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Product Detailed Parameters
- Description：IC SWITCH SPST-NOX1 10OHM SOT23
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Switch Circuit：SPST - NO
- 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：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The PI5A121TEX is a single-pole throw (SPST) normally open analog switch manufactured by Diodes Incorporated. It operates on a single supply voltage ranging from 2V to 6V, with typical specifications provided for +5V and +3.3V rails. The device features an on-resistance of 7.2Ω at 25°C under +5V conditions and 12Ω under +3.3V conditions. It supports a continuous current of ±25mA and offers a -3dB bandwidth of 326MHz. Key electrical parameters include a turn-on time of 7ns and charge injection of 1.6pC at +5V. The component is housed in a 5-pin SOT-23 package.
Feature Summary
- Single-supply operation compatible with TTL/CMOS logic levels
- Low power consumption suitable for battery-powered systems
- High-speed switching with wide bandwidth for signal routing
- Rail-to-rail analog signal dynamic range
Applications
- Audio and video signal switching and routing
- Battery-powered communication systems
- Computer peripherals
- Telecommunications equipment
- Portable instrumentation and mechanical relay replacement
Procurement Notes
Verify the ordering suffix 'TEX' corresponds to the Pb-free and Green compliant version packaged in Tape and Reel format within the 5-pin SOT-23 housing. Confirm that the specific revision of the datasheet matches the production lot requirements. Ensure compatibility with standard surface mount assembly processes for the specified package dimensions.
Selection Notes
Select this component when a normally open SPST configuration is required for low-distortion analog signal paths. The device is appropriate for applications demanding high bandwidth and low charge injection. Consider the on-resistance variation across temperature ranges and supply voltages when designing precision signal conditioning circuits or multiplexing arrays.
Part Context
This part belongs to the PI5A121/PI5A122/PI5A124 family of wide bandwidth analog switches. While the PI5A121 is normally open, the family includes normally closed variants and dual-channel options. These devices are designed to replace mechanical relays in compact designs, offering faster switching speeds and smaller board area utilization compared to electromechanical alternatives.
Replacement Considerations
Direct functional substitutes within the same family include the PI5A122TEX (Normally Closed) and PI5A124TEX (Dual Channel). Verify pinout compatibility if substituting between different channel counts or logic states. Cross-reference absolute maximum ratings and thermal dissipation characteristics to ensure safe operation in the target circuit environment.
