DS1233MS-3/T&R Equivalent & Substitute Parts

Part Overview

The DS1233MS-3/T&R is a single-channel power supply supervisor IC manufactured by Analog Devices Inc./Maxim Integrated, designed for power-on reset and supervisory functions in embedded systems. This component monitors a single voltage rail and provides an active-low reset output via open-drain or open-collector configuration. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations where inventory constraints exist.

Substiute Parts

DS1233MS-3/T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 1018DS1233MS-3/T&R Datasheet

Current PartRFQ

DS1233MS-3+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 980DS1233MS-3+T&R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS1233MS-3/T&R is determined by strict equivalence across the following critical parameters:

• Single voltage monitoring channel: The substitute must monitor exactly one voltage rail
• Voltage threshold of 2.72V: The threshold must match precisely
• Open-drain or open-collector output: Output configuration must be identical
• Active-low reset logic: Reset signal polarity must be active low
• 200ms minimum reset timeout: Timing specification must be met or exceeded
• 8-SOIC package: Physical form factor must be 8-SOIC (0.154", 3.90mm Width)
• Surface mount technology: Mounting method must be surface mount
• Operating temperature range -40°C to 85°C: Temperature specification must encompass or match this range
• RoHS3 compliance: Environmental compliance status must be maintained

The DS1233MS-3+T&R qualifies as a direct substitute based on identical electrical specifications and packaging, with the distinction being packaging format (Tape & Reel versus alternative packaging).

Parameter Comparison

Engineering Selection Recommendations

The DS1233MS-3+T&R is the direct equivalent substitute for the DS1233MS-3/T&R. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical and mechanical specifications. The primary distinction is product status: the main part is classified as obsolete while the substitute maintains active status.

Selection of the DS1233MS-3+T&R is supported by:

• Identical voltage monitoring and threshold specifications
• Matching output configuration and reset timing
• Equivalent package and mounting specifications
• Maintained RoHS3 compliance and MSL rating
• Active product status ensuring continued availability and support

Frequently Asked Questions (FAQ)

Q: What is the primary difference between DS1233MS-3/T&R and DS1233MS-3+T&R?

A: The electrical and mechanical specifications are identical. The difference lies in product status (obsolete versus active) and packaging format designation. The substitute part maintains active manufacturing status.

Q: Can DS1233MS-3+T&R be used as a direct replacement in existing designs?

A: Yes. The substitute part meets all electrical, mechanical, and environmental specifications of the original part. No circuit modifications are required.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts maintain ROHS3 compliance, identical MSL ratings, and equivalent environmental certifications.

Q: What does the packaging designation difference (T&R versus +T&R) indicate?

A: Both designations refer to Tape & Reel packaging format. The notation difference reflects supplier or documentation conventions but does not affect component functionality or specifications.

Q: Is the 8-SOIC package footprint identical between both parts?

A: Yes. Both parts use the 8-SOIC package with 0.154" width (3.90mm), ensuring identical PCB footprint compatibility.

Q: Are there inventory considerations when selecting between these parts?

A: The substitute part (DS1233MS-3+T&R) maintains active product status with current manufacturing availability, whereas the main part is obsolete. For new designs and ongoing production, the substitute part is the appropriate selection.