2SC3935GQL

Overview

The Panasonic 2SC3935GQL is a silicon NPN epitaxial planar transistor designed for high-frequency amplification, oscillation, and mixing applications. It operates within an absolute maximum collector-emitter voltage of 10 V and a collector current limit of 50 mA. The device features a transition frequency (fT) ranging from 1.4 to 2.5 GHz at 7.2 mA emitter current. Electrical characteristics include a forward current transfer ratio (hFE) between 75 and 220, a collector output capacitance (Cob) of approximately 1.1 pF, and a reverse transfer capacitance (Crb) of 0.35 pF. It is housed in the SMini3-F2 surface-mount package.

Feature Summary

• High transition frequency suitable for UHF band operations
• Minimized collector output and reverse transfer capacitances
• S-Mini type package facilitating equipment downsizing and automated tape insertion

Applications

• High-frequency amplification circuits
• Oscillation circuitry
• Mixing applications

Procurement Notes

Verify component authenticity by checking the marking symbol '1S' on the SMini3-F2 package against official Panasonic documentation. Confirm RoHS compliance status and review the manufacturer's lifecycle page for maintenance or discontinuation updates before finalizing procurement plans.

Selection Notes

Select this component when designing circuits requiring high-speed switching or RF signal processing with low parasitic capacitance. Ensure the operating collector current remains below 50 mA and the junction temperature does not exceed 150 °C. Verify that the required hFE gain falls within the specified P or Q rank ranges for the target application.

Part Context

This part belongs to the Panasonic 2SC3935 series of small-signal transistors. It utilizes a silicon NPN epitaxial planar structure optimized for ultra-high frequency performance. The device is intended for standard electronic equipment such as communications instruments and general-purpose measuring devices.

Replacement Considerations

Consult the official Panasonic semiconductor database for verified substitute part numbers. Do not assume functional equivalence with other NPN transistors without confirming matching electrical parameters and pin configurations.

FAQ

What is the typical transition frequency (fT) of the 2SC3935GQL?

The transition frequency typically ranges from 1.4 GHz to 2.5 GHz when measured at an emitter current of 7.2 mA and a collector-base voltage of 2.4 V.

How is the 2SC3935GQL packaged?

It is supplied in the SMini3-F2 package, which is a small outline package designed for automatic insertion via tape packing.

What are the absolute maximum ratings for collector-emitter voltage?

The absolute maximum rating for collector-emitter voltage (VCEO) with the base open is 10 V.