SN74AC04NS Equivalent & Substitute Parts

Part Overview

The SN74AC04NS is a 6-channel inverter logic IC manufactured by Texas Instruments in a 14-SO surface mount package. This component performs basic logic inversion operations across six independent channels, each with a single input. The SN74AC04NS is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and procurement.

Substiute Parts

SN74AC04NS

Texas InstrumentsIn Stock: 1539SN74AC04NS Datasheet

Current PartRFQ

SN74AC04NSR

Texas InstrumentsIn Stock: 4871SN74AC04NSR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SN74AC04NSR qualifies as a direct substitute for the SN74AC04NS based on the following critical parameters:

• Logic Function: Both parts implement identical 6-channel inverter logic with single inputs per channel
• Electrical Performance: Supply voltage range (2V ~ 6V), quiescent current (2 µA max), output current (24mA), and propagation delay (7ns @ 5V, 50pF) are identical
• Package Compatibility: Both use 14-SOIC surface mount packaging with identical physical dimensions (0.209", 5.30mm width)
• Operating Temperature: Both rated for -40°C ~ 85°C
• Compliance: Both are ROHS3 compliant with MSL 1 (Unlimited) and REACH unaffected status

The primary difference is packaging format: SN74AC04NS is supplied in Tube packaging, while SN74AC04NSR is supplied in Tape & Reel (TR) format. Additionally, SN74AC04NSR maintains Active product status with higher inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The SN74AC04NSR is the direct equivalent substitute for the discontinued SN74AC04NS. Both parts meet identical electrical and mechanical specifications, ensuring functional compatibility in existing designs without circuit modification.

Selection between these parts depends on procurement requirements:

• SN74AC04NSR is the preferred choice for new procurement due to Active product status and higher inventory availability (4790 Pcs in stock versus 1430 Pcs for the original part)
• Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements
• Packaging format difference (Tube versus Tape & Reel) affects handling and assembly processes but does not impact electrical performance or PCB-level compatibility

Frequently Asked Questions (FAQ)

Q: Can SN74AC04NSR directly replace SN74AC04NS in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The 14-SOIC package dimensions, pin configuration, and all electrical parameters are equivalent. No circuit redesign is required.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging supplies components in plastic tubes suitable for manual handling and small-quantity assembly. Tape & Reel packaging supplies components on continuous tape wound on reels, optimized for automated pick-and-place assembly equipment. Both formats contain identical components with no electrical differences.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both SN74AC04NS and SN74AC04NSR are ROHS3 compliant, REACH unaffected, and carry identical MSL 1 (Unlimited) moisture sensitivity ratings.

Q: Why is SN74AC04NS discontinued?

A: Product discontinuation at DiGi Electronics reflects supplier inventory management decisions. The SN74AC04NSR remains in active production by Texas Instruments and serves as the current equivalent for ongoing procurement.

Q: What are the critical electrical parameters for substitution?

A: Supply voltage (2V ~ 6V), logic function (6-channel inverter), output current capability (24mA), propagation delay (7ns @ 5V, 50pF), and operating temperature range (-40°C ~ 85°C) must remain constant. Both parts meet these requirements identically.