Category: Glossary

( Milliseconds) One thousandth of a second.

An optical fiber that has a core large enough to propagate more than one mode of light The typical diameter is 62.5 micrometers.

(MMLD) Synonym for Multilongitudinal mode laser.

Millivolt. One thousandth of a Volt. mW Milliwatt. One thousandth of a Watt.

One billionth.

Measure of force generally used to specify fiber optic cable strength.

National Electrical Manufacturers Association.

The sum of the lead width and lead spacing. Typically stated as the distance between the center of one lead to the center of an adjacent lead.

The metal coating on a component lead. Common lead plating materials are pure tin (Sn), pure gold (Au), and eutectic tin/lead solder (63% Sn/37% Pb).

The distance between adjacent leads in a defined area of a component.

In reference to component leads, it is the sum of the thickness of the base metal, plating, and total fabrication tolerances. Lead thickness is a critical element in determining the dimensions and proper clearances in excise and form tooling.

The width of the lead in a defined area of a component.

Electronic devices that have electrical leads extending from the body of the package.

Electronic devices which do not have electrical leads extending from the body of the package. These packages could have solder bumps or lands located on the package.

A small amount of current that flows through or across an insulator between two electrodes.

Light Emitting Diode. LEDs work on the principle of spontaneous emission of light as opposed to stimulated emission. LEDs usually have high bandwidth but relatively low power. LEDs operate in the infrared, visible and ultraviolet regions of the optical spectrum.

Synonym optical fiber.

The amount of a signal’s power, expressed in dB, that is lost in connectors, splices, or fiber defects.

One million.

The SI base unit of length, approximately 39.37 inches.