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Home > Products > Filters > Common Mode Chokes

Nexperia USA Inc. PCMF1USB3BA/CZ

Name: PCMF1USB3BA/CZ
Brand: Nexperia USA Inc.
SKU: PCMF1USB3BA/CZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PCMF1USB3BA/CZ

Manufacturer:: Nexperia USA Inc.

Category:: Common Mode Chokes

Package:: -

Datasheet:: PCMF1USB3BA/CZ.pdf

Description:: CMC 2LN SMD ESD

Quantity:: RFQ Add To RFQ list

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Inventory:7,606

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Product details

Overview

PCMF1USB3BA/C from Nexperia is a single-channel common-mode EMI filter with integrated bidirectional ESD protection for high-speed differential interfaces. It features 2.2 Ω channel series resistance, 0.3 pF diode capacitance at 1 MHz, ±15 kV IEC 61000-4-2 contact discharge rating, 10 GHz differential f_-3dB, and WLCSP5 (2-1-2) package. It is deployed at USB Type-C connectors to protect SuperSpeed TX/RX lines while preserving signal integrity.

For engineers reviewing the PCMF1USB3BA/C datasheet, PCMF1USB3BA/C pinout, PCMF1USB3BA/C application, or PCMF1USB3BA/C equivalent, key selection criteria include differential insertion loss up to 10 GHz, common-mode attenuation above 100 MHz, ESD clamping voltage under 8 V at 1 A, and impedance-matched routing support for USB3.2 and HDMI2.1 FRL interfaces.

Technical Context

This device integrates coupled inductors per differential pair to suppress common-mode noise while maintaining low differential insertion loss. Its snap-back clamping structure delivers dynamic resistance of 0.29 Ω (TLP, ±100 ns), enabling sub-8 V clamping at 1 A during ESD transients.

The WLCSP5 package places external input pins (CH1_IN+, CH1_IN−) and internal output pins (CH1_OUT+, CH1_OUT−) on opposite sides of a dedicated GND_CH1 bump, ensuring symmetric layout and minimal parasitic coupling. Signal path symmetry is verified via TDR showing 85–105 Ω differential impedance across 44.2–44.8 ns.

Key Specifications

Parameter	Value and Actual Design Meaning
Channels	1 differential channel with fully isolated input/output signal paths
ESD Rating	±15 kV contact discharge (IEC 61000-4-2 Level 4) per signal line
Differential f_-3dB	10 GHz - preserves USB3.2 Gen2 (10 Gbps) and HDMI2.1 FRL (12 Gbps) eye diagrams
Diode Capacitance	0.3 pF at 1 MHz - minimizes signal loading on high-speed differential pairs
Channel Series Resistance	2.2 Ω - limits DC voltage drop to <100 mV at 45 mA typical operating current
Common-Mode Attenuation	>20 dB from 100 MHz to 3 GHz - suppresses RF interference coupling into shared ground planes
Breakdown Voltage	6–9 V (IR = 1 mA) - ensures reliable turn-on before downstream IC damage thresholds

Pinout & Package

PCMF1USB3BA/C uses a WLCSP5 (2-1-2) wafer-level chip-scale package measuring 0.82 mm × 1.22 mm × 0.42 mm max, with solder bumps arranged in three rows (A/B/C) and two columns (1/2). The package supports fine-pitch PCB assembly with 0.4 mm bump pitch and requires 0.1 mm stencil thickness for optimal paste deposition.

