Saturday, May 10, 2008

OKI Sensor - Reed Switches and Sensors

Oki Sensor Device is a specialty manufacturer of reed switches and related products developed specifically to respond to these user needs.



OKI Sensor - Reed Switches and Sensors



Products include Reed Switches, Proximity Switches, Shock Sensors.



"The reed switch was invented by Dr. W. B. Ellwood at Bell Telephone Laboratories in 1936. The first application was made during 1938 when the reed switch was used as a selector switch in coaxial carrier equipment. Later, improvements of the reed switches were made in parallel with the development of the telecommunications technology."



OKI Sensor - Reed Switches and Sensors



"Structure and Operating Principles As shown in Figure 3.1, the reed switches comprise two ferromagnetic reeds placed with a gap in between and hermetically sealed in a glass tube. The glass tube is filled with inert gas to prevent the activation of the contacts. The surfaces of the reed contacts are plated with rhodium."



from The Oki Reed Catalog



OKI Introduces High Switching Current Reed Switch This device achieves industry-first 5 A maximum carry current and 2 A maximum switching current with glass tube length of 16.5 mm



OKI  High Switching Current Reed Switch



High current reed switch, ORD872



Oki Sensor Device Corporation.

Tachihi Bldg. No7 4th Fl. 6-1-1, Sakae-cho, Tachikawa-shi, Tokyo 190-0003, Japan

Hasco Components - Reed and Electromechanical Relays

Hasco Components has been in the business of Relays, Reed Switches and Reed Relays since 1976.



Hasco Components - Reed and Electromechanical Relays



Product line encompass 500 different types of relays and electromechanical relays, as well as 24 types of reed relays, that range from milliamps to 80 amps. They include both DC and AC coil voltages and can also switch from one pole to 4 pole



RPR Series RPR SeriesSPDT 10 Amp





10A switching capability, Subminiature, standard PCB layout, Plastic sealed and flux proofed types available.



611 Series Mini Reed Relays 0.5 Amp







Encapsulated Body, Small size, PCB Mounting, Available with external shield.



delabs Notes



Reed relays can be used even for switching High Frequency and Low Level Signal. The control circuit should not induce cross talk. It is good for even making precision Attenuators.  



Hasco Relays and Electronics International Corp.

906 Jericho Turnpike New Hyde Park, NY 11040, USA.

Velleman - Kits Tools and Equipment

"VELLEMAN nv has been a major distributor of electronics for more than 35 years. Our warehouses contain over 18,000 different products from 50 brands."



Velleman - Kits Tools and Equipment


  • Velleman kits & oscilloscopes

  • Transformers, coils & motors

  • Semiconductors & sensors

  • Passive components

  • Batteries & chargers

  • Adapters & power supplies

  • Enclosures


They have the Test bench tools, parts and also all the prototyping materials.




A Velleman Power Supply for the Test bench



A Velleman Power Supply for the Test bench



Velleman Inc. 7354 Tower Street, Fort Worth, Texas 76118


Thursday, May 8, 2008

Pyromation - Thermocouples and RTD

Pyromation - Thermocouples and RTD

Pyromation - Thermocouples and RTD


  • Industrial Thermocouple Elements, Protection Tubes and Assemblies

  • Magnesium Oxide Insulated Thermocouple Assemblies

  • General Purpose RTD's

  • RTD Temperature Transmitters

  • Rubber Compound and Aggregate Mixer


Custom Design



"Our in-house machine shop - complete with metal cutting, threading, shaping and finishing machinery, and stocked with a variety of raw material - compliments our Engineering, Design, and Production teams to manufacture sensors with special component parts."



Pyromation, Inc.

5211 Industrial Road, Fort Wayne, IN 46825, USA

Current Solutions OEM Power Products

OEM Power Supply Resource Inverters, Converters and Adapter. They help you in selecting the proper power supply as they have the experience and the Specialists.

Current Solutions OEM Power Products

They match your product with the ideal power supply taking into account all the intricate variables..  

Product Range Includes
  • Open Frame, Enclosed and PC ATX
  • DC/AC Inverters and DC/DC Converters
  • AC/DC Power Supplies
  • Rackmount, Din-Rail and PCB Mount
Current Solutions OEM Power Products

Inverter S150 from Cotek

This is a True Sine Wave Output Inverter with a THD 6% Typ. It is DC to AC Conveyor. That means you use Batteries to derive a High Voltage AC like the Mains Utility Supply.

The output selection of 100/110/120 VAC covers the US region and similar areas. The input being 12VDC / 24VDC.  This is a small 150 Watts unit ideal for Small Solar power systems and lighting.

Specifications Include
  • Input & output fully isolation
  • Input polarity reverse / under voltage / over voltage protections
  • Output short circuit / overload / over temperature protections
  • Capable of driving highly reactive and capacitive loads
Current Solutions, Inc.
P.O. Box 1538, Land O' Lakes, FL 34639-3929, USA.

Tuesday, May 6, 2008

The Circuits Shop - Electronics in Meccano


The Circuits Shop - Electronics in Meccano


The Electronics in Meccano Circuits Shop gives you access to the entire Maplin Electronics catalogue. In addition to the essential components and tools you'll need as an electronics hobbyist, Maplin stock a wide range of electrical items for your home, car, computer and elsewhere.


Electronics in Meccano


Articles on motor control, components, and practical matters like soldering, along with full shopping lists for each circuit described.