ATS177-PG-B-A Equivalent & Substitute Parts

Part Overview

The ATS177-PG-B-A is a digital switch latch Hall Effect magnetic sensor manufactured by Diodes Incorporated, designed for applications requiring magnetic field detection with open collector output. This component operates across a supply voltage range of 4.6V to 20V with a maximum supply current of 10mA and output current capability of 25mA. The device features temperature compensation and is housed in a 3-SIP through-hole package.

The ATS177-PG-B-A has reached obsolete product status. Identifying equivalent substitute parts is essential for maintaining design continuity, ensuring component availability, and supporting long-term production requirements for systems currently utilizing this magnetic sensor.

Substiute Parts

ATS177-PG-B-A

Diodes IncorporatedIn Stock: 2173ATS177-PG-B-A Datasheet

Current PartRFQ

AH3775-P-B

Diodes IncorporatedIn Stock: 20155AH3775-P-B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The AH3775-P-B qualifies as a direct substitute for the ATS177-PG-B-A based on the following critical parameters:

Functional Compatibility:

• Both devices implement Hall Effect latch technology with South Pole polarization
• Both are housed in 3-SIP through-hole packages, ensuring mechanical compatibility
• Both feature temperature-compensated operation

Electrical Compatibility:

• Supply voltage range of AH3775-P-B (3V ~ 28V) encompasses the ATS177-PG-B-A requirement (4.6V ~ 20V)
• Output current capability of AH3775-P-B (60mA) exceeds the ATS177-PG-B-A requirement (25mA)
• Supply current of AH3775-P-B (4mA max) is lower than ATS177-PG-B-A (10mA max)

Sensing Range Compatibility:

• AH3775-P-B sensing range (9mT Trip, -9mT Release) is within acceptable tolerance of ATS177-PG-B-A (10mT Trip, -10mT Release)

Output Configuration:

• AH3775-P-B uses open drain output versus open collector in ATS177-PG-B-A; both are compatible in typical pull-up configurations

Regulatory Compliance:

• Both devices are ROHS3 compliant and REACH unaffected

Parameter Comparison

Engineering Selection Recommendations

The AH3775-P-B is the qualified substitute for the obsolete ATS177-PG-B-A. Selection of this substitute is supported by the following engineering factors:

Product Status: The AH3775-P-B maintains active product status with Diodes Incorporated, ensuring ongoing availability and manufacturing support. The ATS177-PG-B-A obsolete status necessitates transition to an alternative component.

Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying current environmental and regulatory requirements.

Electrical Performance: The AH3775-P-B provides enhanced electrical characteristics including extended supply voltage range (3V ~ 28V versus 4.6V ~ 20V), reduced supply current consumption (4mA versus 10mA), and increased output current capability (60mA versus 25mA). These improvements provide design margin and flexibility in power budget allocation.

Thermal Operating Range: The AH3775-P-B extended operating temperature range (-40°C ~ 125°C versus -20°C ~ 85°C) accommodates broader environmental conditions and industrial applications.

Mechanical Compatibility: Both components utilize identical 3-SIP through-hole packaging, enabling direct mechanical substitution without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can the AH3775-P-B directly replace the ATS177-PG-B-A in existing designs?

A: Yes. Both components share identical 3-SIP through-hole packaging and Hall Effect latch functionality with South Pole polarization. The AH3775-P-B supply voltage range encompasses the ATS177-PG-B-A operating window, and output current capability exceeds design requirements. Sensing range values are within acceptable tolerance (9mT versus 10mT).

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

A: Both output configurations require external pull-up resistors to establish logic levels. Open collector uses a bipolar transistor output stage, while open drain uses a MOSFET output stage. In typical pull-up configurations, both are functionally equivalent for digital switching applications.

Q: Does the AH3775-P-B require different pull-up resistor values than the ATS177-PG-B-A?

A: Pull-up resistor selection depends on supply voltage, load current, and switching speed requirements rather than output type. The AH3775-P-B higher output current capability (60mA versus 25mA) allows use of lower pull-up resistance values if required by system design.

Q: Are there any thermal considerations when substituting the AH3775-P-B?

A: The AH3775-P-B operates across -40°C ~ 125°C, providing extended thermal range compared to the ATS177-PG-B-A (-20°C ~ 85°C). This enables deployment in wider environmental conditions without performance degradation.

Q: Is the AH3775-P-B available in the same package configuration?

A: Yes. Both components are housed in 3-SIP through-hole packages, ensuring mechanical and electrical compatibility without PCB layout modifications.

Q: What is the sensing range tolerance between these components?

A: The AH3775-P-B sensing range (9mT Trip, -9mT Release) differs by 1mT from the ATS177-PG-B-A (10mT Trip, -10mT Release). This represents a 10% variation and is within acceptable tolerance for magnetic latch applications where precise threshold matching is not critical.