DS1831S/T&R Equivalent & Substitute Parts

Part Overview

The DS1831S/T&R is a multi-voltage supervisor IC from Analog Devices Inc./Maxim Integrated, part of the MicroMonitor™ series. This 4-channel supervisor operates with open drain or open collector output configuration and is designed for power management applications requiring multi-voltage monitoring. The main part carries an obsolete product status, making identification of active equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

DS1831S/T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 762DS1831S/T&R Datasheet

Current PartRFQ

DS1831S+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 751DS1831S+T&R Datasheet

DirectRFQ

DS1831BS+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 947DS1831BS+T&R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DS1831S/T&R is determined by strict equivalence across the following critical parameters:

• Manufacturer Series: MicroMonitor™ (Analog Devices Inc./Maxim Integrated)
• Functional Type: Multi-Voltage Supervisor with 4-channel monitoring
• Voltage Thresholds: 3.3V, 5V, Adj, Adj configuration
• Output Stage: Open Drain or Open Collector
• Reset Configuration: Active Low with 10ms, 100ms, 1,000ms timeout options
• Package: 16-SOIC surface mount
• Temperature Range: -40°C to 85°C
• Compliance: ROHS3 Compliant, MSL 1

The substitute parts DS1831S+T&R and DS1831BS+T&R maintain identical electrical specifications and mechanical compatibility. The primary distinction is product status: DS1831S+T&R and DS1831BS+T&R are active products, whereas DS1831S/T&R is obsolete.

Parameter Comparison

Engineering Selection Recommendations

Both DS1831S+T&R and DS1831BS+T&R are suitable replacements for the obsolete DS1831S/T&R. Selection between the two active alternatives should be based on:

Product Availability: DS1831BS+T&R currently maintains higher inventory (857 pcs) compared to DS1831S+T&R (661 pcs), providing greater procurement flexibility for high-volume applications.

Compliance Continuity: All three parts maintain identical ROHS3 compliance, REACH unaffected status, and MSL 1 rating, ensuring regulatory and environmental compatibility across substitution.

Active Product Status: Both substitute parts carry active product status, ensuring long-term manufacturer support, continued availability, and access to technical documentation compared to the obsolete main part.

Electrical and Mechanical Interchangeability: The substitute parts are pin-for-pin and functionally equivalent, requiring no circuit redesign or PCB layout modification.

Frequently Asked Questions (FAQ)

Q: Can DS1831S+T&R and DS1831BS+T&R be used interchangeably with DS1831S/T&R?

A: Yes. Both substitute parts maintain identical electrical specifications, voltage thresholds, output configuration, reset timing, temperature range, and 16-SOIC package dimensions. No circuit modifications are required.

Q: What is the difference between DS1831S+T&R and DS1831BS+T&R?

A: Both parts are parametrically equivalent with identical functional specifications. The primary difference is inventory availability and the internal device designation (S versus BS variant). Both are active products from Analog Devices Inc./Maxim Integrated.

Q: Why is the original DS1831S/T&R marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support. Active equivalents DS1831S+T&R and DS1831BS+T&R provide continued design support and procurement reliability.

Q: Are there any package or compliance differences between the three parts?

A: No. All three parts use identical 16-SOIC surface mount packaging, maintain ROHS3 compliance, MSL 1 rating, and REACH unaffected status.

Q: Which substitute should I select for new designs?

A: Either DS1831S+T&R or DS1831BS+T&R is appropriate for new designs. Selection may be based on supplier availability and lead time. Both are active products with full manufacturer support.

Q: Is the Tape & Reel (TR) packaging format compatible with automated assembly?

A: Yes. Tape & Reel packaging is standard for automated surface mount assembly processes and is compatible with standard pick-and-place equipment.