They have more than 100 years of Manufacturing Excellence with very specialized tools for the Telecommunication, Electronics and Computer Industries. Precision Tools, Devices and Instruments.

Jonard Industries and OK Industries

OK Industries Division – 1946 – Tools and Instruments for telecommunications and electronics industries. Specialized Leaders in the manufacture of Wire Wrapping, and Benchtop Tools including Integrated Circuit (IC) Tools, Fume Absorbers and Desoldering Pumps.

Jonard Industries Corp – 1958 – is a World Class Manufacturer of Precision Hand Tools for the Telecom, Computer, Military and Electronic Industries.

CATV Telecom Installers Kit - TK-450M - Jonard

CATV/Telecom Installers Kit – TK-450M – Jonard

Kit contains the basic service tools essential for equipment installation, repairs and cable preparations. Fiber Optic, Coax, or Copper this versatile kit completes the requirements for a VOIP installer, Fiber Technician or Communications Specialist.

Jonard Industries Corp.
134 Marbledale Road Tuckahoe, NY 10707

Manufactures electronic and electromechanical components like Jacks, Connectors, Power Cords, Switches, Plugs, EAC Power Receptacles. etc.

Switchcraft – Electromechanical Components

These are used in areas like audio, video, telecommunication, medical, military and instrumentation industries.etc.

“Switchcraft, Inc. was established in 1946 to manufacture jacks, plugs, and switches, mainly for the communications industry. The original plant was located on West Diversey Street in Chicago. ”

Switchcraft - Electromechanical Components

“Completely enclosed, lighted pushbutton switches feature long-life, highly-reliable, leaf-springs.”

Available with or without barriers, full or split-face display. Mounts with clamp-type bracket; no screws, washers or nuts needed.

Push Lite, Front Mount Square Pushbutton Switches

Switchcraft, Inc.
5555 N Elston Ave. Chicago, IL 60630, USA

CWS provides full service from design, prototyping, pre-production run to volume production. They are experts in designing and manufacturing of magnetic components such as inductor, choke, coil and transformers. These magnetics are designed with ferrites, iron powder, MPP, sendust or high flux cores in all shapes and sizes.

CWS – Magnetics Coils Inductors Transformers

  • EMI / RFI, Inline Filters, Chokes
  • Power Magnetic
  • Inductors and Differential Mode Chokes
  • Electromagnetic Interference (EMI) Device
  • Power Line Reactor Coil
  • Antenna Coils

CWS - Magnetics Coils Inductors Transformers

Custom Design –

At CWS we understand that that common inductor coil or chokes need to be customized in order to provide top performance within a circuit. Our designers and engineers can provide the technology needed to ensure your coil can combat EMI issues and also interference with other circuits.

CWS Coil Winding Specialist
353 West Grove Ave Orange, California 92865

Manufacturer of dip, keylock, leaf, push button, rocker, rotary, slide, snap action, tact, and toggle switches. They make Sealed, illuminated pushbutton switches, SMT pushbutton switches and illuminated rocker switches too.

E-Switch – Versatile and Aesthetic Switches

E-Switch estd. 1979  manufacture electromechanical switches to the telecom, high tech, instrumentation, industrial, audio/visual, appliance and consumer markets.

E-Switch - Versatile and Aesthetic Switches

Series PB1973 Snap in Illuminated Panel Mount Pushbutton

These rectangular illuminated panel mount pushbutton switches come in many colors. Great for telecommunications, performance audio, external hard drives and modems, networking, computers, servers, instrumentation and low power on/off designs.

E-Switch, Inc.
7153 Northland Drive N. Minneapolis, MN 55428, USA

In the 1940s radio was an important means of communication. Super heterodyne radio used Murata’s tubular 500pf ceramic capacitors with  titanium oxide as dielectric material for temperature compensation.

Murata Manufacturing – Electronic Components

Products Include

Passive components like Capacitors, Resistors, Thermistors, Coils(Inductors), Delay Lines, Resonators, Noise Suppression Products and EMI Suppression Filters.

Audio Visual Parts like Spherical Speaker Products, Sound Components Filters, Modules for Audio Visual Equipment,

They also have Components and Modules for Communication Equipment. Special Sensors and Optical Products.

Murata Wireless Connectivity Products

Wireless Products –  Murata Wireless Connectivity Products and Platforms

Murata RF modules are designed to simplify wireless development and certification by minimizing the amount of RF expertise you need to wirelessly enable a wide range of applications.

Reasons for requiring EMI suppression filters

Chapter 1 describes the reasons for using EMI suppression filters, and explains how shields and filters used for electromagnetic noise suppression work.

Caddock Electronics, Inc. manufactures precision film resistors and resistor networks. Caddock uses unique resistance film technologies and process technologies to create solutions for performance demanding applications. They have High Resistance types in the Giga Ohm range and also Precision Types used in Analog Sections of Instrumentation.

Caddock High Performance Film Resistors

The product line consists of over 250 models, including high voltage resistors, current sense resistors, chip resistors, high frequency resistors, rf resistors, load resistors, pulse resistors, and non-inductive power resistors. Custom resistors and resistor network solutions are also available.

High Resistance Resistors from Caddock
Shown above are the High Resistance Resistors from Caddock – 1 Mega Ohms to 10 Giga Ohms

Products Include –

  • Non-Inductive Resistors, Power and Precision
  • Current Sense Resistors
  • Heat Sink Mountable Resistors (TO-220 and TO-126 Power Packages)
  • High Voltage Resistors
  • Low Temperature Coefficient Resistors (Low TC)
  • Ultra Precision Resistors
  • Surface Mount Power Resistors
  • Transient Tolerant Precision Resistors

Caddock Electronics, Inc.
1717 Chicago Ave., Riverside, CA 92507-2364

They are in the manufacturing and marketing of aluminum electrolytic capacitors. They make electrolytic capacitors from SMT up to computer grade.

Richey Capacitor - Aluminum Electrolytic Capacitors

Richey Capacitor – Aluminum Electrolytic Capacitors

Richey offers a full line of capacitors including:

  • Aluminum Electrolytic Capacitors
  • Motor Run / Motor Start Capacitors
  • Film Capacitors

Richey is headquartered in Nashville, Tennessee where the company markets the capacitors manufactured by its affiliated factories located in Taiwan.

Richey Capacitor, Inc. –
1219 4th Avenue, South Nashville, TN. 37210, USA.