KSK596PCWD

Overview

The KSK596PCWD is an N-channel Junction Field-Effect Transistor (JFET) manufactured by onsemi. It operates with a maximum drain current of 1 mA and a power dissipation rating of 100 mW at 25°C ambient temperature. The device features a gate-drain breakdown voltage of -20 V and a gate-source cut-off voltage ranging from -0.6 V to -1.5 V. Drain current specifications vary by classification, spanning 100 µA to 350 µA. The component utilizes a TO-92S1 surface-mount package and supports junction temperatures up to 150 °C.

Feature Summary

• Designed specifically for capacitor microphone applications in audio and telephone equipment
• Provides excellent voltage characteristics suitable for sensitive signal processing
• Delivers superior transient response capabilities

Applications

• Audio equipment circuits
• Telephone systems
• Capacitor microphone preamplifiers

Procurement Notes

Verify the specific manufacturer origin, as the datasheet indicates Fairchild Semiconductor copyright while the brand is listed as onsemi. Confirm the exact suffix meaning regarding packaging or binning if critical for integration. Ensure the component meets all absolute maximum ratings during operation to prevent device failure.

Selection Notes

Select this JFET when low noise and high linearity are required for microphone input stages. Consider the IDSS classification bins to match specific gain requirements. Evaluate the thermal constraints carefully due to the low power dissipation limit of 100 mW in the small TO-92S1 package.

Part Context

This component belongs to the family of silicon N-channel JFETs designed for low-power analog signal applications. It serves as a specialized active element for converting acoustic signals into electrical currents within condenser microphone assemblies. The device represents a legacy part originally developed by Fairchild Semiconductor.

Replacement Considerations

Public confirmed substitute part numbers: None identified.