Nexperia USA Inc. PESD2CANFD27VQC-QZ

Overview

PESD2CANFD27VQC-QZ from Nexperia is a dual-channel automotive-grade ESD protection diode in DFN1412D-3 (SOT8009) package, designed to safeguard CAN-FD and CAN bus lines against ±20 kV IEC 61000-4-2 and ISO 10605 transients. It features 27 V reverse standoff voltage, 33 V clamping at 1 A, 6 pF capacitance, and AEC-Q101 qualification for under-hood vehicle networks.

For engineers reviewing the PESD2CANFD27VQC-QZ datasheet, PESD2CANFD27VQC-QZ pinout, PESD2CANFD27VQC-QZ application, or PESD2CANFD27VQC-QZ equivalent, key selection criteria include bidirectional clamping performance, low capacitance for high-speed bus integrity, side-wettable flank compatibility with automated optical inspection (AOI), and validated operation across −55 °C to +150 °C ambient range.

Technical Context

This device implements a common-cathode dual-diode architecture with independent cathodes (K1, K2) tied to a shared cathode terminal (CC), enabling symmetrical transient suppression on two differential bus lines without cross-talk. Its low dynamic resistance (0.8 Ω) and fast response (<1 ns rise time per IEC 61000-4-2) ensure effective clamping during sub-nanosecond ESD events.

The DFN1412D-3 package integrates side-wettable flanks for solder joint quality verification via AOI, while its 1.4 mm × 1.2 mm footprint supports high-density routing near connectors. Thermal design leverages the 150 °C maximum junction temperature and relative peak pulse power derating shown in Fig. 7 of the datasheet.

Key Specifications

Pinout & Package

DFN1412D-3 (SOT8009) is a 3-terminal, leadless plastic package measuring 1.4 mm × 1.2 mm × 0.48 mm with 0.8 mm pitch and side-wettable flanks for AOI-compatible reflow soldering.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NUF2221MUTAG and VEML6030X01, PESD2CANFD27VQC-QZ delivers superior high-speed bus compatibility via 6 pF capacitance and guaranteed differential matching, while its monolithic common-cathode structure reduces component count and improves layout efficiency over dual-single solutions.

Availability

PESD2CANFD27VQC-QZ is available at Aetrix Electronics and suitable for automotive CAN-FD gateways, ADAS domain controllers, and powertrain ECUs requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for PESD2CANFD27VQC-QZ 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 logic, analog, and discrete components for automotive, industrial, and consumer markets.

This device belongs to Nexperia's Automotive ESD Protection portfolio, engineered specifically for robust transient suppression on high-speed in-vehicle networks including CAN-FD, CAN, FlexRay, and SENT-prioritizing low capacitance, AEC-Q101 compliance, and AOI-friendly packaging.

FAQ

What is the maximum operating temperature for PESD2CANFD27VQC-QZ?

The device is rated for ambient temperatures from −55 °C to +150 °C and junction temperatures up to 150 °C. Its thermal performance follows the relative peak pulse power derating curve in Figure 7 of the datasheet, where power capability drops to ~40% at 125 °C junction temperature. This makes it suitable for under-hood applications including engine control units and transmission control modules.

Can PESD2CANFD27VQC-QZ protect both CAN-H and CAN-L simultaneously?

Yes-it uses a common-cathode dual-diode configuration where Pin 1 (K1) connects to CAN-H, Pin 2 (K2) to CAN-L, and Pin 3 (CC) to ground. During a positive transient on CAN-H, current flows from K1 to CC; during a negative transient on CAN-L, current flows from CC to K2. This architecture provides matched, independent clamping for both lines without interaction.

Is the 6 pF capacitance measured differentially or line-to-ground?

The 6 pF value is measured line-to-ground: Cd = 5.2–6 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 (ΔCd/Cd ≤ 0.5 %) is specified to ensure balanced loading on differential pairs, preserving signal symmetry on CAN-FD and FlexRay buses.

Does PESD2CANFD27VQC-QZ require external series impedance for optimal ESD performance?

No external series resistor is required for basic ESD clamping. However, the datasheet recommends placing the device within 1 mm of the protected connector and using short, direct traces to ground to minimize inductance. Adding a small ferrite bead or common-mode choke (as shown in Figure 11) enhances surge immunity but is not needed for IEC 61000-4-2 compliance alone.