NXP Semiconductors PESD5V0S1BA/ZLX

Overview

PESD5V0S1BA from Nexperia is a low-capacitance bidirectional ESD protection diode in SOD323 (SC-76) package, designed to protect one signal line against electrostatic discharge and surge transients. It features 5 V reverse stand-off voltage, 35–45 pF capacitance at 1 MHz, 30 kV IEC 61000-4-2 contact ESD rating, 14 V clamping voltage at 12 A surge current, and ultra-low 5 nA leakage at 5 V - ideal for high-speed data lines in portable audio interfaces.

For engineers reviewing the PESD5V0S1BA datasheet, PESD5V0S1BA pinout, PESD5V0S1BA application, or PESD5V0S1BA equivalent, key selection criteria include its bidirectional clamping behavior, sub-45 pF capacitance for minimal signal distortion, SOD323 footprint compatibility with space-constrained PCB layouts, and compliance with IEC 61000-4-2 Level 4 and IEC 61000-4-5 surge standards.

Technical Context

The PESD5V0S1BA implements a symmetric dual-diode architecture configured in back-to-back orientation between two terminals, enabling bidirectional transient suppression without polarity constraints. Its junction design achieves low differential resistance (<50 Ω) and fast response to sub-nanosecond ESD events.

It operates as a voltage-clamped shunt device: below 5 V it presents high impedance (≤5 nA leakage), then rapidly transitions to low-impedance conduction above breakdown (~5.5–9.5 V), limiting transient voltage to ≤14 V at 12 A peak pulse current per IEC 61000-4-5 8/20 µs waveform.

Key Specifications

Pinout & Package

SOD323 (SC-76) plastic surface-mounted package: 2-terminal, leaded, 1.35 × 1.75 × 0.9 mm body size; cathode marked by bar on top surface; optimized for reflow soldering and automated placement.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ESD5Z5.0T1G and TPD2E001DRYR, the PESD5V0S1BA offers higher surge robustness (12 A/130 W) in a widely adopted SOD323 footprint, making it optimal for cost-sensitive, single-line industrial and consumer interfaces where moderate capacitance is acceptable.

Availability

PESD5V0S1BA is available at Aetrix Electronics and suitable for USB 2.0 interface protection, smartphone audio jack hardening, and HDMI hot-plug detection requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for PESD5V0S1BA 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 logic, discrete, and MOSFETs, serving automotive, industrial, and consumer markets with scalable manufacturing.

The PESD5V0S1BA belongs to Nexperia's low-capacitance ESD protection diode family, engineered specifically for signal-line hardening in portable and high-density electronics where board space, signal fidelity, and ESD immunity must coexist.

FAQ

What is the maximum operating temperature for the PESD5V0S1BA?

The PESD5V0S1BA has a maximum junction temperature (Tj) rating of 150 °C and an ambient operating range of −65 °C to +150 °C. This wide thermal envelope supports use in sealed enclosures or near heat-generating components without derating, provided PCB copper area and airflow meet datasheet thermal guidelines. The PESD5V0S1BA maintains specified clamping and leakage performance across this full range.

Does the PESD5V0S1BA require external biasing or control signals?

No, the PESD5V0S1BA is a passive, bidirectional TVS diode that operates without any external power, bias, or control. It functions solely through its intrinsic PN junction characteristics: presenting high impedance below 5 V VRWM and automatically clamping transients above breakdown. The PESD5V0S1BA integrates seamlessly into signal paths with zero active circuitry overhead.

How does the PESD5V0S1BA compare to unidirectional ESD diodes in signal-line protection?

The PESD5V0S1BA uses a back-to-back diode configuration to provide symmetrical clamping for both positive and negative transients, unlike unidirectional diodes that only protect one polarity. This makes the PESD5V0S1BA ideal for AC-coupled or floating lines (e.g., USB, audio) where voltage swings occur above and below ground. Unidirectional variants would require additional grounding strategy or series components.

Can the PESD5V0S1BA be used on 3.3 V logic lines without causing false triggering?

Yes - the PESD5V0S1BA has a 5 V reverse stand-off voltage (VRWM) and typical breakdown starting at 5.5 V, providing ≥2.2 V noise margin above 3.3 V nominal rails. Its 5 nA leakage at 5 V ensures no measurable loading on 3.3 V CMOS inputs. The PESD5V0S1BA reliably remains non-conductive during normal 3.3 V operation while responding instantly to ESD events exceeding 8 kV contact discharge.

Is the marking code for PESD5V0S1BA standardized and traceable?

Yes, the PESD5V0S1BA is marked with "E6" on the top surface of the SOD323 package, per Nexperia's official marking table. This 2-character code is laser-etched or printed and corresponds exclusively to the PESD5V0S1BA type number, enabling visual verification and traceability during incoming inspection or field failure analysis. The PESD5V0S1BA marking aligns with JEDEC standard SOD323 outline and SC-76 designation.