AP1704DWG-7 Equivalent & Substitute Parts

Part Overview

The AP1704DWG-7 is a single-channel power management supervisor IC manufactured by Diodes Incorporated, designed for reset and power-on reset applications. This component operates as a push-pull, totem pole output supervisor with a 3.08V voltage threshold and 100ms minimum reset timeout. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The SC-59-3 package configuration supports surface mount assembly in compact form factors.

Substiute Parts

AP1704DWG-7

Diodes IncorporatedIn Stock: 898AP1704DWG-7 Datasheet

Current PartRFQ

APX810-40SRG-7

Diodes IncorporatedIn Stock: 3209APX810-40SRG-7 Datasheet

DirectRFQ

AP1702DWG-7

Diodes IncorporatedIn Stock: 9452AP1702DWG-7 Datasheet

Parametric EquivalentRFQ

AP1704DWG-7

Diodes IncorporatedIn Stock: 898AP1704DWG-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP1704DWG-7 are identified based on functional equivalence within the allowed electrical and mechanical parameters. The primary substitution criteria are:

Functional Parameters (Must Match or Exceed):

• Single-channel voltage monitoring capability
• Push-pull, totem pole output configuration
• Active high reset logic
• Simple reset/power-on reset functionality
• Surface mount assembly compatibility

Electrical Parameters (Allowable Variation):

• Voltage threshold: 3.08V (main part) — substitutes may vary based on application requirements
• Reset timeout: 100ms minimum (main part) — substitutes with equal or longer timeout are acceptable
• Operating temperature range: 0°C ~ 70°C (main part) — substitutes with extended ranges provide broader operational capability

Mechanical Parameters (Must Match):

• Package type: TO-236-3, SC-59, SOT-23-3
• Mounting type: Surface mount
• RoHS3 compliance required

The APX810-40SRG-7 serves as a direct manufacturer substitute from Diodes Incorporated, maintaining functional equivalence while offering extended operating temperature range and improved moisture sensitivity characteristics.

Parameter Comparison

Engineering Selection Recommendations

APX810-40SRG-7 (Direct Manufacturer Substitute): This part is the primary substitute option from Diodes Incorporated. It maintains functional equivalence with identical output configuration, reset logic, and package compatibility. The APX810-40SRG-7 offers extended operating temperature range (-40°C ~ 85°C) compared to the main part (0°C ~ 70°C), providing broader environmental capability. Moisture sensitivity is improved to MSL 1 (Unlimited) versus MSL 3 (168 Hours) on the main part. The voltage threshold differs at 4V versus 3.08V, and reset timeout extends to 140ms minimum versus 100ms minimum. These parameter differences must be evaluated against specific application requirements. Product status is "Not For New Designs," indicating limited future availability.

AP1702DWG-7 (Parametric Equivalent): This part provides parametric equivalence with identical voltage threshold (3.08V), reset timeout (100ms minimum), and operating temperature range (0°C ~ 70°C). All functional parameters match the main part exactly. Package, mounting type, and compliance certifications are identical. Product status is obsolete, consistent with the main part. This option is suitable for direct replacement in applications where the specific electrical parameters of the AP1704DWG-7 are required.

Both substitute options maintain ROHS3 compliance and are manufactured by Diodes Incorporated, ensuring consistency with the original design ecosystem.

Frequently Asked Questions (FAQ)

Q: Can the APX810-40SRG-7 be used as a direct replacement for the AP1704DWG-7?

A: The APX810-40SRG-7 is functionally equivalent in output configuration, reset logic, and package type. However, the voltage threshold differs (4V versus 3.08V) and reset timeout is longer (140ms versus 100ms). These electrical parameter differences must be evaluated against your circuit design requirements before substitution.

Q: What is the difference between the AP1704DWG-7 and AP1702DWG-7?

A: Both parts are parametric equivalents with identical voltage threshold (3.08V), reset timeout (100ms minimum), operating temperature range (0°C ~ 70°C), and package configuration. The primary difference is the base product number (AP1704 versus AP1702). Both are obsolete products from Diodes Incorporated.

Q: Are all substitute parts available in the same package?

A: Yes. The AP1704DWG-7, APX810-40SRG-7, and AP1702DWG-7 all use the TO-236-3, SC-59, SOT-23-3 package family with surface mount assembly. The supplier device package designation differs (SC-59-3 for AP1704DWG-7 and AP1702DWG-7; SOT23R for APX810-40SRG-7), but mechanical compatibility is maintained.

Q: What is the impact of the voltage threshold difference in the APX810-40SRG-7?

A: The APX810-40SRG-7 has a 4V threshold versus 3.08V on the AP1704DWG-7. This means the supervisor will trigger at a higher supply voltage. Applications designed for 3.08V threshold operation must be re-evaluated if this substitute is used.

Q: Why is moisture sensitivity important for these parts?

A: Moisture sensitivity level (MSL) determines storage and handling requirements. The AP1704DWG-7 has MSL 3 (168 hours), requiring controlled storage conditions. The APX810-40SRG-7 has MSL 1 (Unlimited), offering more flexible handling and storage without time-dependent constraints.

Q: Are these parts suitable for new designs?

A: Both the AP1704DWG-7 and AP1702DWG-7 are obsolete. The APX810-40SRG-7 is marked "Not For New Designs." These parts are intended for maintenance, repair, and legacy system support only.