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Product Detailed Parameters
- Description：IC SWITCH SPST-NOX1 40OHM SC88A
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：40Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：2V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：-
- -3db Bandwidth：180MHz
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：10pF
- Current - Leakage (IS(off)) (Max)：100nA
- Crosstalk：-
- Operating Temperature：-55°C ~ 125°C (TA)
- 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：1
- Grade：-
- Qualification：-
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Overview
The MC74VHC1G66DFT2G is a single-channel analog switch IC from onsemi, housed in a SOT-353-5 surface-mount package. It operates within a supply voltage range of 2 V to 5.5 V and supports an extended temperature range from -55°C to +125°C. Key electrical parameters include a maximum on-resistance of 40 Ohms, a maximum propagation delay of 25 ns, and a maximum power dissipation of 150 mW. The device draws a maximum supply current of 100 nA and is configured as a 1 x SPST switch.
Feature Summary
- High-speed signal switching capability with low propagation delay for efficient data transmission.
- Wide operating voltage range supporting both 3.3 V and 5 V logic systems.
- Low static power consumption suitable for battery-operated applications.
- Extended industrial temperature rating for reliable operation in harsh environments.
Applications
- Portable consumer electronics requiring compact signal routing
- Battery-powered devices needing low quiescent current
- Industrial control systems operating in extreme temperatures
Procurement Notes
This component has reached End-of-Life status, with a Product Change Notification indicating obsolescence effective August 20, 2026. Manufacturers will discontinue production, necessitating immediate verification of remaining stock availability and transition planning for alternative sources or compatible replacement parts before the specified cutoff date.
Selection Notes
Designers should evaluate the 40 Ohm on-resistance limit against signal integrity requirements for high-frequency applications. Verify that the 150 mW power dissipation rating accommodates thermal constraints within the SOT-353-5 package. Ensure input voltage levels remain within the specified logic thresholds to prevent latch-up or excessive leakage during operation.
Part Context
This part belongs to the MC74VHC1G series of single-gate CMOS logic devices. It shares the SC-88A (SOT-353) footprint common to onsemi's miniaturized logic family. The DFT2G suffix denotes the specific tape-and-reel packaging configuration and RoHS compliance status defined by the manufacturer.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Users must consult official manufacturer channels for qualified alternatives due to the End-of-Life status.
