TO-218 COMPONENT PACKAGE

TO-218 Component Package

Article by:
Date Published:
Last Modified:

1. Overview

Name

TO-218 (Transistor Outline 218, JEDEC)

Synonyms

  • CASE 340D-02 (On Semi)[1]

  • SOT-93 (On Semi)[4]

Similar To

  • TO-247 (the TO-247 is considered the "upgrade" from this package)

Variants

  • TO-218-3 (3 lead variant, most common)

  • TO-218-1 (1 lead variant, have not found any components in this package, only a reference to it’s dimensions)

Mounting

TH

Pin Count

2-5[3]

Pitch

5.45mm (0.215")[1]

Solderability

Suitable for wave soldering. Easy to solder by hand.

Thermal Resistance

Package LxWxH

15.20x4.90x20.35mm (max)[3]

Typical PCB Land Area

n/a

3D Models

n/a

Common Uses

  • BJTs

  • MOSFETs

2. TO-218-3 (3 Lead Variant)

Figure 1 shows the dimensions of the TO-218-3 component package.

to 218 package dimensions on semi
Figure 1. Package dimensions of the TO-218 component package[4].

When housing a BJT, the pinout is usually:

  • 1: Base

  • 2: Collector

  • 3: Emitter

  • 4 (Tab): Collector

3. TO-218-1 (1 Lead Variant)

Fairchild Semiconductor has dimensions for a "single-lead" TO-218 package, as shown in Figure 2. Curiously, I have not found any components that use this package.

to 218 single lead dimensions fairchild semiconductor
Figure 2. Dimensions for a single-lead TO-218 component package[2].

References


Authors

Geoffrey Hunter

Dude making stuff.

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License .

Related Content:

Tags

comments powered by Disqus