MIC812RU TR Equivalent & Substitute Parts

Part Overview

The MIC812RU TR is a single-channel power supply supervisor IC manufactured by Microchip Technology, designed for power-on reset and voltage monitoring applications. This device operates as a push-pull, totem pole output supervisor with a 2.63V threshold and 140ms minimum reset timeout. The MIC812RU TR is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain identical electrical specifications, output characteristics, and package compatibility to ensure direct replacement capability.

Key Parameters

Parameter	Value
Manufacturer	Microchip Technology
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	2.63V
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-253-4, TO-253AA
Supplier Device Package	SOT-143
Packaging Format	Tape & Reel (TR)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the MIC812RU TR are qualified based on the following critical parameters that determine functional equivalence:

Voltage threshold: 2.63V
Output type: Push-Pull, Totem Pole
Reset logic: Active High
Reset timeout: 140ms Minimum
Number of monitored voltages: 1 Channel
Operating temperature range: -40°C ~ 85°C
Package / Case: TO-253-4, TO-253AA
Mounting type: Surface Mount

All qualified substitutes maintain these electrical and mechanical specifications. Substitutes are classified as either direct manufacturer alternatives (same base product line with different packaging or date codes) or parametric equivalents (different manufacturers with identical functional specifications).

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage Threshold	Output Type	Reset Logic	Reset Timeout	Operating Temp	Package	RoHS Status	Inventory (Pcs)
MIC812RU TR	Microchip Technology	Obsolete	2.63V	Push-Pull, Totem Pole	Active High	140ms Min	-40°C ~ 85°C	TO-253-4, TO-253AA	RoHS Non-Compliant	17000
MIC812RUY-TR	Microchip Technology	Active	2.63V	Push-Pull, Totem Pole	Active High	140ms Min	-40°C ~ 85°C	TO-253-4, TO-253AA	RoHS3 Compliant	772
STM812RW16F	STMicroelectronics	Active	2.63V	Push-Pull, Totem Pole	Active High	140ms Min	-40°C ~ 85°C	TO-253-4, TO-253AA	RoHS3 Compliant	6300
ADM812RARTZ-REEL7	Analog Devices Inc.	Active	2.63V	Push-Pull, Totem Pole	Active High	140ms Min	-40°C ~ 85°C	TO-253-4, TO-253AA	RoHS3 Compliant	1700
APX812-26UG-7	Diodes Incorporated	Active	2.63V	Push-Pull, Totem Pole	Active High	140ms Min	-40°C ~ 85°C	TO-253-4, TO-253AA	RoHS3 Compliant	3300
MAX812REUS+T	Analog Devices Inc./Maxim Integrated	Active	2.63V	Push-Pull, Totem Pole	Active High	140ms Min	-40°C ~ 85°C	TO-253-4, TO-253AA	RoHS3 Compliant	6900

Engineering Selection Recommendations

The MIC812RU TR is obsolete and should be replaced with an active product for new designs and production continuity. The primary recommended substitute is MIC812RUY-TR, the active variant from the same manufacturer (Microchip Technology), which maintains identical electrical specifications while offering RoHS3 compliance.

For applications requiring multi-source qualification or alternative manufacturer options, the following active substitutes are available:

STM812RW16F (STMicroelectronics) offers the highest inventory availability at 6300 units and full RoHS3 compliance. MAX812REUS+T (Analog Devices Inc./Maxim Integrated) provides 6900 units in stock with equivalent specifications. APX812-26UG-7 (Diodes Incorporated) and ADM812RARTZ-REEL7 (Analog Devices Inc.) are additional parametric equivalents with active product status and RoHS3 compliance.

All substitute parts are RoHS3 compliant, addressing regulatory requirements that the original MIC812RU TR does not meet. Selection should prioritize product status (active vs. obsolete), inventory availability, and supply chain requirements for the specific application.

Frequently Asked Questions (FAQ)

Q: Can MIC812RUY-TR directly replace MIC812RU TR in existing designs?

A: Yes. MIC812RUY-TR is the active production variant of the same base product (MIC812) from Microchip Technology. It maintains identical electrical specifications, output characteristics, voltage threshold, reset timeout, and package configuration. The primary difference is product status (active vs. obsolete) and RoHS3 compliance.

Q: Are all substitute parts pin-compatible with MIC812RU TR?

A: Yes. All listed substitutes use the same TO-253-4 / TO-253AA package and SOT-143 supplier device package, ensuring identical pinout and footprint compatibility on PCBs.

Q: What is the difference between direct manufacturer substitutes and parametric equivalents?

A: Direct manufacturer substitutes (MIC812RUY-TR) are variants from the same manufacturer using the same base product number. Parametric equivalents (STM812RW16F, ADM812RARTZ-REEL7, APX812-26UG-7, MAX812REUS+T) are from different manufacturers but meet identical electrical and mechanical specifications for the supervisor function.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS3 compliance indicates manufacturing process changes to eliminate restricted substances but does not alter electrical specifications, voltage thresholds, output characteristics, or operating temperature ranges. All active substitutes maintain the same functional performance as the original MIC812RU TR.

Q: Which substitute offers the best inventory availability?

A: MAX812REUS+T provides 6900 units in stock, followed by STM812RW16F with 6300 units. Both are active products with full RoHS3 compliance and identical specifications.

Q: Are there any package or mounting differences between substitutes?

A: No. All substitutes use surface mount technology with TO-253-4 / TO-253AA package and SOT-143 supplier device package. Moisture sensitivity level (MSL 1 - Unlimited) is identical across all parts.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message