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Product Detailed Parameters
- Description：JFET P-CH 30V SOT23-3
- Series：SST174
- Mfr：Linear Integrated Systems, Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- FET Type：P-Channel
- Voltage - Breakdown (V(BR)GSS)：30 V
- Drain to Source Voltage (Vdss)：-
- Current - Drain (Idss) @ Vds (Vgs=0)：-
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：-
- Input Capacitance (Ciss) (Max) @ Vds：-
- Resistance - RDS(On)：85 Ohms
- Power - Max：350 mW
- Operating Temperature：-55°C ~ 135°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The Linear Integrated Systems SST174 is a single P-channel JFET switch housed in an SOT-23 three-terminal package. It serves as a direct replacement for the SILICONIX J/SST174 series, offering low on-resistance of 85 ohms maximum and low gate operating current with drain cutoff at 10pA. The device supports continuous power dissipation of 350mW and operates within a junction temperature range of -55°C to 135°C. Key electrical limits include a gate-to-source voltage of 30V and gate-to-drain voltage of 30V.
Feature Summary
- Direct functional replacement for the SILICONIX J/SST174 series components
- Provides low on-resistance characteristics suitable for signal switching applications
- Features extremely low gate operating current and minimal drain cutoff leakage
Applications
- Signal path switching in electronic circuits
- Low-power analog signal routing
- Replacement in legacy designs utilizing SILICONIX J-series JFETs
Procurement Notes
Verify that the specific ordering suffix corresponds to the SOT-23 3L package variant rather than the TO-92 configuration. Confirm RoHS compliance status matches project requirements. Ensure the manufacturer designation aligns with Linear Integrated Systems documentation. Cross-reference pinout assignments (Drain, Gate, Source) against the target schematic to prevent integration errors during assembly.
Selection Notes
Select this component when a P-channel JFET switch with low on-resistance and minimal control current is required. The SOT-23 package offers a compact footprint compared to through-hole alternatives. Consider the specific breakdown voltages and power dissipation limits relative to the circuit's operational conditions. This part is appropriate for replacing older SILICONIX equivalents in modern designs requiring smaller form factors.
Part Context
The SST174 belongs to the J/SST174 series of single P-channel JFET switches manufactured by Linear Integrated Systems. This series includes variants such as the J/SST175, J/SST176, and J/SST177, which differ primarily in gate cutoff voltage and saturation current specifications. The SST174 specifically targets applications needing lower on-resistance compared to other members of the family.
Replacement Considerations
This component is documented as a direct replacement for the SILICONIX J/SST174 series. Verify compatibility with existing circuit parameters before substitution.
