J211

Overview

The onsemi J211 is an N-channel Junction Field-Effect Transistor (JFET) designed for radio frequency applications. It utilizes silicon technology and is housed in a TO-92-3 (TO-226AA) through-hole package. The device supports a maximum drain-source voltage of 25 V and a continuous drain current of 20 mA. Classified as obsolete, this component was historically utilized in RF circuits requiring low-noise amplification or switching capabilities within the specified voltage and current limits.

Feature Summary

• N-channel JFET configuration optimized for RF signal processing
• Through-hole mounting capability via TO-92-3 package

Applications

• Radio frequency amplification stages
• Low-noise signal processing circuits
• RF switching applications

Procurement Notes

This component is officially listed as obsolete by the manufacturer. Verification of availability requires checking distributor surplus channels. Import tariffs may apply if shipping to the United States. Confirm RoHS compliance status with the specific supplier lot, as end-of-life parts may vary in environmental certification documentation.

Selection Notes

Designers should consider the MMBFJ211 as a surface-mount alternative within the same family. Verify that the required circuit operates within the 25 V and 20 mA limits. Ensure the PCB layout accommodates the TO-92-3 through-hole footprint if retaining this specific package type for legacy compatibility.

Part Context

The J211 belongs to the J210-J212 series of N-channel JFETs produced by onsemi. These devices share similar electrical characteristics and are intended for general-purpose RF applications. The series provides a standardized solution for low-noise front-end stages in communication equipment.

Replacement Considerations

The MMBFJ211 is a direct functional substitute offered by onsemi. It maintains identical electrical specifications but utilizes a SOT-23-3 surface-mount package instead of the TO-92-3 form factor.