AH3563Q-P-B Equivalent & Substitute Parts

Part Overview

The AH3563Q-P-B is an omnipolar Hall Effect magnetic switch manufactured by Diodes Incorporated, designed for automotive-grade applications requiring digital switching based on magnetic field detection. This component operates across a wide supply voltage range (3V to 28V) with open drain output configuration and temperature compensation across -40°C to 150°C. The part is currently in Last Time Buy status, making identification of suitable substitute components essential for ongoing design support and procurement planning.

Substiute Parts

AH3563Q-P-B

Diodes IncorporatedIn Stock: 1518AH3563Q-P-B Datasheet

Current PartRFQ

AH3523Q-P-B

Diodes IncorporatedIn Stock: 687AH3523Q-P-B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AH3563Q-P-B is determined by strict alignment of the following critical parameters:

Mandatory Matching Criteria:

• Function: Omnipolar Switch (detects both North and South pole magnetic fields)
• Technology: Hall Effect
• Output Type: Open Drain
• Package / Case: 3-SIP (physical and electrical compatibility)
• Voltage - Supply Range: 3V to 28V (operational envelope)
• Operating Temperature Range: -40°C to 150°C
• Mounting Type: Through Hole

Allowable Parameter Variations: Substitute parts may differ in the following parameters while maintaining functional equivalence:

• Sensing Range (Trip/Release thresholds): Variations permitted within application tolerance
• Current - Supply (Max): Lower values acceptable if application current draw is within limits
• Current - Output (Max): Lower values acceptable if load current requirements are met
• Features: Temperature compensation presence may vary

The AH3523Q-P-B meets all mandatory matching criteria and is classified as a direct substitute for the AH3563Q-P-B.

Parameter Comparison

Engineering Selection Recommendations

The AH3523Q-P-B is an active production substitute for the AH3563Q-P-B. Both components are manufactured by Diodes Incorporated and maintain identical core specifications for omnipolar Hall Effect switching with 3-SIP through-hole packaging.

Selection Basis:

The AH3523Q-P-B is suitable for applications currently using the AH3563Q-P-B provided that:

1. Output Current Requirements: The application load current does not exceed 30mA maximum output current. The AH3563Q-P-B supports 55mA; applications requiring higher output current must retain the original part number.

2. Supply Current Budget: The application power supply can accommodate the 3mA maximum supply current specification. The AH3563Q-P-B draws up to 4mA.

3. Release Threshold Tolerance: The application can function with a release threshold of ±0.5mT instead of ±4.6mT. This represents a tighter hysteresis window and may affect switching behavior in marginal magnetic field conditions.

4. Compliance Requirements: Both parts maintain AEC-Q100 automotive qualification, ROHS3 compliance, and REACH unaffected status, ensuring regulatory equivalence for automotive applications.

The AH3523Q-P-B is currently in Active product status, providing long-term availability and supply continuity compared to the Last Time Buy status of the AH3563Q-P-B.

Frequently Asked Questions (FAQ)

Q: Can the AH3523Q-P-B directly replace the AH3563Q-P-B in existing designs?

A: Direct replacement is possible if the application output current requirement does not exceed 30mA and the release threshold of ±0.5mT is compatible with the magnetic field environment. Both parts share identical package, voltage range, temperature range, and Hall Effect omnipolar switching function.

Q: What is the primary difference between these two parts?

A: The AH3523Q-P-B has lower maximum output current (30mA vs. 55mA), lower maximum supply current (3mA vs. 4mA), and a tighter release threshold (±0.5mT vs. ±4.6mT). The trip threshold remains identical at ±4.5mT for both parts.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the AH3563Q-P-B and AH3523Q-P-B carry AEC-Q100 automotive qualification and are ROHS3 compliant, meeting automotive industry standards.

Q: What does the 3-SIP package designation mean?

A: 3-SIP refers to a 3-pin Single In-line Package with through-hole mounting. Both parts use identical physical packaging, ensuring mechanical compatibility in PCB designs.

Q: Why is the AH3563Q-P-B in Last Time Buy status?

A: Last Time Buy status indicates the manufacturer is discontinuing this part number. The AH3523Q-P-B, in Active status, is the recommended long-term alternative for new designs and ongoing procurement.

Q: How do the sensing ranges differ between these parts?

A: Both parts have identical trip thresholds at ±4.5mT. The release threshold differs: AH3563Q-P-B releases at ±4.6mT, while AH3523Q-P-B releases at ±0.5mT. This affects the hysteresis window and switching behavior in weak magnetic fields.

Q: Can I use the AH3523Q-P-B if my application requires 40mA output current?

A: No. The AH3523Q-P-B maximum output current is 30mA. Applications requiring 40mA output current must use the AH3563Q-P-B or identify an alternative part with higher output current rating.