AH3368Q-P-B Equivalent & Substitute Parts

Part Overview

The AH3368Q-P-B is a unipolar Hall Effect magnetic switch manufactured by Diodes Incorporated, designed for automotive-grade applications requiring digital switching based on magnetic field detection. This component operates as an open drain switch with a sensing range of 15mT trip and 12.5mT release thresholds. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this sensor.

Substiute Parts

AH3368Q-P-B

Diodes IncorporatedIn Stock: 2842AH3368Q-P-B Datasheet

Current PartRFQ

AH3328Q-P-B

Diodes IncorporatedIn Stock: 1075AH3328Q-P-B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AH3368Q-P-B is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Technology: Hall Effect unipolar switch
• Polarization: South Pole detection
• Output Type: Open Drain
• Voltage Supply Range: 3V ~ 28V
• Current Output (Max): 60mA
• Operating Temperature Range: -40°C ~ 150°C
• Mounting Type: Through Hole
• Package / Case: 3-SIP
• Automotive Grade with AEC-Q100 qualification

Allowable Variation Parameters:

• Sensing Range (Trip/Release thresholds): Minor variations acceptable within application tolerance
• Current Supply (Max): Equivalent or lower consumption acceptable
• Features: Additional features (e.g., Temperature Compensated) do not disqualify substitution

The AH3328Q-P-B qualifies as a direct substitute based on matching all mandatory parameters while offering enhanced temperature compensation as an additional feature.

Parameter Comparison

Engineering Selection Recommendations

The AH3328Q-P-B is the qualified substitute for the AH3368Q-P-B based on the following engineering criteria:

Product Status Alignment: The AH3328Q-P-B maintains Active product status, ensuring continued availability and supply chain support, whereas the AH3368Q-P-B is in Last Time Buy status with limited future procurement options.

Compliance & Certification: Both parts maintain identical automotive-grade qualification (AEC-Q100) and ROHS3 compliance, meeting regulatory requirements for automotive applications.

Electrical & Mechanical Compatibility: The substitute part maintains identical voltage supply range (3V ~ 28V), output current capability (60mA), operating temperature range (-40°C ~ 150°C), and 3-SIP through-hole package configuration, ensuring direct PCB compatibility without layout modifications.

Sensing Threshold Variation: The AH3328Q-P-B exhibits a higher trip threshold (18mT vs. 15mT) and lower release threshold (10.5mT vs. 12.5mT). This variation requires application-level validation to confirm magnetic field strength compatibility within the target system environment.

Enhanced Features: The temperature compensation feature in the AH3328Q-P-B provides improved performance stability across the full operating temperature range, offering a functional advantage over the original part.

Frequently Asked Questions (FAQ)

Q: Can the AH3328Q-P-B be used as a direct drop-in replacement for the AH3368Q-P-B?

A: Yes, from a mechanical and electrical interface perspective. Both parts share identical 3-SIP through-hole packaging, voltage supply range (3V ~ 28V), output current capability (60mA), and operating temperature range (-40°C ~ 150°C). PCB layout and connector compatibility require no modification.

Q: What is the primary difference between these two Hall Effect switches?

A: The primary difference is the magnetic sensing threshold. The AH3368Q-P-B trips at 15mT and releases at 12.5mT, while the AH3328Q-P-B trips at 18mT and releases at 10.5mT. The AH3328Q-P-B also includes temperature compensation for improved threshold stability across temperature variations.

Q: Will the different sensing thresholds affect my application?

A: Threshold differences must be evaluated within your specific magnetic field environment. If your application relies on the exact 15mT trip point of the AH3368Q-P-B, the higher 18mT threshold of the AH3328Q-P-B may require validation. Conversely, if your magnetic field strength exceeds 18mT, the substitute will function identically.

Q: Are both parts automotive-grade?

A: Yes. Both the AH3368Q-P-B and AH3328Q-P-B carry automotive-grade classification with AEC-Q100 qualification, meeting automotive reliability and qualification standards.

Q: What is the supply status difference between these parts?

A: The AH3368Q-P-B is in Last Time Buy status, indicating end-of-life production with limited future availability. The AH3328Q-P-B maintains Active status with ongoing production and supply chain support.

Q: Do both parts have the same output type?

A: Yes. Both parts feature open drain output configuration, requiring external pull-up resistor implementation for logic-level signal generation.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements for automotive and industrial applications.