AP1703BWG-7 Equivalent & Substitute Parts

Part Overview

The AP1703BWG-7 is a supervisor integrated circuit from Diodes Incorporated designed for power management applications. This single-channel reset supervisor operates with a push-pull, totem pole output configuration and is housed in a SC-59-3 (SOT-23-3) surface mount package. The device monitors a single voltage threshold at 4.38V and provides active-low reset functionality with a 100ms minimum timeout.

The AP1703BWG-7 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this supervisor IC.

Key Parameters

Parameter	Value
Manufacturer Part Number	AP1703BWG-7
Manufacturer	Diodes Incorporated
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	4.38V
Output Configuration	Push-Pull, Totem Pole
Reset Logic	Active Low
Reset Timeout	100ms Minimum
Operating Temperature Range	0°C ~ 70°C (TA)
Mounting Type	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SC-59-3
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution for the AP1703BWG-7 is determined by strict equivalence across the following critical parameters:

Single Voltage Monitoring: The device must monitor exactly one voltage threshold
Voltage Threshold Level: 4.38V threshold requirement
Output Type: Push-pull, totem pole output configuration
Reset Logic: Active-low reset signal
Reset Timeout: 100ms minimum timeout specification
Package Compatibility: SC-59-3 (SOT-23-3) surface mount package
Operating Temperature: 0°C to 70°C range
Compliance: ROHS3 compliant and REACH unaffected status

The AP1701BWG-7 from Diodes Incorporated meets all these criteria and qualifies as a parametric equivalent. This part shares identical electrical specifications, package configuration, and compliance certifications with the AP1703BWG-7.

Parameter Comparison

Parameter	AP1703BWG-7 (Main Part)	AP1701BWG-7 (Substitute)	Match Status
Manufacturer	Diodes Incorporated	Diodes Incorporated	Identical
Category	Power Management (PMIC)	Power Management (PMIC)	Identical
Type	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Identical
Number of Voltages Monitored	1	1	Identical
Voltage - Threshold	4.38V	4.38V	Identical
Output Configuration	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Identical
Reset Logic	Active Low	Active Low	Identical
Reset Timeout	100ms Minimum	100ms Minimum	Identical
Operating Temperature Range	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	Identical
Supplier Device Package	SC-59-3	SC-59-3	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical
Product Status	Obsolete	Obsolete	Identical

Engineering Selection Recommendations

The AP1701BWG-7 is a direct parametric equivalent to the AP1703BWG-7. Both parts are manufactured by Diodes Incorporated and share identical electrical specifications, package configuration, and compliance certifications.

Both the AP1703BWG-7 and AP1701BWG-7 are classified as obsolete products. When selecting between these equivalent parts, availability should be the primary consideration. The AP1701BWG-7 currently maintains higher inventory levels (3240 pieces) compared to the AP1703BWG-7 (689 pieces), making it the preferred choice for procurement purposes.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance for new designs and ongoing production support.

Frequently Asked Questions (FAQ)

Q: Can the AP1701BWG-7 be used as a direct replacement for the AP1703BWG-7?

A: Yes. The AP1701BWG-7 is a parametric equivalent with identical electrical specifications, including voltage threshold (4.38V), output configuration (push-pull, totem pole), reset logic (active low), and package type (SC-59-3). No circuit modifications are required.

Q: Are there any differences in package dimensions or pin configuration between these parts?

A: No. Both parts use the SC-59-3 (SOT-23-3) surface mount package with identical pin configuration and mechanical specifications.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the AP1703BWG-7 and AP1701BWG-7 are ROHS3 compliant and REACH unaffected, meeting identical regulatory standards.

Q: Why is the AP1701BWG-7 recommended over the AP1703BWG-7?

A: Both parts are parametric equivalents. The AP1701BWG-7 is recommended based on superior inventory availability (3240 pieces versus 689 pieces), which supports supply chain continuity and reduces procurement lead times.

Q: What is the operating temperature range for these supervisor ICs?

A: Both parts operate across the temperature range of 0°C to 70°C (TA), making them suitable for standard industrial and commercial applications.

Q: Are these parts suitable for new designs?

A: Both the AP1703BWG-7 and AP1701BWG-7 are classified as obsolete. For new designs, evaluation of current-production supervisor ICs with equivalent specifications is recommended to ensure long-term supply chain support.

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