74F02SC NOR Gate IC Equivalent & Substitute Parts

Part Overview

The 74F02SC is a 4-channel 2-input NOR gate logic IC manufactured by onsemi in a 14-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74F02 series maintains consistent functional and electrical characteristics across multiple manufacturers and packaging variants, enabling direct substitution based on electrical parameter compatibility and mechanical fit requirements.

Substiute Parts

74F02SC

onsemiIn Stock: 355474F02SC Datasheet

Current PartRFQ

SN74F02DR

Texas InstrumentsIn Stock: 15201SN74F02DR Datasheet

DirectRFQ

SN74F02NSR

Texas InstrumentsIn Stock: 3440SN74F02NSR Datasheet

SimilarRFQ

SN74F02D

Texas InstrumentsIn Stock: 1885SN74F02D Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74F02SC is determined by electrical parameter equivalence and mechanical compatibility. All substitute parts maintain identical logic function (4-channel 2-input NOR gate), electrical specifications (supply voltage, output current, propagation delay, input logic levels), and operating temperature range. Substitutes are grouped by packaging configuration and product status:

Direct Manufacturer Equivalent (SN74F02DR): Identical electrical parameters and 14-SOIC package footprint. Active product status with RoHS3 compliance. Tape & Reel packaging.

Similar Manufacturer Equivalent (SN74F02NSR): Identical electrical parameters with 14-SO package variant (0.209" width vs. 0.154" width). Active product status with RoHS3 compliance. Tape & Reel packaging. Package width difference requires PCB footprint verification.

Parametric Equivalent (SN74F02D): Identical electrical parameters and 14-SOIC package footprint. Last Time Buy product status with RoHS3 compliance. Tube packaging.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): SN74F02DR is the primary substitute. It maintains identical electrical specifications, 14-SOIC footprint dimensions (0.154", 3.90mm width), and active product status with RoHS3 compliance. Tape & Reel packaging supports automated assembly processes.

For Alternative Sourcing: SN74F02D provides parametric equivalence with identical footprint and electrical performance. Last Time Buy status indicates limited future availability; procurement should prioritize SN74F02DR for long-term supply chain stability.

For Package Variant Applications: SN74F02NSR is electrically equivalent but uses a wider 14-SO package (0.209" width vs. 0.154" width). This variant is suitable only if PCB layout accommodates the increased package width. Active product status and RoHS3 compliance are maintained.

All substitute parts comply with REACH regulations and carry unlimited moisture sensitivity ratings (MSL 1), matching the original component's environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can SN74F02DR be used as a direct drop-in replacement for 74F02SC?

A: Yes. SN74F02DR is electrically and mechanically equivalent. Both use the 14-SOIC package with identical 0.154" (3.90mm) width, supply voltage range (4.5V ~ 5.5V), output current specifications (1mA/20mA), and propagation delay (5.5ns @ 5V, 50pF). Pin configuration and functional behavior are identical.

Q: What is the difference between SN74F02DR and SN74F02NSR?

A: Both are electrically identical 4-channel 2-input NOR gates with matching electrical parameters. The primary difference is package width: SN74F02DR uses 14-SOIC (0.154" width), while SN74F02NSR uses 14-SO (0.209" width). Verify PCB footprint compatibility before selecting SN74F02NSR.

Q: Why is 74F02SC listed as obsolete?

A: The 74F02SC is an onsemi product that has reached end-of-life status. Texas Instruments maintains active production of equivalent 74F02 variants (SN74F02DR, SN74F02NSR), ensuring continued availability of this logic function.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. SN74F02DR, SN74F02NSR, and SN74F02D are all RoHS3 compliant. The original 74F02SC does not specify RoHS status but carries REACH Unaffected classification, matching all substitutes.

Q: What packaging options are available for the 74F02 NOR gate?

A: SN74F02DR is supplied in Tape & Reel (TR) format for automated assembly. SN74F02D is supplied in Tube packaging for manual handling. Both support the same 14-SOIC footprint (0.154" width). SN74F02NSR uses Tape & Reel with a wider 14-SO package variant.

Q: Can I use SN74F02D if SN74F02DR is unavailable?

A: Yes. SN74F02D is parametrically equivalent with identical electrical specifications and 14-SOIC footprint. However, it carries Last Time Buy status, indicating limited future availability. For new designs or long-term production, prioritize SN74F02DR.

Q: Do all substitutes maintain the same operating temperature range?

A: Yes. All substitute parts operate across 0°C ~ 70°C, matching the original 74F02SC specification.