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Product Detailed Parameters
- Description：IC SWITCH SPST-NOX2 95OHM 8XSON
- Series：74HCT
- Mfr：Nexperia USA Inc.
- Package：Bulk
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：95Ohm
- Channel-to-Channel Matching (ΔRon)：5Ohm
- Voltage - Supply, Single (V+)：4.5V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：30ns, 44ns
- -3db Bandwidth：200MHz
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：3.5pF
- Current - Leakage (IS(off)) (Max)：1µA
- Crosstalk：-60dB @ 1MHz
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-XFDFN
- Supplier Device Package：8-XSON (2x3)
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The 74HCT2G66GD,125 is a dual single-pole single-throw (SPST) analog switch manufactured by Nexperia. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes HCT logic for TTL-compatible inputs. The device features a maximum on-resistance of 128 Ohms and supports a switching current of 20 mA. Propagation delay is limited to 36 ns with a maximum turn-off time of 53 ns. It functions reliably across an extended temperature range from -40°C to +125°C. The component is housed in a compact SOT353 package.
Feature Summary
- Dual SPST configuration for independent signal routing
- TTL-compatible input levels via HCT logic family
- Extended industrial operating temperature range
Applications
- Signal multiplexing in data acquisition systems
- Audio and video signal path switching
- Battery management system isolation
Procurement Notes
Verify the specific suffix GD against official Nexperia documentation to confirm the SOT353 package designation. Ensure the ordering part number matches the required tape-and-reel quantity specifications. Cross-reference the manufacturer's latest datasheet revision to confirm compliance with current environmental directives such as RoHS and REACH before finalizing procurement orders.
Selection Notes
Select this component when dual isolated analog paths are required within a minimal footprint. The HCT logic interface ensures compatibility with standard 5V digital control signals. Verify that the 128 Ohm on-resistance meets the application's signal integrity requirements and that the 5.5 V maximum supply voltage aligns with the system power rails.
Part Context
This part belongs to the Nexperia 74HCT2G series of small-signal analog switches. It provides a compact solution for managing multiple analog signals using standard digital logic controls. The series is designed for applications requiring low power consumption and high reliability in space-constrained electronic designs.
Replacement Considerations
Direct substitutes include the 74HC2G66DC,125 for HC logic variants or the 74HCT2G66DP,125 for alternative TSSOP8 packaging. Verify pinout compatibility and electrical parameter tolerances before substituting.
