74HC4002DB,112 Equivalent & Substitute Parts

Part Overview

The 74HC4002DB,112 is a NOR Gate IC featuring 2 channels with 4 inputs per channel, packaged in a 14-SSOP surface mount configuration. Manufactured by Nexperia USA Inc., this logic component operates across a 2V to 6V supply voltage range with a maximum propagation delay of 17ns at 6V with 50pF load. The part is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

74HC4002DB,112

Nexperia USA Inc.In Stock: 104374HC4002DB,112 Datasheet

Current PartRFQ

74HC4002PW,118

Nexperia USA Inc.In Stock: 242874HC4002PW,118 Datasheet

SimilarRFQ

CD74HC4002PW

Texas InstrumentsIn Stock: 1515CD74HC4002PW Datasheet

SimilarRFQ

CD74HC4002PWR

Texas InstrumentsIn Stock: 2588CD74HC4002PWR Datasheet

SimilarRFQ

CD74HC4002PWT

Texas InstrumentsIn Stock: 822CD74HC4002PWT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC4002DB,112 is determined by strict equivalence across the following critical parameters:

• Logic function: NOR Gate with identical 2-channel, 4-input configuration
• Electrical specifications: Voltage supply range (2V ~ 6V), quiescent current (2 µA max), output current (5.2mA), input logic levels, and propagation delay (17ns @ 6V, 50pF)
• Operating temperature range compatibility
• RoHS3 compliance and MSL rating
• Surface mount technology requirement

Substitute parts are grouped by package type (14-SSOP vs. 14-TSSOP) and product status (active vs. discontinued). All identified substitutes maintain identical electrical performance and functional specifications, differing only in packaging format and manufacturer source.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the 74HC4002DB,112, the following substitution path is recommended based on product status and compliance:

Primary Recommendation: CD74HC4002PWR (Texas Instruments) This part maintains active product status with full ROHS3 compliance and MSL 1 rating. The extended operating temperature range (-55°C ~ 125°C) provides additional margin beyond the original specification. Packaging is 14-TSSOP with Tape & Reel availability, suitable for automated assembly processes.

Secondary Recommendation: 74HC4002PW,118 (Nexperia USA Inc.) This Nexperia part remains active and maintains the same manufacturer lineage as the original component. It provides identical electrical performance with 14-TSSOP packaging and Tape & Reel format. Operating temperature range matches the original specification at -40°C ~ 125°C.

Alternative Options: CD74HC4002PW and CD74HC4002PWT (Texas Instruments) Both parts are discontinued at DiGi Electronics but remain available through alternative distribution channels. These options are electrically equivalent with extended temperature range specifications. CD74HC4002PW is supplied in Tube packaging, while CD74HC4002PWT packaging format is not specified.

Package Consideration: The original 74HC4002DB,112 uses 14-SSOP packaging (5.30mm width). All substitute parts use 14-TSSOP packaging (4.40mm width). PCB layout modifications are required to accommodate the narrower package footprint. Pin configuration and electrical connectivity remain identical.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 74HC4002DB,112 with 74HC4002PW,118 on my PCB? A: Electrical substitution is direct due to identical pin configuration and functional specifications. However, physical PCB layout modification is required because 74HC4002PW,118 uses 14-TSSOP packaging (4.40mm width) versus the original 14-SSOP packaging (5.30mm width). The footprint is narrower and requires updated land pattern design.

Q: What is the difference between 14-SSOP and 14-TSSOP packages? A: Both are 14-pin surface mount packages with identical pin pitch and electrical connectivity. The primary difference is package width: 14-SSOP measures 5.30mm while 14-TSSOP measures 4.40mm. This dimensional difference requires PCB footprint redesign but does not affect electrical performance or signal integrity.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All identified substitute parts (74HC4002PW,118, CD74HC4002PW, CD74HC4002PWR, and CD74HC4002PWT) maintain ROHS3 compliance with MSL 1 rating, matching the original 74HC4002DB,112 specification.

Q: Which substitute part has the best availability? A: CD74HC4002PWR (Texas Instruments) maintains active product status with 2561 pieces in stock. 74HC4002PW,118 (Nexperia) is also active with 2381 pieces available. Both parts provide reliable long-term supply continuity.

Q: Does the extended temperature range of Texas Instruments parts affect my design? A: No. The extended operating temperature range (-55°C ~ 125°C) on Texas Instruments parts is a superset of the original specification (-40°C ~ 125°C). This provides additional operational margin without requiring design changes. All other electrical parameters remain identical.

Q: Can I use CD74HC4002PW or CD74HC4002PWT if they are discontinued at DiGi Electronics? A: These parts are discontinued at DiGi Electronics but may remain available through alternative electronic component distributors. Verify current availability and lead times through your supply chain before committing to these options. Active alternatives (CD74HC4002PWR and 74HC4002PW,118) are recommended for new designs.