DS1233-10+ Equivalent & Substitute Parts

Part Overview

The DS1233-10+ is an active-low reset supervisor IC from Analog Devices Inc./Maxim Integrated, part of the EconoReset series. This single-channel power management IC monitors a 4.375V threshold and provides open-drain output control for system reset functions. The device is actively produced and widely stocked, with 21,435 units available in inventory. Substitute parts are identified when equivalent electrical parameters and mechanical compatibility are maintained across the same product category and package specifications.

Key Parameters

Parameter	Value
Voltage Threshold	4.375V
Output Type	Open Drain or Open Collector
Reset Logic	Active Low
Reset Timeout	250ms Minimum
Operating Temperature Range	-40°C ~ 85°C (TA)
Package Type	TO-92-3 (TO-226AA)
Mounting Type	Through Hole
Number of Voltages Monitored	1

Substitute Part Grouping Explanation

Substitution eligibility for the DS1233-10+ is determined by strict equivalence in the following parameters:

Voltage threshold: 4.375V
Output configuration: Open Drain or Open Collector
Reset polarity: Active Low
Operating temperature range: -40°C ~ 85°C (TA)
Package: TO-92-3 (TO-226AA)
Mounting type: Through Hole
Single-channel voltage monitoring

Parts meeting these criteria are classified as direct parametric equivalents. Variations in reset timeout, inventory status, packaging format (Bulk vs. Bag), or manufacturer do not disqualify substitution when all electrical and mechanical parameters align.

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Output Type	Reset Logic	Reset Timeout	Operating Temperature	Package	Product Status	Inventory (Pcs)
DS1233-10+	Analog Devices Inc./Maxim Integrated	4.375V	Open Drain or Open Collector	Active Low	250ms Minimum	-40°C ~ 85°C	TO-92-3	Active	21,435
DS1233D-10+	Analog Devices Inc./Maxim Integrated	4.375V	Open Drain or Open Collector	Active Low	250ms Minimum	-40°C ~ 85°C	TO-92-3	Active	3,300
MCP130-450FI/TO	Microchip Technology	4.375V	Open Drain or Open Collector	Active Low	150ms Minimum	-40°C ~ 85°C	TO-92-3	Active	2,200

Engineering Selection Recommendations

All three parts listed maintain active product status and comply with ROHS3 and REACH requirements. Selection between DS1233-10+, DS1233D-10+, and MCP130-450FI/TO is based on availability and reset timeout specifications.

The DS1233-10+ and DS1233D-10+ are direct parametric equivalents with identical electrical characteristics and 250ms reset timeout. The DS1233-10+ offers higher inventory availability (21,435 units) compared to DS1233D-10+ (3,300 units).

The MCP130-450FI/TO from Microchip Technology meets all core electrical and mechanical requirements but specifies a 150ms minimum reset timeout, which is shorter than the 250ms minimum of the Analog Devices parts. This difference must be evaluated against application timing requirements.

All parts are classified as ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited) and carry identical ECCN and HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can DS1233D-10+ directly replace DS1233-10+ in existing designs?

A: Yes. Both parts share identical voltage threshold (4.375V), output type (Open Drain or Open Collector), reset polarity (Active Low), reset timeout (250ms Minimum), operating temperature range (-40°C ~ 85°C), and package specification (TO-92-3). The difference in base part number does not affect electrical or mechanical compatibility.

Q: Is MCP130-450FI/TO a suitable substitute for DS1233-10+?

A: MCP130-450FI/TO meets all core electrical and mechanical parameters: 4.375V threshold, Open Drain or Open Collector output, Active Low reset, -40°C ~ 85°C operating range, and TO-92-3 package. However, the reset timeout specification differs: MCP130-450FI/TO specifies 150ms Minimum versus 250ms Minimum for DS1233-10+. Applications requiring the full 250ms timeout must verify that 150ms is acceptable for their system design.

Q: What packaging differences exist between these parts?

A: DS1233-10+ and DS1233D-10+ are supplied in Bulk packaging, while MCP130-450FI/TO is supplied in Bag packaging. All three use identical TO-92-3 (TO-226AA) through-hole package format. Packaging format does not affect electrical performance or board-level compatibility.

Q: Are all three parts RoHS compliant?

A: Yes. DS1233-10+, DS1233D-10+, and MCP130-450FI/TO are all ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited). All carry identical REACH Unaffected status.

Q: Which part should be selected based on availability?

A: DS1233-10+ has the highest inventory (21,435 units), followed by DS1233D-10+ (3,300 units) and MCP130-450FI/TO (2,200 units). For applications without reset timeout constraints, DS1233-10+ offers the best availability. For designs requiring the MCP130 series, MCP130-450FI/TO is the specified equivalent.

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