Nexperia USA Inc. PESD5V0S1UJF

Overview

PESD5V0S1UJ from Nexperia is a unidirectional ESD protection diode in SC-90 (SOD323F) package, designed to protect single signal lines against IEC 61000-4-2 level 4 ESD (±30 kV contact), IEC 61000-4-5 surge (47 A, 8/20 µs), with 5 V reverse standoff voltage, 19 V clamping voltage at 47 A, and 480–530 pF capacitance - deployed in USB 2.0 data lines, HDMI hot-plug detection, and audio jack interfaces.

For engineers reviewing the PESD5V0S1UJ datasheet, PESD5V0S1UJ pinout, PESD5V0S1UJ application, or PESD5V0S1UJ equivalent, key selection criteria include clamping voltage under 47 A surge, sub-5 V VRWM for 3.3 V logic compatibility, low leakage (<0.3 µA), AEC-Q101 qualification for automotive infotainment, and SOD323F footprint constraints in space-constrained portable designs.

Technical Context

This unidirectional TVS diode operates as a clamping device between signal line and ground, conducting only when reverse voltage exceeds 6.2 V breakdown threshold (typ. 6.8 V). Its low differential resistance (2–100 Ω) ensures rapid voltage suppression during transients while maintaining minimal signal distortion on high-speed lines.

Thermal design relies on junction-to-solder-point thermal resistance of 170 K/W (cathode tab mounted on 1 cm² pad), enabling reliable power dissipation up to 890 W peak pulse (8/20 µs) without thermal runaway. The 150 °C max junction temperature rating supports operation in automotive under-hood and industrial edge environments.

Key Specifications

Pinout & Package

SC-90 (SOD323F) surface-mount plastic package: 2-pin, 1.7 mm × 1.25 mm × 0.7 mm body height, cathode marked by bar on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SZ1.5SMC5.0A and ESDBLE5.0D1W, PESD5V0S1UJ uniquely balances ultra-small SOD323F footprint, AEC-Q101 compliance, and 19 V clamping at full 47 A surge-making it optimal for automotive and portable high-speed interfaces where board space and reliability are co-constrained.

Availability

PESD5V0S1UJ is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI hot-plug detection, and automotive infotainment display interfaces requiring stable component supply across production lifecycles.

Supply support for PESD5V0S1UJ 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 bipolar transistors.

PESD5V0S1UJ belongs to Nexperia's unidirectional TVS diode product line, engineered specifically for high-speed data line protection in portable, automotive, and industrial systems where compact size and robust transient immunity are mandatory.

FAQ

Is PESD5V0S1UJ bidirectional or unidirectional?

PESD5V0S1UJ is strictly unidirectional: it clamps only when the anode is driven positive relative to the cathode. It does not protect against negative transients on the signal line unless paired with a second device or used in a dual-rail configuration. This architecture enables lower capacitance and tighter clamping than bidirectional equivalents.

What is the significance of the 19 V clamping voltage at 47 A?

The 19 V clamping voltage at 47 A (per IEC 61000-4-5 8/20 µs waveform) defines the maximum voltage seen by downstream circuitry during worst-case surge events. For 3.3 V systems, this ensures the protected IC remains within its absolute maximum input voltage rating (typically 4.6 V or 6 V), preventing latch-up or gate oxide damage.

Can PESD5V0S1UJ be used on 5 V logic lines?

No - PESD5V0S1UJ has a 5 V reverse standoff voltage (VRWM) and 6.2 V minimum breakdown voltage. Applying 5 V continuously risks excessive leakage or premature conduction. It is intended for 3.3 V or lower I/O rails (e.g., USB 2.0, HDMI HPD, audio codecs), not 5 V TTL or CMOS interfaces.

How does the SOD323F package affect thermal performance?

The SOD323F package uses the cathode tab as the primary thermal path, achieving 170 K/W junction-to-solder-point resistance when mounted on a 1 cm² copper pad. This enables safe dissipation of 890 W peak pulses without exceeding 150 °C junction temperature - critical for automotive under-dash deployments where ambient temperatures reach 105 °C.