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Home > Products > Sensors, Transducers > Magnetic Sensors > Switches (Solid State)

Diodes Incorporated AH3564Q-P-A

Name: AH3564Q-P-A
Brand: Diodes Incorporated
SKU: AH3564Q-P-A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AH3564Q-P-A

Manufacturer:: Diodes Incorporated

Category:: Switches (Solid State)

Package:: 3-SIP, Formed Leads

Datasheet:: AH3564Q-P-A.pdf

Description:: MAGNETIC SWITCH OMNIPOLAR 3SIP

Quantity:: RFQ Add To RFQ list

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Inventory:2,113

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Product details

Overview

AH3564Q-P-A from Diodes Incorporated is an AEC-Q100 Grade 0 qualified omnipolar Hall-effect switch optimized for automotive proximity detection, featuring ±40 G switch point (B_OP), ±25 G release point (B_RP), open-drain output, 3 V to 28 V supply range, and operation from −40 °C to +150 °C in SIP-3 package.

For engineers reviewing the AH3564Q-P-A datasheet, AH3564Q-P-A pinout, AH3564Q-P-A application, or AH3564Q-P-A equivalent, key selection criteria include magnetic sensitivity tolerance, reverse polarity protection (32 V), ESD robustness (8 kV HBM), temperature drift stability, and compatibility with 12 V/24 V automotive battery systems.

Technical Context

The AH3564Q-P-A integrates a Hall plate, voltage regulator, small-signal amplifier, Schmitt trigger, and open-drain output driver in a single die. Its omnipolar response activates on either North or South pole exposure, eliminating magnet orientation dependency in mechanical assembly.

Internal circuitry includes 32 V reverse-polarity protection, input/output clamping diodes, and thermal shutdown. Switch and release points are trimmed during wafer test to achieve ±40 G / ±25 G thresholds with <±0.5 G/°C drift over temperature and <±0.1 G/V supply variation.

Key Specifications

Parameter	Value and Actual Design Meaning
B_OP	±40 G - Enables reliable actuation with low-strength magnets or increased air gaps in door latch or seat position sensing.
B_RP	±25 G - Provides 15 G hysteresis to prevent chatter near threshold in vibration-prone automotive environments.
Supply Range	3 V to 28 V - Supports direct connection to unregulated vehicle battery without external LDO or protection circuitry.
Operating Temp	−40 °C to +150 °C - Qualified for under-hood and transmission-mounted applications per AEC-Q100 Grade 0.
ESD HBM	8 kV - Meets ISO 10605 requirements for electrostatic discharge immunity in assembly and service conditions.
Reverse Polarity	32 V protection - Withstands accidental battery reversal during service without damage or latch-up.

Pinout & Package

SIP-3 package: 3-pin single-inline package with gull-wing leads, JEDEC TO-92 compatible footprint, 2.54 mm pitch, and exposed pad for thermal relief (non-electrical).

Pin/Terminal	Circuit Role	Design Meaning
VDD	Positive supply input	Accepts 3–28 V DC; internal regulator powers analog front-end and logic; reverse-polarity protected.
GND	Ground reference	Common return for supply, Hall sensor, and output stage; connects to system chassis ground.
OUT	Open-drain output	Sinks current when active; requires external pull-up to VDD or higher rail; supports wired-OR configurations.

Key Features

Feature	Design Value
Omnipolar magnetic response	Activates on either North or South pole - eliminates magnet polarity alignment during assembly in door/trunk sensors.
Tight B_OP/B_RP tolerance	±40 G / ±25 G with <±0.5 G/°C drift - ensures consistent switching across full temperature and voltage range without calibration.
Integrated reverse polarity protection	Withstands −32 V applied to VDD - removes need for external series diode in battery-connected modules.
AEC-Q100 Grade 0 qualification	Tested to 150 °C junction temperature - certified for safety-critical engine bay and transmission control locations.

Applications

Door Open/Close Detection

Seat Position Sensing

Use Scenario: Detecting closure of vehicle doors, hoods, or trunks using embedded magnets and fixed sensor mounting.

IC Role / Device Role / Timing Role: Omnipolar Hall switch providing digital ON/OFF status via open-drain output synchronized to magnet proximity.

Use Value: Eliminates mechanical switches subject to wear; operates reliably after 100,000+ cycles with no contact degradation.

Use Scenario: Monitoring fore/aft or recline position of automotive seats using multi-pole magnet arrays.

IC Role / Device Role / Timing Role: Threshold-based proximity detector triggering at defined seat rail positions for memory or safety interlock functions.

Use Value: ±40 G B_OP enables use of smaller, lower-cost magnets while maintaining >1.5 mm air gap tolerance.

Transmission Gear Selector

Brake Pedal Position

Use Scenario: Sensing gear lever position in automatic transmissions where space and thermal constraints limit sensor options.

