CD4049UBNS Equivalent & Substitute Parts

Part Overview

The CD4049UBNS is a 6-channel inverter logic integrated circuit manufactured by Texas Instruments in a 16-SO surface mount package. This device is classified as discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design requirements and procurement planning. The CD4049UBNS operates across a wide supply voltage range of 3V to 18V and is suitable for applications requiring logic inversion in CMOS-based circuits. Identification of compatible substitute parts ensures design continuity and component availability.

Substiute Parts

CD4049UBNS

Texas InstrumentsIn Stock: 889CD4049UBNS Datasheet

Current PartRFQ

CD4049UBNSR

Texas InstrumentsIn Stock: 16263CD4049UBNSR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4049UBNS is determined by the following critical parameters:

Core Functional Parameters:

• Logic Type: Inverter
• Number of Circuits: 6
• Voltage - Supply Range: 3V ~ 18V
• Operating Temperature Range: -55°C ~ 125°C

Physical Compatibility Parameters:

• Package / Case: 16-SOIC (0.209", 5.30mm Width)
• Mounting Type: Surface Mount
• Supplier Device Package: 16-SO

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The CD4049UBNSR qualifies as a direct substitute based on matching all core functional parameters, identical physical packaging, and equivalent compliance certifications. Both parts share the same logic function, circuit count, supply voltage range, operating temperature range, and package footprint.

Parameter Comparison

Engineering Selection Recommendations

The CD4049UBNSR is a direct functional substitute for the CD4049UBNS. Both parts are manufactured by Texas Instruments and share identical logic function, circuit configuration, supply voltage range, operating temperature range, and physical package specifications.

The CD4049UBNSR offers the following advantages:

Availability: The CD4049UBNSR maintains active product status with 16,233 pieces in stock, compared to the discontinued CD4049UBNS with 874 pieces available.

Performance Characteristics: The CD4049UBNSR demonstrates improved electrical performance with reduced quiescent current (4 µA versus 20 µA), lower output current requirements (4.3mA/24mA versus 8mA/48mA), and faster propagation delay (50ns versus 90ns at 15V with 50pF load).

Compliance: Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring equivalent environmental and regulatory compatibility.

Packaging: The CD4049UBNSR is supplied in Tape & Reel (TR) packaging, which is standard for high-volume production environments and automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the CD4049UBNSR directly replace the CD4049UBNS in existing designs?

A: Yes. Both parts share identical logic function (6-channel inverter), supply voltage range (3V ~ 18V), operating temperature range (-55°C ~ 125°C), and physical package (16-SOIC). Pin-to-pin compatibility is maintained, allowing direct substitution without circuit modification.

Q: What are the key differences between these two parts?

A: The primary differences are product status and electrical performance. The CD4049UBNSR is active with improved quiescent current (4 µA versus 20 µA), lower output current (4.3mA/24mA versus 8mA/48mA), and faster propagation delay (50ns versus 90ns). The CD4049UBNSR is supplied in Tape & Reel packaging versus the CD4049UBNS standard packaging.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain ROHS3 compliance, identical moisture sensitivity levels (MSL 1 - Unlimited), and equivalent ECCN and HTSUS classifications.

Q: What packaging format is the CD4049UBNSR supplied in?

A: The CD4049UBNSR is supplied in Tape & Reel (TR) format, which is standard for automated surface mount assembly and high-volume production. The CD4049UBNS is supplied in standard packaging.

Q: Does the improved performance of the CD4049UBNSR affect circuit design?

A: The lower quiescent current and faster propagation delay of the CD4049UBNSR represent performance improvements that do not negatively impact existing circuit designs. These characteristics make the CD4049UBNSR suitable for applications with stricter power consumption or timing requirements.

Q: Are both parts suitable for the same temperature range applications?

A: Yes. Both parts operate across the identical temperature range of -55°C to 125°C, ensuring equivalent thermal performance in all operating environments.