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Product Detailed Parameters
- Description：IC SWITCH SPDTX1 4.5OHM SOT363-6
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：4.5Ohm
- Channel-to-Channel Matching (ΔRon)：200mOhm
- Voltage - Supply, Single (V+)：4V ~ 12V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：220ns, 225ns
- -3db Bandwidth：200MHz
- Charge Injection：170pC
- Channel Capacitance (CS(off), CD(off))：6pF
- Current - Leakage (IS(off)) (Max)：20µA
- Crosstalk：-42dB @ 10MHz
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：6-TSSOP, SC-88, SOT-363
- Supplier Device Package：SOT-363-6 (SC-70)
- Number of Circuits：1
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The PS4157NCEX is a negative voltage SPDT analog switch manufactured by Diodes Incorporated. It operates with a VEE supply range of -12 V to -4 V and supports switch signal voltages from VEE to GND. The device features a low ON resistance (RON) of ≤ 5 Ω at VEE = -10 V, with a maximum RON of 4.5 Ω at -12 V and 15 Ω at -4 V. Propagation delay is typically 2 ns, while turn-on time ranges from 150 ns to 220 ns depending on the supply voltage. The component functions within an extended industrial temperature range of -55°C to +125°C and utilizes a 6-pin SC-70 package.
Feature Summary
- Supports bidirectional switching of analog and digital signals across the full negative power-supply range.
- Operates with positive control logic levels up to 3.3 V for simplified interface integration.
- Designed for high reliability in harsh environments with an extended industrial temperature rating.
Applications
- 5G NR Active Antenna Units (AAU)
- Negative voltage signal routing
- Telecommunications infrastructure
Procurement Notes
Verify the specific ordering suffix 'CEX' corresponds to the required tape and reel packaging format. Confirm that the selected component meets all applicable RoHS and halogen-free compliance requirements for your manufacturing process. Ensure that the design accounts for the specified thermal resistance and power dissipation limits during operation.
Selection Notes
Select this component when negative voltage signal switching is required with a single-channel SPDT configuration. Verify that the system's control logic aligns with the specified input voltage thresholds for the select pin. Consider the maximum ON resistance specifications at the lowest expected operating voltage to ensure signal integrity is maintained throughout the operational range.
Part Context
This part belongs to the PS4157N family of negative voltage analog switches produced by Diodes Incorporated. The CEX suffix indicates the specific surface-mount packaging variant available in the SC-70 footprint. This series is engineered specifically for applications requiring robust performance under negative supply conditions.
Replacement Considerations
Consult official manufacturer documentation for confirmed substitute part numbers. Do not assume functional equivalence based solely on package compatibility or general category classification.
FAQ
What is the maximum ON resistance specification?
The maximum ON resistance is 4.5 Ω at VEE = -12 V and increases to 15 Ω at VEE = -4 V.
Does the device support positive control signals?
Yes, the select input voltage range is 0 V to 3.3 V, allowing compatibility with standard positive logic levels.
What is the typical propagation delay?
The typical propagation delay from bus to bus is 2 ns.
