Analogue Sw, Quad, Spst, Dip-14; Ic Function:Bilateral Switch; Power Supply Type:Single Supply; Supply Voltage Range:3V To 15V; Ic Case/Package:Dip; No. Of Pins:14Pins; No. Of Channels:4Channels; On Resistance Typ:80Ohm; Msl:- Rohs Compliant: Yes |Onsemi CD4066BCN

CD4066BCN – Quad SPST Analog Switch IC – onsemi

The CD4066BCN from onsemi is a high-reliability quad single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in legacy and industrial systems. This through-hole component delivers low on-resistance and wide voltage operation, making it ideal for maintaining or repairing critical analog circuits. PCX ensures genuine obsolete components with rigorous quality checks and expedited shipping options.

Key Features

• Configuration: 4 independent SPST switches
• On-State Resistance: 240Ω max (5Ω channel matching)
• Voltage Range: 3V to 18V single supply
• Bandwidth: 40MHz (-3dB)
• Low Leakage: 8pF channel capacitance
• Robust Operation: -55°C to +125°C temperature range
• Package: 14-pin DIP (through-hole)

Technical Details

Part of the 4000B series, this obsolete IC features a 1:1 multiplexer/demultiplexer architecture with low signal distortion. Its 14-DIP package (7.62mm width) ensures compatibility with legacy through-hole PCBs. The wide operating voltage supports mixed-voltage systems, while the military-grade temperature tolerance guarantees performance in harsh environments. Base part number CD4066 variants offer design flexibility.

Typical Applications

• Analog signal routing in industrial control systems
• Audio/Video signal switching in broadcast equipment
• Sensor interface modules for test & measurement
• Battery-powered instrumentation circuits
• Legacy communication system maintenance

About onsemi

onsemi (formerly Fairchild Semiconductor) is a global leader in power management and analog solutions with over 50 years of innovation. Their components are renowned for industrial-grade durability and consistent performance under extreme conditions.

The company’s heritage in analog ICs ensures rigorous manufacturing standards. onsemi parts undergo extensive reliability testing, making them preferred for critical applications in automotive, aerospace, and medical industries.

About Analog Switch ICs

Analog switches electronically control signal paths without mechanical components, enabling precise routing in circuits. They function as solid-state relays with minimal distortion, crucial for maintaining signal integrity in audio, data acquisition, and instrumentation.

SPST switches like the CD4066BCN isolate or connect signals with low resistance. Their simplicity makes them fundamental building blocks in multiplexing systems, particularly where low power consumption and high noise immunity are required.

Packaging

Available in protective tube packaging for safe handling and storage. Contact PCX for bulk or specialized packaging requests.

FAQs

Q: Is this part still in production?
A: This IC is marked obsolete by onsemi but remains available at PCX for legacy system support and repairs.

Q: What replaces the CD4066BCN?
A: onsemi recommends newer CMOS analog switches like the NLAS series. Contact PCX for cross-reference assistance.

Q: Can it handle 20V signals?
A: No. The absolute maximum supply voltage is 18V – exceeding this may cause permanent damage.

Q: Is it suitable for audio applications?
A: Yes. With 40MHz bandwidth and low distortion, it’s ideal for audio signal routing.

Q: Does PCX provide datasheets?
A: Yes. Download the full CD4066BCN datasheet from our product page.

Q: Can I use this in automotive environments?
A: While rated for -55°C to +125°C, verify against specific automotive standards as this isn’t an AEC-Q100 certified part.

Product images are representational. Refer to datasheets for exact specifications.

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