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Product Detailed Parameters
- Description：IC SWITCH SPST SC88A
- Series：74VHC
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Switch Circuit：-
- Multiplexer/Demultiplexer Circuit：-
- On-State Resistance (Max)：-
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：-
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：-
- -3db Bandwidth：-
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：-
- Current - Leakage (IS(off)) (Max)：-
- Crosstalk：-
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Supplier Device Package：SC-88A (SC-70-5/SOT-353)
- Number of Circuits：-
- Grade：-
- Qualification：-
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Overview
The MC74VHC1GT66DFT2 is a single-channel analog switch from onsemi's 74VHC series, housed in a SOT-353-5 package. It operates on a single supply voltage ranging from 2 V to 5.5 V. The device features a maximum on-resistance of 40 Ohms and supports high-speed signal routing with typical propagation delays of 25 ns for both turn-on and turn-off times. It functions as an SPST normally open switch with low power consumption, characterized by a maximum supply current of 100 nA. The component is rated for operation across an extended temperature range from -55°C to +125°C.
Feature Summary
- High-speed signal switching capability suitable for data transmission applications
- Low power dissipation design with minimal standby current consumption
- Wide operating voltage range compatible with various digital logic families
Applications
- Portable equipment requiring battery-powered signal routing
- Communication systems utilizing high-speed data lines
- Industrial control systems operating in extreme temperatures
Procurement Notes
Verify the specific suffix DFT2 against official datasheets to confirm the SOT-353-5 packaging and tape-and-reel configuration. Confirm RoHS compliance status through manufacturer documentation prior to integration. Check for end-of-life notices or production change notifications that may affect long-term availability and sourcing strategies for this component.
Selection Notes
Select this component when a single-pole single-throw analog switch is required within a compact surface-mount footprint. Ensure the application voltage remains within the 2 V to 5.5 V range to maintain specified electrical performance. Consider the 40 Ohm on-resistance limit for signal integrity requirements in the target circuit design.
Part Context
This part belongs to the MC74VHC1G family of advanced high-speed CMOS devices. It shares functional compatibility with standard logic families while offering improved speed and lower power consumption compared to older technologies. The device is designed for use in portable and space-constrained electronic applications requiring efficient signal management.
Replacement Considerations
Check for direct pin-compatible alternatives within the same 74VHC series. Verify if other manufacturers offer equivalent SPST switches with similar voltage ranges and package dimensions. Ensure any substitute maintains the required 25 ns propagation delay and 40 Ohm on-resistance specifications.
