74F02SJ NOR Gate IC Equivalent & Substitute Parts

Part Overview

The 74F02SJ is a 4-channel 2-input NOR gate logic IC manufactured by onsemi in a 14-SOP surface mount package. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The 74F series logic family provides standard TTL-compatible NOR gate functionality with consistent electrical performance across qualified alternatives.

Substiute Parts

74F02SJ

onsemiIn Stock: 236674F02SJ Datasheet

Current PartRFQ

SN74F02NSR

Texas InstrumentsIn Stock: 3440SN74F02NSR Datasheet

DirectRFQ

SN74F02D

Texas InstrumentsIn Stock: 1885SN74F02D Datasheet

SimilarRFQ

SN74F02DR

Texas InstrumentsIn Stock: 15201SN74F02DR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74F02SJ is determined by functional equivalence within the 74F logic family. All qualified substitutes maintain identical logic configuration (4-channel NOR gate with 2 inputs per channel), electrical performance parameters, and supply voltage requirements. Substitutes are grouped by product status and packaging format:

Direct Substitutes (Electrical & Functional Equivalence):

• SN74F02NSR (Texas Instruments) – Active product status
• SN74F02D (Texas Instruments) – Last Time Buy status
• SN74F02DR (Texas Instruments) – Active product status

All substitutes share the following critical parameters with the 74F02SJ:

• 4 NOR gate circuits with 2 inputs each
• 4.5V ~ 5.5V supply voltage range
• 1mA / 20mA output current specifications
• 0.8V / 2V input logic levels
• 5.5ns maximum propagation delay at 5V with 50pF load
• 0°C ~ 70°C operating temperature range
• Surface mount technology
• MSL 1 rating

Parameter Comparison

Engineering Selection Recommendations

For New Designs: SN74F02DR (Texas Instruments) is the preferred selection. This part carries Active product status, ensuring long-term availability and supply chain stability. It is ROHS3 compliant and available in Tape & Reel packaging suitable for automated assembly processes. The 14-SOIC package (0.154", 3.90mm width) represents the current industry standard for this logic family.

For Existing Production (74F02SJ Replacement): SN74F02NSR (Texas Instruments) provides direct functional substitution with Active product status and ROHS3 compliance. This part is available in high inventory quantities and Tape & Reel format for production environments.

For Legacy System Maintenance: SN74F02D (Texas Instruments) remains available under Last Time Buy status. This option is suitable for repair and maintenance applications where existing designs require component-level replacement. Tube packaging is appropriate for lower-volume service operations.

Package Compatibility Consideration: The 74F02SJ uses a 14-SOP package (5.30mm width), while Texas Instruments substitutes use 14-SOIC packages. SN74F02NSR maintains the 5.30mm width specification, providing the closest physical footprint match. SN74F02D and SN74F02DR use the narrower 3.90mm SOIC variant. PCB layout verification is required when transitioning between these package widths.

Frequently Asked Questions (FAQ)

Q: Can SN74F02DR be used as a direct replacement for 74F02SJ? A: Yes. Both parts are functionally equivalent 4-channel 2-input NOR gates with identical electrical specifications, supply voltage range, output current ratings, input logic levels, and propagation delay characteristics. All parameters required for circuit operation are matched.

Q: What is the difference between SN74F02NSR, SN74F02D, and SN74F02DR? A: The three Texas Instruments substitutes are electrically identical. The differences are: (1) Product Status – SN74F02NSR and SN74F02DR are Active; SN74F02D is Last Time Buy; (2) Packaging Format – SN74F02NSR and SN74F02DR are supplied in Tape & Reel; SN74F02D is supplied in Tube; (3) Package Width – SN74F02NSR maintains 5.30mm width matching the original 74F02SJ; SN74F02D and SN74F02DR use 3.90mm width.

Q: Are there any compliance differences between the 74F02SJ and the Texas Instruments substitutes? A: The Texas Instruments substitutes (SN74F02NSR, SN74F02D, SN74F02DR) are ROHS3 compliant. The 74F02SJ compliance status is not specified in the provided data. All parts share identical REACH Unaffected status and EAR99 ECCN classification.

Q: Which substitute should be selected for high-volume production? A: SN74F02DR is recommended for high-volume production. It carries Active product status, ensuring sustained availability, and is supplied in Tape & Reel format optimized for automated pick-and-place assembly. Current inventory is 15,091 pieces.

Q: Is the package width difference between 14-SOP and 14-SOIC critical? A: Package width affects PCB footprint and land pattern design. SN74F02NSR (5.30mm) provides the closest match to the original 74F02SJ (5.30mm). If using SN74F02D or SN74F02DR (3.90mm width), PCB layout must be re-evaluated and re-qualified to ensure proper component placement and solder joint integrity.

Q: What is the Moisture Sensitivity Level (MSL) for all parts? A: All parts, including the 74F02SJ and all Texas Instruments substitutes, carry MSL 1 (Unlimited) rating. This indicates no moisture sensitivity restrictions for storage, handling, or assembly processes.