CD4066BEE4 Equivalent & Substitute Parts

Part Overview

The CD4066BEE4 is a quad bilateral switch IC manufactured by Texas Instruments, part of the 4000B logic series. This device functions as a 4-circuit SPST (Single Pole Single Throw) switch with a 1:1 multiplexer/demultiplexer configuration, designed for analog signal switching applications. The CD4066BEE4 is discontinued at DiGi Electronics, making identification of compatible substitute parts essential for ongoing design support and procurement.

Substiute Parts

CD4066BEE4

Texas InstrumentsIn Stock: 817CD4066BEE4 Datasheet

Current PartRFQ

CD4016BE

Texas InstrumentsIn Stock: 10263CD4016BE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4066BEE4 is determined by the following critical parameters:

• Package Compatibility: 14-DIP (0.300", 7.62mm) through-hole mounting
• Circuit Configuration: 4 independent bilateral switch circuits with 1:1 multiplexer/demultiplexer topology
• Voltage Supply Range: 3V ~ 18V single supply operation
• On-State Resistance: Maximum 240Ohm with channel matching tolerance of 5Ohm
• Bandwidth Performance: -3dB bandwidth of 40MHz
• Operating Temperature Range: -55°C ~ 125°C
• Compliance Standards: ROHS3 Compliant, REACH Unaffected

The CD4016BE qualifies as a parametric equivalent based on matching all critical electrical and mechanical parameters within the allowed specifications for this product category.

Parameter Comparison

Engineering Selection Recommendations

The CD4016BE is a direct parametric equivalent to the CD4066BEE4 for applications requiring quad bilateral switch functionality in the 4000B logic series. Both devices share identical electrical specifications, package geometry, and compliance certifications. The primary distinction is product status: the CD4066BEE4 is discontinued at DiGi Electronics, while the CD4016BE maintains active production status with substantial inventory availability (10,163 pieces in stock).

Selection of the CD4016BE as a substitute is supported by:

• Identical 14-DIP through-hole package footprint for direct PCB compatibility
• Matching voltage supply range (3V ~ 18V) and operating temperature specifications (-55°C ~ 125°C)
• Equivalent circuit topology: 4 independent bilateral FET switches with 1:1 configuration
• Full compliance with ROHS3 and REACH standards
• Active product status ensuring long-term availability and supply chain continuity

Frequently Asked Questions (FAQ)

Q: Can the CD4016BE be used as a direct replacement for the CD4066BEE4 in existing designs?

A: Yes. Both devices are manufactured by Texas Instruments within the 4000B series and share identical electrical parameters, package dimensions, and pin configurations. Direct PCB substitution is supported without design modification.

Q: Are there differences in on-state resistance or channel matching between these parts?

A: The provided specifications confirm matching on-state resistance (240Ohm maximum) and channel-to-channel matching (5Ohm) for both devices. No performance degradation is expected in switching applications.

Q: What is the significance of the CD4066BEE4 being discontinued?

A: Discontinuation at DiGi Electronics indicates the part is no longer actively produced or stocked through this distribution channel. The CD4016BE, with active product status and high inventory levels, provides supply chain continuity for applications requiring quad bilateral switch functionality.

Q: Do both parts support the same voltage supply range?

A: Yes. Both the CD4066BEE4 and CD4016BE operate across the 3V ~ 18V supply range and maintain identical performance across the -55°C ~ 125°C operating temperature window.

Q: Are there packaging or mounting differences between these devices?

A: No. Both devices are supplied in 14-DIP (0.300", 7.62mm) through-hole packages with identical pin assignments and mechanical dimensions, ensuring compatibility with existing PCB layouts.