PT7M7810RTEX Equivalent & Substitute Parts

Part Overview

The PT7M7810RTEX is a single-channel power management supervisor IC manufactured by Diodes Incorporated, designed for reset and power-on reset applications. This device operates as a push-pull, totem pole output supervisor with a 2.63V threshold and 140ms minimum reset timeout. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Substiute Parts

PT7M7810RTEX

Diodes IncorporatedIn Stock: 20240PT7M7810RTEX Datasheet

Current PartRFQ

APX810S-26SA-7

Diodes IncorporatedIn Stock: 21337APX810S-26SA-7 Datasheet

DirectRFQ

APX810-26SAG-7

Diodes IncorporatedIn Stock: 9729APX810-26SAG-7 Datasheet

Parametric EquivalentRFQ

APX810-26SRG-7

Diodes IncorporatedIn Stock: 18364APX810-26SRG-7 Datasheet

Parametric EquivalentRFQ

2T09I50QDBVRG4Q

Texas InstrumentsIn Stock: 10402T09I50QDBVRG4Q Datasheet

MFR RecommendedRFQ

LM809M3-2.93

Texas InstrumentsIn Stock: 28355LM809M3-2.93 Datasheet

MFR RecommendedRFQ

MIC810RUY-TR

Microchip TechnologyIn Stock: 742MIC810RUY-TR Datasheet

Parametric EquivalentRFQ

STM810RWX6F

Nexperia USA Inc.In Stock: 6252STM810RWX6F Datasheet

Parametric EquivalentRFQ

TCM810RENB713

Microchip TechnologyIn Stock: 61871TCM810RENB713 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PT7M7810RTEX is determined by the following critical parameters:

• Voltage Threshold: 2.63V (exact match required for circuit operation)
• Output Configuration: Push-Pull, Totem Pole (functional equivalence)
• Reset Logic: Active High (functional requirement)
• Reset Timeout: 140ms Minimum (timing specification)
• Package: TO-236-3, SC-59, SOT-23-3 (physical compatibility)
• Operating Temperature Range: -40°C ~ 85°C minimum (environmental specification)

Substitute parts are grouped into three categories:

Direct Manufacturer Substitutes (Diodes Incorporated APX810 Series): Parts with identical electrical parameters and active product status, offering direct replacement capability.

Parametric Equivalents (Microchip, Nexperia): Parts matching all critical electrical parameters with active or available status, suitable for direct substitution with identical circuit behavior.

Manufacturer Recommended Alternatives (Texas Instruments): Parts with different voltage thresholds or reset logic that require circuit evaluation before substitution.

Parameter Comparison

Engineering Selection Recommendations

Preferred Direct Substitutes: APX810S-26SA-7, APX810-26SAG-7, and APX810-26SRG-7 from Diodes Incorporated are the primary substitutes. All three maintain identical electrical parameters to the PT7M7810RTEX with active product status. APX810S-26SA-7 offers extended operating temperature range (-40°C ~ 125°C) compared to the original specification. APX810-26SRG-7 uses SOT23R packaging variant while maintaining electrical equivalence.

Secondary Parametric Equivalents: TCM810RENB713 (Microchip Technology) and MIC810RUY-TR (Microchip Technology) provide full electrical equivalence with identical voltage threshold, reset logic, and timeout specifications. Both are ROHS3 compliant with MSL 1 rating. TCM810RENB713 offers significantly higher inventory availability (61800 Pcs).

Alternative Consideration: STM810RWX6F (Nexperia USA Inc.) matches critical electrical parameters but lacks complete specification documentation in provided data.

Not Recommended for Direct Substitution: LM809M3-2.93 and 2T09I50QDBVRG4Q differ in voltage threshold and reset logic polarity, requiring circuit redesign. These parts are listed as manufacturer-recommended alternatives only and are not direct functional equivalents.

All recommended substitutes maintain ROHS3 compliance and MSL 1 rating consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can APX810S-26SA-7 replace PT7M7810RTEX directly? A: Yes. APX810S-26SA-7 is a direct substitute with identical voltage threshold (2.63V), output configuration (push-pull, totem pole), reset logic (active high), and reset timeout (140ms minimum). The extended operating temperature range (-40°C ~ 125°C versus -40°C ~ 85°C) provides additional margin without affecting circuit compatibility.

Q: What is the difference between APX810-26SAG-7 and APX810-26SRG-7? A: Both parts are electrically identical with 2.63V threshold and active high reset. The difference is packaging: APX810-26SAG-7 uses standard SOT-23-3, while APX810-26SRG-7 uses SOT23R variant. Both are physically compatible with TO-236-3 footprints.

Q: Why are LM809M3-2.93 and 2T09I50QDBVRG4Q listed if they cannot substitute directly? A: These parts are listed as manufacturer-recommended alternatives due to different voltage thresholds and reset logic polarity. LM809M3-2.93 uses 2.93V threshold with active low reset; 2T09I50QDBVRG4Q uses 4.55V threshold with active low reset. Both require circuit evaluation and potential redesign before use.

Q: Which substitute offers the best inventory availability? A: TCM810RENB713 (Microchip Technology) provides the highest inventory with 61800 Pcs in stock, combined with full electrical equivalence to the PT7M7810RTEX.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating, consistent with the original PT7M7810RTEX specification.

Q: Can I use STM810RWX6F as a substitute? A: STM810RWX6F matches the critical electrical parameters (2.63V threshold, active high reset, 140ms timeout, push-pull output). However, complete operating temperature and package specifications are not provided in available data. Verification with the manufacturer datasheet is recommended before design implementation.