PT7M7823KTAEX Equivalent & Substitute Parts

Part Overview

The PT7M7823KTAEX is a single-channel power management supervisor IC manufactured by Diodes Incorporated, designed for reset and power-on reset applications. This device 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 suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

PT7M7823KTAEX

Diodes IncorporatedIn Stock: 1188PT7M7823KTAEX Datasheet

Current PartRFQ

APX823-23W5G-7

Diodes IncorporatedIn Stock: 2619APX823-23W5G-7 Datasheet

DirectRFQ

TPS3836L30QDBVRQ1

Texas InstrumentsIn Stock: 4034TPS3836L30QDBVRQ1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the PT7M7823KTAEX are qualified based on the following critical parameters:

• Single-channel voltage monitoring capability
• Push-pull, totem pole output configuration
• Active low reset logic
• Surface mount packaging in SC-74A/SOT-753 footprint
• ROHS3 compliance and EAR99 export classification
• Minimum 140ms reset timeout specification

The two identified substitutes meet these core electrical and mechanical requirements. However, variations exist in voltage threshold, reset timeout duration, operating temperature range, and product status that must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

APX823-23W5G-7 is a direct functional equivalent from the same manufacturer (Diodes Incorporated) with identical voltage threshold (2.25V) and reset timeout (140ms minimum) specifications. This part maintains active product status and ROHS3 compliance. The primary distinction is the supplier device package designation (SOT-25 versus SOT-23-5) and MSL rating (3 versus 1), which may affect moisture handling during assembly processes.

TPS3836L30QDBVRQ1 is an alternative from Texas Instruments with AEC-Q100 automotive qualification and extended operating temperature range (-40°C to 125°C). This part carries a higher voltage threshold (2.64V) and significantly shorter reset timeout (10ms minimum), which represent functional differences that must be evaluated against circuit requirements. The automotive-grade qualification and unlimited MSL rating provide advantages for demanding environments.

Frequently Asked Questions (FAQ)

Q: Can APX823-23W5G-7 be used as a direct replacement for PT7M7823KTAEX?

A: APX823-23W5G-7 meets the core electrical specifications: single-channel monitoring, 2.25V threshold, 140ms reset timeout, push-pull totem pole output, and active low reset logic. Both parts use SC-74A/SOT-753 footprint. The difference in supplier device package designation (SOT-25 versus SOT-23-5) and MSL rating should be verified against your assembly process requirements.

Q: What are the key differences between the two substitute options?

A: APX823-23W5G-7 maintains identical electrical parameters to the original part (2.25V threshold, 140ms timeout) and is from the same manufacturer. TPS3836L30QDBVRQ1 offers automotive qualification and extended temperature range but specifies a higher voltage threshold (2.64V) and shorter reset timeout (10ms), which represent functional deviations requiring circuit validation.

Q: Does the voltage threshold difference in TPS3836L30QDBVRQ1 affect compatibility?

A: The TPS3836L30QDBVRQ1 specifies 2.64V threshold versus 2.25V in the original part. This 0.39V difference alters the voltage monitoring point and must be evaluated against your power supply design and reset trigger requirements.

Q: What is the significance of the reset timeout difference?

A: The original PT7M7823KTAEX and APX823-23W5G-7 specify 140ms minimum reset timeout, while TPS3836L30QDBVRQ1 specifies 10ms minimum. Reset timeout determines the duration the reset signal remains active after a power event. Application-specific timing requirements must be verified before substitution.

Q: Are there packaging considerations for these substitutes?

A: All three parts use SC-74A/SOT-753 footprint for surface mount assembly. APX823-23W5G-7 is supplied in SOT-25 package configuration, while PT7M7823KTAEX and TPS3836L30QDBVRQ1 use SOT-23-5. Verify PCB layout compatibility with your specific package variant.

Q: What is the MSL rating difference and why does it matter?

A: MSL (Moisture Sensitivity Level) rating indicates moisture absorption limits during storage and assembly. PT7M7823KTAEX and TPS3836L30QDBVRQ1 carry MSL 1 (unlimited storage), while APX823-23W5G-7 carries MSL 3 (168-hour limit). MSL 3 components require controlled humidity storage and may need baking before reflow soldering.