AH183-WL-7 Equivalent & Substitute Parts

Part Overview

The AH183-WL-7 is a unipolar Hall Effect magnetic switch manufactured by Diodes Incorporated in SC-59-3 surface mount packaging. This digital switch features open drain output and operates across a 2.5V to 5.5V supply range with a sensing range of -6mT trip and 1mT release. The part is currently obsolete, making equivalent substitutes necessary for ongoing design support and production continuity.

Substiute Parts

AH183-WL-7

Diodes IncorporatedIn Stock: 12435AH183-WL-7 Datasheet

Current PartRFQ

AH183-WG-7

Diodes IncorporatedIn Stock: 30498AH183-WG-7 Datasheet

DirectRFQ

TLE4906KHTSA1

Infineon TechnologiesIn Stock: 9270TLE4906KHTSA1 Datasheet

MFR RecommendedRFQ

TLI4906KHTSA1

Infineon TechnologiesIn Stock: 6158TLI4906KHTSA1 Datasheet

MFR RecommendedRFQ

TLV4906KFTSA1

Infineon TechnologiesIn Stock: 16044TLV4906KFTSA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AH183-WL-7 is determined by the following critical parameters:

Mechanical Compatibility: All substitute parts must use SC-59-3 or equivalent surface mount packaging (TO-236-3, SOT-23-3) to ensure PCB footprint compatibility.

Functional Equivalence: Substitute parts must operate as unipolar Hall Effect switches with open drain or open collector output types.

Electrical Operating Range: Supply voltage must encompass or exceed the original 2.5V to 5.5V range. Output current capability must support the 10mA maximum requirement.

Sensing Characteristics: Trip and release thresholds determine magnetic field detection behavior. Substitutes with different sensing ranges remain functionally equivalent if they detect the same magnetic pole orientation within acceptable application tolerances.

Environmental Compliance: All substitutes must maintain ROHS3 compliance and surface mount mounting type.

The substitute parts identified—AH183-WG-7, TLE4906KHTSA1, TLI4906KHTSA1, and TLV4906KFTSA1—meet these criteria with varying degrees of enhanced capability and active product status.

Parameter Comparison

Engineering Selection Recommendations

Direct Diodes Incorporated Substitutes: AH183-WG-7 provides identical electrical and thermal specifications to the AH183-WL-7, differing only in packaging format (Tape & Reel versus bulk). Both parts share obsolete status, making this option suitable only for short-term production support or existing inventory utilization.

Active Infineon Alternatives: TLE4906KHTSA1, TLI4906KHTSA1, and TLV4906KFTSA1 are active production parts with AEC-Q100 automotive qualification and temperature compensation features. These parts operate across an extended supply voltage range (2.7V to 18V) and provide higher output current capability (20mA versus 10mA). All three maintain SC-59-3 package compatibility.

Polarization Consideration: The Infineon substitutes detect South Pole magnetic fields, whereas the AH183-WL-7 detects North Pole. Applications requiring specific pole orientation must account for this difference in magnet placement or orientation.

Temperature Range Selection: TLV4906KFTSA1 matches the original -40°C to 85°C operating range. TLI4906KHTSA1 extends to -40°C to 125°C. TLE4906KHTSA1 provides the widest range at -40°C to 150°C for applications requiring enhanced thermal performance.

Long-Term Viability: For new designs or production continuity beyond current inventory, Infineon active parts provide superior supply chain stability and compliance certifications compared to obsolete Diodes Incorporated alternatives.

Frequently Asked Questions (FAQ)

Q: Can I use TLE4906KHTSA1 as a direct replacement for AH183-WL-7?

A: TLE4906KHTSA1 is mechanically and functionally compatible in SC-59-3 packaging with open output configuration. However, it detects South Pole magnetic fields versus the North Pole detection of AH183-WL-7. Magnet orientation in the application must be reversed or adjusted accordingly. The part also features higher supply voltage tolerance (2.7V to 18V) and output current (20mA), making it suitable for designs with expanded electrical requirements.

Q: What is the difference between open drain and open collector outputs?

A: Both output types function as switches that pull the output line to ground when activated. Open drain is used in CMOS logic circuits; open collector is used in TTL circuits. TLE4906KHTSA1 uses open collector output, while TLI4906KHTSA1 and TLV4906KFTSA1 use open drain. Circuit pull-up resistor requirements remain similar, but logic family compatibility should be verified for the specific application.

Q: Why do the Infineon parts have different sensing thresholds than the AH183-WL-7?

A: Sensing thresholds are determined by the Hall Effect sensor design and magnetic field calibration. The AH183-WL-7 trips at -6mT with 1mT release, while Infineon parts trip at approximately 14.6mT to 13.9mT with 4.7mT to 5mT release. These differences reflect different sensor designs and are not interchangeable without application-level validation. Magnet strength and placement must be adjusted to accommodate the higher threshold values.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. AH183-WG-7, TLE4906KHTSA1, TLI4906KHTSA1, and TLV4906KFTSA1 are all ROHS3 compliant, meeting environmental and hazardous substance restrictions for electronic components.

Q: Which substitute part should I select for automotive applications?

A: TLE4906KHTSA1, TLI4906KHTSA1, and TLV4906KFTSA1 all carry AEC-Q100 automotive qualification. Selection depends on operating temperature requirements: TLV4906KFTSA1 for -40°C to 85°C, TLI4906KHTSA1 for -40°C to 125°C, and TLE4906KHTSA1 for -40°C to 150°C applications.

Q: Can I use AH183-WG-7 for new production designs?

A: AH183-WG-7 is obsolete and not recommended for new designs. While electrically identical to AH183-WL-7, obsolete status indicates discontinued manufacturing and limited future availability. Active Infineon alternatives provide superior supply chain assurance and long-term production viability.