AH173-WL-7-A Equivalent & Substitute Parts

Part Overview

The AH173-WL-7-A is a digital switch latch Hall Effect magnetic sensor manufactured by Diodes Incorporated, housed in an SC-59-3 (SOT-23-3) surface mount package. This component functions as an open collector output magnetic switch with south pole polarization, designed for applications requiring latching magnetic detection across industrial and consumer electronics.

The AH173-WL-7-A carries an obsolete product status. Identifying equivalent substitute parts is essential for design continuity, procurement planning, and ensuring long-term supply chain reliability for existing applications and new designs requiring compatible functionality.

Substiute Parts

AH173-WL-7-A

Diodes IncorporatedIn Stock: 4474AH173-WL-7-A Datasheet

Current PartRFQ

AH173-WG-7-A

Diodes IncorporatedIn Stock: 117390AH173-WG-7-A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AH173-WL-7-A are identified based on strict equivalence across the following critical parameters:

• Functional equivalence: Latch function with Hall Effect technology
• Electrical compatibility: Identical supply voltage range (3V ~ 20V), output type (open collector), and current ratings
• Magnetic characteristics: Matching south pole polarization and sensing range (6mT trip, -6mT release)
• Thermal compatibility: Operating temperature range of -40°C ~ 125°C
• Mechanical compatibility: Surface mount package in SC-59-3 (SOT-23-3) form factor
• Regulatory compliance: ROHS3 and REACH compliance maintained

The AH173-WG-7-A qualifies as a direct substitute, maintaining all electrical, magnetic, and mechanical parameters while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The AH173-WG-7-A is the direct substitute for the obsolete AH173-WL-7-A. Both components maintain identical electrical, magnetic, and thermal specifications, ensuring functional compatibility in all applications.

The AH173-WG-7-A offers additional advantages: active product status ensures continued availability and manufacturing support, improved moisture sensitivity level (MSL 1 vs. MSL 3) provides extended shelf life and storage flexibility, and tape & reel packaging supports automated assembly processes.

For new designs and production transitions, the AH173-WG-7-A is the appropriate selection. For existing inventory management or legacy system support, the AH173-WL-7-A remains functionally equivalent until supply exhaustion.

Frequently Asked Questions (FAQ)

Q: Can the AH173-WG-7-A directly replace the AH173-WL-7-A in existing designs?

A: Yes. The AH173-WG-7-A is a direct substitute with identical electrical, magnetic, and thermal specifications. No circuit modifications are required.

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

A: The primary differences are product status (obsolete vs. active), packaging format (bulk vs. tape & reel), and moisture sensitivity level (MSL 3 vs. MSL 1). Electrical and functional performance are identical.

Q: Does the packaging difference affect compatibility?

A: No. Both components use the same SC-59-3 (SOT-23-3) surface mount package. The packaging format (bulk vs. tape & reel) affects procurement and assembly processes, not electrical compatibility.

Q: Are there any compliance or certification differences?

A: Both parts maintain ROHS3 compliance and REACH unaffected status. No compliance differences exist.

Q: What does MSL 1 vs. MSL 3 mean for storage?

A: MSL 1 (unlimited) allows indefinite storage under controlled conditions. MSL 3 (168 hours) requires component use within 168 hours of moisture exposure. The AH173-WG-7-A offers superior storage flexibility.