Description:

Lot of 17 genuine Philips **HEF4053BP** (marks like 729850T / Hnn9122P3). The 4053B is a **triple 2-channel analog switch** (3× SPDT mux/demux). CMOS 4000B family; works from a single supply and routes analog or digital signals. Plastic **DIP-16** through-hole. Clean New-Old-Stock; untested.

Highlights:

• Function: 3 independent SPDT analog switches (triple 2:1 mux/demux)  

• Supply: **3…15 V** single-supply CMOS  

• Controls: A/B/C select + inhibit (digital **CMOS-level** inputs)  

• Bidirectional signal paths; low leakage; wide analog range (rail-to-rail with supply)

Operating temperature: **−40…+85 °C** (HEF series, industrial)  

Storage temperature: **−65…+150 °C**

Compatibility note:

Drop-in for **4053B / CD4053B / HEF4053B** in **DIP-16**. Control inputs are **CMOS-level** with thresholds ~½ VDD (not TTL-threshold by default); if driving from TTL at 5 V, ensure VIH/VIL meet the datasheet or use a level shifter. Observe pin-1 notch and board footprint.