PN4091 TIN/LEAD

Overview

The PN4091 TIN/LEAD is an N-channel Junction Field-Effect Transistor (JFET) manufactured by Central Semiconductor Corp. It utilizes silicon technology and is housed in a TO-92-3 through-hole package. The device features a maximum drain-source voltage of 40 V, a gate-source voltage rating of 40 V, and a gate-source cutoff voltage of 10 V. Key electrical characteristics include a drain current of 30 mA at zero gate-source voltage and a drain-source on-resistance of 30 Ohms. Power dissipation is rated at 625 mW, with an operating temperature range spanning from -65 °C to +150 °C.

Feature Summary

• N-channel JFET configuration for signal processing applications
• Silicon-based construction ensuring stable depletion mode operation
• Through-hole TO-92-3 packaging for standard board mounting

Applications

• Low-noise amplifier circuits
• High-impedance input stages
• Analog switching applications

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm lead-free status and plating composition. Ensure the requested part matches the exact Central Semiconductor Corp designation. Cross-reference datasheet revisions to confirm pinout consistency and electrical parameter tolerances before integration into final designs.

Selection Notes

Select this component when designing circuits requiring high input impedance and low noise characteristics typical of JFETs. The TO-92-3 package suits prototyping and low-volume production where through-hole assembly is preferred. Evaluate thermal management requirements given the 625 mW power dissipation limit and ensure the operating environment remains within the specified temperature range.

Part Context

This component belongs to the discrete semiconductor transistor category, specifically within the junction field-effect transistor segment. Central Semiconductor Corp produces this device using silicon technology, targeting applications that demand reliable analog performance. The TO-92-3 form factor provides a compact solution for single-transistor implementations in electronic assemblies.

Replacement Considerations

Consult official substitution guides for compatible N-channel JFETs in TO-92 packages. Verify that alternative parts match the 40 V voltage ratings and 30 mA current specifications to maintain circuit functionality without redesign.