TC1270SERCTR Equivalent & Substitute Parts

Part Overview

The TC1270SERCTR is a power management integrated circuit (PMIC) supervisor manufactured by Microchip Technology. This component functions as a simple reset/power-on reset supervisor with push-pull, totem pole output configuration for single-channel voltage monitoring applications. The TC1270SERCTR is classified as obsolete, necessitating identification of active equivalent and substitute parts for new designs and ongoing production requirements. Equivalent parts maintain identical electrical and mechanical specifications while offering active product status and improved availability.

Key Parameters

Parameter	Value
Manufacturer Part Number	TC1270SERCTR
Manufacturer	Microchip Technology
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 Low
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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99

Substitute Part Grouping Explanation

Substitution of the TC1270SERCTR is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

Voltage threshold: 2.93V
Output configuration: Push-Pull, Totem Pole
Reset logic: Active Low
Reset timeout: 140ms Minimum
Operating temperature range: -40°C ~ 85°C (TA)
Single-channel voltage monitoring capability

Mechanical Specifications:

Mounting type: Surface Mount
Package / Case: TO-253-4, TO-253AA
Supplier device package: SOT-143 or SOT-143-4

Compliance & Environmental:

RoHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Unaffected
ECCN: EAR99

All substitute parts listed maintain identical electrical performance and mechanical compatibility with the original TC1270SERCTR. Substitution is valid across manufacturers when all parameters match exactly.

Parameter Comparison

Parameter	TC1270SERCTR	MIC811SUY-TR	ADM811SARTZ-REEL	ADM811SARTZ-REEL7	APX811-29UG-7	MAX811SEUS+T	STM811SW16F
Manufacturer	Microchip Technology	Microchip Technology	Analog Devices Inc.	Analog Devices Inc.	Diodes Incorporated	Analog Devices Inc./Maxim Integrated	STMicroelectronics
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Type	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset
Number of Voltages Monitored	1	1	1	1	1	1	1
Voltage - Threshold	2.93V	2.93V	2.93V	2.93V	2.93V	2.93V	2.93V
Output Configuration	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole
Reset Logic	Active Low	Active Low	Active Low	Active Low	Active Low	Active Low	Active Low
Reset Timeout	140ms Minimum	140ms Minimum	140ms Minimum	140ms Minimum	140ms Minimum	140ms Minimum	140ms Minimum
Operating Temperature Range	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-253-4, TO-253AA	TO-253-4, TO-253AA	TO-253-4, TO-253AA	TO-253-4, TO-253AA	TO-253-4, TO-253AA	TO-253-4, TO-253AA	TO-253-4, TO-253AA
Supplier Device Package	SOT-143	SOT-143	SOT-143-4	SOT-143-4	SOT-143	SOT-143-4	SOT-143-4
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99

Engineering Selection Recommendations

Primary Recommendation: MIC811SUY-TR

The MIC811SUY-TR is the manufacturer-recommended substitute from Microchip Technology. This part maintains design continuity with the original TC1270SERCTR while offering active product status. Selection of the MIC811SUY-TR eliminates potential supply chain disruptions associated with obsolete components and provides equivalent electrical and mechanical performance.

Secondary Recommendations: ADM811SARTZ-REEL and ADM811SARTZ-REEL7

Both ADM811 variants from Analog Devices Inc. are parametrically equivalent to the TC1270SERCTR. The ADM811SARTZ-REEL7 offers significantly higher inventory availability (45,200 units) compared to the standard ADM811SARTZ-REEL (16,300 units). Both parts maintain identical electrical specifications and mechanical compatibility. Selection between these variants depends on packaging requirements: ADM811SARTZ-REEL is supplied in Tape & Reel (TR) format, while ADM811SARTZ-REEL7 is supplied in Cut Tape (CT) & Digi-Reel® format.

Tertiary Recommendations: APX811-29UG-7, MAX811SEUS+T, and STM811SW16F

These parts from Diodes Incorporated, Analog Devices Inc./Maxim Integrated, and STMicroelectronics respectively are parametrically equivalent alternatives. All three maintain identical electrical specifications and mechanical compatibility with the TC1270SERCTR. Selection among these options is determined by supply chain availability, packaging format preference, and inventory requirements. The APX811-29UG-7 offers the highest inventory availability (30,300 units) among this group.

All substitute parts listed are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99, maintaining full regulatory compliance with the original component.

Frequently Asked Questions (FAQ)

Q: Can the MIC811SUY-TR be used as a direct replacement for the TC1270SERCTR?

A: Yes. The MIC811SUY-TR is electrically and mechanically equivalent to the TC1270SERCTR. Both parts share identical voltage threshold (2.93V), output configuration (push-pull, totem pole), reset logic (active low), reset timeout (140ms minimum), operating temperature range (-40°C ~ 85°C), and package specifications (TO-253-4, TO-253AA, SOT-143). The MIC811SUY-TR is the manufacturer-recommended substitute and is currently in active production status.

Q: What is the difference between ADM811SARTZ-REEL and ADM811SARTZ-REEL7?

A: Both parts are parametrically identical and electrically equivalent. The primary difference is packaging format: ADM811SARTZ-REEL is supplied in standard Tape & Reel (TR) format, while ADM811SARTZ-REEL7 is supplied in Cut Tape (CT) & Digi-Reel® format. The ADM811SARTZ-REEL7 also offers significantly higher inventory availability (45,200 units versus 16,300 units). Selection depends on your procurement and assembly requirements.

Q: Are all listed substitute parts pin-compatible with the TC1270SERCTR?

A: Yes. All substitute parts share the same package specification (TO-253-4, TO-253AA) and supplier device package (SOT-143 or SOT-143-4). Pin compatibility is maintained across all listed alternatives.

Q: Can I use parts from different manufacturers interchangeably?

A: Yes, provided all electrical and mechanical parameters match exactly. The TC1270SERCTR can be substituted with equivalent parts from Microchip Technology, Analog Devices Inc., Diodes Incorporated, and STMicroelectronics. All listed substitutes maintain identical voltage threshold, output configuration, reset logic, reset timeout, operating temperature range, and package specifications.

Q: What compliance certifications do the substitute parts maintain?

A: All substitute parts listed are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. These certifications match the original TC1270SERCTR, ensuring regulatory compliance in new designs and production environments.

Q: Why is the TC1270SERCTR classified as obsolete?

A: The TC1270SERCTR has been discontinued by Microchip Technology. Active equivalent parts such as the MIC811SUY-TR and parametrically equivalent alternatives from other manufacturers are available to support ongoing production and new design requirements.

Q: Which substitute part offers the best inventory availability?

A: The ADM811SARTZ-REEL7 from Analog Devices Inc. offers the highest inventory availability at 45,200 units. This part is parametrically equivalent to the TC1270SERCTR and is supplied in Cut Tape (CT) & Digi-Reel® format.

Q: Are there any electrical performance differences between the substitute parts?

A: No. All substitute parts maintain identical electrical specifications: 2.93V voltage threshold, push-pull totem pole output, active low reset logic, 140ms minimum reset timeout, and -40°C ~ 85°C operating temperature range. Electrical performance is equivalent across all listed alternatives.

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