N84C161WD45TG Equivalent & Substitute Parts

Part Overview

The N84C161WD45TG is a Power Management Integrated Circuit (PMIC) supervisor manufactured by onsemi, designed for simple reset and power-on reset applications. This device monitors a single voltage channel and provides open drain or open collector output control. The part is classified as Last Time Buy, indicating limited future availability. Identifying equivalent and substitute parts is essential for design continuity, inventory management, and long-term product support.

Substiute Parts

N84C161WD45TG

onsemiIn Stock: 942N84C161WD45TG Datasheet

Current PartRFQ

N84C162WD45TG

onsemiIn Stock: 737N84C162WD45TG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the N84C161WD45TG is determined by strict equivalence across the following critical parameters:

• Functional Type: Simple Reset/Power-On Reset supervisor with single voltage channel monitoring
• Electrical Specifications: 4.5V voltage threshold, 130ms minimum reset timeout, active high/active low reset capability
• Output Configuration: Open drain or open collector output
• Package Compatibility: 8-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm width)
• Environmental & Compliance: Operating temperature range -40°C to 85°C, ROHS3 compliance, MSL Level 1

The N84C162WD45TG meets all these criteria and is classified as a parametric equivalent. Both parts share identical electrical characteristics, package specifications, and compliance certifications, making them directly interchangeable in applications requiring single-channel voltage supervision with open drain output.

Parameter Comparison

Engineering Selection Recommendations

The N84C162WD45TG is a direct parametric equivalent to the N84C161WD45TG. Both parts are manufactured by onsemi and maintain identical electrical, mechanical, and environmental specifications. Selection between these parts should be based on:

• Inventory Availability: N84C161WD45TG has 870 pieces in stock; N84C162WD45TG has 704 pieces in stock
• Product Status: Both parts are classified as Last Time Buy, indicating limited future procurement windows
• Compliance Certifications: Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements
• Supply Chain Continuity: Given the Last Time Buy status of both parts, long-term design strategies should evaluate alternative supervisor ICs from current production lines

Frequently Asked Questions (FAQ)

Q: Can N84C162WD45TG be used as a direct replacement for N84C161WD45TG?

A: Yes. Both parts are parametric equivalents with identical voltage thresholds (4.5V), reset timeout specifications (130ms minimum), output configurations (open drain/open collector), package types (8-SOIC), and operating temperature ranges (-40°C to 85°C). No circuit modifications are required.

Q: Are there any differences in pin configuration between these parts?

A: No. Both parts use the same 8-SOIC package with identical physical dimensions (0.154", 3.90mm width). PCB layouts and footprints are fully compatible.

Q: What is the significance of the Last Time Buy status?

A: Last Time Buy indicates that onsemi will discontinue production of these parts. Customers should plan for future alternatives and consider stocking inventory if long-term product support is required.

Q: Do both parts meet the same compliance standards?

A: Yes. Both N84C161WD45TG and N84C162WD45TG are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 (unlimited moisture sensitivity). They meet identical environmental and regulatory requirements.

Q: Which part should be selected for new designs?

A: Given the Last Time Buy status of both parts, new designs should evaluate alternative supervisor ICs from onsemi's current production portfolio to ensure long-term availability and support.