RoHS Approved Schottky Diode Guard Ring For Overvoltage Protection

Guard Ring For Overvoltage Protection Schottky Diode With RoHS​

Advantage

SBD has the advantages of high switching frequency and low forward voltage, but its reverse breakdown voltage is relatively low, mostly not higher than 60V, and the highest is only about 100V, which limits its application range. Such as freewheeling diodes of power switching devices in switching power supply (SMPS) and power factor correction (PFC) circuits, high-frequency rectifier diodes above 100V for transformer secondary, high-speed diodes of 600V~1.2kV in RCD snubber circuits, and For 600V diodes used in PFC step-up, only fast recovery epitaxial diodes (FRED) and ultra-fast recovery diodes (UFRD) are used. The reverse recovery time Trr of UFRD is also more than 20ns, which cannot meet the needs of 1MHz~3MHz SMPS in fields such as space stations. Even for an SMPS with hard switching at 100kHz, due to the large conduction loss and switching loss of UFRD, the case temperature is high, and a large heat sink is required, which increases the size and weight of the SMPS, which does not meet the miniaturization and thinning requirements. development trend. Therefore, the development of high-voltage SBDs above 100V has always been a research topic and a focus of attention. In recent years, SBD has made breakthrough progress, 150V and 200V high-voltage SBDs have been listed, and the SBD of more than 1kV made of new materials has also been successfully developed, thus injecting new vitality and vitality into its application.

Uchi was established in 2006 in Dongguan, China.

After years of development, Uchi has become a large scale hi-tech enterprise that specialized in development and production of complete series of MOV,PTC, NTC series, PPTC series, Fuse(ALL TYPE),Resistor、integrated circuit 、 Capacitor, surge protector and protective devices of lightning protection products. It ranks front in the industry and has heartquarter in Hong Kong. With its excellent technology and quality products, Uchi has won wide recognition of overseas customers. Saini Impex PVT.LTD is our authorized sole distributor in india .

China's leading enterprise of circuit protection components​

Our strength ：

A large number of product series in our factory have passed the certification of various international standards




Factory Tour​ ：

Advanced equipment, lean production

Uchi boasts with a production base that covers an area of nearly 15000 square meters.

We successively imported high-tech fully automated production equipments and high precision testing instruments and have put into production to realize the automation, large scale and standardization.

Uchi has a galaxy of hi-tech talent teams headed up by national class experts to engage in the work of product development, product quality control, sales andservice technical support, etc., and has successively obtained tens of certificates of appearance patents, utility patents and inventions.

To guarantee the quality, we successfully passed the certification of ISO9001:2008 quality management system, scientific and efficient managing mode to carry out lean production and form scientific and efficient quality control system. The products are certified with UL, CUL, TUV, VDE, CSA and SGS, RACH 73 environmentally friendly testing certifications.

Exquisite quality at customers' favor

Uchi is an export membership of Alibaba with free import and export rights. It is appraised as Guangdong Famous Star Enterprise and Dongguan Private Enterprise. Our products have doubled and redoubled to provide more kinds and high quality and reliable products and service. Our products mainly consist of:

Metal Oxide Varistor
DIP Varistor & SMD Varistor
Thermally Protected Varistor

DC-Link Capacitor for New energy vehicles supporting the HEVEV

Automotive Fuse Links for EV Plugin HEV FCEV
PTC Thermistor

NTC Thermistor

PPTC Resettable Fuse

Thermal Fuse

Auto Blade Fuse

Glass Fuses

Metal Film Resistor

Carbon Film Resistor

Cement Resistor

NTC Temperature Sensor

CDS Photoconductive Cell

Our products are widely used in New energy vehicles, home appliance, medical equipment, office equipment, communication equipment, phone battery, electronic calendar, electronic thermometer and temperature controller to cover military telecommunications, IT, automobile and consumer electronic fields.
Cooperation with good faiths to win in the market.
Excellent quality sincere service is the key to the success of Uchi.

In the future Uchi will still stick to the tenets of "Quality first, customer foremost." "First class quality, first class service and customersatisfaction" to manufacture the high quality, technically advanced and reasonable prices products. We hope to trigger with global partners the revolution in resistor products. We cordially welcome friends from home and abroad to visit us for guidance and cooperation.