. Its WLCSP15 package implements six input bumps (A1–A6), three ground bumps (B1–B3), and six output bumps (C1–C6), with B1–B3 internally unconnected but assigned to channel-specific ground domains.

It operates across −40 °C to +125 °C ambient, supports 5 V DC input voltage, and maintains <0.3 dB differential insertion loss below 1 MHz while achieving >6 GHz differential −3 dB cutoff - preserving signal rise time and eye opening for SuperSpeed USB and TMDS applications without requiring external bias or control logic.

Key Specifications

Pinout & Package

PCMF3USB3SZ uses the WLCSP15_6-3-6 wafer-level chip-scale package (2.42 mm × 1.22 mm × 0.60 mm max), with 15 solder bumps arranged in three rows (A/B/C) and six columns. Ground bumps B1–B3 are assigned to channel-specific ground domains but have no internal connection - they serve as thermal and mechanical anchors only.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPD4S012RTER and EMIF06-USB03F3, PCMF3USB3SZ offers superior high-frequency common-mode suppression (−38 dB vs. −25/−30 dB), lower parasitic capacitance (0.25 pF vs. 1.5/0.5 pF), and channel-isolated ground bumps - making it optimal for space-constrained, multi-gigabit differential interfaces demanding minimal signal degradation and maximum ESD robustness.

Availability

PCMF3USB3SZ is available at Aetrix Electronics and suitable for smartphone front-panel interfaces, tablet USB-C docking stations, and automotive infotainment HDMI outputs requiring stable component supply across high-volume production cycles.

Supply support for PCMF3USB3SZ 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

Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance analog, logic, and ESD protection solutions for mobile, computing, and automotive markets.

PCMF3USB3SZ belongs to the PCMFxUSB3S series - engineered specifically for high-speed differential interfaces (USB 3.2, HDMI, MIPI) where simultaneous ESD robustness, ultra-low capacitance, and wideband common-mode rejection are mandatory for signal fidelity and regulatory compliance.

FAQ

What is the maximum data rate supported by PCMF3USB3SZ?

PCMF3USB3SZ supports differential signaling up to 10 Gbps, as validated by USB 3.2 Gen 2 eye diagrams (Fig. 5 and Fig. 7) showing >12.5% eye height margin with the device in-circuit. Its 6 GHz differential −3 dB cutoff and <0.3 dB insertion loss below 1 MHz ensure minimal intersymbol interference and jitter accumulation across PCIe Gen 3, USB 3.2, and HDMI 2.0 protocols.

Can PCMF3USB3SZ be used for MIPI M-PHY applications?

Yes - PCMF3USB3SZ is explicitly qualified for MIPI M-PHY PWM-TX operation, with published eye diagrams (Fig. 13–16) demonstrating preserved eye opening at ±140 mV swing and 15.6 ns/div horizontal scale. Its 0.25 pF capacitance and symmetric line-to-line structure maintain M-PHY's strict timing skew requirements for camera and display serial links.

How should the B1–B3 ground bumps be handled on the PCB?

B1–B3 are mechanical ground bumps with no internal electrical connection; they must be soldered to individual local ground pours under each channel group - not tied together. This preserves channel isolation and prevents ground-bounce coupling between USB, HDMI, and MIPI lanes. Thermal relief is unnecessary due to their passive role.

Does PCMF3USB3SZ require external bias or control signals?

No - PCMF3USB3SZ is a fully passive device requiring no power supply, enable pins, or configuration registers. It operates transparently in-circuit: differential signals pass with <3 Ω series resistance and <0.25 pF loading, while common-mode noise and ESD transients are attenuated or clamped without affecting normal signal swing or DC levels.