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Product Detailed Parameters
- Description：JFET 2N-CH 25V 8SOIC
- Series：SST441
- Mfr：Linear Integrated Systems, Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- FET Type：2 N-Channel (Dual)
- Voltage - Breakdown (V(BR)GSS)：25 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：3pF @ 10V
- Resistance - RDS(On)：-
- Power - Max：500 mW
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The SST441 is a wideband high-gain monolithic dual N-channel JFET amplifier housed in an SOIC-8 package. It serves as a direct replacement for the SILICONIX U/SST440 and U/SST441 devices. The component features a common mode rejection ratio of at least 85 dB, low gate leakage current of 1 pA maximum, and forward transconductance ranging from 4.5 to 9 mS. Operating junction temperatures span from -55°C to +150°C with a continuous power dissipation of 500mW.
Feature Summary
- Direct pin-compatible replacement for legacy SILICONIX U/SST440 and U/SST441 amplifiers
- High common mode rejection ratio exceeding 85 dB for precise signal processing
- Ultra-low gate leakage current ensuring minimal input bias errors
- Monolithic dual N-channel JFET architecture providing wideband performance
Applications
- Precision instrumentation circuits requiring high CMRR
- Low-noise analog signal amplification
- Industrial control systems utilizing legacy siliconix components
- Medical equipment signal conditioning
Procurement Notes
Verify the specific ordering suffix matches the required package type and temperature grade. Confirm that the manufacturer designation aligns with Linear Integrated Systems documentation rather than generic equivalents. Ensure the procurement channel provides traceable datasheets matching Doc 201125 Rev A4. Cross-reference part numbers against the official replacement list for SILICONIX devices to guarantee functional compatibility before finalizing orders.
Selection Notes
Select this component when upgrading or maintaining designs originally based on SILICONIX U-series JFET amplifiers. The SOIC-8 package facilitates surface-mount assembly compared to older TO-71 alternatives. Evaluate the 85 dB CMRR requirement against application noise floors. Consider the 4.5 to 9 mS transconductance range for gain stability needs. Verify thermal management capabilities within the specified -55°C to +150°C operating range.
Part Context
Linear Integrated Systems manufactures the SST441 using proprietary processes derived from expertise at Amelco, Union Carbide, Intersil, and Micro Power Systems. Founded in 1987, the company focuses on high-performance discrete semiconductors. This device belongs to the U Series family, bridging legacy through-hole specifications with modern surface-mount packaging requirements.
Replacement Considerations
This component is explicitly documented as a direct replacement for SILICONIX U/SST440 and U/SST441 devices. No other substitute part numbers are listed in the provided documentation.
