Nexperia USA Inc. PESD2CANFD27U-QCZ

Overview

PESD2CANFD27U-QC from Nexperia is a dual-channel automotive-grade ESD protection diode in DFN1412D-3 (SOT8009) package, designed for CAN-FD and CAN bus line protection. It delivers 27 V reverse standoff voltage, 34 V clamping at 1 A, 4.0 pF capacitance, 15 kV IEC 61000-4-2 ESD rating, and AEC-Q101 qualification for under-hood vehicle networks.

For engineers reviewing the PESD2CANFD27U-QC datasheet, PESD2CANFD27U-QC pinout, PESD2CANFD27U-QC application, or PESD2CANFD27U-QC equivalent, key selection criteria include low clamping voltage under 8/20 µs surge, matched diode capacitance (<0.5% mismatch), side-wettable flank compatibility with automated optical inspection (AOI), and common-cathode dual-diode topology for bidirectional bus protection.

Technical Context

This device implements a common-cathode dual TVS diode architecture with symmetrical breakdown (28–38 V) and dynamic resistance of 1.3 Ω, enabling fast transient response to ±8 kV ESD pulses per IEC 61000-4-2. Its ultra-low 4.0 pF capacitance ensures minimal signal integrity impact on high-speed CAN-FD (up to 5 Mbps) and SENT lines.

The DFN1412D-3 package features side-wettable flanks for solder joint inspection and supports reflow profiles compliant with JEDEC J-STD-020. Thermal performance is rated for junction temperatures up to 150 °C, validated under AEC-Q101 stress testing including temperature cycling and HTRB.

Key Specifications

Pinout & Package

DFN1412D-3 (SOT8009) is a 3-terminal, leadless, ultra-thin surface-mount package measuring 1.4 mm × 1.2 mm × 0.48 mm with 0.8 mm pitch and side-wettable flanks for automated solder-joint inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NUF2221MUTAG, PESD2CANFD27U-QC provides 1.5 pF lower capacitance, 3 V higher standoff, and full AEC-Q101 qualification-making it uniquely suitable for CAN-FD timing-critical automotive deployments where signal fidelity and qualification compliance are mandatory.

Availability

PESD2CANFD27U-QC is available at Aetrix Electronics and suitable for automotive CAN-FD module design, body electronics ECU production, and ADAS sensor interface development requiring stable component supply across extended product lifecycles.

Supply support for PESD2CANFD27U-QC 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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and mobile markets.

This device belongs to Nexperia's Automotive ESD Protection portfolio, engineered specifically for high-speed in-vehicle network resilience-targeting CAN-FD, CAN, FlexRay, and SENT physical layers with AEC-Q101 validation and side-wettable flank packaging.

FAQ

What is the maximum operating temperature for PESD2CANFD27U-QC?

The device is qualified for junction temperatures up to 150 °C and ambient operating range from –55 °C to +150 °C per AEC-Q101 requirements. Thermal derating begins above 125 °C ambient, with peak pulse power reduced to 80% of rated value at 150 °C junction temperature as shown in Figure 7 of the datasheet.

Can PESD2CANFD27U-QC protect both CANH and CANL simultaneously?

Yes - its common-cathode (CC) pin configuration allows simultaneous bidirectional clamping of both lines. Pin 1 (K1) connects to CANH and pin 2 (K2) to CANL, while pin 3 (CC) ties to system ground or transceiver GND, forming two independent but referenced TVS paths that maintain differential integrity during transients.

Is the 4.0 pF capacitance measured differentially or line-to-ground?

The 4.0 pF value is measured line-to-ground: Cd = 4.0 pF between pin 1 and pin 3, and identically between pin 2 and pin 3, at 1 MHz and –2.5 V reverse bias. Capacitance matching between the two channels is specified at ≤0.5% difference, ensuring balanced loading on differential bus pairs.

Does PESD2CANFD27U-QC require external biasing or series impedance?

No - it operates passively as a clamping diode with no external bias needed. Its 27 V VRWM ensures no conduction during nominal CAN bus voltages (±2.5 V common-mode, ±7 V differential), and the common-cathode architecture eliminates need for discrete ground-return paths or series resistors in standard implementations.