AH373-SA-7 Equivalent & Substitute Parts

Part Overview

The AH373-SA-7 is a digital switch latch Hall Effect magnetic sensor manufactured by Diodes Incorporated, housed in a SOT-23-3 surface mount package. This component functions as an open drain output magnetic switch with temperature compensation, designed for applications requiring latching magnetic sensing at South Pole polarization. The AH373-SA-7 is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production support.

Substiute Parts

AH373-SA-7

Diodes IncorporatedIn Stock: 27424AH373-SA-7 Datasheet

Current PartRFQ

AH3782-SA-7

Diodes IncorporatedIn Stock: 3289AH3782-SA-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AH373-SA-7 is determined by strict alignment of the following electrical and mechanical parameters:

• Sensing Technology: Hall Effect with latch function and South Pole polarization
• Package Compatibility: SOT-23-3 surface mount package (TO-236-3, SC-59 equivalent)
• Output Configuration: Open drain output type
• Sensing Range: 6mT trip threshold, -6mT release threshold
• Temperature Compensation: Required feature
• Operating Temperature Range: -40°C to 125°C
• Regulatory Compliance: ROHS3 compliant, REACH unaffected

The AH3782-SA-7 meets all substitution criteria as an active product from the same manufacturer with identical sensing characteristics, package form factor, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

The AH3782-SA-7 is the direct active equivalent for the obsolete AH373-SA-7. Both components share identical sensing characteristics, package form factor, and regulatory compliance certifications. The AH3782-SA-7 maintains ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity.

The AH3782-SA-7 demonstrates enhanced electrical performance specifications: supply voltage range extends to 28V (versus 20V maximum for AH373-SA-7), maximum supply current increases to 5.8mA, and maximum output current capability reaches 60mA (compared to 25mA). These improvements provide greater design flexibility without compromising core sensing functionality or package compatibility.

For applications currently using AH373-SA-7, direct substitution with AH3782-SA-7 is supported by identical sensing thresholds, output configuration, and thermal operating range. The active product status of AH3782-SA-7 ensures long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can AH3782-SA-7 replace AH373-SA-7 in existing designs?

A: Yes. Both components feature identical Hall Effect latch sensing technology, 6mT trip and -6mT release thresholds, South Pole polarization, open drain output, temperature compensation, and SOT-23-3 package form factor. Operating temperature range and regulatory compliance are equivalent.

Q: What are the key differences between these parts?

A: The AH3782-SA-7 offers extended supply voltage range (3V to 28V versus 2.2V to 20V), higher maximum supply current (5.8mA versus 4mA), and increased maximum output current (60mA versus 25mA). These represent performance enhancements rather than functional changes.

Q: Are there package compatibility concerns?

A: No. Both components use identical SOT-23-3 surface mount packaging (TO-236-3, SC-59 equivalent designations). PCB footprints and mounting procedures are identical.

Q: What is the regulatory compliance status?

A: Both AH373-SA-7 and AH3782-SA-7 are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance regulations.

Q: Why is AH373-SA-7 listed as obsolete?

A: The AH373-SA-7 has been discontinued by the manufacturer. The AH3782-SA-7 serves as the active replacement, offering equivalent functionality with enhanced electrical performance specifications and guaranteed long-term availability.