AH173-PL-B-A Equivalent & Substitute Parts

Part Overview

The AH173-PL-B-A is a digital switch latch magnetic sensor utilizing Hall Effect technology, manufactured by Diodes Incorporated. This component operates as an open collector output device with south pole polarization, designed for applications requiring latching magnetic switching functionality. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure long-term component availability for new production and field replacements.

Substiute Parts

AH173-PL-B-A

Diodes IncorporatedIn Stock: 1178AH173-PL-B-A Datasheet

Current PartRFQ

AH173-PG-B-A

Diodes IncorporatedIn Stock: 1675AH173-PG-B-A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AH173-PL-B-A is determined by strict equivalence across the following critical parameters:

• Technology & Function: Hall Effect latch operation with identical switching behavior
• Electrical Specifications: Supply voltage range (3V ~ 20V), maximum supply current (6mA), maximum output current (25mA), and open collector output configuration
• Magnetic Characteristics: South pole polarization with identical sensing range (6mT trip, -6mT release)
• Environmental Ratings: Operating temperature range (-40°C ~ 125°C), RoHS3 compliance, and MSL rating
• Physical Form Factor: 3-SIP through-hole package configuration

The AH173-PG-B-A meets all these criteria as an active product from the same manufacturer, differing only in packaging format (bulk versus tape/reel) and product status (active versus obsolete).

Parameter Comparison

Engineering Selection Recommendations

The AH173-PG-B-A is the direct functional equivalent of the AH173-PL-B-A. Both components share identical electrical, magnetic, and environmental specifications. The primary distinction is product status: AH173-PL-B-A is obsolete while AH173-PG-B-A maintains active status with Diodes Incorporated.

For new designs and ongoing production, AH173-PG-B-A is the appropriate selection. Both parts maintain ROHS3 compliance and identical MSL ratings, ensuring regulatory and environmental compatibility. The packaging difference (bulk versus standard packaging) does not affect electrical or mechanical performance and is determined by procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can AH173-PG-B-A be used as a direct replacement for AH173-PL-B-A in existing designs?

A: Yes. All electrical specifications, magnetic characteristics, operating temperature range, and package form factor are identical. No circuit modifications are required.

Q: What is the difference between these two part numbers?

A: The primary difference is product status (obsolete versus active) and packaging format. AH173-PG-B-A is the active production equivalent manufactured by Diodes Incorporated.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical RoHS3 compliance status and MSL rating of 1 (Unlimited).

Q: Does the 3-SIP package remain the same for both parts?

A: Yes. Both components use the 3-SIP through-hole package configuration with identical pinout and mechanical dimensions.

Q: What is the supply voltage compatibility?

A: Both parts operate across the identical supply voltage range of 3V to 20V, with maximum supply current of 6mA and maximum output current of 25mA.