DS1816R-5-U+ Equivalent & Substitute Parts

Part Overview

The DS1816R-5-U+ is a single-channel power supply supervisor IC from Analog Devices Inc./Maxim Integrated, part of the EconoReset series. This surface-mount PMIC operates as a simple reset/power-on reset device with an active-low open-drain output configuration. The device monitors a single voltage threshold at 3.3V and provides a 100ms minimum reset timeout, making it suitable for microcontroller and digital logic power management applications. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical characteristics, package specifications, and operational parameters that ensure functional interchangeability within the same application context.

Substiute Parts

DS1816R-5-U+

Analog Devices Inc./Maxim IntegratedIn Stock: 689DS1816R-5-U+ Datasheet

Current PartRFQ

DS1816R-5-U+

Analog Devices Inc./Maxim IntegratedIn Stock: 689DS1816R-5-U+ Datasheet

DirectRFQ

DS1816R-10-U+

Analog Devices Inc./Maxim IntegratedIn Stock: 935DS1816R-10-U+ Datasheet

Parametric EquivalentRFQ

DS1816R-20-U+

Analog Devices Inc./Maxim IntegratedIn Stock: 663DS1816R-20-U+ Datasheet

Parametric EquivalentRFQ

DS1818R-20-U+

Analog Devices Inc./Maxim IntegratedIn Stock: 1128DS1818R-20-U+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DS1816R-5-U+ are identified through strict parametric equivalence. The primary substitution criteria are: single-channel voltage monitoring configuration, 3.3V threshold voltage, open-drain output topology, active-low reset logic, 100ms minimum reset timeout, SOT-23-3 surface-mount package, -40°C to 85°C operating temperature range, and RoHS3 compliance status.

Parts are grouped into two categories:

Direct Manufacturer Equivalents (Same Base Product): DS1816R-10-U+ and DS1816R-20-U+ share the identical DS1816 base product number with the main part. These variants differ only in voltage threshold specifications (10V and 20V respectively) but maintain all other electrical and mechanical parameters.

Parametric Equivalents (Different Base Product): DS1818R-20-U+ represents an alternative supervisor IC from the same EconoReset series with matching single-channel configuration, output type, reset characteristics, package format, and compliance certifications. The DS1818 base product number indicates a different device variant within the same functional category.

All substitute parts maintain identical package specifications (SOT-23-3), operating temperature ranges, reset timeout values, and compliance certifications as the main part.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain Active product status with full RoHS3 compliance and REACH unaffected certification. Selection among DS1816R-5-U+, DS1816R-10-U+, DS1816R-20-U+, and DS1818R-20-U+ is determined by application-specific voltage threshold requirements. The DS1816R-5-U+ is specified for 5V threshold monitoring, while DS1816R-10-U+ and DS1816R-20-U+ accommodate 10V and 20V thresholds respectively. The DS1818R-20-U+ provides an alternative 20V threshold option from a different base product within the same series.

All parts share identical electrical output characteristics (open-drain, active-low reset), mechanical packaging (SOT-23-3 surface mount), thermal operating range (-40°C to 85°C), and compliance certifications. Substitution is valid only when the application voltage threshold requirement matches the selected part's specification. Inventory availability ranges from 605 to 1080 pieces across all variants, supporting production requirements.

Frequently Asked Questions (FAQ)

Q: Can DS1816R-10-U+ or DS1816R-20-U+ be used as direct replacements for DS1816R-5-U+?

A: These parts are parametric equivalents only when the application voltage threshold requirement matches. DS1816R-10-U+ monitors a 10V threshold, and DS1816R-20-U+ monitors a 20V threshold. If your circuit requires 5V threshold monitoring, only DS1816R-5-U+ is appropriate. All other electrical and mechanical parameters are identical.

Q: What is the difference between DS1816R-20-U+ and DS1818R-20-U+?

A: Both parts share identical electrical specifications (1-channel, 3.3V threshold, open-drain output, active-low reset, 100ms timeout) and mechanical packaging (SOT-23-3). The difference lies in the base product designation (DS1816 versus DS1818), indicating different device variants within the EconoReset series. Both are functionally equivalent for 20V threshold applications.

Q: Are all substitute parts in the same package format?

A: Yes. All listed parts use the TO-236-3, SC-59, SOT-23-3 surface-mount package. Pin-to-pin compatibility is maintained across all variants, allowing direct PCB substitution without layout modifications.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. All parts are RoHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity). Compliance certifications are identical across all variants.

Q: What is the reset timeout specification for all substitute parts?

A: All substitute parts maintain a 100ms minimum reset timeout with active-low reset logic. This specification is consistent across DS1816R-5-U+, DS1816R-10-U+, DS1816R-20-U+, and DS1818R-20-U+.

Q: Which substitute part has the highest inventory availability?

A: DS1818R-20-U+ has the highest inventory with 1080 pieces in stock, followed by DS1816R-10-U+ with 886 pieces, DS1816R-5-U+ with 657 pieces, and DS1816R-20-U+ with 605 pieces.