DS1834AS/T&R Equivalent & Substitute Parts

Part Overview

The DS1834AS/T&R is a multi-voltage supervisor IC from Analog Devices Inc./Maxim Integrated, part of the EconoReset series. This 8-SOIC surface-mount power management component monitors two voltage channels with 3.3V and 5V thresholds, providing active-low reset output via open-drain or open-collector configuration. The DS1834AS/T&R is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

DS1834AS/T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 3844DS1834AS/T&R Datasheet

Current PartRFQ

DS1834AS+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 5473DS1834AS+T&R Datasheet

Parametric EquivalentRFQ

DS1834S+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 1176DS1834S+T&R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DS1834AS/T&R are identified based on strict parametric equivalence across the following criteria:

• Identical number of voltage channels monitored (2 channels)
• Matching voltage thresholds (3.3V and 5V)
• Identical output configuration (open-drain or open-collector)
• Matching reset logic polarity (active low)
• Equivalent reset timeout specification (200ms minimum)
• Identical operating temperature range (-40°C to 85°C)
• Same package type and form factor (8-SOIC)
• Same base product number (DS1834)

The substitute parts DS1834AS+T&R and DS1834S+T&R meet all these parametric requirements and are manufactured by the same supplier, ensuring functional and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both DS1834AS+T&R and DS1834S+T&R are functionally equivalent substitutes for the obsolete DS1834AS/T&R. Selection between these alternatives should be based on the following factors:

DS1834AS+T&R offers availability in both Cut Tape (CT) and Digi-Reel® packaging formats, providing flexibility for different procurement and assembly workflows. This part carries ROHS3 compliance certification and maintains active product status with higher inventory availability (5400 units).

DS1834S+T&R is supplied in Tape & Reel (TR) format, suitable for high-volume automated assembly operations. This part also carries ROHS3 compliance certification and maintains active product status, though with lower inventory availability (1160 units).

Both substitute parts meet all parametric requirements for direct replacement in applications currently using the DS1834AS/T&R. The choice between them depends on packaging format requirements and procurement lead time considerations.

Frequently Asked Questions (FAQ)

Q: Can DS1834AS+T&R and DS1834S+T&R be used interchangeably with DS1834AS/T&R?

A: Yes. Both substitute parts are parametrically equivalent across all monitored voltage channels, threshold values, output configuration, reset logic, timing specifications, operating temperature range, and package form factor. They are direct functional replacements.

Q: What is the difference between the packaging formats offered by the substitute parts?

A: DS1834AS+T&R is available in Cut Tape (CT) and Digi-Reel® formats, suitable for manual or semi-automated assembly. DS1834S+T&R is supplied in Tape & Reel (TR) format, optimized for high-speed automated pick-and-place assembly equipment.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both DS1834AS+T&R and DS1834S+T&R carry ROHS3 compliance certification, whereas the original DS1834AS/T&R is RoHS non-compliant. This represents an improvement in environmental and regulatory compliance.

Q: Does the product status change affect compatibility?

A: No. The transition from obsolete to active status for the substitute parts ensures ongoing availability and manufacturing support. Functional and electrical compatibility remains unchanged.

Q: Are there any differences in the 8-SOIC package dimensions between parts?

A: No. All three parts use identical 8-SOIC packaging with 0.154" width (3.90mm), ensuring mechanical compatibility with existing PCB layouts and assembly processes.