AH374-W-7 Equivalent & Substitute Parts

Part Overview

The AH374-W-7 is a digital switch latch Hall Effect magnetic sensor manufactured by Diodes Incorporated, housed in a SC-59-3 (SOT-23-3) surface mount package. This component functions as an open drain output magnetic switch with temperature compensation, designed for applications requiring latching behavior triggered by magnetic field detection.

The AH374-W-7 is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

AH374-W-7

Diodes IncorporatedIn Stock: 18362AH374-W-7 Datasheet

Current PartRFQ

AH3774-W-7

Diodes IncorporatedIn Stock: 70960AH3774-W-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AH374-W-7 is based on the following critical parameters that must remain compatible:

• Package compatibility: Both parts must use SC-59-3 (SOT-23-3) surface mount housing to ensure PCB layout compatibility
• Functional equivalence: Both parts must operate as open drain output Hall Effect latching switches
• Electrical operating range: Supply voltage and output current ratings must meet or exceed the original design requirements
• Temperature performance: Operating temperature range must cover the application's thermal envelope
• Compliance standards: RoHS3 compliance and MSL rating must be maintained

The AH3774-W-7 meets these substitution criteria as an active product from the same manufacturer with compatible packaging, function, and electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The AH3774-W-7 is the direct substitute for the obsolete AH374-W-7. Both components are manufactured by Diodes Incorporated and maintain ROHS3 compliance and identical moisture sensitivity ratings.

The AH3774-W-7 offers enhanced electrical performance with an expanded supply voltage range (3V ~ 28V versus 2.2V ~ 20V) and increased maximum output current (60mA versus 25mA). The sensing range differs slightly (6mT trip / -6mT release versus 5mT trip / -5mT release), which must be evaluated against specific application requirements.

The AH3774-W-7 is actively manufactured and available in higher inventory quantities, ensuring supply chain continuity for production and field service applications.

Frequently Asked Questions (FAQ)

Q: Can the AH3774-W-7 be used as a direct drop-in replacement for the AH374-W-7?

A: Yes. Both components share identical SC-59-3 (SOT-23-3) packaging, surface mount configuration, and open drain Hall Effect latch functionality. PCB layout and footprint compatibility are maintained.

Q: What are the key electrical differences between these parts?

A: The AH3774-W-7 supports a wider supply voltage range (3V ~ 28V versus 2.2V ~ 20V) and provides higher maximum output current (60mA versus 25mA). The magnetic sensing threshold is slightly higher (6mT versus 5mT). Both maintain identical supply current consumption (4mA max) and operating temperature range (-40°C ~ 125°C).

Q: Does the difference in sensing range affect compatibility?

A: The sensing range difference (1mT higher for the substitute) must be evaluated within the context of the specific application's magnetic field environment and triggering requirements. Both parts maintain temperature compensation and latching function.

Q: Are both parts RoHS compliant?

A: Yes. Both the AH374-W-7 and AH3774-W-7 are ROHS3 compliant with MSL rating of 1 (Unlimited), meeting current environmental and regulatory requirements.

Q: What is the packaging format for the AH3774-W-7?

A: The AH3774-W-7 is supplied in Tape & Reel (TR) format, standard for high-volume production and automated assembly processes.