Welcome to the seMag web site!
Company Profile
seMag Components and Cotra Enterprise Co,
of Taiwan.
seMag Components Inc. is part the organization, Cotra Limited. Thru a cross-ownership
arrangement with Cotra Enterprise Co of Taiwan, and Cotra HK, seMag markets in North America the components produced by Cotra
in Taiwan and China. seMag and Cotra operate separaty...but have common ownership.
seMag CA. is an Engineering
Design facility with Marketing, Customer Service, and Warehousing of its components sold in North America. seMag specializes
in the design of Custom Components and Circuits for Power supplies, Power Sources and Communication circuits. It's specialty
is Engineering and Technical design of Magnetic and Discrete Power Semiconductor components.
The company was established
in 1991 serving U.S. Power supply, Industrial Control, Military and Data Communication companies.
Manufacturing COTRA (seMag) headquartered in Taiwan, Supply seMag the manufacturing
capability and services for Custom and Standard (seMag Logo) Semiconductors and Magnetic components. Manufacturing is in Taiwan
and the PRC.
SalesThe seMag sales arm is your local sales representatives. Call seMag to locate
your local Sales Represenative seMag serves as a U.S. based Stocking, Distribution and Design arm for seMag/Cotra.
Stocking is in The San Francisco Bay area and products sold are either FOB San Jose California or Taipei Taiwan.
Products...The company’s products are: -
Semiconductors
Standard Rectifiers,
Schottky Barrier Rectifiers, Fast Recovery Rectifiers, Bridge Rectifiers, Transient Voltage Suppressors. and Integrated Circuits
for Power and supply management.
Magnetics
Wall mount Transformers, Power supplies (Linear
and Switching), Desk Top power Supplies, PC mounted and Chassis mounted power transformers, Common mode chokes, Power Inductors,
Telecom and other Data Communication transformers as well as custom magnetic configurations.
Manufacturing
Capability
Cotra & seMag have the capability of manufacturing the following unit quantities per month
Semiconductors...Leaded
& SMD devices...25,000,000
Magnetics....Wall mount & PC mount….250,000/u/month
Magnetic modules
Surface mount magnetics…....100,000/u/month
