2SC3956E

Single Bipolar Transistors Overview

The 2SC3956E is a small-signal N-channel silicon junction field-effect transistor (JFET) manufactured by onsemi. It utilizes the TO-71 metal can package, which provides high reliability and hermetic sealing for demanding environments. The device operates in depletion mode and is designed for low-noise amplification and switching applications where stable performance under varying thermal conditions is required.

Single Bipolar Transistors Feature Summary

• Hermetically sealed TO-71 metal can construction ensures long-term stability and protection against environmental factors.
• N-channel silicon JFET technology optimized for low-noise signal processing and linear amplification.
• Depletion mode operation allows for direct coupling and simple biasing configurations in analog circuits.

Single Bipolar Transistors Applications

• Low-noise preamplifiers in audio and instrumentation systems
• High-reliability analog switching circuits
• Military and aerospace electronic subsystems requiring hermetic components

Single Bipolar Transistors Procurement Notes

Verify the specific suffix E against the official onsemi datasheet to confirm pinout and electrical tolerances. Ensure the procurement channel sources genuine onsemi products with traceable lot codes. Confirm RoHS compliance status if required for the specific assembly process, as legacy TO-71 packages may have distinct material declarations compared to modern surface-mount devices.

Single Bipolar Transistors Selection Notes

Select this component when hermetic sealing is mandatory for the application environment. The TO-71 package offers superior thermal dissipation and mechanical robustness compared to plastic equivalents. Consider the depletion mode characteristic for circuit design, as it conducts current at zero gate-source voltage. Evaluate noise specifications against alternative JFETs if ultra-low noise is critical for the signal chain.

Single Bipolar Transistors Part Context

This part belongs to the family of discrete semiconductor transistors produced by onsemi. It serves as a ruggedized alternative to standard plastic-packaged JFETs, targeting industries with strict qualification standards. The TO-71 form factor is increasingly rare in consumer electronics but remains relevant in specialized industrial and defense sectors.

Single Bipolar Transistors Replacement Considerations

Direct replacements must match the TO-71 package dimensions and pin configuration. Verify that substitute JFETs meet the same breakdown voltage and current requirements. Cross-reference with other manufacturers offering hermetic TO-71 JFETs if onsemi supply is constrained.