Orderable parts
| Type number | Orderable part number | Ordering code (12NC) | Package | Buy from distributors |
|---|---|---|---|---|
| 74HCT1G66GW | 74HCT1G66GW,125 | 935245760125 | SOT353-1 | Order product |
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Click here for more information74HCT1G66GW
Single-pole single-throw analog switch
The 74HC1G66; 74HCT1G66 is a single-pole, single-throw analog switch with two input/output terminals (nY and nZ) and a digital enable input (nE). When nE is LOW, the analog switch is turned off. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
The HCT device features control inputs with reduced input threshold levels to allow interfacing to TTL logic levels.
Alternatives
Features and benefits
Wide supply voltage range from 2.0 V to 10.0 V
Very low ON resistance:
45 Ω (typ.) at VCC = 4.5 V
30 Ω (typ.) at VCC = 6.0 V
25 Ω (typ.) at VCC = 9.0 V
High noise immunity
CMOS low power dissipation
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
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Complies with JEDEC standards:
JESD8C (2.7 V to 3.6 V)
JESD7A (2.0 V to 6.0)
ESD protection:
HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Specified from -40 °C to +85 °C and -40 °C to +125 °C
Parametrics
| Type number | Configuration | VCC (V) | Logic switching levels | RON (Ω) | RON(FLAT) (Ω) | f(-3dB) (MHz) | THD (%) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HCT1G66GW | SPST-NO | 4.5 - 5.5 | TTL | 118 | 23 | 180 | 0.04 | very low | -40~125 | 257 | 35.8 | 134 | TSSOP5 |
PCB Symbol, Footprint and 3D Model
| Model Name | Description |
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Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74HCT1G66GW | 74HCT1G66GW,125 (935245760125) |
Active | TL |
TSSOP5 (SOT353-1) |
SOT353-1 |
WAVE_BG-BD-1
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SOT353-1_125 |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HCT1G66GW | 74HCT1G66GW,125 | 74HCT1G66GW |
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Series
Documentation (12)
| File name | Title | Type | Date |
|---|---|---|---|
| 74HC_HCT1G66 | Single-pole single-throw analog switch | Data sheet | 2024-07-09 |
| AN10161 | PicoGate Logic footprints | Application note | 2002-10-29 |
| AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
| AN90063 | Questions about package outline drawings | Application note | 2025-06-13 |
| Nexperia_document_guide_MiniLogic_PicoGate_201901 | PicoGate leaded logic portfolio guide | Brochure | 2019-01-07 |
| SOT353-1 | 3D model for products with SOT353-1 package | Design support | 2019-09-23 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| TSSOP5_SOT353-1_mk | plastic, thin shrink small outline package; 5 leads; 0.65 mm pitch; 2 mm x 1.25 mm x 0.95 mm body | Marcom graphics | 2018-07-25 |
| SOT353-1 | plastic thin shrink small outline package; 5 leads; body width 1.25 mm | Package information | 2022-11-15 |
| SOT353-1_125 | TSSOP5; Reel pack for SMD, 7"; Q3/T4 product orientation | Packing information | 2023-02-21 |
| 74HCT1G66GW_Nexperia_Product_Reliability | 74HCT1G66GW Nexperia Product Reliability | Quality document | 2025-03-20 |
| WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |
Support
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Longevity
The Nexperia Longevity Program is aimed to provide our customers information from time to time about the expected time that our products can be ordered. The NLP is reviewed and updated regularly by our Executive Management Team. View our longevity program here.
Models
| File name | Title | Type | Date |
|---|---|---|---|
| SOT353-1 | 3D model for products with SOT353-1 package | Design support | 2019-09-23 |
PCB Symbol, Footprint and 3D Model
| Model Name | Description |
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Ordering, pricing & availability
| Type number | Orderable part number | Ordering code (12NC) | Status | Packing | Packing Quantity | Buy online |
|---|---|---|---|---|---|---|
| 74HCT1G66GW | 74HCT1G66GW,125 | 935245760125 | Active | SOT353-1_125 | 3,000 |
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Sample
As a Nexperia customer you can order samples via our sales organization.
If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.
How does it work?
The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.