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BrightKing Since 2001, BrightKing has been involved in the circuit protection industry, growing from a single-product supplier to a cutting-edge company that offers a full range of circuit protection components and solutions. BrightKing LTD is principally engaged in the manufacture, processing and sale of circuit protection components. The Company’s main products portfolio consists of transient voltage suppressor (TVS), metal oxide varistor (MOV), gas discharge tube (GDT), electro static discharge (ESD), positive thermal coefficient devices (PTC), spark gap protectors (SPG), as well as thyristor surge suppressors (TSS), among others. Its products are applied in the mobile communication, network equipment, electricity meters, light emitting diode (LED) lights and others.

BrightKing aims to meet your ever-changing demands. It has invested heavily in research and development, manufacturing facilities and engineering expertise to provide you with leading-edge circuit protection components and design and testing capabilities.

BrightKing’swell established global sales distribution helps it provide you with efficient technical support, solution consulting, fast and reliable sample delivery, prototype testing of our products and timely shipments. BrightKing sales distribution covers Asia, North and South America, Europe and Australia.

BrightKing products include MOV, TVS, GDT, SPG, PPTC, ESD,TSS. By combining these components delivers customized design that meets the safety requirements for many different applications.

BrightKing’s distinctive capabilities can provide a complete turnkey service for both small and large customers, from circuit design engineering to product testing and testing reports.

 BrightKing is dedicated to electronic circuit protection research and development of state-of–the-art components, we looks forward to being your trusted and reliable partner.



•  Voltage clamping device with fast response time

•  Transient surge power from 400W to 300,000W

•  Breakdown voltage from 5V to 600V

•  BrightKing can  designed and manufacture TVS products  to meet customer specifications.

BrightKing TVS :



Transient Voltage Suppressor(TVS) Diodes are a type of voltage suppressing device,also known as TVP or ABD.They can limit,or clamp,an over-voltage spike to within a safe range in pica-seconds to protect circuits from damage.

TVS diodes have a wide range of applications in such diverse fields as consumer products, vehicles, military;telecommunication, aerospace, intelligent control systems and electrostatic discharge protection.

BrightKing offers a range of low-capacitance TVS products: SMAJ,SMBJ,SMCJ,SMDJ,P4KE,SA,P6KE,1.5KE, 3KP,5KP,15KPA,20KPA,30KPA and HyperFix

BrightKing TVS products are RoHS WEEE-compliant and meet the following standards and certifications: UL,IEC61000-4-2 and IEC 61643-321:2001.


 • Higher surge capability

• Voltage range from 18V to 1800V

• Surge current up to 70KA


BrightKing MOVs

Metal oxide varistors (MOVs) use zinc oxide that has been heat-treated and formed into a disc. The zinc oxide disc acts as a non-linear resistor, clamping the voltage at a given level.

Most applications for MOV’s are in power transmission lines and circuits that are controlled by low frequency signals.

BrightKing provides a full range of MOVs,with breakdown voltages from 18V to 1800V and surge currents of up to 70KA or more.The company offers round varistors with diameter sizes (measured in millimeter) of:

Φ5,Φ7,Φ10,Φ14,Φ20,Φ25,Φ32,Φ40 and Φ53. 

A square model with 34mm sides is available and custom-made sizes are also possible.

BrightKing MOV products are RoHS WEEE-compliant and meet the following standards and certifications: UL,VDE and CSA. BrightKing MOV products may be incorporated into SPDs that are certified to standard ICE 61643-331-2003.





• Fast response time, low capacitance;

• Small package size;

• Integrate multiple protection lines into one package.

 ESD introduction:ElectroStatic Discharge (ESD) components protect against the discharge of electrostatic energy using an array of miniature Transient Voltage Suppressors.ESD surges are typically small,so the protection devices consume little power,allowing them to be made very small.Operating at less than 5V,they have small bodies with high levels of integration,leading to many protection lines in one package with low capacitance and fast response times.BrightKing offers the devices in the following packages:SOD923,SOD523,SOD323,SOT23,SOT-23-6L,SOIC-08&SOIC-16.The nature of the devices provides a great deal of flexibility,allowing for a range of configuration options.

