All dimensions are in millimeters (inches). T olerance is ±0.25mm (.010") unless otherwise noted. Protruded resin under flange is 1.0mm (.04") max.Lead spacing is measured where the leads emerge from the package. Specifications are subject to change without notice. Precautions for ESD: Static electricity and surge can damage the LED. It is recommended to use a wristband or anti-electrostatic glove when handling the LED. All devices, equipment and machinery must be properly grounded.