AH180N-WSG-7 Equivalent & Substitute Parts

Part Overview

The AH180N-WSG-7 is an omnipolar Hall Effect magnetic switch manufactured by Diodes Incorporated, housed in a SC-59-3 (SOT-23-3) surface mount package. This digital switch operates as an open drain output device with a sensing range of ±5mT trip and ±1mT release, designed for applications requiring magnetic field detection across both north and south pole orientations. The product is currently obsolete, necessitating identification of active equivalent components that maintain functional and electrical compatibility for new designs or production continuity.

Substiute Parts

AH180N-WSG-7

Diodes IncorporatedIn Stock: 4336AH180N-WSG-7 Datasheet

Current PartRFQ

SL353HT

Honeywell Sensing and Productivity SolutionsIn Stock: 32289SL353HT Datasheet

MFR RecommendedRFQ

SL353LT

Honeywell Sensing and Productivity SolutionsIn Stock: 455227SL353LT Datasheet

MFR RecommendedRFQ

TLE4913HTSA1

Infineon TechnologiesIn Stock: 6157TLE4913HTSA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AH180N-WSG-7 is determined by the following critical parameters:

Functional Compatibility Requirements:

• Function: Omnipolar Switch (detects both north and south magnetic poles)
• Technology: Hall Effect
• Polarization: North Pole, South Pole
• Package / Case: TO-236-3, SC-59, SOT-23-3 (physical and electrical pin compatibility)
• Mounting Type: Surface Mount

Electrical Compatibility Requirements:

• Voltage Supply range must encompass or overlap with 2.5V ~ 5.5V
• Operating Temperature range must cover -40°C ~ 85°C
• Output Type: Open Drain (for direct pin-compatible replacement)

Substitute parts are grouped into two categories:

1. Direct Open Drain Substitutes (pin-compatible, output type match): TLE4913HTSA1
2. Functional Equivalents with Output Type Variation (same package, function, and polarization, but push-pull output): SL353HT, SL353LT

The SL353 series parts offer active product status and superior availability but feature push-pull output instead of open drain. The TLE4913HTSA1 maintains open drain output topology and includes automotive qualification (AEC-Q100).

Parameter Comparison

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement (Open Drain Output): The TLE4913HTSA1 is the primary substitute when open drain output topology is required. It maintains identical output type, operates within the same temperature range, and provides automotive-grade qualification (AEC-Q100) with ROHS3 compliance. The sensing range (±5mT trip, ±4.2mT release) closely matches the original part, making it suitable for applications with established magnetic field thresholds.

For Functional Equivalence with Output Type Flexibility: The SL353 series (SL353HT and SL353LT) provides active product status and superior inventory availability. Both variants maintain omnipolar Hall Effect functionality, identical package geometry, and full temperature range compatibility. The push-pull output requires circuit-level evaluation to confirm compatibility with existing pull-up or pull-down configurations. The SL353LT offers significantly lower supply current (3µA) compared to the SL353HT (640µA), making it preferable for battery-powered or low-power applications.

Compliance Considerations: All substitute parts maintain RoHS compliance. The TLE4913HTSA1 and SL353 series feature MSL 1 (Unlimited) moisture sensitivity, providing superior handling flexibility compared to the original part's MSL 3 rating.

Frequently Asked Questions (FAQ)

Q: Can the SL353HT or SL353LT directly replace the AH180N-WSG-7 without circuit modifications?

A: Physical and electrical pin compatibility is maintained due to identical SOT-23-3 packaging. However, the output type differs: the original part uses open drain output, while the SL353 series uses push-pull output. Circuit-level evaluation is necessary to confirm compatibility with existing pull-up or pull-down resistor networks and downstream logic.

Q: What is the primary difference between SL353HT and SL353LT?

A: Both parts are functionally identical with identical sensing ranges and output specifications. The primary difference is supply current: SL353HT draws 640µA maximum, while SL353LT draws 3µA maximum. For low-power applications, SL353LT is the preferred choice. Packaging differs (Tape & Reel for SL353HT versus Cut Tape & Digi-Reel for SL353LT), affecting procurement and assembly processes.

Q: How do the sensing ranges compare between the original part and substitutes?

A: The AH180N-WSG-7 has a trip threshold of ±5mT with ±1mT release hysteresis. The SL353 series has a wider trip threshold of ±11mT with ±9.5mT release hysteresis, requiring application-level validation if magnetic field margins are critical. The TLE4913HTSA1 provides ±5mT trip with ±4.2mT release, more closely matching the original specification.

Q: Is the TLE4913HTSA1 suitable for automotive applications?

A: Yes. The TLE4913HTSA1 carries AEC-Q100 automotive qualification and is designed for automotive-grade applications. The SL353 series does not carry automotive qualification but maintains industrial-grade reliability with active product status and unlimited MSL rating.

Q: What packaging options are available for production?

A: All substitute parts are available in surface mount SOT-23-3 packages. SL353HT is supplied in Tape & Reel format; SL353LT is supplied in Cut Tape & Digi-Reel format; TLE4913HTSA1 is supplied in Cut Tape & Digi-Reel format. Packaging selection depends on assembly equipment and production volume requirements.