AP1701FWL-7 Equivalent & Substitute Parts

Part Overview

The AP1701FWL-7 is a supervisor integrated circuit manufactured by Diodes Incorporated, classified as a Power Management (PMIC) component. This device functions as a simple reset/power-on reset supervisor with push-pull, totem pole output configuration, monitoring a single voltage threshold at 2.63V. The part is currently listed as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new design considerations.

Substiute Parts

AP1701FWL-7

Diodes IncorporatedIn Stock: 2311AP1701FWL-7 Datasheet

Current PartRFQ

APX809-26SAG-7

Diodes IncorporatedIn Stock: 33008APX809-26SAG-7 Datasheet

DirectRFQ

AP1701FWG-7

Diodes IncorporatedIn Stock: 6505AP1701FWG-7 Datasheet

Parametric EquivalentRFQ

AP1703FWG-7

Diodes IncorporatedIn Stock: 6499AP1703FWG-7 Datasheet

Parametric EquivalentRFQ

ADM809RARTZ-REEL7

Analog Devices Inc.In Stock: 15057ADM809RARTZ-REEL7 Datasheet

MFR RecommendedRFQ

MAX809RTRG

onsemiIn Stock: 1254MAX809RTRG Datasheet

MFR RecommendedRFQ

SP809EK-L-2-6/TR

MaxLinear, Inc.In Stock: 93658SP809EK-L-2-6/TR Datasheet

MFR RecommendedRFQ

TCM809RENB713

Microchip TechnologyIn Stock: 158821TCM809RENB713 Datasheet

MFR RecommendedRFQ

TCM809RVNB713

Microchip TechnologyIn Stock: 3097TCM809RVNB713 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AP1701FWL-7 is determined by the following critical parameters:

• Voltage Threshold: 2.63V (primary functional requirement)
• Output Configuration: Push-Pull, Totem Pole (electrical interface requirement)
• Reset Logic: Active Low (signal behavior requirement)
• Package / Case: TO-236-3, SC-59, SOT-23-3 (physical and electrical compatibility)
• Mounting Type: Surface Mount (assembly compatibility)
• Number of Voltages Monitored: 1 (functional scope)

Substitute parts are grouped into two categories:

Parametric Equivalents maintain identical electrical specifications and operating temperature range (0°C ~ 70°C), ensuring direct functional replacement with no design modifications required.

Manufacturer Recommended Alternatives provide equivalent core functionality with extended operating temperature ranges (-40°C to 85°C or higher) and improved product status (Active vs. Obsolete). These parts maintain the same voltage threshold, output configuration, and reset logic, with reset timeout specifications within acceptable engineering tolerances (100ms to 140ms minimum).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): AP1703FWG-7 is the primary recommendation as a parametric equivalent. It maintains the exact voltage threshold (2.63V), reset timeout (100ms minimum), and operating temperature range (0°C ~ 70°C) of the AP1701FWL-7. The part is currently Active, addressing the obsolescence issue while preserving all electrical and thermal characteristics. MSL rating improves from 3 to 1, reducing moisture handling requirements.

For Extended Temperature Range Applications: TCM809RVNB713 (Microchip Technology) or ADM809RARTZ-REEL7 (Analog Devices Inc.) are recommended when operating temperature range must extend to -40°C to 125°C or -40°C to 125°C respectively. Both maintain the 2.63V threshold and Active product status. TCM809RVNB713 offers the widest temperature coverage (-40°C ~ 125°C) with identical voltage threshold specification.

For Cost-Optimized Alternatives: TCM809RENB713 (Microchip Technology) provides Active product status with -40°C ~ 85°C operating range and 2.63V threshold at potentially lower cost due to high inventory availability (158,754 pcs).

For Voltage Threshold Tolerance: SP809EK-L-2-6/TR (MaxLinear, Inc.) operates with a 2.6V threshold, representing a 0.03V deviation from the specified 2.63V. This part is suitable only when system design permits this threshold variation. It offers Active status and -40°C ~ 85°C operating range.

All recommended substitutes maintain ROHS3 compliance, REACH unaffected status, and identical EAR99 ECCN classification.

Frequently Asked Questions (FAQ)

Q: Can AP1703FWG-7 be used as a direct replacement for AP1701FWL-7? A: Yes. AP1703FWG-7 is a parametric equivalent with identical voltage threshold (2.63V), reset timeout (100ms minimum), and operating temperature range (0°C ~ 70°C). The primary advantage is Active product status versus Obsolete. Both use SC-59-3 packaging and maintain identical electrical specifications.

Q: What is the difference between SC-59-3 and SOT-23-3 packaging? A: SC-59-3 and SOT-23-3 are equivalent designations for the same TO-236-3 physical package. Both refer to a 3-pin surface mount package with identical pin configuration and footprint. Substitutes using SOT-23-3 designation are mechanically and electrically compatible with SC-59-3 applications.

Q: Why do some substitutes have 140ms reset timeout instead of 100ms? A: Reset timeout specifications of 140ms minimum are functionally compatible with designs requiring 100ms minimum. The 140ms specification represents a longer timeout period, which is acceptable in applications where the original 100ms minimum was not a critical constraint. Verify system timing requirements before selection.

Q: Is TCM809RVNB713 suitable for applications requiring -40°C to 125°C operation? A: Yes. TCM809RVNB713 is rated for -40°C ~ 125°C operating temperature, exceeding the original AP1701FWL-7 specification of 0°C ~ 70°C. It maintains the 2.63V voltage threshold and Active product status, making it suitable for extended temperature range applications.

Q: What does "Not For New Designs" product status mean for APX809-26SAG-7? A: "Not For New Designs" indicates the part is available but not recommended for new circuit designs. While functionally equivalent, it represents a transitional product status. For new designs, select parts with Active status such as TCM809RENB713, TCM809RVNB713, or ADM809RARTZ-REEL7.

Q: How does MSL rating affect component selection? A: MSL (Moisture Sensitivity Level) rating indicates moisture handling requirements during storage and assembly. AP1701FWL-7 has MSL 3 (168 hours), requiring more stringent moisture control. Most substitutes have MSL 1 (Unlimited), reducing moisture management complexity and cost during manufacturing.

Q: Can SP809EK-L-2-6/TR be used if the system operates at 2.6V threshold instead of 2.63V? A: SP809EK-L-2-6/TR operates at 2.6V threshold, a 0.03V deviation from the specified 2.63V. Compatibility depends on system design tolerance. If the application requires exact 2.63V threshold, select TCM809RENB713, TCM809RVNB713, or ADM809RARTZ-REEL7 instead.