SN74HCT02NG4 Equivalent & Substitute Parts

Part Overview

The SN74HCT02NG4 is a NOR Gate IC with 4 channels and 2 inputs per channel, packaged in a 14-PDIP through-hole configuration. This component is discontinued at DiGi Electronics, making substitute parts necessary for ongoing design requirements and production needs. The SN74HCT02 series maintains consistent functional and electrical characteristics across packaging variants, enabling direct substitution based on mechanical and supply chain availability.

Substiute Parts

SN74HCT02NG4

Texas InstrumentsIn Stock: 1272SN74HCT02NG4 Datasheet

Current PartRFQ

SN74HCT02N

Texas InstrumentsIn Stock: 4327SN74HCT02N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74HCT02NG4 is determined by the following criteria:

Functional Equivalence: All substitute parts must maintain the same logic type (NOR Gate), circuit count (4 channels), and input configuration (2 inputs per channel).

Electrical Compatibility: Supply voltage range (4.5V ~ 5.5V), quiescent current (2 µA max), output current ratings (4mA), input logic levels, propagation delay (18ns @ 5.5V, 50pF), and operating temperature range (-40°C ~ 85°C) must remain identical.

Mechanical Compatibility: The 14-DIP through-hole package (0.300", 7.62mm) is the primary mechanical constraint. Substitutes must use the same package footprint and mounting type.

Regulatory Compliance: All substitute parts must maintain ROHS3 compliance and REACH unaffected status.

The SN74HCT02N qualifies as a direct substitute based on these parameters, with the primary difference being packaging format (Tube vs. standard packaging) and product status (Active vs. Discontinued).

Parameter Comparison

Engineering Selection Recommendations

The SN74HCT02N is the primary substitute for the SN74HCT02NG4. Both parts are manufactured by Texas Instruments and share identical electrical and mechanical specifications. The SN74HCT02N maintains active product status, ensuring continued availability and supply chain reliability. Both parts comply with ROHS3 requirements and REACH regulations, meeting current environmental and regulatory standards.

Selection between these parts should be based on packaging requirements and inventory availability. The SN74HCT02N in Tube packaging is suitable for production environments requiring bulk component handling, while the SN74HCT02NG4 standard packaging may be preferred for smaller quantity applications. The electrical performance and functional behavior are equivalent across both variants.

Frequently Asked Questions (FAQ)

Q: Can the SN74HCT02N directly replace the SN74HCT02NG4 in existing designs?

A: Yes. Both parts share identical electrical specifications, logic configuration, and 14-DIP package footprint. No circuit modifications are required for substitution.

Q: What is the primary difference between these two part numbers?

A: The main difference is product status and packaging format. The SN74HCT02NG4 is discontinued, while the SN74HCT02N is active. The SN74HCT02N is supplied in Tube packaging, whereas the SN74HCT02NG4 uses standard packaging.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain ROHS3 compliance and REACH unaffected status. Regulatory requirements are identical.

Q: What are the critical parameters for substitution compatibility?

A: The 14-DIP through-hole package, 4.5V ~ 5.5V supply voltage range, 4-channel NOR gate configuration with 2 inputs per channel, and -40°C ~ 85°C operating temperature range are the primary compatibility criteria.

Q: Is the propagation delay specification identical between parts?

A: Yes. Both parts specify 18ns maximum propagation delay at 5.5V with 50pF load, ensuring equivalent timing performance in digital logic applications.