J111-D26Z

Overview

The J111-D26Z is an N-channel depletion-mode Junction Field-Effect Transistor (JFET) manufactured by onsemi. It is housed in a TO-92-3 package with kinked leads for through-hole mounting. The device operates as a single-element switch with a gate-source breakdown voltage of -35 V and a gate-source cutoff voltage of -5 V. Key electrical parameters include a drain-source current of 5 mA at Vgs=0, a drain-source on-resistance of 50 Ohms, and a power dissipation rating of 625 mW. The component is designed for silicon-based applications within a temperature range of -55°C to 150°C.

Feature Summary

• N-channel depletion mode operation suitable for switching applications
• Robust thermal performance with 625 mW power dissipation capability
• Through-hole TO-92-3 packaging with kinked leads for secure board mounting

Applications

• Chopper stabilized amplifier circuits
• Low-level signal switching
• High-impedance input stages

Procurement Notes

Verify the specific suffix D26Z corresponds to the required tape and reel or cut tape configuration during sourcing. Confirm RoHS compliance status directly with the manufacturer's latest documentation, as environmental declarations may vary by production batch. Ensure the ordering quantity aligns with the manufacturer's standard factory pack sizes to avoid partial reel handling issues.

Selection Notes

Select this component when a reliable N-channel JFET switch is required for low-current applications. The 50 Ohm on-resistance and 5 mA saturation current define its suitability for small-signal routing rather than high-power switching. Compare against the J112 and J113 variants if different threshold characteristics or pinout configurations are needed for the specific circuit topology.

Part Context

The J111 belongs to onsemi’s family of N-channel JFET chopper transistors, which also includes the J112 and J113 models. These devices share similar physical packaging and fundamental depletion-mode operation but differ in specific electrical thresholds and internal construction optimizations. The J111 serves as a standard option for general-purpose analog switching where moderate on-resistance is acceptable.

Replacement Considerations

Direct substitutes within the same series include the J112 and J113 from onsemi, though their specific electrical parameters such as Vgs(off) and Rds(on) may differ. Cross-manufacturer equivalents like the 2N5484 or 2N5485 should be evaluated for pin compatibility and parameter matching. Verify that any replacement maintains the TO-92-3 form factor and depletion-mode behavior.