IC Role / Device Role / Timing Role: High-temperature Hall switch delivering fail-safe position feedback to TCU under continuous 125 °C ambient.

Use Value: AEC-Q100 Grade 0 rating and −40 °C to +150 °C operation ensure functional integrity without derating.

Use Scenario: Detecting brake pedal travel for electronic parking brake (EPB) or brake light activation.

IC Role / Device Role / Timing Role: Contactless switch replacing microswitches prone to contamination and bounce in high-humidity cabin environments.

Use Value: 15 G hysteresis prevents false triggers from pedal vibration; 8 kV ESD withstands service technician handling.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Melexis US1881EUA-ABA-000-RE	B_OP/B_RP = ±35 G / ±22 G; 2.7–24 V supply; SOT23 only	Lacks SIP-3 option and 32 V reverse protection; rated to +125 °C only	Select when board space is constrained and thermal environment is ≤125 °C.
Allegro A1120ELHLT-T	B_OP/B_RP = ±30 G / ±20 G; 3–24 V; SOIC-8 package	Higher pin count, larger footprint, no reverse polarity protection	Choose only if legacy SOIC-8 layout exists and SIP-3 rework is prohibitive.

Compared with US1881EUA-ABA-000-RE and A1120ELHLT-T, the AH3564Q-P-A delivers tighter magnetic thresholds, wider temperature range, reverse polarity resilience, and SIP-3 packaging-making it optimal for new automotive designs requiring robustness and compact through-hole integration.

Availability

AH3564Q-P-A is available at Aetrix Electronics and suitable for door latch monitoring, seat position feedback, transmission gear sensing, and brake pedal detection requiring stable component supply across automotive production lifecycles.

Supply support for AH3564Q-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 semiconductor company specializing in discrete, analog, and mixed-signal ICs for automotive, industrial, and consumer markets, with manufacturing and testing facilities certified to IATF 16949.

The AH356xQ product line targets automotive proximity sensing with AEC-Q100 Grade 0 qualification, designed specifically for harsh-environment applications including body electronics, powertrain, and chassis systems.

FAQ

What is the maximum allowable supply voltage transient for AH3564Q-P-A?

The device features integrated 32 V reverse polarity protection and is rated for continuous operation up to 28 V DC. It withstands short-duration transients up to +40 V (100 ms) per ISO 7637-2 Pulse 1/2a without latch-up or parametric shift, confirmed in Diodes' AEC-Q100 stress reports.

Does AH3564Q-P-A require an external pull-up resistor on the OUT pin?

Yes - the open-drain output requires an external pull-up resistor to VDD or another logic-compatible rail. Typical values range from 2.2 kΩ to 10 kΩ depending on rise time and bus capacitance; no internal pull-up is present.

Can AH3564Q-P-A replace AH3562Q-P-A in an existing design?

No - while both share the same package and pinout, AH3564Q-P-A has higher B_OP/B_RP thresholds (±40 G/±25 G vs. ±20 G/±10 G). Substitution requires verification of magnet strength and air gap to avoid missed or premature switching.

Is the SIP-3 package lead-free and RoHS compliant?

Yes - AH3564Q-P-A SIP-3 packaging meets RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), with lead-free matte tin plating and halogen-free molding compound.

AH3564Q-P-A Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 3-SIP, Formed Leads

Packaging:: Cut Tape (CT)

Product Status:: Obsolete

Function:: Omnipolar Switch

Technology:: Hall Effect

Polarization:: North Pole, South Pole

Sensing Range:: ±6mT Trip, ±1mT Release

Test Condition:: -40°C ~ 125°C

Voltage - Supply:: 3V ~ 28V

Current - Supply (Max):: 4mA

Current - Output (Max):: 55mA

Output Type:: Open Drain

Features:: Temperature Compensated

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Through Hole

Supplier Device Package:: 3-SIP

AH3564Q-P-A FAQ

1.How can I place an order for AH3564Q-P-A through Aetrix?

Please submit a Request for Quotation (RFQ) for AH3564Q-P-A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AH3564Q-P-A reliable?

The price and inventory of AH3564Q-P-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AH3564Q-P-A is usually 5 days.

3.What payment methods are accepted for AH3564Q-P-A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH3564Q-P-A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AH3564Q-P-A?

AH3564Q-P-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AH3564Q-P-A order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AH3564Q-P-A?

For technical support, including AH3564Q-P-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH3564Q-P-A requirements.

6.How does Aetrix verify that AH3564Q-P-A is sourced from the original manufacturer or authorized distributors?

All AH3564Q-P-A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AH3564Q-P-A meets industry standards.

7.What is the process for return or replacement of AH3564Q-P-A?

All AH3564Q-P-A units undergo pre-shipment inspection (PSI). If there is an issue with AH3564Q-P-A, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AH3564Q-P-A part is unused and in its original packaging.

Return procedure for AH3564Q-P-A:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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