: Manufactured by NXP, this is a direct equivalent. You may find models under this prefix on NXP's support pages . Where to Buy Hardware
Finding a reliable can be challenging because many major manufacturers like Texas Instruments do not provide official simulation models for this legacy 4000-series part. However, community-driven subcircuits and third-party libraries offer robust alternatives for LTspice, PSpice, and KiCad users. Top CD4051 SPICE Model Resources
can be challenging because major manufacturers like do not provide official SPICE models for this legacy part. However, you can find working models through community libraries or use newer alternatives with compatible footprints. SPICE Model Resources