APX810-29SAG-7 Equivalent & Substitute Parts

Part Overview

The APX810-29SAG-7 is a single-channel power management supervisor IC manufactured by Diodes Incorporated, designed for reset and power-on reset applications. This device operates as a push-pull, totem pole output supervisor with a 2.93V threshold voltage and 140ms minimum reset timeout. The part is classified as Not For New Designs, making identification of active equivalent and substitute parts essential for ongoing production support and design continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	APX810-29SAG-7
Manufacturer	Diodes Incorporated
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	2.93V
Output Configuration	Push-Pull, Totem Pole
Reset Logic	Active High
Reset Timeout	140ms Minimum
Operating Temperature Range	-40°C ~ 85°C (TA)
Package / Case	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the APX810-29SAG-7 is determined by strict equivalence across the following critical parameters:

Voltage threshold: 2.93V
Output configuration: Push-Pull, Totem Pole
Reset logic: Active High
Number of monitored voltages: 1 channel
Package compatibility: SOT-23-3 or SC-70-3 (surface mount)
Reset timeout: 140ms minimum or compatible timing
Operating temperature range: Minimum -40°C to 85°C or higher
RoHS3 compliance and MSL rating

Substitute parts are grouped into three categories:

Direct Manufacturer Equivalents (Diodes Incorporated): Parts with identical electrical specifications and active product status, suitable for immediate replacement.

Parametric Equivalents (Diodes Incorporated): Parts meeting all electrical criteria but with different packaging variants or product status classifications.

Manufacturer-Recommended Alternatives (Analog Devices Inc., Maxim Integrated, Microchip Technology): Cross-manufacturer parts meeting or exceeding all electrical and mechanical requirements with active product status.

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Output Type	Reset Timeout (Min)	Operating Temp Range	Package	Product Status
APX810-29SAG-7	Diodes Incorporated	2.93V	Push-Pull, Totem Pole	140ms	-40°C ~ 85°C	SOT-23-3	Not For New Designs
APX810S-29SA-7	Diodes Incorporated	2.93V	Push-Pull, Totem Pole	140ms	-40°C ~ 125°C	SOT-23-3	Active
APX810-29SRG-7	Diodes Incorporated	2.93V	Push-Pull, Totem Pole	140ms	-40°C ~ 85°C	SOT23R	Not For New Designs
PT7M7810STEX-1507	Diodes Incorporated	2.93V	Push-Pull, Totem Pole	140ms	-40°C ~ 85°C	SOT-23-3	Active
ADM810SARTZ-REEL7	Analog Devices Inc.	2.93V	Push-Pull, Totem Pole	140ms	-40°C ~ 125°C	SOT-23-3	Active
MAX6327UR29+T	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	100ms	-40°C ~ 85°C	SOT-23-3	Active
MAX6800UR29D1+T	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	1ms	-40°C ~ 125°C	SOT-23-3	Active
MAX6800UR29D2+T	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	20ms	-40°C ~ 125°C	SOT-23-3	Active
MAX810SEUR+T	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	140ms	-40°C ~ 105°C	SOT-23-3	Active
MCP810T-300I/TT	Microchip Technology	2.925V	Push-Pull, Totem Pole	150ms	-40°C ~ 85°C	SOT-23-3	Active
TCM810SVLB713	Microchip Technology	2.93V	Push-Pull, Totem Pole	140ms	-40°C ~ 125°C	SC-70-3	Active

Engineering Selection Recommendations

For Direct Replacement with Extended Temperature Range: APX810S-29SA-7 is the primary direct equivalent from Diodes Incorporated. This part maintains identical electrical specifications while offering active product status and an extended operating temperature range of -40°C to 125°C, providing superior thermal margin for production applications.

For Active Product Status with Identical Specifications: PT7M7810STEX-1507 (Diodes Incorporated) and ADM810SARTZ-REEL7 (Analog Devices Inc.) both provide active product status with full electrical equivalence. ADM810SARTZ-REEL7 offers the additional benefit of extended temperature range (-40°C to 125°C).

For Cross-Manufacturer Compatibility: MAX810SEUR+T (Analog Devices Inc./Maxim Integrated) provides exact electrical equivalence with 140ms reset timeout and active product status. Operating temperature extends to 105°C, bridging the gap between the original part and higher-temperature alternatives.

For Applications Requiring Faster Reset Timing: MAX6800UR29D1+T and MAX6800UR29D2+T offer significantly faster reset timeout specifications (1ms and 20ms respectively) with extended temperature range to 125°C. These parts are suitable only if circuit design permits faster reset response.

For Microchip Technology Ecosystem: MCP810T-300I/TT provides near-equivalent specifications with 2.925V threshold and 150ms reset timeout. TCM810SVLB713 offers identical electrical performance in SC-70-3 package with extended temperature range, suitable for space-constrained applications.

All recommended substitutes maintain RoHS3 compliance, MSL rating of 1 (Unlimited), and surface mount compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can APX810-29SAG-7 be replaced with APX810S-29SA-7? A: Yes. APX810S-29SA-7 is a direct electrical equivalent with identical voltage threshold (2.93V), output configuration (push-pull, totem pole), reset logic (active high), and reset timeout (140ms minimum). The substitute offers active product status and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C).

Q: What is the difference between SOT-23-3 and SC-70-3 packages? A: Both are surface mount packages for single-channel supervisor ICs. SOT-23-3 (TO-236-3, SC-59) and SC-70-3 (SOT-323) differ in physical dimensions and pin spacing. TCM810SVLB713 uses SC-70-3 package, which is smaller. Verify PCB layout compatibility before substitution.

Q: Are cross-manufacturer parts (Maxim, Microchip) fully compatible? A: Cross-manufacturer parts meeting the specified electrical parameters (2.93V threshold, push-pull output, active high reset, 140ms timeout minimum) are functionally equivalent. Verify pinout compatibility and operating temperature requirements for your specific application. All recommended alternatives maintain identical SOT-23-3 pinout.

Q: Why do some substitutes have different reset timeout values? A: Reset timeout determines the duration the supervisor holds the reset signal active. MAX6800 series parts offer 1ms and 20ms options, significantly faster than the 140ms original specification. Select based on circuit requirements; faster timing is not universally preferable and may cause compatibility issues in designs expecting longer reset duration.

Q: Is the 2.925V threshold of MCP810T-300I/TT acceptable as a substitute? A: MCP810T-300I/TT threshold of 2.925V is within practical tolerance of the 2.93V specification and is functionally equivalent for most applications. Verify threshold accuracy requirements in your circuit design before substitution.

Q: What does "Not For New Designs" product status mean? A: This classification indicates the part is in mature/legacy status and may have limited availability or future discontinuation risk. Active alternatives (APX810S-29SA-7, PT7M7810STEX-1507, ADM810SARTZ-REEL7) are recommended for new production designs to ensure long-term supply continuity.

Q: Can I use parts with extended temperature range (-40°C to 125°C) in place of -40°C to 85°C parts? A: Yes. Extended temperature range parts are backward compatible with applications requiring only -40°C to 85°C operation. This substitution provides additional thermal margin without functional compromise.

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