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I-CORE · analog switches and multiplexers

CD4066

CD4066 is the I-CORE functional equivalent of CD4066B / HEF4066B: quad bilateral switches, SOP-14 / DIP-14 / TSSOP-14, 3–9 V, −40 to 125 °C. Factory-original stock in Shenzhen; free samples with shipping paid.

In stock · ShenzhenFree samples · shipping paidEnglish datasheetREACHRoHS
Get a USD quoteDatasheet PDF (English)Free sample
You useCD4066B I-CORE equivalentCD4066 SOP-14 / DIP-14 / TSSOP-14 · 3–9 V

Key specifications

ManufacturerI-CORE (Wuxi I-CORE Electronics Co., Ltd.)
Part numberCD4066
FunctionQuad Bilateral Switches
PackageSOP-14 / DIP-14 / TSSOP-14
Order codes in stockCD4066, CD4066DA14.TB, CD4066SA14.TR, CD4066TA
Supply voltage3–9 V
Operating temperature−40 to 125 °C
ReplacesCD4066B
HEF4066B
ComplianceRoHS (EU 2011/65/EU + 2015/863) and REACH SVHC — third-party lab tested; reports on request
DatasheetPDF, English

Questions buyers ask

Can CD4066 replace CD4066B?
CD4066 is I-CORE's functional equivalent of CD4066B, HEF4066B in the same SOP-14 / DIP-14 / TSSOP-14 package. Standard parts in this family share the industry pinout, but please compare both datasheets — supply range, timing and absolute maximum ratings — before design-in.
What is the supply voltage and temperature range of CD4066?
Supply: 3–9 V. Operating temperature: −40 to 125 °C. See the datasheet for full electrical characteristics.
Is CD4066 in stock, and can I get a free sample?
Yes, it is held in stock in Shenzhen. Free samples are available for evaluation, with shipping paid by us. For production orders, SMD parts can be ordered from 1 pc and DIP parts ship in full tubes; orders ship within 2–3 business days after payment.
Is it original I-CORE product?
Yes. We supply factory-original I-CORE (Wuxi I-CORE Electronics) parts in sealed reels and tubes. Our ISO 9001, ISO 14001 and ISO 45001 certificates are shown on the home page; RoHS and REACH test reports are available on request.

Datasheet highlights

From the I-CORE English datasheet CD4066-AX-LJ-D012EN (revision 2023-04-B1). The full datasheet PDF is linked above.

General description

Ordering Information: Tube packing specifications: The CD4066 provides four single-pole, single-throw analog switch functions. Each switch has two input/output terminals (nY and nZ) and an active HIGH enable input (nE). When nE is LOW, the analog switch is turned off. The CD4066 is pin compatible with the CD4016 but exhibits a much lower ON resistance. In addition the ON resistance is relatively constant over the full input signal range.

Key features

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