Diodes Incorporated AH3563Q-P-A

Overview

AH3563Q-P-A from Diodes Incorporated is an AEC-Q100 Grade 0 qualified omnipolar Hall-effect switch designed for automotive proximity detection. It features ±30 G switch point (B_OP), ±20 G release point (B_RP), 3 V to 28 V operating voltage, -40°C to +150°C temperature range, and open-drain output - deployed in seatbelt latch sensing, door open/close detection, and gear position feedback systems.

For engineers reviewing the AH3563Q-P-A datasheet, AH3563Q-P-A pinout, AH3563Q-P-A application, or AH3563Q-P-A equivalent, key selection criteria include magnetic sensitivity tolerance over temperature, reverse polarity protection up to 32 V, ESD robustness (8 kV HBM), and SIP-3 package compatibility with high-vibration automotive PCB layouts.

Technical Context

The AH3563Q-P-A integrates a Hall plate, voltage regulator, dynamic offset cancellation circuitry, and open-drain output stage in a single die. Its omnipolar operation responds to either North or South pole magnetic fields, eliminating need for polarity-specific magnet orientation during assembly.

Internal clamping diodes protect input and output terminals against transients; reverse polarity protection sustains operation down to -32 V. The device maintains B_OP/B_RP drift within ±1.5 G over full temperature and supply range, enabling reliable switching in engine bay and transmission control modules.

Key Specifications

Pinout & Package

Package: SIP-3 (Single In-line Package, 3-pin, lead pitch 2.54 mm), RoHS-compliant, surface-mount compatible with wave or selective soldering.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar omnipolar Hall switch applications.

Compared with US1881EUA-ABA-000-RE and A1174LUA-T, the AH3563Q-P-A delivers superior thermal margin, reverse polarity resilience, and AEC-Q100 validation - making it the only choice for transmission, engine, or chassis proximity sensing where functional safety and long-term reliability are mandatory.

Availability

AH3563Q-P-A is available at Aetrix Electronics and suitable for seatbelt detection, door position monitoring, and transmission gear sensing requiring stable component supply across automotive production lifecycles.

Supply support for AH3563Q-P-A 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and Europe.

The AH356xQ series belongs to Diodes' automotive Hall-effect sensor product line, engineered specifically for contactless position and proximity sensing in harsh environments where AEC-Q100 compliance and parametric stability are non-negotiable.

FAQ

What is the maximum allowable supply voltage transient for AH3563Q-P-A?

The AH3563Q-P-A supports continuous operation up to 28 V and withstands reverse polarity transients down to -32 V. It is not rated for positive transients beyond 28 V; external clamping is required for load-dump events exceeding this level per ISO 7637-2 Pulse 5a.

Does AH3563Q-P-A require an external pull-up resistor on the output pin?

Yes - the AH3563Q-P-A features an open-drain output that must be pulled up to a logic-compatible voltage (e.g., 3.3 V or 5 V) via an external resistor. Typical values range from 1 kΩ to 10 kΩ depending on rise time and bus capacitance requirements.

Can AH3563Q-P-A replace AH3562Q-P-A in existing designs?

Yes, with functional trade-offs: AH3563Q-P-A has higher sensitivity (±30 G vs. ±20 G B_OP) and wider hysteresis (10 G vs. 10 G same, but tighter tolerance). Layout and biasing remain identical; however, magnet strength or air gap may need adjustment to avoid premature actuation.

Is the SIP-3 package of AH3563Q-P-A compatible with automated optical inspection (AOI)?

Yes - the SIP-3 package uses gull-wing leads with 2.54 mm pitch and coplanarity ≤0.1 mm, meeting IPC-A-610 Class 3 requirements for AOI. Solder paste stencil design should follow Diodes' recommended land pattern (0.9 mm pad width, 2.0 mm length) for optimal wetting and void control.