DS1233MS-5 Equivalent & Substitute Parts

Part Overview

The DS1233MS-5 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 configuration. The DS1233MS-5 is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain identical electrical performance and package compatibility while offering active product status and current manufacturing support.

Substiute Parts

DS1233MS-5

Analog Devices Inc./Maxim IntegratedIn Stock: 2164DS1233MS-5 Datasheet

Current PartRFQ

DS1233MS-5+

Analog Devices Inc./Maxim IntegratedIn Stock: 5309DS1233MS-5+ Datasheet

DirectRFQ

MCP130T-450I/SN

Microchip TechnologyIn Stock: 3556MCP130T-450I/SN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DS1233MS-5 are qualified based on the following critical parameters that determine functional equivalence:

Electrical Compatibility Criteria:

• Single-channel voltage monitoring capability
• Voltage threshold of 4.375V
• Open-drain or open-collector output configuration
• Active-low reset logic
• Reset timeout minimum of 200ms or lower (lower timeout values remain compatible)
• Operating temperature range of -40°C ~ 85°C or wider

Mechanical Compatibility Criteria:

• 8-SOIC package (0.154", 3.90mm Width)
• Surface mount mounting type
• Identical pin configuration and footprint

Regulatory & Compliance Criteria:

• RoHS3 compliance preferred for new designs
• REACH unaffected status
• EAR99 export classification

Substitutes are grouped into two categories: direct manufacturer equivalents (same manufacturer, active product status) and cross-manufacturer alternatives (different manufacturer, functionally equivalent specifications).

Parameter Comparison

Engineering Selection Recommendations

DS1233MS-5+ (Direct Manufacturer Equivalent): This part is the direct successor to the DS1233MS-5 from Analog Devices Inc./Maxim Integrated. It maintains identical electrical specifications and package configuration while offering active product status and RoHS3 compliance. Selection of DS1233MS-5+ is appropriate for designs requiring continuity with the original manufacturer's product line and for applications where RoHS3 compliance is mandated.

MCP130T-450I/SN (Cross-Manufacturer Alternative): The MCP130T-450I/SN from Microchip Technology provides functional equivalence across all critical electrical parameters. The reset timeout specification of 150ms minimum is lower than the DS1233MS-5 specification of 200ms minimum, which represents improved performance in reset assertion timing. This part is RoHS3 compliant and maintains active product status. Selection of MCP130T-450I/SN is appropriate for new designs, high-volume production requiring multiple qualified sources, and applications where Microchip Technology supply chain relationships are preferred.

Both substitute parts are pin-compatible and footprint-compatible with the original DS1233MS-5, requiring no PCB redesign for implementation.

Frequently Asked Questions (FAQ)

Q: Can DS1233MS-5+ be used as a direct replacement for DS1233MS-5 without PCB modifications?

A: Yes. The DS1233MS-5+ maintains identical pin configuration, package dimensions (8-SOIC, 0.154" width), and electrical specifications. No PCB layout changes are required. The primary difference is product status (active vs. obsolete) and RoHS3 compliance.

Q: What is the functional difference between DS1233MS-5+ and MCP130T-450I/SN?

A: Both parts provide identical voltage monitoring (4.375V threshold), output configuration (open-drain), and reset logic (active-low). The MCP130T-450I/SN specifies a 150ms minimum reset timeout compared to 200ms for DS1233MS-5+. This represents faster reset assertion, which is functionally compatible with designs expecting the longer timeout. Both parts are pin-compatible and footprint-compatible.

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

A: The DS1233MS-5 is RoHS non-compliant. Both DS1233MS-5+ and MCP130T-450I/SN are RoHS3 compliant. All three parts maintain REACH unaffected status and EAR99 export classification. For applications requiring RoHS3 compliance, either substitute part is acceptable.

Q: What is the inventory status of these parts?

A: DS1233MS-5 has 2,117 pieces in stock (obsolete status). DS1233MS-5+ has 5,200 pieces in stock (active status). MCP130T-450I/SN has 3,449 pieces in stock (active status). Availability of active parts (DS1233MS-5+ and MCP130T-450I/SN) is higher and more sustainable for ongoing production.

Q: Can MCP130T-450I/SN be used in existing designs without functional impact?

A: Yes. The MCP130T-450I/SN is pin-compatible and footprint-compatible with the DS1233MS-5. The 150ms reset timeout is shorter than the 200ms specification of the original part, which does not create functional incompatibility. Designs expecting a 200ms timeout will experience faster reset assertion with the MCP130T-450I/SN, which is operationally acceptable.

Q: What packaging options are available for these parts?

A: DS1233MS-5 is supplied in standard packaging (not specified). DS1233MS-5+ is supplied in Tube packaging. MCP130T-450I/SN is supplied in Cut Tape (CT) and Digi-Reel® packaging options. All three parts use the same 8-SOIC package for component placement.