SN74AHCT04D Equivalent & Substitute Parts

Part Overview

The SN74AHCT04D is a 6-channel inverter logic IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This part is currently discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and production requirements. The 74AHCT04 logic family provides standard inverter functionality across industrial and commercial applications with 4.5V to 5.5V supply voltage operation.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage - Supply	4.5V ~ 5.5V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	8mA, 8mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Max Propagation Delay @ V, Max CL	7.7ns @ 5V, 50pF
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the SN74AHCT04D is determined by strict equivalence across the following parameters: logic type (inverter), circuit count (6 channels), input count (1 per channel), supply voltage range (4.5V ~ 5.5V), output current capability (8mA high and low), input logic thresholds (0.8V low, 2V high), propagation delay (7.7ns @ 5V, 50pF), operating temperature range (-40°C ~ 125°C), and surface mount packaging in 14-SOIC form factor.

The substitute parts listed maintain identical electrical specifications and mechanical compatibility. Differences exist only in packaging format (Cut Tape vs. Tape & Reel), manufacturer (Texas Instruments vs. Nexperia USA Inc.), and product status (discontinued vs. active). The automotive-qualified variant includes AEC-Q100 certification for applications requiring automotive-grade components.

Parameter Comparison

Parameter	SN74AHCT04D	SN74AHCT04DR	74AHCT04D-Q100J	74AHCT04D,118
Manufacturer	Texas Instruments	Texas Instruments	Nexperia USA Inc.	Nexperia USA Inc.
Product Status	Discontinued	Active	Active	Active
Logic Type	Inverter	Inverter	Inverter	Inverter
Number of Circuits	6	6	6	6
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Current - Quiescent (Max)	2 µA	2 µA	2 µA	2 µA
Current - Output High, Low	8mA, 8mA	8mA, 8mA	8mA, 8mA	8mA, 8mA
Input Logic Level - Low	0.8V	0.8V	0.8V	0.8V
Input Logic Level - High	2V	2V	2V	2V
Max Propagation Delay @ V, Max CL	7.7ns @ 5V, 50pF	7.7ns @ 5V, 50pF	7.7ns @ 5V, 50pF	7.7ns @ 5V, 50pF
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Packaging Format	Tube	Cut Tape & Digi-Reel	Tape & Reel	Tape & Reel
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Qualification	None	None	AEC-Q100	None

Engineering Selection Recommendations

For standard industrial and commercial applications, SN74AHCT04DR provides direct substitution with active product status and higher inventory availability (21,300 units) compared to the discontinued SN74AHCT04D. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications.

For automotive applications or designs requiring automotive-grade component qualification, 74AHCT04D-Q100J is the appropriate selection. This Nexperia USA Inc. part carries AEC-Q100 qualification and active product status, suitable for automotive-grade system requirements.

The 74AHCT04D,118 variant from Nexperia USA Inc. provides an alternative active source with identical electrical performance for non-automotive applications.

All substitute parts maintain ROHS3 compliance, MSL Level 1 (unlimited moisture sensitivity), and identical pin-to-pin compatibility within the 14-SOIC package footprint.

Frequently Asked Questions (FAQ)

Q: Can SN74AHCT04DR be used as a direct replacement for SN74AHCT04D?

A: Yes. Both parts are electrically and mechanically identical. SN74AHCT04DR differs only in packaging format (Cut Tape & Digi-Reel versus Tube) and product status (Active versus Discontinued). Pin configuration, electrical specifications, and 14-SOIC package dimensions are identical.

Q: What is the difference between the standard 74AHCT04D,118 and the automotive-qualified 74AHCT04D-Q100J?

A: Both parts are electrically identical with matching specifications. The 74AHCT04D-Q100J includes AEC-Q100 automotive qualification and is sourced from Nexperia USA Inc., making it suitable for automotive applications. The 74AHCT04D,118 is a standard industrial-grade variant without automotive qualification.

Q: Are all substitute parts compatible with existing PCB designs for SN74AHCT04D?

A: Yes. All substitute parts use the 14-SOIC surface mount package with identical pin assignments and footprint dimensions (0.154" width, 3.90mm). PCB layouts and solder reflow profiles require no modification.

Q: What inventory considerations apply when selecting between substitute parts?

A: SN74AHCT04DR has the highest inventory availability (21,300 units). The 74AHCT04D,118 and 74AHCT04D-Q100J have lower inventory levels (744 and 1,046 units respectively). For high-volume production, SN74AHCT04DR is the recommended choice based on supply availability.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All parts listed are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 (unlimited) moisture sensitivity rating. Compliance certifications are identical across all variants except for automotive qualification, which applies only to 74AHCT04D-Q100J.

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