Nexperia USA Inc. PESD5V0F1USF,315

Overview

PESD5V0F1USF from Nexperia is a unidirectional ESD protection diode in a DSN0603-2 (SOD962) leadless SMD package, designed to protect single high-speed signal lines against ±10 kV IEC 61000-4-2 ESD events. It delivers 0.6 pF typical capacitance, 5 V reverse standoff voltage, and 1 nA leakage at 5 V, enabling use in USB 2.0, HDMI, and RF antenna lines where signal integrity is critical.

For engineers reviewing the PESD5V0F1USF datasheet, PESD5V0F1USF pinout, PESD5V0F1USF application, or PESD5V0F1USF equivalent, key selection criteria include ultra-low capacitance for minimal signal distortion, precise clamping behavior under 3 A peak pulse, cathode-marked polarity alignment, and compatibility with 0.4 mm pitch reflow assembly on space-constrained PCBs.

Technical Context

This device operates as a unidirectional transient voltage suppressor, leveraging silicon PN junction clamping to divert ESD energy to ground when reverse voltage exceeds 6 V breakdown threshold. Its dynamic resistance of 0.7 Ω ensures low clamping voltage (10–12 V at 3 A), while maintaining sub-1 nA leakage below 5 V standoff.

The DSN0603-2 package enables direct placement at I/O connectors with minimal parasitic inductance. Its 0.6 × 0.3 × 0.3 mm body and 0.4 mm terminal pitch support high-density routing in portable electronics without compromising ESD path impedance.

Key Specifications

Pinout & Package

DSN0603-2 (SOD962) is a leadless, ultra-small surface-mount package measuring 0.6 × 0.3 × 0.3 mm with 0.4 mm pitch and a marking bar indicating cathode orientation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ESD9X5.0ST5G, PESD5V0F1USF offers tighter capacitance control and smaller footprint for space-critical designs; versus VEML3020-001, it supports 5 V logic domains and higher ESD immunity at the cost of 0.1 pF added capacitance.

Availability

PESD5V0F1USF is available at Aetrix Electronics and suitable for cellular handsets, portable electronics, and communication systems requiring stable component supply with guaranteed long-term manufacturability.

Supply support for PESD5V0F1USF 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 discrete, logic, and MOSFET devices, serving automotive, industrial, and consumer markets with scalable manufacturing and AEC-Q200 qualified portfolios.

PESD5V0F1USF belongs to Nexperia's TrEOS ESD protection family, engineered specifically for ultra-low-capacitance, high-speed interface protection in mobile and wireless applications where signal fidelity and board space are constrained.

FAQ

What is the maximum recommended PCB trace length between PESD5V0F1USF and the protected connector?

The datasheet specifies placement "as close to the input terminal or connector as possible" - empirical validation shows optimal performance with ≤2 mm trace length from diode cathode to ground via and ≤3 mm from anode to protected line. Longer traces increase inductive impedance, raising clamped voltage during 1 ns ESD rise times.

Can PESD5V0F1USF be used to protect bidirectional signal lines like I²C?

No - PESD5V0F1USF is unidirectional and only clamps positive transients on the anode line relative to cathode ground. For bidirectional lines such as I²C, a bidirectional variant like PESD5V0U1USF (same package, symmetric clamping) is required to protect both high- and low-going transients.

Does the 0.6 pF capacitance value vary with applied reverse voltage?

Yes - Figure 3 in the datasheet shows Cd decreases from ~0.75 pF at 0 V to ~0.45 pF at 4 V reverse bias. This voltage-dependent behavior is inherent to silicon junction capacitance and must be accounted for in impedance-matched RF designs operating near VRWM.

Is PESD5V0F1USF compliant with RoHS and REACH regulations?

Yes - Nexperia confirms full compliance with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, including SVHC screening. The device uses lead-free terminations and halogen-free molding compound, with material declarations available via Nexperia's Product Change Notification portal.