Applications for ESD’s include:USB,Ethernet,12C Bus,T1/E1’s,WAN/LAN equipment,ISDN S/T interface,AV,PDA,mobile telephones,RS232,GPS units,LCD screens,switches,ADSL,SIM cards,IEEE1394,DVI, HDMI,MP4 players,storage devices,printers&scanners,etc.

BrightKing ESD products are RoHS WEEE compliant and meet the following standards and certifications:GB/T17626.2,IEC61000-4-2,IEC61000-4-4,IEC61000-4-5,MIL-STD-883C method 3015.7,EIAJ-

IC-121 method 20.


• Low capacitance;
• Very high surge current capability;
• Isolation: impedance very high and can be kept isolated. Up to

1000Mega Ohms;
• Used in parallel with device;Voltage from 70V to 3000V;
• Surge current up to several hundred thousand Amps;
• Capacitance lower than 1pF.

GDT introduction:Gas discharge tubes (GDT) use noble gasses

enclosed in ceramic tubes to provide an alternate circuit path

for voltage spikes.The ceramic envelope and with nickel

connectors allow for high loads and BrightKing offers products

that function at 20KA,40KA,50KA,60KA,100KA &150KA.The breakdown

voltages of the devices have a wide range (up to 20% tolerance).

Major applications are high frequency telecommunication lines,

stations, security systems,HID and high quality Surge Protection

Devices (SPD).

BrightKing offers the following types:2 port;5,7& 8 mm.3

port;6,7&8 mm.The company also offers surface mounted device

(SMD) used in portable digital products.

BrightKing GTD products are RoHS WEEE compliant and meet the

following standards and certifications:UL;VDE;IEC 61000-4-5;IEC

61643-311:2001/GB9043;ITU-T K.21;GR1089.


 • Full range available;

• Voltage from 6V to 600V;

• Protection current from milliamps to amps.

 PTC introduction:Positive Thermal Coefficient devices(PTC),also known as ‘re-settable fuses’,provide over-current protection for electrical and electronic devices.They function using conducting strips of metal imbedded inside polymers.Under normal conditions,the devices’ resistance is near zero,but over-current conditions will heat the PTC and expand the polymer,increasing the impedance.When current returns to normal,the components cool down,returning to their original shape and very low levels of resistance.

Applications of PTC devices include:vehicle motor control,electric windows,windscreen wipers,electric seat controls,music players,electronic toys,radio-controlled cars,lithium battery chargers&consumer telecommunications equipment.

BrightKing offers a range of PTC components in the following packages:BK06,BK16,BK30,BK60,BK90,BK130,

BK250& BK600.

BrightKing PTC products are RoHS WEEE compliant and meet the following standards and certifications:UL 1950; FCC 68;ITU-T. 


• Breakdown voltage from 100V to several thousand Volts;

• Surge current from 100A to 3000A;

• Capacitance can be lower than 1pF.

SPG introduction:SPark Gap Protectors (SPG) use glass tubes to envelope and contain a chip,which increases the devices’ response times to around 1ns.This type of device is typically cheaper,smaller and faster than gas discharge tubes (GDT) and is between semiconductor over-voltage protectors and GDT’s in the levels of protection it affords.SPG typically have high isolation and can be used in parallel,similar to GDT devices.

Applications for BrightKing’s range of SPG products include high frequency telecommunication circuits and power isolation circuits.

BrightKing SPG products are RoHS WEEE compliant and meet the following standards and certifications:UL 1449;UL 497A;UL 497B.


 • Accurate over-voltage clamping with fast response times;

• Low capacitance with bi-directional capabilities

TSS introduction:Thyristor Surge Suppressors (TSS) are one kind of semi-conductor surge absorbers.

The feature:

• Precise control over break-down voltages (VBR),offering superior tolerance levels compared to other solutions;

• Strong surge capability;

• Fast response times;

• Low capacitance;

• Bi-directional capabilities.

BrightKing offers TSS devices in the following packaging:SMA,SMB,TO-92.TSS devices may be used repeatedly with minimal degradation.

Applications for TSS components include:modems,line cards,CPE (telephones,answering machines,fax Machines),SLICs,T-1/E-1,xDSL,PBXs etc.

BrightKing TSS products are RoHS WEEE compliant and meet the following standards and certifications:GB/T18802.341,IEC61643-341:2001,GR1089,ITU K.20,ITU K.21 & K.45,IEC 60950,UL60950,

TIA-968(FCC Part 68),EN60950.