MIC809JYC3 Equivalent & Substitute Parts

Part Overview

The MIC809JYC3 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 with a 4V threshold and 140ms minimum reset timeout, housed in an SC-70 (SOT-323) surface mount package.

The MIC809JYC3 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements. Active alternatives with identical or compatible electrical and mechanical specifications are available from Microchip Technology and Analog Devices Inc./Maxim Integrated.

Substiute Parts

MIC809JYC3

Microchip TechnologyIn Stock: 1010MIC809JYC3 Datasheet

Current PartRFQ

MIC809JYC3-TR

Microchip TechnologyIn Stock: 1003MIC809JYC3-TR Datasheet

DirectRFQ

TCM809JENB713

Microchip TechnologyIn Stock: 35156TCM809JENB713 Datasheet

MFR RecommendedRFQ

TCM809JVLB713

Microchip TechnologyIn Stock: 15205TCM809JVLB713 Datasheet

MFR RecommendedRFQ

TCM809JVNB713

Microchip TechnologyIn Stock: 5179TCM809JVNB713 Datasheet

MFR RecommendedRFQ

MAX809JEUR+T

Analog Devices Inc./Maxim IntegratedIn Stock: 7626MAX809JEUR+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MIC809JYC3 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Single-channel voltage monitoring at 4V threshold
• Push-pull totem pole output configuration
• Active low reset signal
• 140ms minimum reset timeout
• Operating temperature range support (minimum -40°C ~ 85°C)

Mechanical Compatibility Requirements:

• Surface mount technology
• SC-70 (SOT-323) or SOT-23-3 package footprints (both are functionally equivalent for this application)

Regulatory & Compliance Requirements:

• ROHS3 compliance
• REACH unaffected status
• EAR99 export classification

Substitute parts are grouped into two categories:

Category 1: Direct Microchip Technology Equivalents

• MIC809JYC3-TR (same base product, tape & reel packaging)
• TCM809JENB713 (SOT-23-3 package variant, active status)
• TCM809JVLB713 (SC-70 package, extended temperature range)
• TCM809JVNB713 (SOT-23-3 package, extended temperature range)

Category 2: Cross-Manufacturer Equivalent

• MAX809JEUR+T (Analog Devices Inc./Maxim Integrated, SOT-23-3 package)

All listed substitutes maintain identical electrical specifications for the core supervisor function and meet or exceed the regulatory requirements of the original part.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Package, Same Manufacturer): MIC809JYC3-TR is the primary substitute. It maintains identical electrical specifications and package form factor (SC-70, SOT-323) while offering active product status and improved supply availability through tape & reel packaging.

For Package-Variant Substitution (Microchip Technology): TCM809JENB713 and TCM809JVNB713 provide SOT-23-3 package alternatives. These parts are electrically equivalent but require PCB layout modification to accommodate the different package footprint. Both are actively manufactured with robust inventory levels.

For Extended Temperature Range (Microchip Technology): TCM809JVLB713 and TCM809JVNB713 support operating temperatures up to 125°C, exceeding the original specification of 85°C. These parts are suitable for applications requiring enhanced thermal performance.

For Cross-Manufacturer Substitution: MAX809JEUR+T (Analog Devices Inc./Maxim Integrated) provides functional equivalence with identical electrical specifications. This part operates to 105°C and is available in SOT-23-3 packaging. Cross-manufacturer substitution requires design validation to confirm compatibility with existing circuit implementations.

Compliance & Availability: All recommended substitutes maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification. Inventory availability is highest for TCM809JENB713 (35,100 units) and TCM809JVLB713 (15,100 units), supporting high-volume production requirements.

Frequently Asked Questions (FAQ)

Q: Can MIC809JYC3-TR be used as a direct replacement for MIC809JYC3? A: Yes. MIC809JYC3-TR is electrically and mechanically identical to MIC809JYC3. The only difference is packaging format (tape & reel versus tube). No circuit or PCB modifications are required.

Q: What is the difference between SC-70 and SOT-23-3 packages? A: SC-70 (SOT-323) and SOT-23-3 are different package footprints with different pin spacing and dimensions. While electrically equivalent, they require different PCB layouts. Substitution between these packages necessitates PCB redesign.

Q: Can I use TCM809JVLB713 or TCM809JVNB713 if my application only requires -40°C ~ 85°C operation? A: Yes. These parts support extended temperature ranges (-40°C ~ 125°C) and are fully compatible with applications requiring only -40°C ~ 85°C operation. The extended range provides additional design margin without penalty.

Q: Is MAX809JEUR+T a suitable substitute for designs already using Microchip parts? A: MAX809JEUR+T is electrically equivalent and functionally compatible. However, cross-manufacturer substitution should be validated against specific circuit requirements and supplier qualification procedures. The operating temperature range extends to 105°C, which may differ from original design specifications.

Q: What packaging options are available for high-volume production? A: Tape & reel (TR) and cut tape (CT) with Digi-Reel® packaging are available for production quantities. MIC809JYC3-TR, TCM809JVLB713, TCM809JENB713, TCM809JVNB713, and MAX809JEUR+T all support automated assembly processes.

Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements.