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SAMYANG — Korean diode manufacturer founded in 1988: rectifier, Zener, bridge, TVS

Admin · 2026.10.26

SAMYANG
A Korean diode manufacturer in Guro-gu, Seoul, founded in 1988, that tests, marks and tapes diodes for supply.
KoreaFounded 1988ISO 9002 (1999)Diode manufacturing · sales
1988
Founded (as Samyang Precision)
1999
ISO 9002 certified
19
Product categories
3,241
Part numbers on eGuro

At a glance

Company nameSamyang Electronics (SAMYANG)
HeadquartersGuro-gu, Seoul (Jungang Circulation Complex)
FoundedSeptember 1, 1988 (founded as 'Samyang Precision')
CEOHwang Soon-hwan
Main businessElectron tubes, diodes · transistors and electronic components
CertificationsISO 9002 (June 1999)
ProcessesTest/marking, IR taping · packing, lead forming
Websitehttp://www.diode.co.kr

About the company

Samyang Electronics is a Korean diode manufacturing and sales company founded in September 1988 under the name 'Samyang Precision'. According to its company profile, it was built on the experience of its founder, who worked 20 years at FAIRCHILD Korea and served as plant manager at Dongsung Semiconductor; its headquarters are in Guro-gu, Seoul.

Samyang Electronics inspects the electrical characteristics of diodes and marks them in its test/marking process, dries them in an oven, then inspects them once more in the IR/packing process before winding them onto tape and packing them. The company explains that this process screens out characteristic defects that can occur in diodes imported directly from abroad. It also does Zener diode taping and diode lead forming (ㄷ-shape · M-shape · U-shape).

Its products are divided into 19 categories, from silicon, fast, high-efficiency and Schottky rectifier diodes, switching and Zener diodes, bridge diodes, and TVS · ESD protection devices to transistors, MOSFETs and SiC diodes.

History

1988
Founded as 'Samyang Precision'
1997
OEM production agreement with SINBLE (China), test and packing equipment introduced
1999
ISO 9002 certified
2003
Bridge diode OEM production agreement with HY Electronics (China)
2004
Lead-free (Pb-free) process completed

Main products

Rectifier diode symbol
Rectifier diodes
Silicon rectifier, fast recovery (FRR) · high-efficiency (HER) · ultrafast · superfast rectifier, Schottky barrier rectifier, high-voltage rectifier diodes
Small-signal · Zener diode symbol
Small-signal · Zener diodes
Switching diodes, small-signal Schottky, germanium diodes, Zener diodes
Bridge diode symbol
Bridge diodes
Bridge rectifier diodes that convert AC to DC
Protection device symbol
Protection devices
TVS (transient voltage suppression), ESD protection devices, varistors, DIACs
Transistor · MOSFET · SiC symbol
Transistors · MOSFETs · SiC
Transistors, MOSFETs, SiC diodes

Processes · services

Diode test/markingIR taping · packingZener diode tapingLead forming (ㄷ · M · U shapes)Bulk work

SAMYANG resources on eGuro

· SAMYANG diode datasheets — 3,241 part numbers in 19 categories
https://eguro.kr/en/board/view.html?b=library&id=47

eGuro distributors

Companies that carry SAMYANG products. Click a company name to see its contacts and stock.

Source: Samyang Electronics website company profile · history · technology · business · services · product list (http://www.diode.co.kr, checked 2026-10-26). Each logo is a trademark of its respective company.

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