MAX6323BUT29-T Equivalent & Substitute Parts

Part Overview

The MAX6323BUT29-T is a supervisor integrated circuit from Analog Devices Inc./Maxim Integrated, classified as a Power Management PMIC. This watchdog circuit monitors a single voltage channel with a 2.93V threshold and provides push-pull, totem pole output with active-low reset functionality. The device operates across -40°C to 125°C and is packaged in SOT-23-6 surface mount configuration.

The MAX6323BUT29-T is currently obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production requirements.

Substiute Parts

MAX6323BUT29-T

Analog Devices Inc./Maxim IntegratedIn Stock: 674MAX6323BUT29-T Datasheet

Current PartRFQ

MAX6323AUT29+T

Analog Devices Inc./Maxim IntegratedIn Stock: 15346MAX6323AUT29+T Datasheet

MFR RecommendedRFQ

MAX6342SUT+T

Analog Devices Inc./Maxim IntegratedIn Stock: 10223MAX6342SUT+T Datasheet

MFR RecommendedRFQ

MAX6323CUT29+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1106MAX6323CUT29+T Datasheet

Parametric EquivalentRFQ

MAX6323DUT29+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1462MAX6323DUT29+T Datasheet

Parametric EquivalentRFQ

MAX6323EUT29+T

Analog Devices Inc./Maxim IntegratedIn Stock: 912MAX6323EUT29+T Datasheet

Parametric EquivalentRFQ

MAX6323HUT29+T

Analog Devices Inc./Maxim IntegratedIn Stock: 755MAX6323HUT29+T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX6323BUT29-T is determined by the following critical parameters:

• Voltage Threshold: 2.93V (all substitutes maintain this specification)
• Output Configuration: Push-Pull, Totem Pole (all substitutes maintain this specification)
• Reset Polarity: Active Low (all substitutes maintain this specification)
• Reset Timeout: 100ms Minimum (all substitutes maintain this specification)
• Operating Temperature Range: -40°C ~ 125°C (all substitutes maintain this specification)
• Package / Case: SOT-23-6 (all substitutes maintain this specification)
• Mounting Type: Surface Mount (all substitutes maintain this specification)

Substitute parts are grouped into two categories:

MFR Recommended Substitutes: Parts recommended by the manufacturer as direct replacements, featuring active product status and improved compliance certifications.

Parametric Equivalents: Parts that maintain identical electrical and mechanical parameters but may differ in product type classification (watchdog circuit vs. simple reset/power-on reset) or packaging format.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: MAX6323AUT29+T

This part is the manufacturer-recommended substitute for the obsolete MAX6323BUT29-T. It maintains identical electrical specifications and mechanical packaging while offering active product status and ROHS3 compliance. The Tape & Reel packaging format supports automated assembly processes.

Alternative Selections:

MAX6323CUT29+T, MAX6323EUT29+T, and MAX6323HUT29+T are parametric equivalents within the MAX6323 watchdog circuit family. All maintain identical electrical and thermal specifications with ROHS3 compliance and active product status. Selection among these variants depends on packaging format requirements and inventory availability.

MAX6342SUT+T is functionally equivalent in electrical performance and packaging but differs in circuit type classification (simple reset/power-on reset versus watchdog circuit). This part is suitable for applications where watchdog functionality is not required.

All recommended substitutes are ROHS3 compliant, addressing the RoHS non-compliance status of the original MAX6323BUT29-T. All substitutes maintain MSL 1 (Unlimited) moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can MAX6323AUT29+T directly replace MAX6323BUT29-T in existing designs?

A: Yes. MAX6323AUT29+T maintains identical electrical parameters, voltage threshold, output configuration, reset polarity, reset timeout, operating temperature range, and SOT-23-6 packaging. The primary differences are product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between MAX6323 and MAX6342 supervisor circuits?

A: Both maintain identical electrical specifications for this application (2.93V threshold, push-pull output, active-low reset, 100ms timeout, -40°C to 125°C operation, SOT-23-6 package). The MAX6323 is classified as a watchdog circuit, while the MAX6342 is classified as a simple reset/power-on reset circuit. Selection depends on whether watchdog functionality is required in the application.

Q: Are there packaging format differences among the substitute parts?

A: Yes. MAX6323AUT29+T, MAX6323CUT29+T, MAX6323EUT29+T, and MAX6323HUT29+T are supplied in Tape & Reel (TR) format. MAX6323DUT29+T is supplied in Cut Tape (CT) & Digi-Reel® format. Packaging selection depends on assembly equipment compatibility and order quantity requirements.

Q: Does the MAX6323BUT29-T obsolescence affect design compatibility with substitute parts?

A: No. All substitute parts are manufactured by the same supplier (Analog Devices Inc./Maxim Integrated) and maintain identical electrical and mechanical specifications. Pin configuration, voltage thresholds, output characteristics, and package dimensions are unchanged.

Q: What compliance improvements do the substitute parts offer?

A: The original MAX6323BUT29-T is RoHS non-compliant. All recommended substitutes (MAX6323AUT29+T, MAX6323CUT29+T, MAX6323DUT29+T, MAX6323EUT29+T, MAX6323HUT29+T, and MAX6342SUT+T) are ROHS3 compliant. All parts maintain REACH Unaffected status and EAR99 ECCN classification.