CD4048BNSR Equivalent & Substitute Parts

Part Overview

The CD4048BNSR is a multifunction expandable configurable logic IC featuring 8 inputs in a 16-SO surface mount package, manufactured by Texas Instruments as part of the 4000B series. This device is classified as obsolete, making substitute parts necessary for ongoing production and maintenance applications. The CD4048BNSR provides single-ended output with symmetric current drive capabilities across supply voltages ranging from 3V to 18V.

Substiute Parts

CD4048BNSR

Texas InstrumentsIn Stock: 868CD4048BNSR Datasheet

Current PartRFQ

CD4048BM

Texas InstrumentsIn Stock: 2180CD4048BM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CD4048BNSR is determined by the following critical parameters that must remain constant:

• Logic Type: Multifunction Expandable
• Number of Circuits: 1
• Number of Inputs: 8
• Output Type: Single-Ended
• Current - Output High, Low: 6.8mA, 6.8mA
• Voltage - Supply: 3V ~ 18V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Base Product Number: CD4048

The CD4048BM qualifies as a direct substitute based on identical electrical specifications and functional characteristics. Both parts share the same base product number, logic configuration, and performance parameters. The primary difference lies in packaging format and product status, with the CD4048BM available in Tube packaging and classified as Last Time Buy status, providing greater inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The CD4048BM is the qualified substitute for the obsolete CD4048BNSR. Both parts maintain identical electrical performance, functional configuration, and compliance certifications. The CD4048BM carries Last Time Buy status, indicating limited future availability, making it suitable for immediate procurement to support ongoing applications.

Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The MSL rating of 1 (Unlimited) for both parts indicates no moisture sensitivity constraints during storage and handling.

The package width difference (5.30mm versus 3.90mm) reflects standard manufacturing variations within the 16-SOIC form factor and does not affect electrical compatibility or PCB layout considerations for standard surface mount applications.

Frequently Asked Questions (FAQ)

Q: Can CD4048BM directly replace CD4048BNSR in existing designs?

A: Yes. The CD4048BM provides identical electrical specifications, functional configuration, and performance characteristics. Both parts are pin-compatible 16-SOIC surface mount devices with the same logic type, input count, output drive capability, and supply voltage range.

Q: What is the significance of the product status difference?

A: CD4048BNSR is classified as Obsolete, indicating it is no longer manufactured. CD4048BM is Last Time Buy status, meaning production will cease but inventory remains available for a limited period. For new designs or ongoing production, CD4048BM should be selected.

Q: Are there compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings. They meet the same environmental and regulatory standards.

Q: Does the package width difference affect PCB design?

A: The 16-SOIC package width variation (5.30mm versus 3.90mm) represents standard manufacturing tolerances within the SOIC form factor. Both parts use identical pin spacing and are compatible with standard 16-SOIC PCB footprints.

Q: What inventory considerations apply to these parts?

A: CD4048BNSR has 796 pieces in stock as new original inventory. CD4048BM has 2133 pieces available in Tube packaging. For production planning, CD4048BM offers greater availability.