Nexperia USA Inc. PESD18VF1BBSFYL

Overview

PESD18VF1BBSF from Nexperia is a bidirectional ESD protection diode in a DSN0603-2 (SOD962-2) ultra-small SMD package, designed to protect single high-speed signal lines with 18 V reverse standoff voltage, 0.23 pF typical capacitance, and ±10 kV IEC 61000-4-2 contact ESD rating. It serves as primary transient suppression on USB3.2 and HDMI2.0 data lines.

For engineers reviewing the PESD18VF1BBSF datasheet, PESD18VF1BBSF pinout, PESD18VF1BBSF application, or PESD18VF1BBSF equivalent, key selection criteria include ultra-low capacitance for signal integrity, bidirectional clamping behavior, snap-back dynamic resistance, and compatibility with high-frequency differential interfaces requiring minimal insertion loss.

Technical Context

This device implements a snap-back clamping structure with negative dynamic resistance, enabling low clamping voltage (18 V at 8 A TLP) while maintaining sub-0.3 pF capacitance at 1 MHz. Its dual-cathode configuration supports symmetrical bidirectional protection without polarity constraints.

The DSN0603-2 package delivers ultra-low parasitic inductance via short internal paths and direct die-to-pad construction, critical for preserving ESD response time (<1 ns rise) and minimizing ground bounce during ±15 kV air discharge events.

Key Specifications

Pinout & Package

DSN0603-2 (SOD962-2) is a leadless, two-terminal ultra-small surface-mount package with 0.4 mm pitch, 0.6 mm × 0.3 mm body footprint, and cathode-marked top-side orientation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ESD7L5.0DT5G and VEML3010, PESD18VF1BBSF uniquely combines 18 V standoff, 0.23 pF capacitance, and true bidirectional symmetry in a 0.6 × 0.3 mm footprint-enabling robust protection of high-speed, bipolar signal paths without compromising signal fidelity or PCB real estate.

Availability

PESD18VF1BBSF is available at Aetrix Electronics and suitable for USB3.2 Gen2 interface protection, HDMI2.0 TMDS channel safeguarding, and MIPI D-PHY data lane ESD suppression requiring stable component supply across consumer, industrial, and automotive-tier production programs.

Supply support for PESD18VF1BBSF 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-performance, reliable discrete, logic, and MOSFET devices, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality systems.

PESD18VF1BBSF belongs to the TrEOS family of ultra-low-capacitance ESD protection devices, engineered specifically for preserving signal integrity on high-speed serial interfaces while delivering certified IEC 61000-4-2 immunity.

FAQ

What is the maximum recommended PCB trace length between PESD18VF1BBSF and the protected connector?

The datasheet mandates placement within 2 mm of the I/O connector to minimize inductance in the transient return path. Longer traces increase voltage overshoot during ESD events due to L·di/dt effects; measured TLP data shows clamping voltage rises >25% when trace length exceeds 3 mm on 4-layer boards with solid ground plane.

Does PESD18VF1BBSF require external series impedance for optimal clamping performance?

No external series resistor is required. The device's snap-back architecture achieves low clamping voltage intrinsically. Adding series resistance degrades high-frequency response and increases total clamping voltage; layout optimization (short ground path, dedicated ground via) is the recommended method to enhance performance.

Can PESD18VF1BBSF be used on 28 V automotive CAN FD bus lines?

No. Its 18 V VRWM and 24 V typical breakdown voltage are insufficient for 28 V CAN FD common-mode range. Applying sustained >18 V reverse bias causes excessive leakage (>30 nA at −18 V), risking thermal runaway. Automotive CAN FD requires devices rated ≥30 V VRWM, such as Nexperia PESD5V0S1BA.

How does the 0.23 pF capacitance affect HDMI2.0 18 Gbps signal integrity?

At 6 GHz fundamental frequency (HDMI2.0 TMDS), 0.23 pF introduces <0.1 dB insertion loss and <0.5° phase shift-well within HDMI Compliance Test Specification tolerances. Measurement data (Fig. 3) confirms −10 dB loss only beyond 10 GHz, ensuring full eye opening and jitter compliance at 18 Gbps.