TCM811TERCTR Equivalent & Substitute Parts

Part Overview

The TCM811TERCTR is a single-channel power management supervisor IC manufactured by Microchip Technology, designed for push-pull, totem pole output reset functionality. This device operates as a simple reset/power-on reset supervisor with a 3.08V voltage threshold and 140ms minimum reset timeout. The TCM811TERCTR is classified as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support, production continuity, and component sourcing.

Key Parameters

Parameter	Value
Manufacturer Part Number	TCM811TERCTR
Manufacturer	Microchip Technology
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	3.08V
Output	Push-Pull, Totem Pole
Reset	Active Low
Reset Timeout	140ms Minimum
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	TO-253-4, TO-253AA
Supplier Device Package	SOT-143
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the TCM811TERCTR is determined by strict equivalence across the following critical parameters:

Voltage threshold: 3.08V
Output configuration: Push-Pull, Totem Pole
Reset polarity: Active Low
Reset timeout: 140ms Minimum
Number of monitored voltages: 1
Package type: TO-253-4, TO-253AA (SOT-143 or SOT-143-4)
Operating temperature range: -40°C to 85°C minimum
Mounting type: Surface Mount

Substitute parts are grouped into two categories:

Parametric Equivalents maintain all critical electrical and mechanical parameters identical to the TCM811TERCTR, with active product status enabling continued availability.

Manufacturer Recommended Alternatives provide functional equivalence with variations in reset timeout or operating temperature range, selected based on design flexibility and active inventory status.

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Output Type	Reset Polarity	Reset Timeout	Operating Temp	Package	Product Status	Inventory
TCM811TERCTR	Microchip Technology	3.08V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	SOT-143	Obsolete	37,080 Pcs
MIC811TUY-TR	Microchip Technology	3.08V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	SOT-143	Active	1,789 Pcs
MAX6804US31D1+T	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull, Totem Pole	Active Low	1ms Min	-40°C ~ 125°C	SOT-143-4	Active	699 Pcs
MAX6804US31D2+T	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull, Totem Pole	Active Low	20ms Min	-40°C ~ 125°C	SOT-143-4	Active	674 Pcs
MAX6804US31D3+T	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull, Totem Pole	Active Low	100ms Min	-40°C ~ 125°C	SOT-143-4	Active	2,600 Pcs
MAX811TEUS+	Analog Devices Inc./Maxim Integrated	3.08V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	SOT-143-4	Active	1,340 Pcs
ADM811-3TARTZ-RL7	Analog Devices Inc.	3.08V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	SOT-143-4	Active	1,259 Pcs
ADM811TARTZ-REEL	Analog Devices Inc.	3.08V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	SOT-143-4	Active	25,218 Pcs
ADM811TARTZ-REEL7	Analog Devices Inc.	3.08V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	SOT-143-4	Active	14,755 Pcs
APX811-31UG-7	Diodes Incorporated	3.08V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	SOT-143	Active	7,930 Pcs
CAT811TTBI-GT3	onsemi	3.08V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	SOT-143-4	Obsolete	26,200 Pcs

Engineering Selection Recommendations

Primary Substitutes (Full Parameter Match)

MIC811TUY-TR, ADM811TARTZ-REEL, ADM811TARTZ-REEL7, and APX811-31UG-7 provide complete electrical and mechanical equivalence to the TCM811TERCTR. All are active products with ROHS3 compliance, REACH unaffected status, and identical voltage threshold, output configuration, reset polarity, and reset timeout specifications. ADM811TARTZ-REEL offers the highest inventory availability at 25,218 pieces.

Alternative Substitutes (Extended Operating Temperature)

MAX6804US31D1+T, MAX6804US31D2+T, and MAX6804US31D3+T are active Analog Devices products with extended operating temperature range (-40°C to 125°C) and identical voltage threshold and output configuration. These parts differ in reset timeout specifications (1ms, 20ms, and 100ms respectively) and may be selected when extended temperature performance is required and reset timeout variation is acceptable for the application.

MAX811TEUS+ is an active Analog Devices product with identical electrical parameters to the TCM811TERCTR, including 140ms minimum reset timeout and -40°C to 85°C operating range, with active product status and ROHS3 compliance.

Avoid

CAT811TTBI-GT3 is classified as obsolete and should not be selected for new designs despite high inventory availability.

Frequently Asked Questions (FAQ)

Q: Can I directly replace TCM811TERCTR with MIC811TUY-TR?

A: Yes. MIC811TUY-TR is a parametric equivalent with identical voltage threshold (3.08V), output configuration (push-pull, totem pole), reset polarity (active low), reset timeout (140ms minimum), and operating temperature range (-40°C to 85°C). Both use SOT-143 packaging. MIC811TUY-TR is active and ROHS3 compliant.

Q: What is the difference between ADM811TARTZ-REEL and ADM811TARTZ-REEL7?

A: Both parts are parametric equivalents with identical electrical specifications. The difference is in packaging designation and inventory tracking. Both are active Analog Devices products with 140ms reset timeout and -40°C to 85°C operating range.

Q: Can I use MAX6804US31D3+T instead of TCM811TERCTR?

A: MAX6804US31D3+T maintains the 3.08V voltage threshold, push-pull totem pole output, and active low reset polarity. It differs in reset timeout (100ms minimum versus 140ms minimum) and extended operating temperature range (-40°C to 125°C). Selection depends on whether the application requires the specific 140ms timeout or can tolerate 100ms.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the TCM811TERCTR.

Q: What packaging options are available?

A: Substitute parts use either SOT-143 or SOT-143-4 packaging, both compatible with TO-253-4 and TO-253AA footprints. MIC811TUY-TR and APX811-31UG-7 use SOT-143. All other active substitutes use SOT-143-4. Verify PCB footprint compatibility before selection.

Q: Which substitute has the highest inventory availability?

A: ADM811TARTZ-REEL offers 25,218 pieces in stock, the highest availability among all active substitutes with full parameter equivalence to the TCM811TERCTR.

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