CAT1163WI42 Equivalent & Substitute Parts

Part Overview

The CAT1163WI42 is a supervisor integrated circuit designed for power management applications, specifically functioning as a simple reset/power-on reset controller with open drain or open collector output. This component monitors a single voltage channel with a threshold of 4.25V and provides active high/active low reset functionality with a 130ms minimum timeout.

The CAT1163WI42 is classified as obsolete. Locating equivalent or substitute components is necessary to support legacy system maintenance, design updates, or when original inventory becomes unavailable. Active alternatives with identical electrical and mechanical specifications are available to ensure continued system functionality.

Substiute Parts

CAT1163WI42

onsemiIn Stock: 992CAT1163WI42 Datasheet

Current PartRFQ

N84C163WD42TG

onsemiIn Stock: 820N84C163WD42TG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAT1163WI42 is determined by strict equivalence across the following critical parameters:

• Functional Type: Simple Reset/Power-On Reset supervisor
• Voltage Monitoring: Single channel with 4.25V threshold
• Output Configuration: Open Drain or Open Collector
• Reset Logic: Active High/Active Low capability
• Reset Timeout: 130ms minimum
• Operating Temperature Range: -40°C to 85°C
• Package: 8-SOIC form factor with identical physical dimensions
• Mounting: Surface mount technology

The substitute part N84C163WD42TG meets all these criteria and is manufactured by onsemi, ensuring design and functional compatibility. The primary distinction is product status: the CAT1163WI42 is obsolete, while N84C163WD42TG is active and available in production quantities.

Parameter Comparison

Engineering Selection Recommendations

The N84C163WD42TG is the direct functional equivalent for the obsolete CAT1163WI42. Selection of this substitute is based on:

• Electrical Equivalence: Identical voltage threshold, output configuration, reset logic, and timeout specifications
• Mechanical Compatibility: Identical 8-SOIC package dimensions and surface mount configuration
• Product Availability: Active production status ensures supply chain continuity
• Regulatory Compliance: ROHS3 compliance of the substitute part meets current environmental standards, while both parts maintain REACH Unaffected status
• Thermal Performance: Matching operating temperature range supports equivalent thermal design requirements

The substitute part is suitable for direct replacement in existing designs without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can N84C163WD42TG be used as a direct replacement for CAT1163WI42?

A: Yes. Both parts are functionally and mechanically equivalent. They share identical voltage thresholds, output configurations, reset logic, timeout specifications, operating temperature ranges, and 8-SOIC package dimensions. Direct substitution is supported without circuit redesign.

Q: What is the primary reason for substitution?

A: The CAT1163WI42 is classified as obsolete. The N84C163WD42TG is an active production part from the same manufacturer with identical electrical and mechanical specifications, ensuring continued availability and supply chain support.

Q: Are there packaging differences between these parts?

A: Both parts use 8-SOIC surface mount packaging with identical physical dimensions (0.154" width, 3.90mm). The N84C163WD42TG is supplied in Tape & Reel format, which is standard for active production components. This does not affect electrical or mechanical compatibility.

Q: Do compliance certifications differ between the parts?

A: The N84C163WD42TG carries ROHS3 compliance certification, while the CAT1163WI42 does not specify this status. Both parts maintain REACH Unaffected status. The substitute part meets current environmental regulatory requirements.

Q: Are the reset timeout and voltage threshold specifications identical?

A: Yes. Both parts feature a 4.25V voltage threshold, 130ms minimum reset timeout, and support for active high/active low reset logic. Operating temperature ranges are also identical at -40°C to 85°C.