SN74AUC1G66DBVRG4 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments SN74AUC1G66DBVRG4 is a single-channel SPST analog switch in a 5-pin SOT-23 package, featuring ultra-low on-state resistance up to 20 Ω and 55 dB off-state isolation. It operates in low-voltage systems for signal routing in portable, wearable, and battery-powered applications.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- SN74AUC1G66DBVRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74AUC1G66DBVRG4?
- Single SPST channel with maximum 20 Ω on-state resistance
- 55 dB off-state isolation for clean signal switching
- Ultra-low voltage AUC-family operation down to 0.8 V
- 5-pin SOT-23 package for space-constrained PCB layouts
- RoHS-compliant lead-free construction (JESD-609 e4)
What is SN74AUC1G66DBVRG4 used for?
The SN74AUC1G66DBVRG4 is used in battery-powered portable devices, wearables, and mobile handsets where low-voltage analog signal routing is required with minimal power consumption. Its compact SOT-23 package and low on-resistance make it well-suited for audio signal switching, sensor multiplexing, and GPIO-controlled bus sharing in IoT products.
What are the specifications of SN74AUC1G66DBVRG4?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SPST |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Normal Position | NO |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Off-state Isolation-Nom | 55dB |
| On-state Resistance-Max (Ron) | 20Ω |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.01mA |
| Supply Voltage-Max (Vsup) | 2.7V |
| Supply Voltage-Min (Vsup) | 0.8V |
| Supply Voltage-Nom (Vsup) | 1.65V |
| Surface Mount | YES |
| Switch-off Time-Max | 2.9ns |
| Switch-on Time-Max | 1.1ns |
| Switching | MAKE-BEFORE-BREAK |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the SN74AUC1G66DBVRG4 datasheet?
SN74AUC1G66DBVRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74AUC1G66DBVRG4?
Compatible alternatives and drop-in replacements for SN74AUC1G66DBVRG4:
Frequently Asked Questions
What is the maximum on-state resistance of the SN74AUC1G66DBVRG4, and how does it affect signal integrity?
The SN74AUC1G66DBVRG4 has a maximum on-state resistance of 20 Ω, which introduces minimal signal attenuation in most low-frequency analog and digital switching applications. For high-impedance loads, this resistance is negligible, preserving signal fidelity across the switch path.
How low can the SN74AUC1G66DBVRG4 supply voltage go, making it suitable for sub-1 V system designs?
The AUC logic family supports supply voltages as low as 0.8 V, enabling the SN74AUC1G66DBVRG4 to operate in next-generation low-voltage SoC platforms and coin-cell battery applications. This sub-1 V capability reduces system power consumption compared to older LVC or AHC switch families.
When would an engineer choose the SN74AUC1G66DBVRG4 over a larger analog switch IC with multiple channels?
Designers choose the SN74AUC1G66DBVRG4 when only a single SPST switching path is needed and board space is critical; the 5-pin SOT-23 package occupies less than 3 mm² of PCB area. Using a single-gate device also avoids powering unused channels, reducing quiescent current in always-on IoT nodes.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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