TLE49461LHALA1 Equivalent & Substitute Parts

Part Overview

The TLE49461LHALA1 is a digital switch latch Hall Effect magnetic sensor manufactured by Infineon Technologies, packaged in PG-SSO-3-2 (3-SSIP). This component functions as an open collector output magnetic switch with temperature compensation, designed for automotive applications and qualified to AEC-Q100 standards. The part is currently obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Substiute Parts

TLE49461LHALA1

Infineon TechnologiesIn Stock: 2375TLE49461LHALA1 Datasheet

Current PartRFQ

AH175-PG-A-A

Diodes IncorporatedIn Stock: 191874AH175-PG-A-A Datasheet

MFR RecommendedRFQ

AH175-PG-A-B

Diodes IncorporatedIn Stock: 15807AH175-PG-A-B Datasheet

MFR RecommendedRFQ

AH175-PG-B-A

Diodes IncorporatedIn Stock: 33365AH175-PG-B-A Datasheet

MFR RecommendedRFQ

AH175-PG-B-B

Diodes IncorporatedIn Stock: 6455AH175-PG-B-B Datasheet

MFR RecommendedRFQ

AH1751-PG-A-A

Diodes IncorporatedIn Stock: 4757AH1751-PG-A-A Datasheet

MFR RecommendedRFQ

AH1751-PG-B-A

Diodes IncorporatedIn Stock: 158320AH1751-PG-B-A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TLE49461LHALA1 is determined by the following critical parameters:

Core Functional Requirements:

• Hall Effect technology with latch function
• South pole polarization
• Open collector output configuration
• Temperature compensation feature

Electrical Compatibility Criteria:

• Supply voltage range must encompass or overlap with 2.7V ~ 18V
• Maximum supply current: 6mA
• Output current capability must support 20mA minimum
• Operating temperature range must cover -40°C ~ 150°C or be suitable for the application environment

Mechanical Compatibility:

• Through-hole mounting type
• Package form factor compatibility (3-SIP or 3-SSIP variants)

Regulatory & Compliance:

• ROHS3 compliance required
• Automotive grade preferred for direct replacement

The substitute parts from Diodes Incorporated (AH175 and AH1751 series) meet these core requirements with variations in sensing range thresholds and output current ratings. Selection depends on specific application sensing requirements and output current demands.

Parameter Comparison

Engineering Selection Recommendations

AH175 Series (AH175-PG-A-A, AH175-PG-A-B, AH175-PG-B-A, AH175-PG-B-B): These parts are active, ROHS3 compliant alternatives with lower sensing thresholds (6mT or 8mT) compared to the TLE49461LHALA1 (19mT). The AH175 series provides 25mA output current capability and maintains the full -40°C ~ 150°C operating temperature range. Supply voltage range extends to 20V maximum. Selection between variants depends on required sensing sensitivity and packaging preference (bulk or cut tape).

AH1751 Series (AH1751-PG-A-A, AH1751-PG-B-A): These parts offer significantly higher output current capability (100mA) suitable for applications requiring greater load driving capacity. Operating temperature range is reduced to -40°C ~ 125°C. Sensing threshold is 7mT. These parts are active and ROHS3 compliant. AH1751-PG-B-A offers bulk packaging with high inventory availability (158,300 pcs).

Selection Basis:

• For direct functional replacement with automotive-grade performance: AH175 series maintains closest electrical compatibility
• For applications requiring higher output current: AH1751 series
• All substitutes are active products with established supply chains
• All meet ROHS3 compliance requirements

Frequently Asked Questions (FAQ)

Q: Can the AH175 series directly replace the TLE49461LHALA1? A: The AH175 series provides functional equivalence as a Hall Effect latch with open collector output, south pole polarization, and temperature compensation. Key differences are lower sensing thresholds (6-8mT vs. 19mT) and slightly higher output current capability (25mA vs. 20mA). Circuit design must account for the different magnetic sensitivity.

Q: What is the primary difference between AH175 and AH1751 series? A: The AH1751 series provides 100mA maximum output current compared to 25mA in the AH175 series. Operating temperature range is also reduced from -40°C ~ 150°C to -40°C ~ 125°C in the AH1751. Select AH1751 only if the application requires the higher output current capability.

Q: Are there package compatibility concerns? A: The TLE49461LHALA1 uses PG-SSO-3-2 (3-SSIP) packaging. Substitute parts use 3-SIP or 3-SIP with formed leads. Both are through-hole packages with three leads. Physical footprint and lead spacing should be verified for PCB compatibility, though pin count and basic form factor are compatible.

Q: What sensing range should I select? A: The TLE49461LHALA1 operates at 19mT trip threshold. Substitute parts offer 6mT, 7mT, or 8mT thresholds. Lower thresholds provide greater magnetic sensitivity. Application requirements determine the appropriate threshold. Consult application specifications for required magnetic field detection distance and strength.

Q: Is automotive qualification maintained in substitutes? A: The TLE49461LHALA1 carries AEC-Q100 automotive qualification. The AH175 and AH1751 series are not explicitly listed with automotive qualification in the provided specifications. For automotive applications requiring AEC-Q100 certification, verify qualification status with the manufacturer before selection.

Q: What is the voltage supply compatibility? A: The TLE49461LHALA1 operates from 2.7V ~ 18V. Substitute parts operate from 3.5V ~ 20V. The minimum supply voltage is higher (3.5V vs. 2.7V). Circuits operating below 3.5V require alternative solutions. Maximum voltage is higher in substitutes (20V vs. 18V), providing additional headroom.