AH3369Q-SA-7 Equivalent & Substitute Parts

Part Overview

The AH3369Q-SA-7 is a unipolar Hall effect magnetic switch manufactured by Diodes Incorporated in SOT-23-3 surface mount packaging. This digital switch operates with open drain output and is qualified to AEC-Q100 automotive standards. The part is currently in Last Time Buy status, making identification of equivalent alternatives necessary for design continuity and long-term supply planning.

Substiute Parts

AH3369Q-SA-7

Diodes IncorporatedIn Stock: 4490AH3369Q-SA-7 Datasheet

Current PartRFQ

AH3329Q-SA-7

Diodes IncorporatedIn Stock: 791AH3329Q-SA-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The AH3329Q-SA-7 qualifies as a direct substitute based on the following alignment of critical parameters:

Electrical Compatibility: Both parts operate across the identical supply voltage range (3V ~ 28V), maintain the same maximum supply current (4mA), and deliver equivalent maximum output current (60mA). Both employ open drain output architecture.

Functional Equivalence: Both are unipolar Hall effect switches with south pole polarization, identical operating temperature range (-40°C ~ 150°C), and the same SOT-23-3 package footprint.

Mechanical Compatibility: Identical package designation (TO-236-3, SC-59, SOT-23-3) ensures direct PCB layout compatibility without redesign.

Compliance & Standards: Both maintain ROHS3 compliance and REACH unaffected status, supporting equivalent regulatory requirements.

Sensing Range Variance: The AH3329Q-SA-7 specifies 20mT trip and 12.5mT release thresholds compared to the AH3369Q-SA-7's 17.5mT trip and 1mT release. This difference reflects distinct magnetic sensitivity profiles suitable for different application requirements within the same product category.

Parameter Comparison

Engineering Selection Recommendations

The AH3329Q-SA-7 is the qualified substitute for the AH3369Q-SA-7. Selection between these parts depends on application-specific magnetic sensitivity requirements:

For AH3369Q-SA-7 Applications: Use AH3329Q-SA-7 when the original part's 17.5mT trip threshold and 1mT release hysteresis are functionally acceptable within system tolerances. The substitute's higher trip threshold (20mT) and increased hysteresis (12.5mT) may require magnetic field geometry evaluation in proximity-sensing applications.

Product Status Consideration: The AH3369Q-SA-7 is Last Time Buy status. The AH3329Q-SA-7 maintains Active status, providing extended availability for new designs and ongoing production requirements.

Compliance Assurance: Both parts satisfy automotive-grade requirements through AEC-Q100 qualification and ROHS3 compliance, supporting equivalent regulatory and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the AH3329Q-SA-7 directly replace the AH3369Q-SA-7 without PCB modification?

A: Yes. Both parts share identical SOT-23-3 package geometry (TO-236-3, SC-59 designations), enabling direct footprint compatibility without PCB redesign.

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

A: The sensing range differs. The AH3369Q-SA-7 operates at 17.5mT trip with 1mT release, while the AH3329Q-SA-7 operates at 20mT trip with 12.5mT release. Both are south pole unipolar switches with identical electrical ratings and temperature ranges.

Q: Are both parts automotive qualified?

A: The AH3369Q-SA-7 carries AEC-Q100 automotive qualification. The AH3329Q-SA-7 is manufactured by the same supplier with equivalent compliance certifications (ROHS3, REACH unaffected).

Q: Why is the AH3369Q-SA-7 in Last Time Buy status?

A: Last Time Buy status indicates the manufacturer is discontinuing this specific part number. The AH3329Q-SA-7 remains in Active status, providing continuity for ongoing supply and new designs.

Q: Do both parts require identical circuit design considerations?

A: Both parts operate across 3V to 28V supply voltage with 4mA maximum supply current and 60mA maximum output current. Circuit design remains compatible. Magnetic field positioning may require adjustment due to the different trip thresholds.

Q: What packaging formats are available for these parts?

A: The AH3369Q-SA-7 is supplied in Cut Tape (CT) and Digi-Reel format. The AH3329Q-SA-7 is supplied in Tape & Reel (TR) format. Both use identical SOT-23-3 component packaging.