Vishay General Semiconductor - Diodes Division VCAN16A2-03S-E3-08

Overview

VCAN16A2-03S-E3-08 from Vishay Semiconductors is a bidirectional symmetrical (BiSy) dual-line ESD protection diode in SOT-23 package, designed for CAN bus interface protection. It provides ±16 V working voltage range, <0.05 μA reverse leakage, <18.5 pF line capacitance, and ±30 kV IEC 61000-4-2 ESD immunity-enabling robust transient suppression in automotive CAN FD and classical CAN transceiver circuits.

For engineers reviewing the VCAN16A2-03S-E3-08 datasheet, VCAN16A2-03S-E3-08 pinout, VCAN16A2-03S-E3-08 application, or VCAN16A2-03S-E3-08 equivalent, key selection criteria include bidirectional clamping symmetry, sub-18.5 pF capacitance for high-speed signal integrity, AEC-Q101 qualification, SOT-23 footprint compatibility, and dual-line protection for CAN_H/CAN_L pairs.

Technical Context

This device implements a monolithic dual-channel TVS structure with matched breakdown voltages (17.1–20 V) and symmetrical clamping behavior across both lines (pin 1–3 and pin 2–3). Its BiSy architecture ensures identical forward/reverse dynamic impedance and clamping response on CAN_H and CAN_L, preserving differential signaling integrity during ESD events.

It operates within -55 °C to +150 °C junction temperature range and meets AEC-Q101 stress requirements including HBM >8 kV (Class H3B), making it suitable for under-hood automotive CAN nodes. The e3 tin-plated terminations and MSL Level 1 rating support lead-free reflow assembly per J-STD-020.

Key Specifications

Pinout & Package

SOT-23 package (3-pin, standard outline per JEDEC TO-236AB); 9.2 mg weight; UL 94 V-0 molding compound; MSL Level 1; peak reflow temperature 260 °C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMF16CTHE3_A/H and TPD2E001DRYR, the VCAN16A2-03S-E3-08 uniquely delivers bidirectional symmetry, AEC-Q101 qualification, and matched low capacitance optimized specifically for automotive CAN physical layer compliance-making it the preferred choice for production-grade vehicle networks.

Availability

VCAN16A2-03S-E3-08 is available at Aetrix Electronics and suitable for automotive CAN FD transceivers, industrial PLC communication modules, and commercial vehicle telematics systems requiring stable component supply and long-term lifecycle assurance.

Supply support for VCAN16A2-03S-E3-08 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

Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and protection devices for automotive, industrial, and computing markets.

The VCAN series is engineered specifically for CAN bus interface protection, emphasizing low capacitance, bidirectional symmetry, and AEC-Q101 qualification to meet stringent automotive EMC and reliability standards.

FAQ

What is the primary function of the VCAN16A2-03S-E3-08 in a CAN bus system?

The VCAN16A2-03S-E3-08 serves as a bidirectional symmetrical dual-line ESD protection diode for CAN_H and CAN_L signals. It clamps transient voltages-including ±30 kV ESD events-to safe levels below the transceiver's absolute maximum ratings while maintaining signal integrity through matched low capacitance (15–18.5 pF) and tight capacitance matching (≤1 pF difference between lines). This ensures reliable operation in automotive and industrial CAN networks.

Does the VCAN16A2-03S-E3-08 support CAN FD data rates up to 5 Mbps?

Yes, the VCAN16A2-03S-E3-08 supports CAN FD up to 5 Mbps due to its low and matched line capacitance (15–18.5 pF at 0 V, 1 MHz) and symmetrical clamping response. The ≤1 pF capacitance mismatch between CAN_H and CAN_L paths minimizes signal skew, preserving differential timing margins essential for high-speed CAN FD operation. Its 16 V VRWM also aligns with standard 12 V automotive supply rails.

Is the VCAN16A2-03S-E3-08 qualified for automotive applications?

Yes, the VCAN16A2-03S-E3-08 is AEC-Q101 qualified per Class H3B (HBM >8 kV) and rated for -55 °C to +150 °C junction temperature. Its SOT-23 package carries e3 tin plating and MSL Level 1 rating, supporting lead-free reflow assembly in automotive production. These qualifications make the VCAN16A2-03S-E3-08 suitable for engine control, body electronics, and ADAS CAN nodes.

How does the BiSy (bidirectional symmetrical) architecture benefit CAN bus protection?

The BiSy architecture of the VCAN16A2-03S-E3-08 ensures identical clamping voltage, dynamic impedance, and capacitance on both CAN_H and CAN_L lines relative to ground (Pin 3). This symmetry prevents common-mode-to-differential mode conversion during transients, maintains signal balance, and avoids timing skew that could cause bit errors-critical for robust differential signaling in high-speed CAN FD and classical CAN.

What is the recommended PCB layout practice for the VCAN16A2-03S-E3-08?

Place the VCAN16A2-03S-E3-08 as close as possible to the CAN connector, with short, symmetric traces to CAN_H (Pin 1), CAN_L (Pin 2), and system ground (Pin 3). Use a solid ground plane beneath the device and avoid routing other signals near the protection path. Follow Vishay's recommended SOT-23 footprint (Document S8-V-3929.01-009) and ensure Pin 3 has low-inductance connection to chassis or power ground to maximize transient energy shunting efficiency for the VCAN16A2-03S-E3-08.