ZSM330C Equivalent & Substitute Parts

Part Overview

The ZSM330C is a single-channel power management supervisor IC manufactured by Diodes Incorporated, designed for simple reset and power-on reset applications. This device features an open drain or open collector output with active low reset functionality and operates across an industrial temperature range of -40°C to 85°C. The ZSM330C is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

ZSM330C

Diodes IncorporatedIn Stock: 1140ZSM330C Datasheet

Current PartRFQ

MCP131-315E/TO

Microchip TechnologyIn Stock: 1258MCP131-315E/TO Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ZSM330C is determined by strict alignment of the following critical parameters:

• Functional Type: Simple Reset/Power-On Reset supervisor IC
• Channel Configuration: Single-channel voltage monitoring
• Voltage Threshold: 3.08V
• Output Configuration: Open Drain or Open Collector
• Reset Logic: Active Low
• Package Type: TO-92-3 (TO-226AA) through-hole mounting
• Compliance Standards: ROHS3 Compliant, REACH Unaffected

The MCP131-315E/TO from Microchip Technology meets all critical functional and physical parameters required for direct substitution. Both devices share identical voltage threshold specifications, output configurations, reset logic, and package form factors, enabling pin-compatible replacement in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The MCP131-315E/TO is the qualified substitute for the obsolete ZSM330C. Both devices maintain identical electrical specifications for voltage threshold (3.08V), output configuration (open drain/open collector), reset logic (active low), and physical packaging (TO-92-3). The MCP131-315E/TO carries active product status from Microchip Technology, ensuring continued availability and manufacturing support. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and legacy system support. The extended operating temperature range of the MCP131-315E/TO (-40°C to 125°C versus -40°C to 85°C) provides additional thermal margin for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the MCP131-315E/TO directly replace the ZSM330C in existing designs?

A: Yes. Both devices share identical voltage threshold (3.08V), output type (open drain/open collector), reset logic (active low), and TO-92-3 package configuration, enabling direct pin-compatible substitution without circuit modification.

Q: What is the primary reason for substitution?

A: The ZSM330C is classified as obsolete. The MCP131-315E/TO provides equivalent functionality with active product status and ongoing manufacturer support.

Q: Are there differences in reset timeout specifications?

A: The ZSM330C specifies 2.2µs typical propagation delay, while the MCP131-315E/TO specifies 80ms minimum reset timeout. These represent different measurement parameters and do not affect functional compatibility in reset circuit applications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the ZSM330C and MCP131-315E/TO are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings.

Q: What is the temperature operating range difference?

A: The ZSM330C operates from -40°C to 85°C, while the MCP131-315E/TO operates from -40°C to 125°C. The extended range of the MCP131-315E/TO provides additional thermal headroom for applications requiring higher temperature operation.

Q: Are the packages physically identical?

A: Yes. Both devices use TO-226-3 and TO-92-3 (TO-226AA) through-hole packages, ensuring mechanical compatibility in PCB layouts designed for the ZSM330C.