Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Device type | Single-pole single-throw bilateral analog switch |
| Configuration | SPST normally open |
| Supply range | 2.0 V to 10.0 V family operating range |
| Typical RON | 45 Ω at 4.5 V; 30 Ω at 6 V; 25 Ω at 9 V |
| Logic family | HC CMOS |
| Signal direction | Bidirectional |
| Package | TSSOP5 / SOT353-1 |
| Packing suffix | ,125 tape-and-reel ordering code |
Product Overview
74HC1G66GW,125 is a Nexperia single-channel bilateral analog switch in the five-lead SOT353/TSSOP5 package. The Y and Z terminals form a bidirectional signal path controlled by the enable input; when the enable input is LOW, the switch is open.
The HC implementation supports a wide supply range and is useful for compact analog gating, signal selection and small mixed-signal routing functions where a full multi-channel multiplexer would consume unnecessary board area.
Technical Specifications
| Parameter | Confirmed Information |
|---|---|
| Switches | 1 |
| Topology | SPST-NO bilateral analog switch |
| Supply voltage | 2.0 V to 10.0 V family range |
| RON typical at 4.5 V | 45 Ω |
| RON typical at 6.0 V | 30 Ω |
| RON typical at 9.0 V | 25 Ω |
| Input protection | Clamp diodes |
| Package | SOT353-1, 5 leads |
| Technology | CMOS logic/analog switch |
Signal-Routing Considerations
The signal path is bidirectional, but the analog voltage must remain within the permitted rails and input conditions. RON varies with supply voltage and signal level, so source impedance and load current should be included when estimating insertion error.
The ,125 suffix identifies the packing/orderable and should be retained when a BOM requires the exact reel configuration.
Manufacturer Resource
Nexperia 74HC1G66 / 74HCT1G66 series
Quality & Verification Support
Exact order code, SOT353 package, top marking, packing and lot/date information can be reviewed before shipment.
Request a Quote
Request 74HC1G66GW,125 exactly and include quantity, date-code and traceability requirements.
