SN74AHCT02PW NOR Gate IC Equivalent & Substitute Parts

Part Overview

The SN74AHCT02PW is a 4-channel, 2-input NOR gate logic IC manufactured by Texas Instruments in a 14-TSSOP surface mount package. This part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The SN74AHCT02PW operates within the 4.5V to 5.5V supply voltage range and is suitable for general-purpose digital logic applications requiring NOR gate functionality.

Substiute Parts

SN74AHCT02PW

Texas InstrumentsIn Stock: 1810SN74AHCT02PW Datasheet

Current PartRFQ

SN74AHCT02PWR

Texas InstrumentsIn Stock: 4634SN74AHCT02PWR Datasheet

DirectRFQ

74AHCT02PW,118

Nexperia USA Inc.In Stock: 824674AHCT02PW,118 Datasheet

UpgradeRFQ

74VHCT02PW,118

Nexperia USA Inc.In Stock: 214474VHCT02PW,118 Datasheet

UpgradeRFQ

74AHCT02PW-Q100J

Nexperia USA Inc.In Stock: 102474AHCT02PW-Q100J Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74AHCT02PW is determined by strict equivalence across the following critical parameters:

• Logic configuration: 4-channel, 2-input NOR gate
• Electrical specifications: 4.5V ~ 5.5V supply voltage, 2 µA quiescent current, 8mA output drive capability
• Timing characteristics: 7.5ns maximum propagation delay at 5V with 50pF load
• Input/output logic levels: 0.8V low threshold, 2V high threshold
• Package format: 14-TSSOP surface mount
• Environmental compliance: ROHS3, MSL 1

Substitute parts are grouped by product status and packaging configuration. Direct substitutes maintain identical electrical and mechanical specifications. Upgrade substitutes offer extended operating temperature ranges or automotive-grade qualifications while maintaining full electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

SN74AHCT02PWR is the primary direct substitute from Texas Instruments. This part maintains identical electrical and thermal specifications to the original SN74AHCT02PW while offering active product status and Tape & Reel packaging for production environments. Current inventory of 4597 units supports immediate availability.

74AHCT02PW,118 (Nexperia USA Inc.) provides an active alternative with extended operating temperature range (-40°C ~ 125°C) compared to the original specification (-40°C ~ 85°C). This upgrade is suitable for applications requiring higher temperature operation while maintaining all other electrical parameters. Inventory of 8159 units ensures supply continuity.

74VHCT02PW,118 (Nexperia USA Inc.) represents a series variant within the same logic family. The 74VHCT series maintains electrical equivalence with identical propagation delay, output drive, and logic thresholds. Extended temperature range (-40°C ~ 125°C) and active product status make this suitable for demanding applications. Inventory of 2068 units is available.

74AHCT02PW-Q100J (Nexperia USA Inc.) is the manufacturer-recommended substitute with automotive-grade qualification (AEC-Q100). This part is appropriate for automotive and high-reliability applications requiring extended temperature operation (-40°C ~ 125°C). All electrical specifications remain equivalent to the original part. Inventory of 970 units supports automotive production requirements.

For standard industrial applications, SN74AHCT02PWR or 74AHCT02PW,118 are appropriate selections. For automotive or high-reliability applications, 74AHCT02PW-Q100J is the specified choice. All substitutes are ROHS3 compliant and MSL 1 rated.

Frequently Asked Questions (FAQ)

Q: Can SN74AHCT02PWR be used as a direct replacement for SN74AHCT02PW?

A: Yes. SN74AHCT02PWR is electrically and mechanically identical to SN74AHCT02PW. Both parts share the same logic configuration (4-channel, 2-input NOR gate), electrical specifications (4.5V ~ 5.5V supply, 7.5ns propagation delay), and 14-TSSOP package. The primary difference is packaging format (Tape & Reel versus Tube) and product status (Active versus Discontinued).

Q: What is the difference between 74AHCT02PW,118 and 74VHCT02PW,118?

A: Both parts are electrically equivalent with identical logic function, propagation delay, output drive capability, and input/output thresholds. The primary distinction is the logic series designation (74AHCT versus 74VHCT). Both offer extended operating temperature range (-40°C ~ 125°C) and are manufactured by Nexperia USA Inc. in Tape & Reel packaging.

Q: Is 74AHCT02PW-Q100J suitable for non-automotive applications?

A: Yes. 74AHCT02PW-Q100J maintains full electrical equivalence with the original SN74AHCT02PW and can be used in any application compatible with the base specifications. The AEC-Q100 automotive qualification and extended temperature range (-40°C ~ 125°C) represent additional capabilities that do not restrict use in standard industrial or commercial applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (SN74AHCT02PWR, 74AHCT02PW,118, 74VHCT02PW,118, and 74AHCT02PW-Q100J) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What packaging formats are available for substitutes?

A: SN74AHCT02PW is supplied in Tube packaging. All active substitute parts are supplied in Tape & Reel (TR) format, which is standard for production environments. Tape & Reel packaging is compatible with automated assembly equipment and provides better supply chain management for high-volume production.

Q: Can I mix different substitute parts in the same production run?

A: Yes. All substitute parts are electrically and mechanically equivalent within the 14-TSSOP package format. However, maintaining consistent part sourcing from a single manufacturer or part number is recommended for traceability and quality control documentation purposes.