DS1811-5/T&R Equivalent & Substitute Parts

Part Overview

The DS1811-5/T&R is a single-channel power management supervisor IC from Analog Devices Inc./Maxim Integrated, part of the EconoReset series. This device functions as a simple reset/power-on reset supervisor with open drain or open collector output, designed for through-hole mounting in TO-92-3 package configuration. The main part is currently listed as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support and procurement.

Substiute Parts

DS1811-5/T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 740DS1811-5/T&R Datasheet

Current PartRFQ

DS1811-5+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 2772DS1811-5+T&R Datasheet

DirectRFQ

DS1813-5+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 2703DS1813-5+T&R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DS1811-5/T&R is determined by strict equivalence across the following critical parameters:

• Voltage Threshold: 4.62V (single monitored voltage)
• Output Configuration: Open Drain or Open Collector
• Reset Logic: Active Low
• Reset Timeout: 100ms Minimum
• Operating Temperature Range: -40°C ~ 85°C (TA)
• Package Type: TO-92-3 (TO-226-3, TO-226AA Formed Leads)
• Mounting Type: Through Hole
• Moisture Sensitivity Level: 1 (Unlimited)

Two substitute parts meet these criteria: DS1811-5+T&R (direct packaging variant) and DS1813-5+T&R (parametric equivalent from the same EconoReset series). Both maintain identical electrical specifications and physical form factors, differing only in base product designation and packaging format (Cut Tape vs. Tape & Reel).

Parameter Comparison

Engineering Selection Recommendations

Both DS1811-5+T&R and DS1813-5+T&R are functionally equivalent substitutes for the obsolete DS1811-5/T&R. Selection between them should be based on the following factors:

DS1811-5+T&R: This part maintains the same base product number as the original DS1811-5/T&R, offering direct functional continuity. It is currently active in production and ROHS3 compliant, addressing regulatory requirements that the original part does not meet. Higher inventory availability (2743 units) supports procurement reliability.

DS1813-5+T&R: This parametric equivalent from the EconoReset series provides identical electrical and mechanical specifications. It is also active in production and ROHS3 compliant. Inventory levels (2643 units) are comparable to DS1811-5+T&R.

Both parts satisfy identical electrical requirements, package specifications, and environmental operating conditions. The choice between them depends on design documentation requirements, supply chain preferences, and inventory availability at the time of procurement. Both are suitable for direct substitution in applications currently using the DS1811-5/T&R.

Frequently Asked Questions (FAQ)

Q: Can DS1811-5+T&R and DS1813-5+T&R be used interchangeably with DS1811-5/T&R?

A: Yes. Both substitute parts maintain identical voltage threshold (4.62V), output configuration (open drain or open collector), reset logic (active low), reset timeout (100ms minimum), operating temperature range (-40°C ~ 85°C), and TO-92-3 package specifications. They are direct functional equivalents.

Q: What is the difference between DS1811-5+T&R and DS1813-5+T&R?

A: The primary difference is the base product designation (DS1811 vs. DS1813). Both are part of the EconoReset series and share identical electrical and mechanical parameters. The difference reflects internal Analog Devices product line organization but does not affect functional performance or compatibility.

Q: Why is the original DS1811-5/T&R listed as obsolete?

A: The original part is no longer in active production. However, active equivalent parts (DS1811-5+T&R and DS1813-5+T&R) are available from the same manufacturer and series, providing continued design support and procurement options.

Q: Are there any compliance differences between the original and substitute parts?

A: Yes. The original DS1811-5/T&R is RoHS non-compliant, while both substitute parts (DS1811-5+T&R and DS1813-5+T&R) are ROHS3 compliant. Both maintain REACH Unaffected status and identical ECCN and HTSUS classifications.

Q: What packaging formats are available for these parts?

A: The original DS1811-5/T&R is supplied in Tape & Reel (T&R) format. DS1811-5+T&R is available in Cut Tape (CT) format, while DS1813-5+T&R is also available in Cut Tape (CT) format. All three maintain the same TO-92-3 physical package configuration.

Q: Are there inventory considerations for selecting between the substitute parts?

A: Both substitute parts have substantial inventory availability (DS1811-5+T&R: 2743 units; DS1813-5+T&R: 2643 units), supporting reliable procurement. Inventory levels should be verified at the time of purchase to confirm availability for production requirements.