This category will list companies that specialize in the manufacture and support of the Semiconductor Industry which includes manufacturers of equipment and supplies, engineering, tooling, wholesalers, distributors, contract manufacturers, etc. URLs that contain only information about semiconductors and their use should be submitted to Science/Technology/Electronics/Semiconductors.
This category is for crystals oscillators, resonators and oscillators modules.

Distributors should be placed in : Business: Industries: Manufacturing: Electronics: Distributors and Vendors

This category is for manufacturers of capacitors.

Distributors should be placed in : Business: Industries: Manufacturing: Electronics: Distributors and Vendors: Components: Passives

This category is for crystals oscillators, resonators and oscillators modules.
This category is for crystals oscillators, resonators and oscillators modules.

Distributors should be placed in : Business: Industries: Manufacturing: Electronics: Distributors and Vendors

Category for manufacturers of electronic filters.
Category for manufacturers of electronic filters.

Distributors should be placed in : Business: Industries: Manufacturing: Electronics: Distributors and Vendors

Category for the manufacturers of lamps and light indicators used as a component part of a system.
Category for the manufacturers of lamps and light indicators used as a component part of a system.

This cat should include discrete LEDs and similar products.

Manufacturers of displays and CRTs should goto Business: Industries: Manufacturing: Electronics: Components: Displays and Readouts

Distributors and Vendors should be placed in : Business: Industries: Manufacturing: Electronics: Distributors and Vendors: Components: Optoelectronics

This category lists professional companies involved in the microwave industry. The term microwave is often defined as the part of the electromagnetic spectrum from 300 MHz to 300 GHz. However, in the common venacular, the microwave band is often extended to encompass much higher frequencies. This band is further subdivided into the millimeter-wave band extending from 30-300 GHz and the submillimeter-wave band above 300 GHz.
This category includes listings for manufacturers of acoustic transducers and sensors. Distributors should be placed in : Business: Industries: Manufacturing: Electronics: Distributors and Vendors
This category includes listings for manufacturers of acoustic transducers and sensors.

Distributors should be placed in : Business: Industries: Manufacturing: Electronics: Distributors and Vendors

This category is for the manufacturers of discrete semiconductor devices. For example diodes and FETs. Also the place for arrays of similar discrete components in one device.

The place for devices with more than one type of device is the Integrated Circuits category.

This category is for vendors and distributors of components used during the manufacture of electronic products.
Distributors of electronics product assembly hardware and materials such as enclosures, filters, heat sinks and thermal management, power supplies and batteries, transformers and wire, cable and tubing are to be found in Business/Industries/Manufacturing/Electronics or Business/Industries/Manufacturing/Electrical topical categories.