DS1831A Equivalent & Substitute Parts

Part Overview

The DS1831A is a multi-voltage supervisor IC from Analog Devices Inc./Maxim Integrated, designed for power management applications requiring monitoring of multiple supply voltages. This 16-DIP through-hole component provides open drain or open collector output with active low reset functionality across four monitored channels. The DS1831A is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

DS1831A

Analog Devices Inc./Maxim IntegratedIn Stock: 977DS1831A Datasheet

Current PartRFQ

DS1831A+

Analog Devices Inc./Maxim IntegratedIn Stock: 789DS1831A+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS1831A is determined by strict equivalence across the following critical parameters:

• Functional Type: Multi-voltage supervisor with 4-channel monitoring capability
• Voltage Thresholds: Support for 3.3V, 5V, and adjustable threshold configurations
• Output Configuration: Open drain or open collector output topology
• Reset Behavior: Active low reset with selectable timeout periods (10ms, 100ms, 1,000ms minimum)
• Operating Temperature: -40°C to 85°C range
• Package Specification: 16-DIP through-hole form factor with 0.300" (7.62mm) pitch
• Electrical Performance: Identical voltage monitoring and reset timeout specifications

The DS1831A+ meets all these criteria as a parametric equivalent, maintaining functional and electrical compatibility while offering improved compliance status.

Parameter Comparison

Engineering Selection Recommendations

The DS1831A+ serves as a direct parametric equivalent to the DS1831A, with all electrical and functional specifications remaining identical. The primary distinction lies in regulatory compliance: the DS1831A+ achieves RoHS3 compliance, whereas the original DS1831A is RoHS non-compliant. Both components are classified as obsolete products.

For applications requiring RoHS compliance or subject to environmental regulations, the DS1831A+ is the appropriate selection. For legacy systems where the original DS1831A is currently deployed, the DS1831A+ provides a compliant replacement without requiring circuit redesign or functional modification. Both parts maintain identical pinout, package dimensions, and electrical performance characteristics, ensuring direct substitution capability in existing through-hole PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the DS1831A+ be used as a direct replacement for the DS1831A in existing designs?

A: Yes. The DS1831A+ is a parametric equivalent with identical electrical specifications, voltage thresholds, output configuration, reset behavior, operating temperature range, and 16-DIP package dimensions. Direct substitution is possible without circuit modification.

Q: What is the primary difference between the DS1831A and DS1831A+?

A: The DS1831A+ achieves RoHS3 compliance, while the DS1831A is RoHS non-compliant. All functional and electrical parameters remain identical.

Q: Are both parts still in production?

A: Both the DS1831A and DS1831A+ are classified as obsolete products. Availability is limited to existing inventory from authorized distributors.

Q: Does the package type differ between these parts?

A: No. Both components use the 16-DIP through-hole package with 0.300" (7.62mm) pitch, ensuring identical PCB footprint and mounting requirements.

Q: What voltage thresholds are supported by these supervisors?

A: Both parts support fixed thresholds of 3.3V and 5V, as well as adjustable threshold configurations for custom voltage monitoring applications.

Q: Is the reset timeout configurable?

A: Yes. Both the DS1831A and DS1831A+ offer selectable reset timeout periods of 10ms, 100ms, or 1,000ms minimum, depending on the specific device variant selected.