Nexperia USA Inc. BAW56QAZ

Overview

BAW56QA from Nexperia is a dual common-anode high-speed switching diode in a DFN1010D-3 (SOT1215) package, designed for space-constrained automotive and industrial signal routing. It delivers trr ≤ 4 ns reverse recovery time, VR = 90 V maximum reverse voltage, and IF = 310 mA per diode at 25 °C - enabling fast edge transitions in digital logic interfaces and power rail clamping.

For engineers reviewing the BAW56QA datasheet, BAW56QA pinout, BAW56QA application, or BAW56QA equivalent, this device is selected for high-frequency switching nodes where low capacitance (Cd ≤ 2 pF), AEC-Q101 qualification, and ultra-thin 0.37 mm profile are critical to PCB stack-up and EMI performance in ADAS sensor modules and motor control feedback paths.

Technical Context

The BAW56QA integrates two independent silicon switching diodes sharing a single anode terminal, forming a compact dual-diode configuration optimized for bidirectional signal steering or redundant path selection. Its junction design achieves trr ≤ 4 ns under IF = 10 mA / IR = 10 mA test conditions with RL = 100 Ω, supporting >100 MHz digital signal integrity in level-shifting circuits.

Thermal performance is defined by Rth(j-a) = 385 K/W on standard FR4 and Rth(j-sp) = 230 K/W with enhanced cathode pad layout, allowing sustained operation up to Tj = 150 °C. The device's low VF = 1.25 V at IF = 150 mA and IR ≤ 0.5 µA at VR = 80 V ensures minimal conduction loss and leakage in always-on bias networks.

Key Specifications

Pinout & Package

BAW56QA uses the DFN1010D-3 (SOT1215) leadless plastic package: 1.1 × 1.0 × 0.37 mm body with visible and solderable side pads, optimized for AOI-compatible reflow assembly and thermal dissipation via cathode pads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual common-anode high-speed switching diode applications.

Compared with BAV99W and PMEG3010CPA, BAW56QA uniquely combines AEC-Q101 compliance, 0.37 mm height, and true dual-common-anode topology - making it irreplaceable in space-limited automotive signal conditioning where simultaneous high-speed clamping on two paths is required.

Availability

BAW56QA is available at Aetrix Electronics and suitable for automotive CAN bus protection, high-speed logic level translation, and motor control feedback clamping requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BAW56QA 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, reliability, and miniaturization for automotive, industrial, and consumer markets.

BAW56QA belongs to Nexperia's AEC-Q101-qualified high-speed switching diode product line, engineered specifically for signal integrity preservation in automotive networking and power management subsystems where speed, size, and qualification are non-negotiable.

FAQ

Is BAW56QA suitable for bidirectional ESD protection on differential pairs?

Yes - its dual common-anode structure allows symmetric clamping of both lines to a shared reference (e.g., 3.3 V or 5 V rail) with matched trr ≤ 4 ns and Cd ≤ 2 pF, ensuring balanced transient response and minimal skew in USB 2.0 or RS-485 interfaces.

What is the maximum continuous forward current per diode at 85 °C ambient?

Per the derating curve (Figure 2), the maximum continuous forward current per diode drops to approximately 220 mA at Tamb = 85 °C on standard FR4 PCB, based on linear interpolation from 310 mA at 25 °C and 0 mA at 150 °C junction limit.

Can BAW56QA be used in place of a single discrete diode in a simple rectifier circuit?

No - BAW56QA is a dual-diode device with shared anode; using only one cathode ignores half the die and risks thermal imbalance. For single-diode applications, select BAW56 (single version) or BAV70; BAW56QA is intended for dual-path functions like steering or clamping.

Does the DFN1010D-3 package require special stencil design for reflow soldering?

Yes - the SOT1215 footprint requires 0.35 mm wide solder lands with 0.45 mm spacing (per Figure 13), and solder paste apertures must match the visible side-pad geometry to ensure void-free joints and AOI visibility; standard 0.5 mm pitch stencils are insufficient.