CD74HCT03MT NAND Gate IC Equivalent & Substitute Parts

Part Overview

The CD74HCT03MT is a 4-channel, 2-input NAND gate IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This logic gate features open drain outputs and operates across a 4.5V to 5.5V supply voltage range. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts may differ in operating temperature range or packaging configuration while preserving core functional parameters.

Substiute Parts

CD74HCT03MT

Texas InstrumentsIn Stock: 1153CD74HCT03MT Datasheet

Current PartRFQ

CD74HCT03M96

Texas InstrumentsIn Stock: 2650CD74HCT03M96 Datasheet

Parametric EquivalentRFQ

74HCT03D,653

Nexperia USA Inc.In Stock: 1046674HCT03D,653 Datasheet

MFR RecommendedRFQ

74HCT4053D,118

Nexperia USA Inc.In Stock: 8306674HCT4053D,118 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74HCT03MT is determined by the following critical parameters: logic type (NAND gate), number of circuits (4), number of inputs per circuit (2), output configuration (open drain), supply voltage range (4.5V ~ 5.5V), quiescent current (2 µA maximum), output current capability (4mA low), input logic thresholds (0.8V low, 2V high), propagation delay (24ns @ 4.5V, 50pF), and package type (14-SOIC surface mount).

Parts are classified into two categories:

Parametric Equivalents maintain all electrical specifications and operating temperature range (-55°C ~ 125°C) with identical package configuration.

Manufacturer Recommended Substitutes preserve all core electrical parameters but may operate across a different temperature range (-40°C ~ 125°C) or utilize alternative packaging designations (14-SO versus 14-SOIC) while maintaining mechanical compatibility with the 14-SOIC footprint.

The 74HCT4053D,118 is listed in the original part's substitute field but functions as a multiplexer/demultiplexer switch circuit rather than a NAND gate logic device. This part does not qualify as a functional substitute due to fundamentally different circuit topology and application.

Parameter Comparison

Engineering Selection Recommendations

CD74HCT03M96 (Texas Instruments) is the direct parametric equivalent to the CD74HCT03MT. This part is currently in active production status and maintains identical electrical specifications, operating temperature range (-55°C ~ 125°C), and 14-SOIC package configuration. Selection of this part eliminates obsolescence risk while preserving all functional and environmental performance characteristics.

74HCT03D,653 (Nexperia USA Inc.) is a manufacturer-recommended substitute that maintains all core electrical parameters and package footprint compatibility. The operating temperature range is narrower (-40°C ~ 125°C versus -55°C ~ 125°C), which is acceptable for applications not requiring extended low-temperature operation below -40°C. This part is actively manufactured and available in high inventory quantities. The packaging designation (14-SO) is mechanically equivalent to 14-SOIC with identical physical dimensions and pin configuration.

Both substitute parts are ROHS3 compliant with MSL rating of 1 (unlimited moisture sensitivity), matching the original part's compliance profile. Selection between these two options depends on application temperature requirements and supply chain preferences.

Frequently Asked Questions (FAQ)

Q: Can the CD74HCT03M96 be used as a direct replacement for the CD74HCT03MT?

A: Yes. The CD74HCT03M96 is a parametric equivalent with identical electrical specifications, operating temperature range, and 14-SOIC package configuration. No circuit modifications are required.

Q: What is the difference between the CD74HCT03MT and 74HCT03D,653?

A: Both parts are functionally equivalent 4-channel, 2-input NAND gates with open drain outputs. The primary difference is the operating temperature range: CD74HCT03MT operates from -55°C to 125°C, while 74HCT03D,653 operates from -40°C to 125°C. The 74HCT03D,653 is manufactured by Nexperia USA Inc. rather than Texas Instruments. Both use the same 14-SOIC package footprint.

Q: Are the 14-SO and 14-SOIC packages interchangeable?

A: Yes. The 14-SO and 14-SOIC designations refer to the same physical package with identical dimensions (0.154" width, 3.90mm), pin count, and pin spacing. These designations are used interchangeably by different manufacturers.

Q: Why is the 74HCT4053D,118 listed as a substitute but not recommended?

A: The 74HCT4053D,118 is a multiplexer/demultiplexer switch circuit with fundamentally different functionality from the NAND gate logic of the CD74HCT03MT. It cannot serve as a functional substitute despite being listed in the original part's cross-reference field.

Q: What compliance certifications apply to the substitute parts?

A: Both CD74HCT03M96 and 74HCT03D,653 are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (unlimited moisture sensitivity). These certifications match the original CD74HCT03MT specifications.

Q: Is the CD74HCT03M96 available in higher quantities than the 74HCT03D,653?

A: Inventory levels are subject to change. At the time of this documentation, CD74HCT03M96 inventory is 2549 pieces and 74HCT03D,653 inventory is 10400 pieces. Current availability should be verified with the component supplier.

Q: Can either substitute part operate at temperatures below -40°C?

A: The CD74HCT03M96 is rated for operation from -55°C to 125°C and is suitable for extended low-temperature applications. The 74HCT03D,653 is rated from -40°C to 125°C and is not specified for operation below -40°C. Application requirements determine which part is appropriate.