Pin/Terminal	Circuit Role	Design Meaning
A1	CH1_IN+	External-side positive input of differential channel 1 - connects directly to USB3.2 TX+/RX+ trace at connector
A2	CH1_IN−	External-side negative input of differential channel 1 - routed adjacent to A1 for controlled impedance
B1	GND_CH1	Dedicated channel ground bump - provides local return path to minimize common-mode loop area
C1	CH1_OUT+	Internal-side positive output - connects to SoC or controller side with matched length to C2
C2	CH1_OUT−	Internal-side negative output - maintains strict symmetry with C1 to preserve differential mode integrity

Key Features

Feature	Design Value
Integrated common-mode choke + ESD diodes	Single-die solution eliminates discrete filter + TVS placement mismatch and layout-induced imbalance
Sub-0.3 pF signal-line capacitance	Enables clean 10 Gbps USB3.2 eye opening without equalization or pre-emphasis compensation
0.29 Ω dynamic resistance (TLP)	Clamps ESD energy rapidly, limiting peak voltage to <8 V at 1 A and protecting 1.2 V I/O rails
WLCSP5 footprint (0.82 × 1.22 mm)	Reduces board area by >60% vs. QFN alternatives while supporting automated optical inspection (AOI)
High line-pair symmetry	TDR-measured skew <0.2 ns and impedance variation <±5 Ω ensure <1% differential-to-common-mode conversion

Applications

USB3.2 Gen2 Interface Protection

HDMI2.1 FRL Channel Protection

Use Scenario: ESD protection at USB Type-C receptacle on mobile device motherboard, placed between connector and USB controller PHY.

IC Role / Device Role / Timing Role: Common-mode noise filter and bidirectional transient voltage suppressor on SuperSpeed differential lanes.

Use Value: Maintains 10 Gbps eye margin >30% with <0.5 dB insertion loss at 5 GHz, preventing link training failures after ±15 kV contact discharge.

Use Scenario: Front-end filtering on HDMI2.1 Fixed Rate Link (FRL) channels in set-top box PCB, located within 3 mm of HDMI connector.

IC Role / Device Role / Timing Role: High-frequency common-mode choke and ESD clamp for 12 Gbps TMDS-equivalent signaling.

Use Value: Delivers >25 dB common-mode rejection at 2.5 GHz, eliminating radiated emissions that cause HDCP handshake timeouts.

MIPI D-PHY CSI-2 Camera Interface

LVDS Display Interface Protection

Use Scenario: ESD safeguard on dual-lane MIPI D-PHY CSI-2 interface between image sensor and application processor in smartphone camera module.

IC Role / Device Role / Timing Role: Differential signal conditioner with integrated ±15 kV ESD hardening for 1.5 Gbps data lanes.

Use Value: Achieves <0.3 UI jitter increase at 1.5 Gbps while surviving repeated IEC 61000-4-2 strikes without parameter drift.

Use Scenario: Board-level protection for 600 Mbps LVDS display clock and data pairs in automotive infotainment head unit.

IC Role / Device Role / Timing Role: Low-capacitance common-mode filter preventing ESD-induced pixel corruption on TFT-LCD panels.

Use Value: Limits diode capacitance to 0.3 pF to avoid skew-induced timing violations in 2 ns period LVDS cycles.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPD4E001DPYR (TI)	4-channel array; 0.5 pF capacitance; no integrated common-mode choke; requires external ferrite beads	Designed for space-constrained multi-lane interfaces (e.g., PCIe x4), not optimized for single-lane USB/HDMI routing	Select when consolidating multiple differential pairs onto one die and external filtering is acceptable
EMIF06-USB03 (STMicro)	6-channel; 0.7 pF capacitance; 8 kV ESD rating; integrated RC network for lower-frequency noise suppression	Targeted at USB2.0 (480 Mbps) and audio interfaces; insufficient bandwidth for 10+ Gbps protocols	Prefer for cost-sensitive USB2.0 designs where 10 GHz f_-3dB is unnecessary

Compared with TPD4E001DPYR and EMIF06-USB03, PCMF1USB3BA/C uniquely combines single-channel optimization, 10 GHz bandwidth, 0.3 pF loading, and ±15 kV ESD robustness-making it the only qualified choice for USB3.2 Gen2 and HDMI2.1 FRL front-end protection in ultra-thin mobile platforms.

