MIC809TYC3-TR Equivalent & Substitute Parts

Part Overview

The MIC809TYC3-TR is a single-channel power management supervisor IC manufactured by Microchip Technology, designed for reset and power-on reset applications. This device operates as a push-pull, totem pole output supervisor with active-low reset functionality. The part is currently in active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts become necessary when the original MIC809TYC3-TR is unavailable, when alternative packaging formats are required for manufacturing optimization, or when extended operating temperature ranges are needed for specific application requirements.

Substiute Parts

MIC809TYC3-TR

Microchip TechnologyIn Stock: 816MIC809TYC3-TR Datasheet

Current PartRFQ

TCM809TENB713

Microchip TechnologyIn Stock: 35374TCM809TENB713 Datasheet

MFR RecommendedRFQ

TCM809TVLB713

Microchip TechnologyIn Stock: 5135TCM809TVLB713 Datasheet

MFR RecommendedRFQ

TCM809TVNB713

Microchip TechnologyIn Stock: 21762TCM809TVNB713 Datasheet

MFR RecommendedRFQ

MAX6326XR31+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1322MAX6326XR31+T Datasheet

MFR RecommendedRFQ

MAX6381XR31D2+T

Analog Devices Inc./Maxim IntegratedIn Stock: 749MAX6381XR31D2+T Datasheet

MFR RecommendedRFQ

MAX809TEXR+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3498MAX809TEXR+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MIC809TYC3-TR is determined by the following critical parameters:

Mandatory Matching Parameters:

• Voltage threshold: 3.08V
• Output configuration: Push-Pull, Totem Pole
• Reset logic: Active Low
• Number of channels monitored: 1
• Mounting type: Surface Mount
• Package family: SC-70 / SOT-323 variants

Allowable Variations:

• Packaging format (Tape & Reel, Cut Tape, Bulk) — does not affect electrical function
• Reset timeout: Minimum 100ms or greater (MIC809TYC3-TR specifies 140ms minimum)
• Operating temperature range: Extended ranges (-40°C ~ 125°C) are acceptable for applications within the original -40°C ~ 85°C specification
• Manufacturer: Alternative suppliers (Analog Devices Inc./Maxim Integrated, Microchip Technology variants) are acceptable if all electrical parameters match

All substitute parts listed maintain identical voltage threshold, output topology, reset polarity, and functional behavior within the specified operating conditions.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Identical Operating Temperature):

• TCM809TENB713: Microchip Technology equivalent with SOT-23-3 package in Cut Tape format. Maintains 140ms reset timeout and -40°C ~ 85°C operating range. Select when SOT-23-3 package footprint is compatible with PCB design.
• MAX6326XR31+T: Analog Devices equivalent in SC-70 package with Tape & Reel format. Reset timeout reduced to 100ms minimum, which remains compatible with applications requiring 140ms or less. Operating range matches original specification.

Extended Temperature Range Substitutes:

• TCM809TVLB713: Microchip Technology variant with extended operating range (-40°C ~ 125°C) in SC-70 package, Tape & Reel format. Maintains 140ms reset timeout. Select for applications requiring higher temperature operation.
• TCM809TVNB713: Microchip Technology variant with extended operating range (-40°C ~ 125°C) in SOT-23-3 package, Cut Tape format. Maintains 140ms reset timeout.
• MAX809TEXR+T: Analog Devices equivalent with extended operating range (-40°C ~ 125°C) in SC-70 package, Tape & Reel format. Maintains 140ms reset timeout.

Specialized Application Substitute:

• MAX6381XR31D2+T: Analog Devices variant with significantly reduced reset timeout (20ms minimum) and extended operating range (-40°C ~ 125°C). Select only when faster reset response is required. Available in Bulk packaging format.

All listed substitutes maintain RoHS3 compliance, MSL 1 rating, and active-low reset logic. Product status is active for all alternatives.

Frequently Asked Questions (FAQ)

Q: Can TCM809TENB713 replace MIC809TYC3-TR directly on the PCB? A: TCM809TENB713 is electrically equivalent but uses SOT-23-3 package instead of SC-70. Both are 3-pin surface mount packages with identical pin functionality. PCB footprint compatibility must be verified before substitution.

Q: What is the difference between the Microchip TCM809 variants and Maxim MAX809/MAX6326/MAX6381 series? A: All maintain identical voltage threshold (3.08V), output topology (push-pull, totem pole), and reset polarity (active low). Differences exist in reset timeout specifications and operating temperature ranges. Manufacturer-specific datasheets should be consulted for detailed electrical characteristics.

Q: Is MAX6381XR31D2+T suitable as a drop-in replacement? A: MAX6381XR31D2+T is electrically compatible but features a 20ms reset timeout versus the original 140ms. This faster response may alter system behavior. Use only when faster reset timing is acceptable or required by the application.

Q: Why do some substitutes have extended temperature ranges (-40°C ~ 125°C)? A: Extended temperature variants (TCM809TVLB713, TCM809TVNB713, MAX6381XR31D2+T, MAX809TEXR+T) are rated for higher maximum operating temperatures. These are backward-compatible with applications limited to -40°C ~ 85°C and provide additional design margin for thermal environments.

Q: Does packaging format (Tape & Reel vs. Cut Tape vs. Bulk) affect electrical performance? A: Packaging format affects only manufacturing and handling processes, not electrical function. All formats deliver identical component specifications. Selection depends on production volume and assembly equipment compatibility.

Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitute parts maintain RoHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating, matching the original MIC809TYC3-TR specifications.