Discrete Semiconductors

Topdiode Group and UF Capacitors is your reliable China Discrete Semiconductors manufacturer and China Discrete Semiconductors supplier. After 26 years development, Topdiode Group has become a very famous electronic parts manufacturer and electronic parts supplier. Now Topdiode Group and UF Capacitors include 4 manufacturer sites in China, and export our electronic components to USA, Canada, Brazil, Argentina, Mexico, South Africa, Tunisia, New Zealand, Australia, Germany, Italy, France, UK, Poland, Bulgaria, Spain, Portugal, Russia, Belarus, Ukraine, Korea, Vietnam, Singapore, Malaysia, Indonesia, India, Philippine, Thailand. Currently Topdiode and UF Capacitors supply our various discrete components to famous international companies like GE, Philips, Honeywell, Bosch and so on.

Topdiode is the brand of our various Discrete Semiconductors. We produce a wide range of Discrete Semiconductors such as transistor, schottky diode, rectifier diode, switching diode, zener diode, fast recovery diode, TVS diode, bridge rectifier and MOSFET. Our products are RoHS, Reach Compliant; Halogen free(on request) and Metal Conflict Free. 


Topdiode Group & UF Capacitors is an ISO9001:2015 manufacturer, founded in 1995, as one of the professional China Discrete Semiconductors manufacturer and China Discrete Semiconductors factory, we are strong in complete management, strict quality control system, and excellent sales service. Our factory keep regular stock for fast-moving parts. For other parts, our normal lead time is also fast to around 4-6 weeks. With fast delivery time, competitive prices, high quality commitment, customers can use our Discrete Semiconductors to replace Littelfuse, Bourns, Diodes, Microchip, STMicroelectronics, On Semi, Taiwan Semiconductor etc. Recent years, many components are in bad shortage, could you please send us emails and RFQ. We can help you to cost down and solve your shortage problem.

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  • MM1Z5231C thru MM1Z5262C Silicon Planar Zener Diode, are a special kind of semiconductor diode which permits current to flow in the forward direction. What makes them different from other diodes is that Zener diodes will also permits current to flow in the reverse direction when its "Zener voltage" is reached. They are used to generate low power stabilized supply rails from a higher voltage and to provide reference voltages for circuits, especially stabilized power supplies. They are also used to protect circuits from overvoltage, especially electrostatic discharge and providing great solutions to a number of common needs in circuit design. Welcome to buy MM1Z5231C thru MM1Z5261C Silicon Planar Zener Diode from us.

  • MM1Z5221B thru MM1Z5267B Silicon Planar Zener Diode is a special type of diode designed to reliably allow current to flow "backwards" when a certain set reverse voltage, known as the Zener voltage, is reached.

  • MM1Z4689 thru MM1Z4717 Silicon Planar Zener Diode is SMD Planar Zener Diodes, a power dissipation: max. 500 mW, Small plastic package SOD-123 suitable for surface mounted design,Tolerance approximately ± 5%.

  • MM1Z2V2B thru MM1Z39B Silicon Planar Zener Diode is a SMD Planar Zener Diodes, a power dissipation: max. 500 mW, Small plastic package SOD-123 suitable for surface mounted design(SMD),Tolerance approximately ± 5%.

  • MM1Z2V0 thru MM1Z75 Silicon Planar Zener Diode is a SMD Planar Zener Diodes, a power dissipation: max. 500 mW, Small plastic package SOD-123(BEND LEAD) suitable for surface mounted design,Tolerance approximately ± 5%.

  • MM1Z2B4 thru MM1ZB75 Silicon Planar Zener Diode, are a special kind of semiconductor diode which permits current to flow in the forward direction. What makes them different from other diodes is that Zener diodes will also permits current to flow in the reverse direction when its "Zener voltage" is reached.

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As a professional China Discrete Semiconductors manufacturers and suppliers in china called TOPDIODE. High quality Discrete Semiconductors are very popular in all countries.Our products not only have passed REACH and ROHS certification audit,but also have our own brand. In addition to providing free samples, we can also provide price lists and quotations. Our durable products support bulk,you can buy in stock and get low price. Welcome to buy made in china and advanced products from our factory.