2SD1819AQL

Single Bipolar Transistors Overview

The Panasonic 2SD1819AQL is a silicon NPN epitaxial planar transistor designed for general amplification. It features a maximum collector current of 100 mA and a collector-emitter voltage rating of 50 V. The device operates with a transition frequency of 150 MHz and offers a forward current transfer ratio (hFE) ranging from 160 to 460 depending on the specific rank. Packaged in an SMini3-G1 format, it supports automatic insertion via tape or magazine packing.

Single Bipolar Transistors Feature Summary

• High forward current transfer ratio hFE
• Low collector-emitter saturation voltage VCE(sat)
• S-Mini type package allowing downsizing and automatic insertion

Single Bipolar Transistors Applications

• General amplification circuits
• Office equipment
• Communications equipment
• Measuring instruments
• Household appliances

Single Bipolar Transistors Procurement Notes

Verify the component lifecycle status before procurement, as the datasheet indicates maintenance or discontinued classifications. Confirm that the ordering suffix 'QL' corresponds to the specified packaging requirements. Ensure compliance with RoHS directives and validate that the application remains within standard electronic equipment parameters rather than specialized safety-critical systems.

Single Bipolar Transistors Selection Notes

Select this component for low-power general amplification tasks requiring compact surface-mount integration. Consider the complementary 2SB1218A for matched PNP applications. Evaluate the specific hFE rank required by the circuit design, as performance varies across Q, R, and S classifications. Ensure thermal management accommodates the 150 mW power dissipation limit at elevated ambient temperatures.

Single Bipolar Transistors Part Context

This part belongs to the Panasonic 2SD1819 series of small signal transistors. It utilizes a triple diffusion planar process technology optimized for high-speed switching and linear amplification. The SMini3-G1 package provides a footprint suitable for space-constrained printed circuit board layouts while maintaining reliable through-hole or automated placement compatibility.

Single Bipolar Transistors Replacement Considerations

The official complementary counterpart is the 2SB1218A. Verify pinout compatibility and electrical characteristics against other SC-70 packaged NPN transistors if sourcing alternatives.

Single Bipolar Transistors FAQ

What are the available hFE ranks for the 2SD1819A?

The device is classified into three hFE ranks: Rank Q (160 to 260), Rank R (210 to 340), and Rank S (290 to 460). Products without a specific rank classification do not carry a marking symbol.

What is the maximum collector power dissipation?

The maximum collector power dissipation is rated at 150 mW at an ambient temperature of 25°C.

Is the 2SD1819A suitable for aerospace applications?

No. The datasheet specifies that the product is intended for standard applications such as office and household equipment. It is not recommended for special applications like aerospace or life support systems where exceptional reliability is required.