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Diodes & Transistors(HKTDC Electronic Components & Parts, Vol 03,2005)

Hong Kong Electronic Components & Parts

Vol 3, 2005





Product Features

Diodes & Transistors
Miniature Marvels

Power Supplies
Essential Energy

Switches
Clever Controls

Diodes & Transistors

Miniature Marvels

Photo
LEDs from Optosupply Int'l Ltd come in different colours and shapes, including these oval and rectangular models
Today's extraordinary digital world wouldn't exist without diodes and transistors, the tiny devices at the heart of virtually every machine in the home or office. They may go unnoticed by millions of consumers worldwide, but high quality, competitively priced transistors and diodes are the lifeblood of Hong Kong manufacturers such as Weltronics Component Ltd.

Founded in 1984, Weltronics has 130 employees in Hong Kong, Macau and its offices in Shenzhen, Guangzhou, Shanghai, Chengdu, Xiamen and Beijing on the Chinese mainland. "We posted a turnover of US$35.7m in 2004," semiconductor division sales manager Davy Ho notes.

This success is founded on a customer base consisting of 400 active accounts, covering "virtually everything" in the electronics field, he adds. "Our clients make televisions, microwave ovens, air-conditioners, refrigerators, phones, VCRs and many other things," Ho explains.

These manufacturers rely on the 10 million small signal transistors and diodes and rectifiers that Weltronics produces every month for buyers worldwide. "We sell our products under the AUK and YS brand names in the US, Europe and the mainland," he reveals.

Ho says another factor in Weltronics' success is two warehouses in Hong Kong and Shenzhen that cover 3,000 square metres and are capable of handling orders of any size, though the company's minimum order is 3,000 units per reel delivered 4-6 weeks after order confirmation.

"We are well aware of the intense competition in this market and believe we have always responded in an innovative way," he says. "We now supply high-quality products to Japan, the US, Germany, Korea, the mainland and other places."

It is important, Ho believes, to have a good relationship with customers and partners and maintains Weltronics excels in this area. "We strive to meet the production timetables of our customers and ensure that they have a steady and reliable stream of the parts they need to stay ahead of their competition."

A newer company in the LED business is four-year-old OptoSupply Int'l Ltd, which operates a 5,000-square-metre, 200-worker factory in Longgang on the southern Chinese mainland.

The ISO 9001-certified plant specialises in LEDs, including high-power, SMDs and through-hole versions, says marketing manager Victor Cheung. "We make a full range of LEDs, including UV, white, IR and more," he explains, adding that Optosupply does both OEM and ODM work.

Cheung notes that Optosupply's in-house production lines are fully automated, and feature wire and die bonding machines, auto encapsulation, auto bin classification and tape and reel packaging imported from overseas. "We undertake all the production processes in Class 10K clean rooms with temperature, humidity and ESD control," he adds.

Optosupply produces 60 million units a month for markets worldwide, many of which bear its own Optosupply brand name. "We do not have a minimum order requirement and we will ship an order within seven days of confirmation," Cheung adds.

Much of Optosupply's success is due to its dedicated R&D team that creates new value for the company's customers. "Our R&D team focuses on three directions, namely materials, process and optics innovation," Cheung explains.

He says the company strives to improve LED performance by deploying non-imaging optics techniques, including ray tracing and LED light source optical modelling. "We also deploy the Japanese concept of 'gemba kaizen' or workplace improvement, as well as the Six Sigma methodology for eliminating defects," Cheung adds.

Another company committed to quality is Wing Shing Computer Components Co (HK) Ltd, which produces more than 20,000 different products including LCDs and LEDs.

"We have more than 20 years' experience and our consistent efforts have paid off," managing director Lin Kwok Hung claims. "We are known throughout the world and now have more than 60 global partners."

These include many high-profile companies. "We work with Motorola, Intel, Philips, Siemens, Texas Instruments, Toshiba, Hitachi and NEC, among others," he claims, adding, "We stock more than 20,000 items and our WS brand is well-respected everywhere."

All Wing Shing devices such as diodes, thyristors and transistors have been converted to a lead-free finish, which helps boost the company's sales in environmentally conscious markets. "We have a minimum order quantity of 10,000 units, which we deliver 1-2 weeks after confirmation of the order," Lin adds.

Proof positive that no one can beat Hong Kong when it comes to producing and delivering the high quality, competitively priced diodes and transistors that drive the world's electronic devices.

WRITTEN BY DANYLL WILLS

Contact Details

Fu Lik Electronic Devices Ltd
Rm 501, Blk A1, 17 Ko Fai Rd
Yau Tong Ind City, Yau Tong
Kowloon, Hong Kong
Tel: 852-2717-1428
Fax: 852-2347-0532
Email: fulik@netvigator.com
Web: www.fulikent.com

Optosupply Int'l Ltd
Unit 703, Kwong Sang Hong Centre
151-153 Hoi Bun Rd, Kwun Tong
Kowloon, Hong Kong
Tel: 852-2790-5099
Fax: 852-2342-9833
Email: sales-hk@optosupply.com
Web: www.optosupply.com

Silicon (HK) Ltd
Unit 1209, Metro Centre II
21 Lam Hing St, Kowloon Bay
Kowloon, Hong Kong
Tel: 852-2331-9328
Fax: 852-2796-5030
Email: kelvin@silicongroup.net
Web: www.silicongroup.net

Weltronics Component Ltd
Rms 1101-2, Tower 1
Cheung Sha Wan Plaza
833 Cheung Sha Wan Rd
Cheung Sha Wan, Kowloon
Hong Kong
Tel: 852-2410-0623
Fax: 852-2410-0920
Email: inquiry@weltronics.com
Web: www.weltronics.com

Wing Shing Computer Components Co (HK) Ltd
9/F, Blk E, Lladro Centre
72 Hoi Yuen Rd, Kwun Tong
Kowloon, Hong Kong
Tel: 852-2341-9276
Fax: 852-2797-8896
Email: ic@wingshing.com
Web: www.wingshing.com

Yetda Industry Ltd
Rms 1101-3
Pak Po Lee Commercial Centre
1A Sai Yeung Choi St, Mong Kok
Kowloon, Hong Kong
Tel: 852-2770-1488
Fax: 852-2385-7771
Email: mike888@netvigator.com
Web: www.yetda.com

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