AH3766Q-P-B Equivalent & Substitute Parts

Part Overview

The AH3766Q-P-B is a magnetic switch latch sensor manufactured by Diodes Incorporated, utilizing Hall Effect technology for digital switching applications. This component operates as an open drain output device with temperature compensation across automotive-grade operating conditions. The part is classified as Last Time Buy, indicating end-of-life status and necessitating identification of active alternative components for ongoing design requirements and production continuity.

Substiute Parts

AH3766Q-P-B

Diodes IncorporatedIn Stock: 2418AH3766Q-P-B Datasheet

Current PartRFQ

AH3726Q-P-B

Diodes IncorporatedIn Stock: 751AH3726Q-P-B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The AH3726Q-P-B qualifies as a substitute based on the following alignment criteria:

Common Electrical Parameters:

• Hall Effect technology platform
• Latch function classification
• Temperature compensation feature
• Through hole mounting configuration
• 3-SIP package compatibility
• Operating temperature range: -40°C ~ 150°C
• Supply current specification: 4mA maximum
• RoHS3 compliance and REACH unaffected status

Substitution Constraints: The AH3726Q-P-B operates as a bipolar switch with dual polarization (North Pole, South Pole) versus the single South Pole polarization of the AH3766Q-P-B. The sensing range differs significantly: ±6mT trip with ±0.5mT release versus 14mT trip with -14mT release. Output type transitions from open drain to digital output. Supply voltage range narrows from 3V ~ 28V to 2.2V ~ 20V. Maximum output current reduces from 60mA to 25mA.

These parameter differences require circuit-level evaluation to confirm functional equivalence within the target application.

Parameter Comparison

Engineering Selection Recommendations

The AH3726Q-P-B is an active product from the same manufacturer, providing supply chain continuity for the end-of-life AH3766Q-P-B. Both components maintain identical operating temperature ranges and supply current specifications, with RoHS3 compliance across both parts.

Selection of the AH3726Q-P-B requires verification of application tolerance to the following parameter deviations: reduced sensing range sensitivity, narrower supply voltage window, lower maximum output current capacity, and output type conversion from open drain to digital. The bipolar polarization capability of the AH3726Q-P-B may provide functional advantages in applications requiring North Pole detection, though this represents a functional expansion rather than direct equivalence.

Frequently Asked Questions (FAQ)

Q: Can the AH3726Q-P-B directly replace the AH3766Q-P-B in existing designs?

A: Direct replacement requires circuit-level compatibility assessment. The AH3726Q-P-B operates within the same temperature and supply current envelope, but differs in sensing range, output type, and maximum output current. Applications operating within the AH3726Q-P-B parameter boundaries may proceed with substitution; applications requiring the full 60mA output current or extended supply voltage range require design modification.

Q: What are the key electrical differences between these parts?

A: The primary differences are sensing range (14mT versus ±6mT), output configuration (open drain versus digital), maximum output current (60mA versus 25mA), and supply voltage range (3V ~ 28V versus 2.2V ~ 20V). Polarization differs from single South Pole to dual North/South Pole capability.

Q: Are both parts qualified to the same automotive standards?

A: The AH3766Q-P-B carries AEC-Q100 automotive qualification. The AH3726Q-P-B grade and qualification status are not specified in the provided data. Automotive applications requiring explicit AEC-Q100 certification should confirm qualification status with the manufacturer.

Q: Do both parts use the same package and mounting configuration?

A: Both components utilize 3-SIP through-hole packaging, providing mechanical and footprint compatibility. PCB layout modifications are not required for package accommodation.

Q: What is the significance of the Last Time Buy status for the AH3766Q-P-B?

A: Last Time Buy designation indicates the manufacturer will no longer produce this component after current inventory depletion. Designs currently using the AH3766Q-P-B must transition to alternative components for long-term production sustainability. The AH3726Q-P-B represents the active alternative within the Diodes Incorporated Hall Effect latch sensor portfolio.