CAT823LSDI-GT3 Equivalent & Substitute Parts

Part Overview

The CAT823LSDI-GT3 is a single-channel power management supervisor IC manufactured by onsemi, designed for simple reset and power-on reset applications. This component features push-pull, totem pole output configuration and operates across the industrial temperature range of -40°C to 85°C. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

CAT823LSDI-GT3

onsemiIn Stock: 1050CAT823LSDI-GT3 Datasheet

Current PartRFQ

MAX823LEXK+T

Analog Devices Inc./Maxim IntegratedIn Stock: 15139MAX823LEXK+T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAT823LSDI-GT3 is determined by strict equivalence across the following critical parameters:

• Voltage Threshold: 4.63V (single monitored voltage)
• Output Type: Push-Pull, Totem Pole configuration
• Reset Logic: Active Low
• Reset Timeout: 140ms Minimum
• Package: 5-TSSOP, SC-70-5, SOT-353 (identical physical footprint)
• Operating Temperature: -40°C to 85°C
• Mounting: Surface Mount

The MAX823LEXK+T from Analog Devices Inc./Maxim Integrated meets all specified electrical and mechanical parameters, enabling direct functional substitution in applications currently using the CAT823LSDI-GT3.

Parameter Comparison

Engineering Selection Recommendations

The MAX823LEXK+T is the direct functional equivalent for the obsolete CAT823LSDI-GT3. Selection of the MAX823LEXK+T is supported by:

• Identical electrical specifications across all monitored parameters
• Matching package footprint (5-TSSOP, SC-70-5, SOT-353) enabling direct PCB compatibility
• Active product status ensuring long-term availability and supply chain continuity
• ROHS3 compliance providing regulatory alignment for current manufacturing standards
• Equivalent moisture sensitivity classification (MSL 1) for storage and handling requirements

Frequently Asked Questions (FAQ)

Q: Can the MAX823LEXK+T be used as a direct replacement for the CAT823LSDI-GT3?

A: Yes. Both parts share identical voltage threshold (4.63V), output configuration (push-pull, totem pole), reset logic (active low), reset timeout (140ms minimum), operating temperature range (-40°C to 85°C), and package footprint (5-TSSOP, SC-70-5, SOT-353). No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The CAT823LSDI-GT3 is classified as obsolete. The MAX823LEXK+T maintains active product status, ensuring continued availability and supply chain support.

Q: Are there any packaging differences between these parts?

A: Both parts use the identical 5-TSSOP, SC-70-5, SOT-353 package. The MAX823LEXK+T is supplied in Tape & Reel (TR) format, which is standard for production quantities. The CAT823LSDI-GT3 packaging format was not specified in available documentation.

Q: Do compliance certifications differ?

A: The MAX823LEXK+T carries ROHS3 compliance certification. Both parts are REACH Unaffected and classified under ECCN EAR99. Moisture sensitivity levels are equivalent (MSL 1, Unlimited).

Q: Is PCB layout modification necessary?

A: No. Identical package specifications (5-TSSOP, SC-70-5, SOT-353) ensure pin-for-pin compatibility without PCB redesign.