TC1272ASVNBTR Equivalent & Substitute Parts

Part Overview

The TC1272ASVNBTR is a single-channel power supply supervisor IC manufactured by Microchip Technology, designed for reset and power-on reset applications in embedded systems. This active-low reset supervisor operates across a wide temperature range (-40°C to 125°C) and is packaged in the compact SOT-23-3 form factor. The part is currently in active production status with 705 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design flexibility demands component sourcing from multiple suppliers while maintaining identical electrical and mechanical performance.

Substiute Parts

TC1272ASVNBTR

Microchip TechnologyIn Stock: 756TC1272ASVNBTR Datasheet

Current PartRFQ

TCM809SVNB713

Microchip TechnologyIn Stock: 5204TCM809SVNB713 Datasheet

Parametric EquivalentRFQ

MCP809M3-2.93/NOPB

National SemiconductorIn Stock: 3160MCP809M3-2.93/NOPB Datasheet

MFR RecommendedRFQ

ADM809SARTZ-REEL7

Analog Devices Inc.In Stock: 117571ADM809SARTZ-REEL7 Datasheet

Parametric EquivalentRFQ

APX809S-29SA-7

Diodes IncorporatedIn Stock: 12137APX809S-29SA-7 Datasheet

Parametric EquivalentRFQ

APX809S-29SR-7

Diodes IncorporatedIn Stock: 2413APX809S-29SR-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC1272ASVNBTR is determined by strict equivalence across 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 Voltages Monitored: 1 (exact match required)
• Output Configuration: Push-Pull, Totem Pole (exact match required)
• Package / Case: TO-236-3, SC-59, SOT-23-3 (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -40°C to 125°C or wider (minimum requirement)

All identified substitute parts meet these criteria. Packaging format variations (Tape & Reel versus Cut Tape & Digi-Reel) do not affect electrical or mechanical compatibility and represent alternative supply chain options for the same component specification.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active production status and are ROHS3 compliant where specified. Selection between equivalent options should be based on the following factors:

Microchip Technology Options (TC1272ASVNBTR and TCM809SVNB713): Both parts are manufactured by Microchip Technology and provide identical electrical specifications. The primary difference is packaging format: TC1272ASVNBTR is supplied in Tape & Reel format, while TCM809SVNB713 is available in Cut Tape & Digi-Reel format. Selection depends on assembly line requirements and inventory management practices.

Analog Devices Option (ADM809SARTZ-REEL7): This part provides full parameter equivalence with the highest inventory availability (117,504 units in stock). It maintains the complete operating temperature range (-40°C to 125°C) and ROHS3 compliance. The Cut Tape & Digi-Reel packaging format offers flexibility for various manufacturing processes.

Diodes Incorporated Options (APX809S-29SA-7 and APX809S-29SR-7): Both Diodes parts meet all electrical specifications. APX809S-29SR-7 is supplied in Tape & Reel format (matching the original TC1272ASVNBTR packaging), while APX809S-29SA-7 is available in Cut Tape & Digi-Reel format. Both maintain full temperature range and ROHS3 compliance.

National Semiconductor Option (MCP809M3-2.93/NOPB): This part meets all critical electrical parameters but operates across a reduced temperature range (-40°C to 105°C). Selection of this part is appropriate only when the application does not require operation above 105°C. Output configuration is not specified in available documentation.

Frequently Asked Questions (FAQ)

Q: Can I substitute TC1272ASVNBTR with any of the listed parts without circuit modification?

A: Yes. All listed substitute parts are electrically and mechanically equivalent based on the critical parameters: 2.93V threshold, active-low reset logic, 140ms minimum reset timeout, push-pull totem pole output (except MCP809M3-2.93/NOPB where output is not specified), and SOT-23-3 package. No circuit modifications are required for direct substitution.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging?

A: Tape & Reel (TR) and Cut Tape & Digi-Reel (CT) are supply chain packaging formats that do not affect component performance. Tape & Reel is typically used for high-volume automated assembly, while Cut Tape & Digi-Reel offers flexibility for lower-volume or mixed-component pick-and-place operations. Selection depends on manufacturing process requirements.

Q: Why does MCP809M3-2.93/NOPB have a lower maximum operating temperature?

A: The MCP809M3-2.93/NOPB operates to 105°C maximum, compared to 125°C for other substitutes. This part is suitable for applications with maximum ambient temperatures at or below 105°C. Applications requiring operation above 105°C must use alternative substitutes.

Q: Are all substitute parts ROHS3 compliant?

A: ROHS3 compliance is confirmed for TC1272ASVNBTR, TCM809SVNB713, ADM809SARTZ-REEL7, APX809S-29SA-7, and APX809S-29SR-7. Compliance status for MCP809M3-2.93/NOPB is not specified in available documentation.

Q: Which substitute part has the best inventory availability?

A: ADM809SARTZ-REEL7 (Analog Devices) has the highest inventory availability at 117,504 units in stock, followed by APX809S-29SA-7 (Diodes) at 12,100 units.

Q: Can I mix different substitute parts in the same production run?

A: Yes. All substitute parts meet identical electrical and mechanical specifications for the critical parameters that determine circuit function. Mixing parts from different manufacturers in the same production run does not affect circuit performance or reliability.