AH173-PL-A-B Equivalent & Substitute Parts

Part Overview

The AH173-PL-A-B is a Hall effect magnetic sensor latch manufactured by Diodes Incorporated, classified as a digital switch component. This device operates as a latching magnetic switch with a 25mA output capacity in a 3-lead SIP package format. The part is currently listed with obsolete product status, which necessitates identification of active equivalent alternatives for ongoing design requirements and procurement planning.

Substiute Parts

AH173-PL-A-B

Diodes IncorporatedIn Stock: 16177AH173-PL-A-B Datasheet

Current PartRFQ

AH173-PG-A-B

Diodes IncorporatedIn Stock: 6070AH173-PG-A-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The AH173-PL-A-B has one identified substitute: AH173-PG-A-B. This substitution is valid based on the following alignment of critical parameters:

Substitution Criteria:

• Identical manufacturer (Diodes Incorporated)
• Identical base product number (AH173)
• Identical package type (3-SIP)
• Identical function (Latch)
• Identical technology (Hall Effect)
• Identical output type (Open Collector)
• Identical maximum output current (25mA)
• Identical RoHS compliance status (ROHS3 Compliant)
• Identical moisture sensitivity level (MSL 1)

The primary difference between these parts is packaging format: the main part (AH173-PL-A-B) is supplied in Cut Tape format, while the substitute (AH173-PG-A-B) is supplied in Bulk format. The substitute part carries active product status, making it the appropriate selection for new designs and ongoing procurement.

Parameter Comparison

Engineering Selection Recommendations

The AH173-PG-A-B is the direct substitute for the obsolete AH173-PL-A-B. Selection of the substitute part is based on the following engineering factors:

Product Status Consideration: The main part carries obsolete status, indicating discontinued manufacturing and limited availability. The substitute maintains active product status with confirmed inventory of 5973 pieces in stock, ensuring supply chain continuity.

Compliance Alignment: Both parts maintain identical regulatory compliance certifications: ROHS3 Compliant, REACH Unaffected status, and EAR99 ECCN classification. This ensures no additional compliance burden or design modification requirements.

Functional Equivalence: The substitute part preserves all critical functional parameters including latch operation, Hall effect technology, open collector output configuration, and 25mA maximum output current capacity. The 3-SIP through-hole package format remains unchanged, supporting direct board-level substitution without layout modifications.

Packaging Consideration: The transition from Cut Tape to Bulk packaging format does not affect component functionality or electrical performance. This change impacts procurement and handling procedures only, not circuit operation or reliability characteristics.

Frequently Asked Questions (FAQ)

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

A: Yes. The substitute part maintains identical electrical specifications, package type, and functional characteristics. The only difference is the packaging format (Bulk versus Cut Tape), which does not affect circuit performance or board-level compatibility.

Q: What is the significance of the packaging format difference between these parts?

A: Packaging format (Cut Tape versus Bulk) affects component handling, storage, and procurement logistics. Cut Tape format provides pre-formed leads on tape for automated assembly equipment. Bulk format requires manual handling or alternative assembly processes. Electrical and mechanical specifications remain identical.

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

A: No. Both parts carry identical compliance certifications: ROHS3 Compliant, REACH Unaffected, and EAR99 ECCN classification. No additional compliance documentation or design modifications are required when transitioning to the substitute part.

Q: Why is the main part listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production of the AH173-PL-A-B. The substitute part (AH173-PG-A-B) maintains active production status and represents the current manufacturing equivalent within the AH173 product family.

Q: Are the sensing and operational parameters identical between these parts?

A: The substitute part specifies South Pole polarization, 8mT trip and -8mT release sensing range, 3V to 20V supply voltage, and -40°C to 125°C operating temperature. These parameters define the substitute's operational envelope. The main part does not provide these detailed specifications in the available documentation.

Q: What inventory considerations apply to these parts?

A: The main part (AH173-PL-A-B) shows 16070 pieces in stock with obsolete status. The substitute part (AH173-PG-A-B) shows 5973 pieces in stock with active status. For new procurement, the substitute part is the appropriate selection due to its active product status and ongoing manufacturing support.