AH173-PL-B-B Equivalent & Substitute Parts

Part Overview

The AH173-PL-B-B is a digital switch latch magnetic sensor utilizing Hall Effect technology, manufactured by Diodes Incorporated. This component functions as an open collector output device designed for magnetic field detection and switching applications. 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 runs and system maintenance.

Substiute Parts

AH173-PL-B-B

Diodes IncorporatedIn Stock: 1999AH173-PL-B-B Datasheet

Current PartRFQ

AH173-PG-B-B

Diodes IncorporatedIn Stock: 6244AH173-PG-B-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Manufacturer and Base Series: Both parts must originate from Diodes Incorporated and share the AH173 base product number
• Functional Characteristics: Identical latch function with Hall Effect technology and south pole polarization
• Electrical Specifications: Matching supply voltage range (3V ~ 20V), supply current maximum (6mA), output current maximum (25mA), and open collector output type
• Sensing Performance: Identical magnetic trip threshold (8mT) and release threshold (-8mT)
• Environmental Ratings: Matching operating temperature range (-40°C ~ 125°C) and moisture sensitivity level (MSL 1)
• Compliance Standards: Both parts must maintain ROHS3 compliance and REACH unaffected status

The AH173-PG-B-B qualifies as a direct substitute based on complete alignment with all specified parameters. The primary distinction is product status (active versus obsolete) and packaging configuration (bulk versus standard).

Parameter Comparison

Engineering Selection Recommendations

The AH173-PG-B-B is the qualified substitute for the obsolete AH173-PL-B-B. Selection of the active alternative is justified on the following engineering grounds:

• Product Status Alignment: The AH173-PG-B-B maintains active product status with Diodes Incorporated, ensuring continued availability, technical support, and manufacturing consistency
• Regulatory Compliance: Both parts maintain identical ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements
• Electrical and Functional Equivalence: Complete parameter alignment across all specified electrical characteristics, sensing thresholds, and output specifications ensures direct functional replacement without circuit modification
• Packaging Compatibility: Both components utilize identical 3-SIP through-hole packaging, maintaining mechanical compatibility with existing PCB designs and assembly processes

Frequently Asked Questions (FAQ)

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

A: Yes. The AH173-PG-B-B is electrically and functionally equivalent to the AH173-PL-B-B across all specified parameters. No circuit modifications or design changes are required for substitution.

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

A: The AH173-PL-B-B is classified as obsolete, while the AH173-PG-B-B maintains active product status. The packaging configuration differs (standard versus bulk), but electrical and mechanical specifications remain identical.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts maintain identical ROHS3 compliance and REACH unaffected status. Environmental and regulatory certifications are equivalent.

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

A: Yes. Both the AH173-PL-B-B and AH173-PG-B-B utilize the 3-SIP through-hole package. PCB footprints and mounting requirements are identical.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution is based on matching manufacturer (Diodes Incorporated), base product series (AH173), function (latch), technology (Hall Effect), polarization (south pole), sensing thresholds (8mT trip, -8mT release), supply voltage range (3V ~ 20V), output specifications (open collector, 25mA max), operating temperature range (-40°C ~ 125°C), and compliance certifications (ROHS3, REACH unaffected).