Nexperia USA Inc. PESD2IVN27-UX

Overview

PESD2IVN27-U from Nexperia is a dual-channel automotive-grade ESD protection diode in SOT323 (SC-70) package, designed to safeguard two in-vehicle network bus lines against ±30 kV IEC 61000-4-2 and ISO 10605 transients, with 27 V reverse standoff voltage, 36 V clamping at 3 A, and <1 nA leakage current - deployed on CAN, LIN, FlexRay, and SENT interfaces in engine control units and body electronics.

For engineers reviewing the PESD2IVN27-U datasheet, PESD2IVN27-U pinout, PESD2IVN27-U application, or PESD2IVN27-U equivalent, this device is selected for high-reliability bidirectional transient suppression in space-constrained automotive signal paths where low capacitance (14–17 pF), AEC-Q101 qualification, and common-cathode dual-diode topology are required to maintain signal integrity and meet ISO 7637-3 pulse immunity.

Technical Context

This dual-diode ESD protector uses a common-cathode configuration (pins 1 & 2 as individual cathodes, pin 3 as shared cathode) enabling independent protection of two differential or single-ended IVN lines without cross-coupling. Its bidirectional clamping behavior is defined by V_BR = 28–38 V and symmetrical TLP response with dynamic resistance R_dyn = 0.2 Ω.

It operates across –55 °C to +150 °C ambient, supports 8/20 µs surge pulses up to 3 A, and delivers sub-1 nA reverse leakage at 27 V - critical for preserving low-power wake-up functionality in always-on vehicle networks. Capacitance remains stable (<17 pF) at 0 V bias, minimizing signal distortion on high-speed buses like CAN FD.

Key Specifications

Pinout & Package

SOT323 (SC-70) plastic surface-mount package: 3-terminal, 2 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch, optimized for automated placement and reflow soldering on dense automotive PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NUP2114, PESD2IVN27-U reduces component count by 50%, cuts capacitance by 50%, and provides tighter clamping (36 V vs. ~42 V), making it superior for CAN FD and SENT. VEML6030X01 is not an ESD protector and must be disregarded in selection.

Availability

PESD2IVN27-U is available at Aetrix Electronics and suitable for automotive infotainment head units, electric power steering ECUs, and battery management systems requiring stable component supply with full AEC-Q101 traceability and PPAP documentation support.

Supply support for PESD2IVN27-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 infrastructure and manufacturing scale.

This device belongs to Nexperia's Automotive ESD Protection portfolio, engineered specifically for in-vehicle network resilience - balancing ultra-low capacitance, AEC-Q101 compliance, and common-cathode dual-channel integration to replace discrete TVS arrays in space-constrained ECUs.

FAQ

What is the correct PCB layout practice for PESD2IVN27-U to ensure optimal ESD performance?

Place the device within 2 mm of the protected connector pin, route protected traces directly to pins 1 and 2 with minimum loop area, connect pin 3 to a solid ground plane using ≥2 vias, and avoid routing unprotected signals parallel to protected lines. This minimizes inductance in the transient return path, ensuring clamping occurs before voltage overshoot exceeds downstream IC limits.

Does PESD2IVN27-U support bidirectional signal lines like CAN differential pairs?

Yes - its common-cathode dual-diode structure provides symmetrical clamping for both polarities on each line. When used across CANH and CANL (each tied to pins 1 and 2, with pin 3 grounded), it protects against common-mode and differential ESD events without interfering with DC bias or signal swing, validated per ISO 11898-2 physical layer requirements.

How does the 0.2 Ω dynamic resistance impact real-world transient suppression?

A 0.2 Ω R_dyn means that during a 3 A ESD pulse, only 0.6 V develops across the diode itself - contributing directly to the low 36 V clamping voltage. This minimizes voltage overshoot seen by downstream transceivers, reducing risk of oxide breakdown in 3.3 V or 5 V interface IO cells, especially critical for modern low-voltage automotive MCUs.

Is PESD2IVN27-U compatible with lead-free reflow profiles and wave soldering?

Yes - Nexperia specifies full compatibility with JEDEC J-STD-020D reflow profiles (peak 260 °C) and wave soldering per Figure 15 in the datasheet. The SOT323 package uses matte tin terminations, and the recommended solder land pattern (2.65 mm × 2.35 mm with 0.6 mm pad width) ensures reliable wetting and void-free joints in high-volume automotive assembly.