Nexperia USA Inc. PESD5V0H1BSNYL

Overview

PESD5V0H1BSNYL from Nexperia is an ultra-low-capacitance bidirectional ESD protection diode in a DSN0402B-2 (SOD992B) 0.43 mm × 0.23 mm leadless package, rated for ±5 V reverse standoff voltage, 0.17 pF typical capacitance at 1 MHz, and ±15 kV IEC 61000-4-2 contact discharge protection - deployed on high-speed differential interfaces including USB 3.2 and HDMI 2.1 FRL.

For engineers reviewing the PESD5V0H1BSNYL datasheet, PESD5V0H1BSNYL pinout, PESD5V0H1BSNYL application, or PESD5V0H1BSNYL equivalent, key selection criteria include sub-0.2 pF capacitance, <5 V clamping at 7 A (8/20 µs), -0.45 dB insertion loss at 10 GHz, and compatibility with 10+ Gbit/s data rates in space-constrained portable and computing systems.

Technical Context

This device implements a snap-back clamping structure with negative dynamic resistance, enabling low-voltage clamping during ESD transients while maintaining minimal signal distortion on bidirectional lines. Its symmetrical cathode-to-cathode configuration supports AC-coupled and dual-polarity signal paths without polarity constraints.

Designed for placement directly at I/O connectors, it delivers effective protection against IEC 61000-4-2 ESD, IEC 61000-4-5 surge (7 A, 8/20 µs), and fast transient events - validated via TLP and VF-TLP characterization up to 70 A with dynamic resistance as low as 0.22 Ω.

Key Specifications

Pinout & Package

DSN0402B-2 (SOD992B) is a 2-terminal, leadless, ultra-small surface-mount package measuring 0.43 mm × 0.23 mm × 0.12 mm with 0.28 mm pitch and bottom-side polarity marking. The device has no anode; both terminals are cathodes configured for bidirectional clamping.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPD2E001DRYR and ESD5V3U2U-2/TR, PESD5V0H1BSNYL delivers 4× lower capacitance and 3× better high-frequency insertion/return loss - making it the only option qualified for HDMI 2.1 FRL and Thunderbolt 4 full-bandwidth protection in 0402-class footprints.

Availability

PESD5V0H1BSNYL is available at Aetrix Electronics and suitable for high-speed interface protection, portable electronics ESD hardening, and computing peripheral design requiring stable component supply and guaranteed long-term manufacturability.

Supply support for PESD5V0H1BSNYL 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 and logic devices, with leadership in ESD protection, MOSFETs, and analog solutions for automotive and consumer markets.

This device belongs to Nexperia's TrEOS family of ultra-low-capacitance ESD protectors, engineered specifically for preserving signal fidelity on multi-gigabit serial interfaces while meeting stringent IEC 61000-4-2/4-5 immunity requirements.

FAQ

What is the maximum recommended trace length between PESD5V0H1BSNYL and the protected connector?

Per Nexperia application guidance (Section 10), the device must be placed within 2 mm of the I/O connector with minimized loop area. Longer traces increase inductance, degrading clamping speed and allowing voltage overshoot above V_CL; layout validation using TDR (Fig. 7) confirms optimal performance only with sub-1.5 mm pad-to-pad routing.

Can PESD5V0H1BSNYL be used on DC-biased signal lines such as PCIe or SATA?

Yes - its bidirectional snap-back structure operates independently of DC bias polarity. It is qualified for use on PCIe Gen 3/4 and SATA III lines, provided the DC common-mode voltage remains within ±5 V standoff rating and no sustained overvoltage exceeds breakdown (V_BR ≥ 9 V) to avoid snap-back latch-up.

Does PESD5V0H1BSNYL require external biasing or series impedance for proper operation?

No - it is a passive, two-terminal device requiring no external components. Its symmetrical cathode-cathode topology enables direct shunt connection between signal and ground. Series resistors or ferrites are unnecessary and would degrade high-frequency performance.

How does PESD5V0H1BSNYL perform under repeated ESD stress?

Tested per IEC 61000-4-2 with ten consecutive ±15 kV contact discharges (Section 8), the device shows no parameter shift beyond specification limits. Its robust silicon process and low dynamic resistance ensure stable clamping voltage and capacitance retention after repeated stress events.