DS1233-10 Equivalent & Substitute Parts

Part Overview

The DS1233-10 is a single-channel power supply supervisor IC from Analog Devices Inc./Maxim Integrated, part of the EconoReset series. This through-hole mounted component provides open-drain reset functionality with a 4.375V threshold and 250ms minimum reset timeout. The DS1233-10 is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Substitute parts must maintain identical electrical parameters and mechanical compatibility to ensure direct replacement capability.

Substiute Parts

DS1233-10

Analog Devices Inc./Maxim IntegratedIn Stock: 4766DS1233-10 Datasheet

Current PartRFQ

DS1233-10+

Analog Devices Inc./Maxim IntegratedIn Stock: 21500DS1233-10+ Datasheet

DirectRFQ

DS1233D-10+

Analog Devices Inc./Maxim IntegratedIn Stock: 3388DS1233D-10+ Datasheet

Parametric EquivalentRFQ

MCP130-450FI/TO

Microchip TechnologyIn Stock: 2219MCP130-450FI/TO Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DS1233-10 are classified based on substitution type and electrical compatibility:

Direct Manufacturer Substitutes (Same Base Series): DS1233-10+ and DS1233D-10+ are direct variants from Analog Devices Inc./Maxim Integrated. These parts maintain identical electrical specifications including 4.375V threshold, active-low reset, and 250ms minimum reset timeout. The primary distinction is product status: DS1233-10+ is active with RoHS3 compliance, while the original DS1233-10 is obsolete and RoHS non-compliant.

Parametric Equivalent (Cross-Manufacturer): MCP130-450FI/TO from Microchip Technology is a parametric equivalent supervisor IC. It matches all critical electrical parameters: single-channel monitoring, 4.375V threshold, open-drain output, active-low reset, and identical operating temperature range. The reset timeout differs at 150ms minimum versus 250ms minimum for the DS1233-10, representing a functional variation within acceptable supervisor IC tolerances. Package and mounting type are identical (TO-92-3, through-hole).

Substitution eligibility is determined by:

• Identical voltage threshold (4.375V)
• Identical output configuration (open-drain/open-collector)
• Identical reset polarity (active low)
• Compatible package and mounting type (TO-92-3, through-hole)
• Operating temperature range coverage (-40°C ~ 85°C)

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): DS1233-10+ is the primary substitute. It maintains complete electrical and mechanical compatibility with the obsolete DS1233-10 while offering active product status and RoHS3 compliance. This part is suitable for new designs and production continuity without circuit modification.

Alternative Direct Replacement: DS1233D-10+ provides identical electrical specifications and active product status with RoHS3 compliance. Selection between DS1233-10+ and DS1233D-10+ depends on packaging preference (bulk versus tape-and-reel availability) and inventory requirements.

Cross-Manufacturer Equivalent: MCP130-450FI/TO from Microchip Technology is electrically compatible with a single functional difference: 150ms minimum reset timeout versus 250ms for the DS1233-10. This part is suitable for applications where the shorter reset timeout does not conflict with system requirements. Cross-manufacturer substitution requires verification that the reduced reset timeout meets circuit timing specifications.

All substitute parts maintain identical voltage threshold, output configuration, reset polarity, package type, and operating temperature range. Selection should prioritize active product status and RoHS3 compliance for regulatory and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can DS1233-10+ be used as a direct replacement for DS1233-10?

A: Yes. DS1233-10+ is a direct substitute with identical electrical specifications (4.375V threshold, active-low reset, 250ms timeout) and mechanical compatibility (TO-92-3 package, through-hole mounting). The primary advantage is active product status and RoHS3 compliance compared to the obsolete, non-compliant DS1233-10.

Q: What is the difference between DS1233-10+ and DS1233D-10+?

A: Both parts are electrically identical with matching voltage thresholds, output types, and reset timeouts. The difference lies in packaging format: DS1233-10+ is supplied in bulk, while DS1233D-10+ is available in tape-and-reel format. Both are active products with RoHS3 compliance.

Q: Can MCP130-450FI/TO replace DS1233-10 in all applications?

A: MCP130-450FI/TO is a parametric equivalent with identical voltage threshold, output type, and operating temperature range. The reset timeout is 150ms minimum instead of 250ms. This part is suitable for applications where the shorter reset timeout does not create timing conflicts. Circuit-level verification is required to confirm compatibility.

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

A: Yes. All substitute parts use the TO-92-3 package (TO-226-3 designation) with through-hole mounting, ensuring mechanical compatibility and direct PCB mounting without modification.

Q: What compliance certifications apply to substitute parts?

A: DS1233-10+, DS1233D-10+, and MCP130-450FI/TO are all RoHS3 compliant and REACH unaffected. The original DS1233-10 is RoHS non-compliant. For new designs and regulated applications, substitute parts with active compliance status are required.

Q: Does the reset timeout difference affect circuit design?

A: Reset timeout determines the minimum duration the reset output remains active after power supply stabilization. DS1233-10 and its direct substitutes (DS1233-10+, DS1233D-10+) provide 250ms minimum. MCP130-450FI/TO provides 150ms minimum. Applications requiring longer reset assertion periods must use the 250ms variants. Applications tolerant of shorter reset periods can use MCP130-450FI/TO.