MMBF4092

Overview

The MMBF4092 is an N-channel JFET switch in a SOT-23 package. It features a drain-gate voltage of 40 V and gate-source voltage of -40 V. The device has a maximum total power dissipation of 350 mW with a thermal resistance of 357 °C/W. Electrical characteristics include a gate-source cutoff voltage range of -7.0 V to -10.0 V, a zero-gate voltage drain current of 15 mA, and a drain-source on resistance of 50 Ω at 1 mA. Input capacitance is 16 pF and reverse transfer capacitance is 5 pF.

Feature Summary

• Designed for low-level analog switching applications
• Suitable for sample and hold circuits
• Compatible with chopper stabilized amplifiers

Applications

• Low level analog switching
• Sample and hold circuits
• Chopper stabilized amplifiers

Procurement Notes

Verify the specific part number suffix against the official ON Semiconductor website to ensure alignment with current system requirements following the Fairchild integration. Confirm that the ordering information matches the updated nomenclature standards, as historical underscores may have been replaced by dashes in the manufacturer's database.

Selection Notes

Select this component based on its specific gate-source cutoff voltage range of -7.0 V to -10.0 V and zero-gate voltage drain current of 15 mA. Ensure the application requires the 50 Ω on-resistance characteristic and operates within the specified 40 V voltage limits. Validate performance parameters for each customer application using technical experts.

Part Context

This device is sourced from Process 51 and is part of the MMBF4091/MMBF4092/MMBF4093 series. It was originally manufactured by Fairchild Semiconductor before being integrated into ON Semiconductor. The product is available in a SOT-23 package with tape and reel packing methods.

Replacement Considerations

MMBF4091 and MMBF4093 are part of the same series but differ in electrical specifications such as cutoff voltage and on-resistance.