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Rectifier Diode 1000A, type D343-1000 (3400V – 4400V)
| Average forward current, IFAV | 1000A |
| Voltage, VRRM | 3400–4400V |
| Voltage code, VRRM / 100 | 34 – 44 |
| D343-1000 | on request |
| Package Dimensions ØDרd×H |
PD42 60x37x20 mm |
| Weight | 240 g |
| Datasheet |
Rectifier Diode D343-1000 JY FACTORY is general purpose disc diode. This is a power p-n junction diode designed for converting DC and AC currents up to 1000A with frequency up to 500Hz in circuits with voltages up to 3400V – 4400V (voltage class from 34 to 44).
Diode dimensions ØDxØdxH – 60x37x20 mm (outer case diameter X contact surface diameter X case height), weight – 240 g. The anode and cathode of the diode (polarity) are determined by the symbol on the case. Diodes are in a industry-standard ceramic press pack disc (capsule, tablet) housing. This rectifier diode can be an alternative product, replacement, analog, equivalent for other types diodes 850A, 900A, 950A, 990A, 1000 amp in a disk type package. For cooling during the operation of power semiconductor diodes they are mounted with coolers (heat sinks).
Depending on the amount of heat generated and the working conditions of the semiconductors, either natural air flow cooling or forced cooling can be used. When assembling, the necessary clamping force Fm specific for each type of diode case (indicated in the parameter table) must be provided. Semiconductor diodes disc type are used in power equipment – power and control units, power regulators, converters (e.g. melting furnaces), controllers where fast switching and control of currents is necessary.
Specifications and parameters, datasheets PDF, sample technical passport, dimensions, outline drawings, case diagrams diodes, recommended coolers are listed below.
Our company provides a quality guarantee for power rectifier diode of 2 years from the date of purchase. When supplying diodes, if necessary,
we provide technical passport, certificate of conformity. Diode ratings: D343-1000-34 (1000A 3400V), D343-1000-36 (1000A 3600V), D343-1000-38 (1000A 3800V), D343-1000-40 (1000A 4000V), D343-1000-42 (1000A 4200V), D343-1000-44 (1000A 4400V).
The final price for rectifier disc diodes depends on the voltage class, quantity, delivery terms, manufacturer, country of origin and form of payment.
For questions regarding the acquisition of Modules, SCR Thyristors, Diodes send an email request to:
And we will provide you a commercial offer for delivery. For a large number, we will provide an individual price!!!
We are open to manufacture products at our production facilities according to your requests and technical task.
Quality Warranty
Each product is tested for the main parameters, and Test reports of the parameters for each product are provided.
Geography of partnership
Thyristor factory company manufactures and supplies power semiconductors to more than 50 countries around the world.
Logistics and Delivery
We deliver our products all over the world with the services of logistics companies: DHL, TNT, UPS, EMS, Fedex, Aramex. Products can be delivered by any means of transport: air, sea, rail and road.
JY FACTORY Semiconductors Manufacturing
Our products range includes rectifier diodes, phase control thyristors in disc and stud design, avalanche diodes and thyristors, fast switching, high frequency thyristors, fast recovery, welding and rotor diodes, triacs, bridge rectifiers, power modules (thyristor, diode, thyristor-diode, IGBT), and air and water heatsinks to them.
Power diodes and thyristors are produced for currents from 10A to 15000A, voltage range from 100V to 9000V. Power diode and thyristor modules are produced from 25A and up to 1250A, voltage range 400V – 4400V. The range of power semiconductors also includes equivalent, replacement, analogue and alternative semiconductor devices of global manufacturers.



