Wholesale Electronic Component Distributor

Hard to Find and Obsolete Electronic Components

Electronic Component Catalog
Click on the computer to search our electronic component inventory catalog.

We are always buying excess inventory. We buy the following surplus electronic components:

- Integrated Circuits
- Transistors
- Diodes
- Capacitors
- Connectors

Surplus Diodes



We buy the following items:

- Integrated Ciruits
- Transistors
- Diodes
- Capacitors
- Connectors

Military Electronic Components

Craig Cox - VP of Purchasing EXT) 144

Nicole Wilson - Purchasing Assistant EXT) 128

Kimberly Zavala - Purchasing Assistant EXT) 130


Surplus Diodes

H&R Enterprises purchases surplus Diodes. Please contact Craig Cox, Nicole Wilson or Kimberly Zavala for more information about selling your surplus Diodes



We have just updated our website. If you have any questions or comments about our website or electronic components, contact us below.

H&R Enterprises
Electronic Component Distributor
20150 Sunburst Street
Chatsworth, CA 91311

E-mail us

H&R Enterprises Buys
Surplus Diodes

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A diode functions as the electronic version of a one-way valve. By restricting the direction of movement of charge carriers, diodes allow an electric current to flow in one direction, but blocks it in the opposite direction.

Diodes are called a half wave rectifiers when they are used to convert alternating current electricity into direct current, by
removing the negative portion of the current.

A special arrangement of four diodes that will transform an alternating current into a direct current, using both positive
and negative excursions of a single phase alternating current, is known as a diode bridge, single-phase bridge rectifier, or
simply a full wave rectifier.

With a split (center-tapped) alternating current supply it is possible to obtain full wave rectification with only two
diodes. Often diodes come in pairs, as double diodes in the same housing.

When it is desired to rectify three phase power, one could rectify each of the three phases with the arrangement of four
diodes used in single phase, which would require a total of 12 diodes. However, due to redundancy, only six diodes are needed to make a three phase full wave rectifier. Most devices that generate alternating current (such devices are called
alternators) generate three phase alternating current.

Electronic Component Distributor
Surplus Capacitors : Surplus Transistors : Surplus Diodes :
Surplus Connectors : Military Surplus Electronics : Integrated Circuits
Search by Part Numbers

We Buy and Sell Industrial, Commercial and Military Electronic Component Parts

H&R ENTERPRISES Inc. is a wholesale electronic component supplier of surplus integrated circuits, semiconductors, transistors,
diodes, connectors, capacitors and other lesser hard to find and obsolete electronic components.
We currently have over 100 million integrated circuits in stock (located in our electronic component catalog),
consisting of 200,000 line items, housed in our 22,000 square foot facility. Formed in 1970, H&R ENTERPRISES' mission is to
provide quality service to commercial and military industries all over the world, maintain a knowledgeable sales staff and
guarantee same day shipments, while carrying an extensive inventory of industrial, commercial and military electronic components.
H&R Enterprises is also always looking to buy your excess electronic components.
Contact us for more information about selling your surplus electronic components.

H&R Enterprises, Inc
Electronic Component Supplier
Semi-Conductor Distributor
Obsolete, Hard To Find and Discontinued
Electronic Components