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Product Detailed Parameters
- Description：JFET 2N-CH 25V TO71
- Series：LS5912
- Mfr：Linear Integrated Systems, Inc.
- Package：Bulk
- FET Type：2 N-Channel (Dual)
- Voltage - Breakdown (V(BR)GSS)：25 V
- Drain to Source Voltage (Vdss)：-
- Current - Drain (Idss) @ Vds (Vgs=0)：7 mA @ 10 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：1 V @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：5pF @ 10V
- Resistance - RDS(On)：-
- Power - Max：500 mW
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-71-6 Metal Can
- Supplier Device Package：TO-71
- Grade：-
- Qualification：-
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Overview
The LS5912 is a monolithic dual N-channel JFET amplifier designed as an improved replacement for legacy discrete devices. It features low noise performance with an equivalent input noise voltage of approximately 4nV/√Hz at 10kHz and high transconductance exceeding 4000µS at 100MHz. The device operates within a junction temperature range of -55°C to +150°C, supporting continuous power dissipation up to 500mW. Key electrical characteristics include a gate-to-source breakdown voltage of -25V and a typical saturation drain current of 7mA.
Feature Summary
- Monolithic integration of dual N-channel JFETs for compact circuit design
- Low noise operation suitable for sensitive signal processing applications
- High transconductance providing robust amplification capabilities
- Wide operating temperature range for demanding environments
Applications
- Precision analog signal conditioning circuits
- Low-noise preamplifier stages in instrumentation
- High-frequency wideband amplifier designs
Procurement Notes
Verify the specific package variant (TO-71, SOT-23, or DIP) required for your assembly process against the official datasheet pinout diagrams. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as suffixes may indicate material composition variations. Ensure that static and dynamic electrical parameters meet your system's noise and bandwidth requirements before finalizing procurement.
Selection Notes
Select this component when replacing older Siliconix, Fairchild, or National Semiconductor JFETs like the 2N5912. Consider the LS5912 for applications requiring matched dual JFET pairs with tight differential cutoff voltage tolerances. Evaluate the available package options to ensure mechanical compatibility with your existing PCB layout constraints.
Part Context
Linear Integrated Systems manufactures precision semiconductor components, leveraging expertise from historical industry leaders. The LS5912 belongs to a family of dual JFET amplifiers that includes the LS5911 and LS5912C variants. These devices are engineered to provide superior matching and lower noise compared to standard discrete alternatives.
Replacement Considerations
The LS5912 serves as an improved direct replacement for the 2N5912. Verify pinout compatibility if substituting into legacy designs originally using Siliconix, Fairchild, or National Semiconductor parts.
