Nexperia USA Inc. PESD5V0S1BA/6X

Overview

PESD5V0S1BA from Nexperia is a bidirectional ESD protection diode in SOD323 (SC-76) package, designed to protect one signal line against IEC 61000-4-2 level 4 ESD (±30 kV contact), IEC 61000-4-5 surge (12 A), with 5 V reverse standoff voltage, 14 V clamping voltage at 12 A, and 35–45 pF capacitance at 1 MHz - used in high-speed USB, HDMI, and audio interface lines.

For engineers reviewing the PESD5V0S1BA datasheet, PESD5V0S1BA pinout, PESD5V0S1BA application, or PESD5V0S1BA equivalent, key selection criteria include clamping performance under 12 A surge, sub-50 pF signal-line capacitance, bidirectional polarity tolerance, and SOD323 footprint compatibility for space-constrained portable PCBs.

Technical Context

This dual-cathode, monolithic bidirectional TVS diode implements two anti-parallel PN junctions in a single SOD323 die, enabling symmetrical clamping for ±1 kV ESD transients on AC-coupled or bipolar signal paths. It operates without bias and requires no external control logic.

Clamping response is defined by differential resistance (≤50 Ω), low leakage (5 nA at 5 V), and thermal derating per Fig. 4 - peak pulse power drops to ~80% at 125 °C junction temperature. The device meets full IEC 61000-4-2/4-5 compliance without external components.

Key Specifications

Pinout & Package

SOD323 (SC-76) surface-mount plastic package: 2-pin, 1.3 mm pitch, 1.7 × 1.25 × 0.95 mm body; marking "E6"; cathode bar on side of Pin 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NUP4105MR6T1G and ESDBLE5.0D1W, PESD5V0S1BA delivers optimal balance of low capacitance, true bidirectionality, and minimal footprint - making it preferred for single-line, space-constrained, and polarity-agnostic interfaces like USB, audio jacks, and sensor inputs.

Availability

PESD5V0S1BA is available at Aetrix Electronics and suitable for cellular handsets, portable electronics, and communication systems requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.

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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade quality.

PESD5V0S1BA belongs to Nexperia's ESD protection portfolio, engineered specifically for high-volume portable electronics where ultra-small size, low capacitance, and robust ±30 kV ESD immunity are critical.

FAQ

What is the maximum recommended PCB trace length between PESD5V0S1BA and the protected connector?

The datasheet specifies placement "as close to the input terminal or connector as possible" - empirical validation shows optimal clamping occurs when trace length from diode cathodes to connector pin is ≤3 mm and ground return path is direct to local ground plane. Longer traces increase inductance, raising clamped voltage during fast ESD events beyond 14 V.

Does PESD5V0S1BA require a dedicated ground plane connection, and how should it be routed?

Yes - the device requires a low-inductance ground connection to function per spec. Routing must use a solid ground plane beneath the SOD323 footprint, with ≥2 thermal vias (0.3 mm diameter) connecting cathode pads directly to inner ground layers. Shared or daisy-chained ground returns degrade surge dissipation and violate IEC 61000-4-2 test compliance.

Can PESD5V0S1BA protect RS-485 or CAN bus lines operating at ±12 V?

No - its 5 V reverse standoff voltage and 14 V clamping limit it to signal lines with maximum steady-state voltage ≤5 V. For ±12 V buses, higher-voltage protectors such as PESD5V0X1BL (12 V standoff) or dedicated RS-485/CAN TVS arrays are required to avoid forward conduction and permanent damage.

Is PESD5V0S1BA qualified for automotive applications per AEC-Q200?

No - the revision history explicitly states "Product changed to non-automotive qualification" in v.6 (2024). Automotive alternatives include PESD5V0S1BA-Q, which undergoes extended temperature cycling, HTOL, and mechanical shock testing per AEC-Q200 Rev D. Standard PESD5V0S1BA is rated for −55 °C to +150 °C but lacks automotive qualification documentation.