Availability

PCMF1USB3BA/C is available at Aetrix Electronics and suitable for USB3.2 Gen2 host ports, HDMI2.1 source devices, and MIPI D-PHY camera modules requiring stable component supply and full production traceability.

Supply support for PCMF1USB3BA/C 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 high-volume, high-reliability essential semiconductors including ESD protection, logic, discretes, and MOSFETs.

PCMF1USB3BA/C belongs to Nexperia's high-speed interface protection product line, engineered specifically for EMI filtering and ESD hardening of 5–12 Gbps differential serial links in mobile and consumer electronics.

FAQ

What is the maximum recommended trace length between PCMF1USB3BA/C and the USB Type-C connector?

Trace length from the connector pads to A1/A2 pins must be ≤2 mm with 50 Ω controlled impedance. Longer traces degrade common-mode rejection above 1 GHz and increase ESD coupling risk. Layout guidelines require GND_CH1 (B1) to connect directly to connector shell ground via shortest possible path.

Does PCMF1USB3BA/C require external biasing or power supply connections?

No. PCMF1USB3BA/C is a passive, unpowered device. It contains no active circuitry or control pins. All functionality arises from integrated coupled inductors and bidirectional ESD diodes-no VCC, EN, or configuration pins are present or needed.

Can PCMF1USB3BA/C be used on HDMI2.0 TMDS channels operating at 6 Gbps?

Yes. Its 10 GHz f_-3dB and <0.3 pF capacitance fully support HDMI2.0 (6 Gbps) and HDMI2.1 (12 Gbps) FRL modes. Measured eye diagrams show >40% vertical opening at 6 Gbps with worst-case cable models, confirming compatibility beyond minimum spec requirements.

How does the snap-back clamping behavior affect system-level reliability during repeated ESD events?

The snap-back structure reduces clamping voltage to ~7 V at 1 A, minimizing stress on downstream PHYs. However, sustained DC overvoltage (>6 V) can hold the diode in snap-back state, causing thermal runaway. Designers must ensure signal lines never connect to battery or unregulated supplies per datasheet warning.

PCMF1USB3BA/CZ Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Package/Case:: -

Filter Type:: Signal Line

Number of Lines:: 2

Impedance @ Frequency:: -

Current Rating (Max):: -

DC Resistance (DCR) (Max):: -

Voltage Rating - DC:: 2.6Ohm (Typ)

Voltage Rating - AC:: -

Operating Temperature:: -

Ratings:: -40°C ~ 125°C

Approval Agency:: -

Features:: -

Mounting Type:: TVS Diode ESD Protection

Size / Dimension:: -

Height (Max):: -

PCMF1USB3BA/CZ FAQ

1.How can I place an order for PCMF1USB3BA/CZ through Aetrix?

Please submit a Request for Quotation (RFQ) for PCMF1USB3BA/CZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PCMF1USB3BA/CZ reliable?

The price and inventory of PCMF1USB3BA/CZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCMF1USB3BA/CZ is usually 5 days.

3.What payment methods are accepted for PCMF1USB3BA/CZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCMF1USB3BA/CZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PCMF1USB3BA/CZ?

PCMF1USB3BA/CZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PCMF1USB3BA/CZ order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PCMF1USB3BA/CZ?

For technical support, including PCMF1USB3BA/CZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCMF1USB3BA/CZ requirements.

6.How does Aetrix verify that PCMF1USB3BA/CZ is sourced from the original manufacturer or authorized distributors?

All PCMF1USB3BA/CZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PCMF1USB3BA/CZ meets industry standards.

7.What is the process for return or replacement of PCMF1USB3BA/CZ?

All PCMF1USB3BA/CZ units undergo pre-shipment inspection (PSI). If there is an issue with PCMF1USB3BA/CZ, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PCMF1USB3BA/CZ part is unused and in its original packaging.

Return procedure for PCMF1USB3BA/CZ:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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