MIC810TU-TR Equivalent & Substitute Parts

Part Overview

The MIC810TU-TR is a single-channel power management supervisor IC manufactured by Microchip Technology, designed for reset and power-on reset applications. This device features push-pull totem pole output configuration in a compact SOT-23-3 surface mount package. The MIC810TU-TR is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. Functionally equivalent alternatives are available from multiple manufacturers including STMicroelectronics, Analog Devices, and Diodes Incorporated, all meeting the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	MIC810TU-TR
Manufacturer	Microchip Technology
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	3.08V
Output Configuration	Push-Pull, Totem Pole
Reset Logic	Active High
Reset Timeout	140ms Minimum
Operating Temperature Range	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SOT-23-3
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS Code	8542.39.0001
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution eligibility for the MIC810TU-TR is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage Threshold: 3.08V (exact match required)
Output Configuration: Push-Pull, Totem Pole (exact match required)
Reset Logic: Active High (exact match required)
Reset Timeout: 140ms Minimum (exact match required)
Package / Case: TO-236-3, SC-59, SOT-23-3 (exact match required)
Supplier Device Package: SOT-23-3 (exact match required)
Number of Voltages Monitored: 1 (exact match required)
Mounting Type: Surface Mount (exact match required)

Acceptable Variation Parameters:

Operating Temperature Range: May exceed the original -40°C ~ 85°C specification
RoHS Status: Substitute parts may be ROHS3 compliant while original is non-compliant
Packaging Format: Tape & Reel (TR), Cut Tape (CT), or Bulk acceptable
Manufacturer: Multiple qualified manufacturers available

Substitute parts are grouped into two categories: parametric equivalents (all electrical parameters match exactly) and direct manufacturer alternatives (same base functionality with identical critical specifications).

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Reset Timeout	Operating Temp Range	Package	RoHS Status	Product Status
MIC810TU-TR	Microchip Technology	3.08V	140ms Min	-40°C ~ 85°C	SOT-23-3	Non-compliant	Discontinued
TCM810TENB713	Microchip Technology	3.08V	140ms Min	-40°C ~ 85°C	SOT-23-3	ROHS3 Compliant	Active
STM810TWX6F	STMicroelectronics	3.08V	140ms Min	-40°C ~ 85°C	SOT-23-3	ROHS3 Compliant	Active
ADM1812-10ARTZ-RL7	Analog Devices Inc.	4.35V	100ms Min	-40°C ~ 105°C	SOT-23-3	ROHS3 Compliant	Active
ADM810TARTZ-REEL7	Analog Devices Inc.	3.08V	140ms Min	-40°C ~ 125°C	SOT-23-3	ROHS3 Compliant	Active
MAX6327UR31+T	Analog Devices Inc./Maxim Integrated	3.08V	100ms Min	-40°C ~ 85°C	SOT-23-3	ROHS3 Compliant	Active
MAX6800UR31D3+T	Analog Devices Inc./Maxim Integrated	3.08V	100ms Min	-40°C ~ 125°C	SOT-23-3	ROHS3 Compliant	Active
MAX810TEUR+T	Analog Devices Inc./Maxim Integrated	3.08V	140ms Min	-40°C ~ 105°C	SOT-23-3	ROHS3 Compliant	Active
APX810-31SAG-7	Diodes Incorporated	3.08V	140ms Min	-40°C ~ 85°C	SOT-23-3	ROHS3 Compliant	Active
APX810-31SRG-7	Diodes Incorporated	3.08V	140ms Min	-40°C ~ 85°C	SOT-23-3	ROHS3 Compliant	Not For New Designs
CAT810TTBI-GT3	onsemi	3.08V	140ms Min	-40°C ~ 85°C	SOT-23-3	ROHS3 Compliant	Obsolete

Engineering Selection Recommendations

Direct Parametric Equivalents (Recommended for Direct Replacement):

TCM810TENB713 and STM810TWX6F are direct parametric equivalents to the MIC810TU-TR, matching all critical electrical specifications including 3.08V threshold, 140ms reset timeout, and -40°C ~ 85°C operating range. Both parts are in active product status with ROHS3 compliance and available inventory. TCM810TENB713 offers higher inventory availability (17,300 units) in cut tape packaging, while STM810TWX6F provides 9,195 units in cut tape and Digi-Reel format from STMicroelectronics.

Extended Temperature Range Alternatives:

ADM810TARTZ-REEL7 and MAX6800UR31D3+T provide identical electrical specifications to the MIC810TU-TR with extended operating temperature ranges (-40°C ~ 125°C), suitable for applications requiring higher temperature performance. Both maintain the 3.08V threshold and 140ms reset timeout. ADM810TARTZ-REEL7 offers 3,200 units in stock, while MAX6800UR31D3+T provides 3,702 units.

Active Product Status Alternatives:

APX810-31SAG-7 from Diodes Incorporated is an active product with full parametric equivalence (3.08V threshold, 140ms timeout, -40°C ~ 85°C range) and the highest inventory availability at 15,658 units in tape and reel packaging.

Parts Not Recommended for New Designs:

APX810-31SRG-7 carries "Not For New Designs" status and should be avoided for new applications. CAT810TTBI-GT3 is obsolete and unsuitable for ongoing production. ADM1812-10ARTZ-RL7 has a different voltage threshold (4.35V) and reset timeout (100ms minimum), making it incompatible with the MIC810TU-TR specification.

Frequently Asked Questions (FAQ)

Q: Can I use ADM1812-10ARTZ-RL7 as a substitute for MIC810TU-TR?

A: No. The ADM1812-10ARTZ-RL7 has a voltage threshold of 4.35V and reset timeout of 100ms minimum, both differing from the MIC810TU-TR specification of 3.08V threshold and 140ms minimum timeout. These electrical parameter differences make it incompatible for direct substitution.

Q: What is the difference between TCM810TENB713 and STM810TWX6F?

A: Both are parametric equivalents with identical electrical specifications (3.08V threshold, 140ms reset timeout, -40°C ~ 85°C operating range, SOT-23-3 package). The primary differences are manufacturer (Microchip Technology versus STMicroelectronics), packaging format (cut tape versus cut tape and Digi-Reel), and inventory availability (17,300 units versus 9,195 units).

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed are ROHS3 compliant. The original MIC810TU-TR is RoHS non-compliant. If RoHS compliance is required for your application, any of the listed substitute parts satisfy this requirement.

Q: Can I use parts with extended temperature ranges as direct replacements?

A: Yes. Parts with extended operating temperature ranges such as ADM810TARTZ-REEL7 (-40°C ~ 125°C) and MAX6800UR31D3+T (-40°C ~ 125°C) are fully compatible with applications designed for the MIC810TU-TR (-40°C ~ 85°C). The extended range provides additional margin for high-temperature environments.

Q: Why is APX810-31SRG-7 marked "Not For New Designs"?

A: APX810-31SRG-7 carries a "Not For New Designs" status, indicating the manufacturer recommends against using this part for new product development. While it meets the electrical specifications, APX810-31SAG-7 from the same manufacturer is the recommended active alternative.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in multiple packaging formats: Tape & Reel (TR), Cut Tape (CT), Cut Tape with Digi-Reel, and Bulk. All maintain the SOT-23-3 supplier device package specification. Selection depends on production volume and handling requirements.

Q: Is the reset timeout specification critical for substitution?

A: Yes. The reset timeout is a critical parameter. The MIC810TU-TR specifies 140ms minimum. Substitute parts must match this specification exactly. Parts with different reset timeouts (such as ADM1812-10ARTZ-RL7 with 100ms minimum) are not compatible.

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