2SD2185GRL

Overview

The Panasonic 2SD2185G is a silicon NPN epitaxial planar transistor designed for low-frequency output amplification. It supports a collector current of 3A with a peak rating of 4A, and withstands collector-emitter voltages up to 50V. The device features a transition frequency of 120MHz and a minimum DC current gain (hFE) ranging from 80 to 340 depending on the rank. Packaged in the MiniP3-F2 surface-mount format, it offers low collector-emitter saturation voltage.

Feature Summary

• Low collector-emitter saturation voltage for efficient switching
• Mini Power type package enabling equipment downsizing
• Supports automatic insertion via tape or magazine packing

Applications

• Low-frequency output amplification circuits
• General electronic equipment
• Household appliances

Procurement Notes

Verify the specific hFE rank (R or S) required for your circuit design, as gain varies significantly between classifications. Confirm that the MiniP3-F2 footprint matches your PCB layout. Check the manufacturer's lifecycle status page for current availability, as this component may be subject to maintenance or discontinuation plans.

Selection Notes

Select this component when high current handling near 3A is necessary alongside low saturation voltage. Ensure the application operates within standard general electronic parameters rather than specialized automotive or aerospace environments. Verify thermal management capabilities, as power dissipation decreases linearly with ambient temperature above 25°C.

Part Context

This part belongs to Panasonic's lineup of small signal and power bipolar transistors. It serves as the complementary NPN counterpart to the 2SB1440G PNP transistor. The MiniP3-F2 package provides a compact solution compared to traditional through-hole options while maintaining robust electrical characteristics for amplifier stages.

Replacement Considerations

The datasheet explicitly identifies the 2SB1440G as the complementary device. No other direct substitute part numbers are documented in the provided source material.