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Product Detailed Parameters
- Description：IC SWITCH SPST-NCX1 11OHM SC70-5
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：11Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：1.65V ~ 6V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：5ns, 4ns
- -3db Bandwidth：500MHz
- Charge Injection：5pC
- Channel Capacitance (CS(off), CD(off))：2.5pF
- Current - Leakage (IS(off)) (Max)：-
- Crosstalk：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Supplier Device Package：SC-70-5
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The PI3A125BCEX is a single-pole single-throw (SPST) normally closed CMOS analog switch manufactured by Diodes Incorporated. It operates within a wide supply voltage range of 1.65V to 6.0V and supports rail-to-rail signal ranges. The device features an on-resistance of 8Ω at 3.0V, with a maximum transition speed of 2ns at 5.0V. It provides high off-isolation of -63dB at 10MHz and includes power-off protection on I/O pins. The component is housed in a 5-pin SC70 package and functions over an extended industrial temperature range from -40°C to +85°C.
Feature Summary
- CMOS technology designed for bus and analog applications
- Break-before-make switching mechanism
- Control input tolerant up to 6.0V independent of supply voltage
Applications
- Audio and video signal switching and routing
- Cell phones and PDAs
- Portable instrumentation
- Battery-powered communication systems
- Mechanical relay replacement
Procurement Notes
Verify the specific ordering suffix 'E' confirms lead-free and green material compliance as documented in the datasheet. Confirm that the 'X' suffix indicates tape and reel packaging rather than tube or cut tape formats. Ensure the base part number matches the SPST NC specification. Cross-reference the manufacturer's current status to confirm availability and active production status.
Selection Notes
Select this component when a normally closed SPST configuration is required for low-distortion signal routing. Verify that the operating voltage falls between 1.65V and 6.0V. Check that the required on-resistance meets the system impedance needs across the specified temperature range. Ensure the control logic levels are compatible with the defined VIH and VIL thresholds for the chosen supply voltage.
Part Context
This component belongs to the PI3A125 family of wide bandwidth analog switches produced by Diodes Incorporated, formerly Pericom Semiconductor. The PI3A125B variant specifically denotes the SPST normally closed architecture. The CEX suffix identifies the specific SC70-5 package with tape and reel packaging and lead-free composition.
Replacement Considerations
PI3A125BCE
FAQ
What is the default state of the PI3A125B switch?
The PI3A125B is a normally closed (NC) switch, meaning it is ON when the IN pin is LOW and OFF when the IN pin is HIGH.
Does the PI3A125B support hot swapping?
Yes, the I/O pins feature power-off protection functions, allowing the device to handle signals even when the supply voltage is removed.
What is the maximum off-isolation performance?
The device achieves a high off-isolation of -63dB at a frequency of 10MHz.
