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Product Detailed Parameters
- Description：IC SWITCH SPST-NCX2 10OHM 8SOIC
- Series：-
- Mfr：Diodes Incorporated
- Package：Bag
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：10Ohm
- Channel-to-Channel Matching (ΔRon)：200mOhm
- Voltage - Supply, Single (V+)：2V ~ 6V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：15ns, 7ns
- -3db Bandwidth：326MHz
- Charge Injection：1.6pC
- Channel Capacitance (CS(off), CD(off))：5.5pF, 5.5pF
- Current - Leakage (IS(off)) (Max)：200pA (Typ)
- Crosstalk：-43dB @ 10MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The PI5A127W is a dual single-pole single-throw analog switch designed for single-supply operation. It functions as a normally closed switch, conducting current equally in either direction when active and blocking voltages up to V+ when off. The device supports +5V and +3.3V supplies with TTL/CMOS logic compatibility. Electrical specifications at +5V include an on-resistance of 70Ω typical, off-isolation of 60dB at 100MHz, and charge injection of 1nC. At +3.3V, the on-resistance is 18Ω typical with 42dB off-isolation. Power consumption is typically 5µW.
Feature Summary
- Dual SPST configuration with normally closed state
- Bidirectional signal conduction capability
- TTL and CMOS logic compatible control interface
- Low power consumption design
Applications
- Audio and video switching and routing
- Battery-powered communication systems
- Mechanical relay replacement
- Portable instrumentation
Procurement Notes
Verify the specific package suffix against the datasheet ordering information to ensure correct physical dimensions and pinout. Confirm supply voltage requirements match the application design before integration. Check for RoHS compliance status if environmental regulations apply to the final product assembly process.
Selection Notes
Select this component for applications requiring bidirectional analog signal routing with low distortion. The normally closed default state distinguishes it from the PI5A126 variant. Ensure the operating voltage aligns with the specified +5V or +3.3V ranges to maintain guaranteed electrical performance parameters.
Part Context
This part belongs to the PI5A126/PI5A127 series of wide bandwidth analog switches manufactured by Diodes Incorporated. The series provides high-precision switching solutions for signal routing. The PI5A127 specifically offers the normally closed functionality compared to the normally open PI5A126.
Replacement Considerations
The PI5A126 serves as a functional alternative within the same series but operates as a normally open switch rather than normally closed. Verify logic state requirements when substituting between these two variants.
