Chip packages

SOT-23

Small Outline Transistor

Tiny 3- to 8-pin package for small transistors and regulators.

How it looks

Real image: CORE3588, rendered by KiCad from our board file

CORE3588 top side, the two transistors that drive the status lights.

1Q2, a small transistor in SOT-23: three legs, two on one side, one on the other.
2Q1, the same part again. Each body is about 2.9 x 1.3 mm.

Real image: CORE3588, rendered by KiCad from our board file (angled 3D view)

The same two parts in a tilted KiCad 3D render. The red block behind them is the recording light.

1Q2 (front) and Q1 (behind) at an angle: you can see the three legs bend down onto their pads.

A small cousin of SOIC; often holds a MOSFET or an LDO such as the AP2112K-3.3. It is SMD / SMT, placed by pick-and-place.