TLE4946H Equivalent & Substitute Parts

Part Overview

The TLE4946H is a digital switch latch Hall effect magnetic sensor manufactured by Infineon Technologies in the SC-59 surface mount package. This component functions as an open collector output magnetic switch with temperature compensation, designed for applications requiring reliable magnetic field detection and latching behavior.

The TLE4946H is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

TLE4946H

Infineon TechnologiesIn Stock: 3285TLE4946H Datasheet

Current PartRFQ

TLE4946KHTSA1

Infineon TechnologiesIn Stock: 56429TLE4946KHTSA1 Datasheet

DirectRFQ

AH175-WG-7-A

Diodes IncorporatedIn Stock: 51322AH175-WG-7-A Datasheet

MFR RecommendedRFQ

AH1751-WG-7-A

Diodes IncorporatedIn Stock: 45475AH1751-WG-7-A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLE4946H is determined by the following critical parameters:

Core Compatibility Requirements:

• Hall effect technology with latch function
• Open collector output configuration
• Surface mount packaging (SC-59 / SOT-23-3 / TO-236-3)
• South pole polarization
• Temperature compensation feature
• Operating temperature range: minimum -40°C, maximum ≥150°C
• Supply voltage range: 2.7V minimum, 18V maximum
• Current supply (max): 6mA
• Current output (max): ≥20mA

Substitute Parts Identified:

1. TLE4946KHTSA1 (Infineon Technologies) – Direct manufacturer equivalent with active product status and automotive qualification
2. AH175-WG-7-A (Diodes Incorporated) – Functionally equivalent with enhanced output current capability
3. AH1751-WG-7-A (Diodes Incorporated) – Functionally equivalent with significantly higher output current capacity

All three substitute parts meet the core compatibility requirements and are available in active production status.

Parameter Comparison

Engineering Selection Recommendations

TLE4946KHTSA1 is the primary recommended substitute. It is manufactured by Infineon Technologies, the original equipment manufacturer of the TLE4946H, ensuring design continuity and compatibility. This part maintains identical electrical specifications and package configuration. The TLE4946KHTSA1 holds active product status and carries AEC-Q100 automotive qualification with ROHS3 compliance, making it suitable for both commercial and automotive applications.

AH175-WG-7-A and AH1751-WG-7-A are functionally equivalent alternatives from Diodes Incorporated. Both parts maintain core compatibility with the TLE4946H across all critical parameters. The AH175-WG-7-A provides 25mA maximum output current, while the AH1751-WG-7-A provides 100mA maximum output current, offering enhanced current handling capability for applications requiring higher output drive. Both are ROHS3 compliant and in active production status.

Selection between these alternatives depends on application requirements. For direct replacement with minimal design changes, TLE4946KHTSA1 is optimal. For applications requiring higher output current capability, AH1751-WG-7-A is appropriate. All three parts are suitable for the full operating temperature range specified for the original component.

Frequently Asked Questions (FAQ)

Q: Can TLE4946KHTSA1 be used as a direct replacement for TLE4946H?

A: Yes. TLE4946KHTSA1 is electrically and mechanically compatible with TLE4946H. Both parts share identical supply voltage range (2.7V ~ 18V), output type (open collector), package configuration (SC-59), and operating temperature range (-40°C ~ 150°C). The primary difference is product status: TLE4946KHTSA1 is in active production.

Q: What are the differences between the Infineon and Diodes Incorporated substitutes?

A: TLE4946KHTSA1 (Infineon) maintains identical electrical specifications to the original TLE4946H. AH175-WG-7-A and AH1751-WG-7-A (Diodes) are functionally equivalent but offer different output current capabilities (25mA and 100mA respectively versus 20mA for the original). The Diodes parts also specify a minimum supply voltage of 3.5V versus 2.7V for Infineon parts.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts are available in TO-236-3, SC-59, and SOT-23-3 packages, ensuring mechanical compatibility with existing PCB designs.

Q: Which substitute should be selected for automotive applications?

A: TLE4946KHTSA1 carries AEC-Q100 automotive qualification and is the recommended choice for automotive applications. AH175-WG-7-A and AH1751-WG-7-A are suitable for commercial applications.

Q: What is the impact of different sensing ranges among the substitute parts?

A: The TLE4946H specifies 17mT trip and -17mT release. TLE4946KHTSA1 specifies 19mT trip and -19mT release. AH175-WG-7-A specifies 6mT trip and -6mT release. AH1751-WG-7-A specifies 7mT trip and -7mT release. Application-specific magnetic field requirements determine which part is appropriate for a given design.

Q: Are all substitute parts RoHS compliant?

A: TLE4946KHTSA1, AH175-WG-7-A, and AH1751-WG-7-A are all ROHS3 compliant. The original TLE4946H RoHS status is not specified in available documentation.