Nexperia USA Inc. PESD2IVN-UX

Overview

PESD2IVN-U from Nexperia is a bidirectional ESD protection diode in SOT323 (SC-70) package, designed to protect two automotive in-vehicle network lines-CAN, LIN, FlexRay, and SENT-from ESD (up to 18 kV IEC 61000-4-2 Level 4) and surge transients (3 A, 8/20 µs). It features 26.5 V reverse standoff voltage, 8.5–11 pF capacitance at 1 MHz, and 38 V clamping voltage at 1 A.

For engineers reviewing the PESD2IVN-U datasheet, PESD2IVN-U pinout, PESD2IVN-U application, or PESD2IVN-U equivalent, key selection criteria include bidirectional clamping performance, matched diode capacitance (ΔCd/Cd = 0.1 %), AEC-Q101 qualification, low dynamic resistance (2 Ω), and common-cathode dual-line topology for space-constrained automotive PCB layouts.

Technical Context

This device implements a dual-channel, common-cathode TVS structure optimized for high-speed automotive serial buses. Its symmetrical V-I characteristics (Fig. 3) enable bidirectional transient suppression without polarity sensitivity, with breakdown voltage (28–32 V) intentionally set above typical CAN bus common-mode range (±12 V) but below system-level insulation limits.

The matched capacitance (ΔCd/Cd ≤ 0.1 %) ensures minimal skew between protected differential pairs, critical for SENT timing accuracy and CAN bit integrity. Clamping is validated per IEC 61000-4-2 (±8 kV contact) and IEC 61000-4-5 (3 A, 8/20 µs), with thermal derating defined up to 150 °C junction temperature.

Key Specifications

Pinout & Package

Package: SOT323 (SC-70), 3-lead surface-mount plastic package with 1.3 mm × 1.8 mm footprint and 0.95 mm height - optimized for high-density automotive PCBs and compatible with standard reflow soldering profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-line automotive ESD protection applications.

Compared with NUP2114 and ESD9X5.0ST5G, PESD2IVN-U uniquely delivers AEC-Q101 qualification, 0.1 % capacitance matching, and 38 V clamping in SOT323 - making it the only option qualified for timing-sensitive, dual-line automotive serial buses requiring minimal board area.

Availability

PESD2IVN-U is available at Aetrix Electronics and suitable for automotive CAN bus protection, SENT sensor interface hardening, FlexRay gateway shielding, and LIN master node ESD mitigation requiring stable component supply across production lifecycles.

Supply support for PESD2IVN-U 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 logic, discrete, and MOSFET solutions, with deep automotive qualification expertise and manufacturing scale.

PESD2IVN-U belongs to Nexperia's Automotive ESD Protection Diode product line, engineered specifically for AEC-Q101-compliant transient suppression on high-speed in-vehicle networks including CAN, LIN, FlexRay, and SENT.

FAQ

What is the maximum operating temperature for PESD2IVN-U in continuous use?

The PESD2IVN-U is rated for junction temperatures up to 150 °C and ambient temperatures from −55 °C to +150 °C, fully compliant with AEC-Q101 thermal stress requirements. Derating of peak pulse power begins above 25 °C (see Fig. 5), but DC operation remains valid across the full automotive temperature range.

Can PESD2IVN-U be used to protect USB 2.0 lines?

No - PESD2IVN-U is not recommended for USB 2.0. Its 8.5–11 pF capacitance exceeds the 1–2 pF typical limit for full-speed USB, and its 26.5 V VRWM is mismatched to USB's 3.3 V signaling. It is purpose-built for automotive serial buses with higher voltage margins and relaxed capacitance constraints.

How does the common-cathode configuration affect PCB layout?

The common-cathode (pin 3) requires direct, low-inductance connection to a solid ground plane. Pins 1 and 2 must be routed symmetrically to their respective protected lines, with minimal stub length (<2 mm) and no vias between diode and connector - ensuring equal path impedance and preserving capacitance matching.

Is PESD2IVN-U compatible with lead-free reflow soldering processes?

Yes - PESD2IVN-U is qualified for lead-free reflow per J-STD-020, with a maximum peak temperature of 260 °C. The SOT323 package outline (Fig. 11) and recommended reflow footprint (Fig. 12) are explicitly defined for standard Pb-free thermal profiles, including preheat, soak, ramp, and cooling phases.