DS1831AS/T&R Equivalent & Substitute Parts

Part Overview

The DS1831AS/T&R is a multi-voltage supervisor IC from Analog Devices Inc./Maxim Integrated, designed for power management applications requiring monitoring of up to 4 voltage channels. This component operates as an open drain or open collector supervisor with active low reset functionality, housed in a 16-SOIC surface mount package. The DS1831AS/T&R is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations where this component is specified.

Substiute Parts

DS1831AS/T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 774DS1831AS/T&R Datasheet

Current PartRFQ

DS1831AS+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 808DS1831AS+T&R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS1831AS/T&R is determined by strict equivalence across the following critical parameters:

• Voltage Monitoring Channels: 4 channels required
• Voltage Threshold Levels: 3.3V, 5V, and adjustable options
• Output Configuration: Open drain or open collector topology
• Reset Functionality: Active low reset with specified timeout options (10ms, 100ms, 1,000ms minimum)
• Operating Temperature Range: -40°C to 85°C
• Package Type: 16-SOIC surface mount form factor
• Electrical and Mechanical Compatibility: Pin-for-pin compatibility within the 16-SOIC package specification

The DS1831AS+T&R qualifies as a direct substitute based on identical electrical specifications and mechanical packaging, with the primary distinction being packaging format (tape and reel versus individual packaging) and active product status.

Parameter Comparison

Engineering Selection Recommendations

The DS1831AS+T&R is the direct functional equivalent of the DS1831AS/T&R. Both components share identical electrical specifications, mechanical packaging, and compliance certifications. The primary distinction is product status: the DS1831AS/T&R is obsolete, while the DS1831AS+T&R maintains active status with current manufacturing support.

For new designs or system replacements, the DS1831AS+T&R is the appropriate selection. Both components maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental compatibility. The tape and reel packaging of the DS1831AS+T&R is standard for high-volume production environments and does not affect functional performance or pin compatibility.

Frequently Asked Questions (FAQ)

Q: Are the DS1831AS/T&R and DS1831AS+T&R pin-compatible?

A: Yes. Both components use the 16-SOIC package with identical pin assignments and electrical characteristics. They are direct pin-for-pin replacements.

Q: What is the difference between the two part numbers?

A: The primary difference is packaging format. The DS1831AS/T&R uses individual packaging, while the DS1831AS+T&R is supplied in tape and reel format. Electrically and mechanically, they are identical.

Q: Why is the DS1831AS/T&R listed as obsolete?

A: The DS1831AS/T&R has reached end-of-life status. The DS1831AS+T&R remains in active production and is the recommended source for current procurement.

Q: Can I use the DS1831AS+T&R as a direct replacement in existing designs?

A: Yes. The DS1831AS+T&R is functionally and mechanically equivalent. No circuit modifications are required.

Q: Are both parts RoHS compliant?

A: Yes. Both the DS1831AS/T&R and DS1831AS+T&R are ROHS3 compliant with identical moisture sensitivity levels (MSL 1).

Q: What voltage thresholds are available?

A: Both parts support 3.3V, 5V, and adjustable voltage threshold options for the 4 monitored channels.

Q: What is the reset timeout specification?

A: Both components offer selectable reset timeout options: 10ms, 100ms, or 1,000ms minimum, configured at the active low reset output.