MCP809M3-2.93 Equivalent & Substitute Parts

Part Overview

The MCP809M3-2.93 is a single-channel supervisor IC in SOT-23-3 surface mount packaging, designed for power management and reset control applications. This device monitors a 2.93V threshold voltage and provides active-low reset output with a 140ms minimum timeout. The main part number is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and component procurement.

Substiute Parts

MCP809M3-2.93

Texas InstrumentsIn Stock: 1148MCP809M3-2.93 Datasheet

Current PartRFQ

MCP809M3-2.93/NOPB

National SemiconductorIn Stock: 3160MCP809M3-2.93/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MCP809M3-2.93 is determined by strict alignment of the following critical parameters:

• Voltage Threshold: 2.93V (exact match required)
• Reset Logic: Active Low (exact match required)
• Reset Timeout: 140ms Minimum (exact match required)
• Number of Channels: 1 (exact match required)
• Package Type: SOT-23-3 (exact match required)
• Operating Temperature Range: -40°C ~ 105°C (exact match required)
• Mounting Type: Surface Mount (exact match required)

The substitute part MCP809M3-2.93/NOPB meets all critical electrical and mechanical parameters. This part shares the same base product number (MCP809) and maintains functional equivalence across all specified thresholds, timing characteristics, and environmental ratings. The primary distinction is product status: the substitute is listed as active, providing ongoing availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The MCP809M3-2.93/NOPB is the direct functional equivalent for the obsolete MCP809M3-2.93. Both parts are classified under ECCN EAR99 and share identical HTSUS codes, confirming regulatory alignment. The substitute part maintains active product status, ensuring continued availability and supply chain support. Selection of the MCP809M3-2.93/NOPB eliminates obsolescence risk while preserving all electrical and mechanical specifications required for existing circuit designs. No design modifications are necessary for this substitution.

Frequently Asked Questions (FAQ)

Q: Can MCP809M3-2.93/NOPB be used as a direct replacement for MCP809M3-2.93?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters: 2.93V threshold, active-low reset, 140ms timeout, SOT-23-3 package, and -40°C to 105°C operating range. The substitute is functionally equivalent and requires no circuit modifications.

Q: What does the "/NOPB" suffix indicate?

A: The "/NOPB" suffix indicates lead-free (no-lead) plating on the component. This designation reflects RoHS compliance measures in the manufacturing process and does not affect electrical performance or functional compatibility.

Q: Why is the main part number listed as obsolete?

A: Product obsolescence typically results from manufacturer discontinuation or end-of-life decisions. The MCP809M3-2.93/NOPB remains in active production, providing a viable path for continued component sourcing and design support.

Q: Are there any compliance or certification differences between the two parts?

A: Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. Regulatory and export compliance requirements are equivalent.

Q: Is the SOT-23-3 package pinout identical between these parts?

A: Yes. Both parts use the SOT-23-3 package with identical pin configuration and mechanical dimensions. PCB layout and footprint compatibility are maintained without modification.