74HC03DB-Q100J Equivalent & Substitute Parts

Part Overview

The 74HC03DB-Q100J is a NAND Gate IC featuring 4 channels with 2 inputs per channel and open drain output configuration in a 14-SSOP package. Manufactured by Nexperia USA Inc., this component operates across a 2V to 6V supply voltage range and is qualified to AEC-Q100 automotive standards. The part is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

74HC03DB-Q100J

Nexperia USA Inc.In Stock: 75374HC03DB-Q100J Datasheet

Current PartRFQ

74HC03PW-Q100J

Nexperia USA Inc.In Stock: 121374HC03PW-Q100J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC03DB-Q100J is determined by strict equivalence across the following critical parameters:

• Logic function: NAND Gate with identical circuit count (4) and input configuration (2 inputs per channel)
• Output configuration: Open drain topology
• Electrical performance: Supply voltage range (2V ~ 6V), quiescent current (2 µA max), output current (5.2mA), input logic levels, and propagation delay (16ns @ 6V, 50pF)
• Environmental qualification: AEC-Q100 automotive grade certification
• Operating temperature range: -40°C ~ 125°C
• Compliance: ROHS3 and REACH status

The 74HC03PW-Q100J meets all functional and electrical requirements. The primary distinction is packaging format: the substitute uses 14-TSSOP (0.173", 4.40mm Width) versus the original 14-SSOP (0.209", 5.30mm Width). Both are surface mount packages with identical pin configurations and electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 74HC03PW-Q100J is the direct functional equivalent for the obsolete 74HC03DB-Q100J. Both components share identical electrical specifications, logic function, and AEC-Q100 automotive qualification. The substitute maintains full compliance with ROHS3 and REACH requirements.

The primary consideration for selection is package footprint compatibility. The 74HC03PW-Q100J uses a narrower 14-TSSOP package (4.40mm width) compared to the original 14-SSOP (5.30mm width). PCB layout modifications may be required if the original design was optimized for the wider SSOP footprint. Pin configuration remains identical between both packages, ensuring electrical compatibility without schematic changes.

The 74HC03PW-Q100J is currently in active production status, providing superior long-term availability compared to the obsolete main part number.

Frequently Asked Questions (FAQ)

Q: Can the 74HC03PW-Q100J be used as a direct replacement for the 74HC03DB-Q100J?

A: Yes. Both parts are electrically identical with matching logic function, supply voltage range, output current, propagation delay, and AEC-Q100 qualification. Pin configuration is identical. The only difference is package format (TSSOP versus SSOP).

Q: What is the difference between 14-SSOP and 14-TSSOP packages?

A: Both are 14-pin surface mount packages with identical pin spacing and electrical characteristics. The TSSOP variant has a narrower body width (4.40mm versus 5.30mm). This may require PCB footprint adjustment if the original design was layout-optimized for the wider SSOP package.

Q: Are there any electrical performance differences between these parts?

A: No. Both components have identical electrical specifications including supply voltage (2V ~ 6V), quiescent current (2 µA max), output current (5.2mA), input logic levels, and propagation delay (16ns @ 6V, 50pF).

Q: Does the 74HC03PW-Q100J meet automotive qualification requirements?

A: Yes. The substitute carries AEC-Q100 automotive grade certification and is ROHS3 compliant, matching the qualification level of the original part.

Q: Why is the original 74HC03DB-Q100J listed as obsolete?

A: The 74HC03DB-Q100J has been discontinued by the manufacturer. The 74HC03PW-Q100J remains in active production and serves as the current equivalent for new designs and production continuity.