CAT1163WI25 Equivalent & Substitute Parts

Part Overview

The CAT1163WI25 is a supervisor integrated circuit designed for power management applications, specifically functioning as a Simple Reset/Power-On Reset device with open drain or open collector output configuration. This component monitors a single voltage channel and provides active high/active low reset functionality with a 130ms minimum reset timeout.

The CAT1163WI25 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this supervisor IC.

Substiute Parts

CAT1163WI25

onsemiIn Stock: 762CAT1163WI25 Datasheet

Current PartRFQ

N84C163WD25TG

onsemiIn Stock: 989N84C163WD25TG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAT1163WI25 is determined by strict equivalence across the following critical parameters:

• Functional Type: Simple Reset/Power-On Reset supervisor with single voltage channel monitoring
• Voltage Threshold: 2.55V monitoring threshold
• Output Type: Open Drain or Open Collector configuration
• Reset Behavior: Active High/Active Low reset logic with 130ms minimum timeout
• Package: 8-SOIC form factor with identical physical dimensions (0.154", 3.90mm Width)
• Operating Temperature: -40°C to 85°C ambient temperature range
• Mounting: Surface mount technology

The substitute part N84C163WD25TG maintains electrical and mechanical compatibility across all specified parameters, enabling direct functional replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The N84C163WD25TG is a direct functional equivalent to the obsolete CAT1163WI25. Selection of this substitute is supported by:

• Electrical Equivalence: All critical electrical parameters including voltage threshold, output configuration, reset logic, and timeout specifications are identical.
• Mechanical Compatibility: Package type, form factor, and mounting method are identical, enabling direct PCB-level replacement without layout modifications.
• Active Product Status: N84C163WD25TG maintains active production status, ensuring long-term availability and supply chain continuity.
• Regulatory Compliance: The substitute meets ROHS3 compliance requirements and maintains REACH unaffected status, satisfying current environmental and regulatory standards.
• Packaging Consideration: The substitute is supplied in Tape & Reel format, which is standard for production environments and offers advantages in automated assembly processes compared to bulk packaging.

Frequently Asked Questions (FAQ)

Q: Can N84C163WD25TG be used as a direct replacement for CAT1163WI25 on existing PCBs?

A: Yes. The N84C163WD25TG is electrically and mechanically equivalent. Both components share identical package dimensions (8-SOIC), pinout, voltage threshold (2.55V), output configuration (open drain/open collector), reset logic (active high/active low), and operating temperature range (-40°C to 85°C). No PCB modifications are required.

Q: What is the primary difference between CAT1163WI25 and N84C163WD25TG?

A: The primary differences are product status and packaging format. CAT1163WI25 is obsolete and supplied in bulk packaging, while N84C163WD25TG is an active product supplied in Tape & Reel format. Additionally, N84C163WD25TG meets ROHS3 compliance, whereas the original part does not specify RoHS status.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts are specified with identical electrical characteristics: 1-channel voltage monitoring at 2.55V threshold, 130ms minimum reset timeout, active high/active low reset logic, and open drain/open collector output configuration.

Q: Does the Tape & Reel packaging of N84C163WD25TG affect compatibility?

A: No. Tape & Reel packaging is a supply format that does not affect the component's electrical or mechanical characteristics. The individual component specifications and performance remain identical to bulk-packaged versions.

Q: Is N84C163WD25TG suitable for new designs?

A: Yes. N84C163WD25TG is an active product with current production status, making it suitable for both replacement applications and new design implementations. It meets current regulatory standards including ROHS3 compliance.