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The SN74LVC1G66DCKRE4 is a single-channel, single-pole single-throw (SPST) analog switch manufactured by Texas Instruments. It operates within a supply voltage range of 1.65 V to 5.5 V and supports an operating temperature range from -40 °C to +85 °C. The device features a maximum on-resistance (Ron) of 20 Ω and provides a nominal off-isolation of 42 dB. Packaged in a 5-pin SC-70 format with dimensions of 2 mm length, it is RoHS compliant and lead-free.
Verify the complete part number including the TE4 suffix to ensure compliance with specific environmental and manufacturing standards. Confirm the SC-70 package type matches the target PCB footprint. Check datasheet revisions for any updates regarding thermal or electrical characteristics before finalizing procurement specifications.
Select this component when a compact, low-voltage analog switch is required for single-signal path applications. Ensure the design accommodates the specified 20 Ω on-resistance and 42 dB isolation limits. Verify that the operating environment remains within the -40 °C to +85 °C temperature range for reliable performance.
This part belongs to the SN74LVC1G66 family of single analog switches. It shares the SC-70-5 package form factor with other LVC series logic components but functions specifically as a bilateral switch rather than a logic gate or buffer. The TE4 suffix indicates specific tape-and-reel packaging and material compliance.
SN74LVC1G66DCKR is a direct functional equivalent within the same product line.