MJE180STU

Single Bipolar Transistors Overview

The MJE180STU is an NPN epitaxial silicon bipolar junction transistor manufactured by onsemi, formerly Fairchild Semiconductor. It features a TO-126-3 through-hole package with dimensions of 7.62 mm length, 4.57 mm width, and 4.57 mm height. The device supports a maximum collector-emitter voltage (VCEO) of 80 VDC and a collector-base voltage (VCBO) of 100 VDC. It handles a continuous collector current of 3 A with a power dissipation rating of 12.5 W. The unit operates within a temperature range of -65°C to +150°C and offers a DC current gain (hFE) between 50 and 250.

Single Bipolar Transistors Feature Summary

• NPN epitaxial silicon construction for reliable switching performance
• High collector current capability suitable for moderate power applications
• Integrated thermal stability via TO-126 flange mount design

Single Bipolar Transistors Applications

• General purpose switching circuits
• Audio amplifier output stages
• Linear regulator pass elements

Single Bipolar Transistors Procurement Notes

Verify the manufacturer designation as onsemi, which acquired Fairchild Semiconductor's discrete product line. Confirm the specific suffix STU corresponds to the tube packaging format rather than tape and reel variants. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the datasheet revision date to confirm electrical characteristics have not changed since the original Fairchild publication.

Single Bipolar Transistors Selection Notes

Select this component when an NPN transistor with 80 V collector-emitter breakdown and 3 A continuous current capacity is required. The TO-126 package provides adequate heat sinking for 12.5 W dissipation in open-air or heatsinked environments. Consider the hFE range of 50 to 250 for base drive calculations. This device serves as a direct functional replacement for legacy Fairchild MJE180 units in existing designs.

Single Bipolar Transistors Part Context

The MJE180 series belongs to the family of medium-power NPN transistors designed for robust general-purpose applications. The MJE180STU variant specifically denotes the through-hole tube packaging style. It complements the PNP counterpart, the MJE172, allowing for complementary push-pull configurations in amplifier and driver circuits.

Single Bipolar Transistors Replacement Considerations

Public confirmed substitute part numbers include MJE180STU_NL.