ATS277H-PG-B-A Equivalent & Substitute Parts

Part Overview

The ATS277H-PG-B-A is a digital switch latch Hall Effect magnetic sensor manufactured by Diodes Incorporated, housed in a 4-SIP package. This component functions as an open collector magnetic switch with south pole polarization, designed for applications requiring latching magnetic sensing functionality. The part is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

ATS277H-PG-B-A

Diodes IncorporatedIn Stock: 64244ATS277H-PG-B-A Datasheet

Current PartRFQ

AH276Z4-AG1

Diodes IncorporatedIn Stock: 50463AH276Z4-AG1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATS277H-PG-B-A is determined by strict alignment of the following critical parameters:

• Technology & Function: Hall Effect latch operation with south pole polarization
• Sensing Characteristics: 5mT trip threshold and -5mT release threshold
• Electrical Interface: Open collector output configuration
• Supply Voltage Range: Compatibility within the 4.6V to 20V operating window
• Temperature Range: -20°C to 85°C ambient operating specification
• Mounting & Package: Through hole mounting with 4-SSIP package footprint
• Compliance: ROHS3 compliance requirement

The AH276Z4-AG1 qualifies as a manufacturer-recommended substitute based on matching these core parameters while offering enhanced specifications in supply current efficiency and output current capability.

Parameter Comparison

Engineering Selection Recommendations

The AH276Z4-AG1 is the manufacturer-recommended substitute for the obsolete ATS277H-PG-B-A. Selection of this substitute is supported by the following engineering factors:

Product Status: The ATS277H-PG-B-A is obsolete, while the AH276Z4-AG1 maintains active product status with current manufacturing and supply availability.

Compliance & Certification: Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for applications subject to environmental directives.

Functional Equivalence: Identical Hall Effect latch operation, south pole polarization, and sensing thresholds (5mT trip, -5mT release) ensure functional interchangeability in magnetic switch applications.

Electrical Performance: The AH276Z4-AG1 demonstrates improved supply current efficiency (16mA maximum versus 25mA) and provides enhanced output current capability (350mA maximum), offering performance advantages in power-constrained and high-load applications.

Package Compatibility: Both components utilize identical 4-SSIP through-hole packaging, enabling direct footprint compatibility without PCB redesign.

Operating Range Consideration: The substitute's supply voltage range (4.6V ~ 16V) is narrower than the original (4.6V ~ 20V). Applications requiring operation above 16V supply voltage require design verification or alternative component selection.

Frequently Asked Questions (FAQ)

Q: Can the AH276Z4-AG1 directly replace the ATS277H-PG-B-A without PCB modifications?

A: Yes. Both components share identical 4-SSIP through-hole package geometry and pinout configuration, enabling direct socket substitution without PCB layout changes.

Q: What is the primary reason for substitution?

A: The ATS277H-PG-B-A is obsolete. The AH276Z4-AG1 is the active equivalent from the same manufacturer, ensuring continued supply availability and design support.

Q: Are the magnetic sensing characteristics identical?

A: Yes. Both components operate with identical south pole polarization and matching trip/release thresholds (5mT trip, -5mT release), ensuring equivalent magnetic switch behavior.

Q: Does the narrower supply voltage range of the AH276Z4-AG1 affect compatibility?

A: The substitute operates from 4.6V to 16V, compared to the original's 4.6V to 20V range. Applications operating at supply voltages between 16V and 20V require verification that the substitute's maximum rating is acceptable for the intended circuit design.

Q: What are the advantages of the AH276Z4-AG1 over the original part?

A: The substitute offers reduced supply current consumption (16mA versus 25mA) and increased output current capability (350mA maximum), providing improved efficiency and load-driving capability.

Q: Are both components RoHS compliant?

A: Yes. Both the ATS277H-PG-B-A and AH276Z4-AG1 maintain ROHS3 compliance, meeting environmental and regulatory requirements for restricted substance use.

Q: What packaging format is the AH276Z4-AG1 supplied in?

A: The AH276Z4-AG1 is supplied in Tape & Reel (TR) format, standard for automated assembly processes, while the original ATS277H-PG-B-A packaging format is not specified in available documentation.