CD4066BNS Equivalent & Substitute Parts

Part Overview

The CD4066BNS is a quad bilateral switch IC manufactured by Texas Instruments, designed for analog signal switching and multiplexing applications. This 14-pin surface mount device operates across a wide supply voltage range of 3V to 18V and provides four independent SPST switch circuits with 240Ohm maximum on-state resistance. The CD4066BNS is classified as Last Time Buy, indicating discontinued production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for ongoing production and maintenance applications.

Substiute Parts

CD4066BNS

Texas InstrumentsIn Stock: 2296CD4066BNS Datasheet

Current PartRFQ

CD4066BNSR

Texas InstrumentsIn Stock: 5135CD4066BNSR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4066BNS is determined by strict equivalence across the following critical parameters:

• Switch Configuration: SPST topology with 4 independent circuits
• On-State Resistance: Maximum 240Ohm with channel-to-channel matching of 5Ohm
• Supply Voltage Range: 3V to 18V single supply operation
• Bandwidth Performance: -3dB bandwidth of 40MHz
• Channel Capacitance: 8pF off-state capacitance specification
• Operating Temperature Range: -55°C to 125°C
• Package Compatibility: 14-SOIC surface mount package with 5.30mm width
• Compliance Standards: ROHS3 compliance and MSL Level 1 rating

The CD4066BNSR qualifies as a direct substitute based on identical electrical specifications and package geometry. The primary distinction is packaging format: CD4066BNS is supplied in Tube packaging, while CD4066BNSR is supplied in Tape & Reel format. Both devices share the same base product number (CD4066) and maintain full parameter equivalence.

Parameter Comparison

Engineering Selection Recommendations

The CD4066BNSR is the primary substitute for the CD4066BNS. Both parts maintain identical electrical and mechanical specifications, ensuring direct functional compatibility in circuit applications. The CD4066BNSR carries Active product status, providing ongoing availability and supply chain stability compared to the Last Time Buy status of the CD4066BNS.

Selection between these parts should be based on packaging requirements: Tube packaging (CD4066BNS) is suitable for lower-volume applications and manual assembly processes, while Tape & Reel packaging (CD4066BNSR) is optimized for automated pick-and-place assembly and higher-volume production environments.

Both parts maintain full ROHS3 compliance and MSL Level 1 rating, confirming suitability for standard manufacturing and storage conditions without moisture sensitivity constraints.

Frequently Asked Questions (FAQ)

Q: Can CD4066BNSR be used as a direct replacement for CD4066BNS?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format: CD4066BNS uses Tube packaging while CD4066BNSR uses Tape & Reel packaging. Circuit performance and pin configuration are identical.

Q: What is the significance of the Last Time Buy status on CD4066BNS?

A: Last Time Buy indicates that Texas Instruments has discontinued production of this part number. CD4066BNSR, which carries Active status, is the recommended alternative for new designs and ongoing production requirements.

Q: Are there any thermal or environmental differences between these parts?

A: No. Both parts operate across the identical temperature range of -55°C to 125°C and maintain the same MSL Level 1 rating, indicating unlimited shelf life under standard storage conditions.

Q: What packaging considerations apply when switching from CD4066BNS to CD4066BNSR?

A: CD4066BNS in Tube packaging requires manual handling and is suitable for lower-volume assembly. CD4066BNSR in Tape & Reel format integrates with automated assembly equipment. Verify that your assembly process supports Tape & Reel format before transitioning.

Q: Do both parts meet the same compliance standards?

A: Yes. Both CD4066BNS and CD4066BNSR are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.