2SB1218ASL

Single Bipolar Transistors Overview

The Panasonic 2SB1218ASL is a silicon PNP epitaxial planar transistor designed for general amplification. It operates with a collector-emitter voltage of -45 V and a continuous collector current of -100 mA, dissipating up to 150 mW. The device features a high forward current transfer ratio (hFE) ranging from 160 to 460 depending on the rank. Packaged in an S-Mini (SC-70) format, it offers a transition frequency of 80 MHz and low collector output capacitance of 2.7 pF.

Single Bipolar Transistors Feature Summary

• High forward current transfer ratio suitable for efficient signal amplification
• Compact S-Mini package facilitates equipment downsizing and automated insertion
• Complementary design pairing with the 2SD1819A NPN transistor

Single Bipolar Transistors Applications

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

Single Bipolar Transistors Procurement Notes

Verify the specific hFE rank suffix (Q, R, or S) required for your circuit's gain specifications before ordering. Confirm that the component meets the intended application standards, as it is designated for general electronic equipment rather than specialized safety-critical systems. Ensure compliance with RoHS directives if applicable to your manufacturing requirements.

Single Bipolar Transistors Selection Notes

Select this component when a compact PNP transistor with moderate current handling and high gain is needed. The SC-70 package is ideal for space-constrained designs requiring automatic placement. Consider the complementary 2SD1819A if a matched pair is necessary for push-pull configurations. Verify thermal management capabilities against the 150 mW dissipation limit.

Single Bipolar Transistors Part Context

This part belongs to Panasonic's lineup of small-signal transistors intended for standard consumer and industrial electronics. It serves as a general-purpose amplification device within the broader category of discrete semiconductor components used in analog signal processing and switching applications.

Single Bipolar Transistors Replacement Considerations

The datasheet explicitly identifies the 2SD1819A as the complementary NPN counterpart. No other direct substitute part numbers are documented in the provided source material.