It's compatible with breadboard and you can easy to make your protype with the square led.

Feature:

Uniform light emitting area.

Easily mounted on P.C. boards or industry standard sockets.

Flush mountable.

Excellent on/off contrast.

Can be used with panels and legend mounts.

Specification:

Power dissipation: 62.5mW

DC Forward Current: 25mA

Peak Forward Current: 140mA

Reverse Voltage: 5V

Operating / Storage Temperature: -40°C To +85°C

Lead Solder Temperature: 260°C For 3-5 Seconds