Rectifier Water Cooling Module - Unitshine Semiconductor

unitshine-rectifier-water-cooling-module-00201

Rectifier Water Cooling Module is the derivative of the thyristor module also known as the SCR rectifier. The thyristor is structurally a PNPN four-layer semiconductor,with three poles: Anode, Cathode and Gate. Thyristor shall work when positive voltage is exerted and gate pole has a trigger current. Its derivative devices are fast thyristor, two-way thyristor, reverse thyristor and light control thyristor etc, and marked in the circuit with the text symbol "V" or "VT" (or "SCR" in old standard).

The water cooling module is composed of several rectifiers, thus having the characteristics of silicon rectifier device, able to work in high voltage, high current conditions, and its work process can be controlled, which is widely used in controllable rectifier, AC voltage regulator, contactless electronic switches and inverters.

Features

Our rectifier water cooling modules possess the following features:

Electric insulation is realized between Power Terminals and Metal Base Plate.
Fine temperature property and power circulation ability.
Low voltage drop for on-state.
Simple installation and easy maintenance.

Application & Specification

Application

Rectifier Water Cooling Modules are widely used in the following fields:

Various rectifier power supply.
UPS power supply.
Industry temperature control.

Specification

Type	I_F（AV） @T_C		V_RRM	I_RRM	V_FM @I_FM		I_FSM	I²t	V_FO	r_F	R_thjc	V_ISOL	T_JM	Fig.
	I_F（AV） @T_C		150℃		25℃		10ms		150℃
	A	℃	V	mA	V	A	KA	KA²S	V	mΩ	℃/W	V	℃
MDC380W	380	70	800-1800	20	1.35	1000	10	500	0.75	0.52	0.16	2500	150	M04A
MDC500W	500	70	800-1800	30	1.35	1500	12.5	780	0.75	0.38	0.11	2500	150	M04A
MDC800W	800	70	800-1800	40	1.32	2500	14	980	0.75	0.29	0.075	2500	150	M07A
MDC1000W	1000	70	800-1800	40	1.32	3000	24	2880	0.75	0.135	0.06	2500	150	M08A
MDC1250W	1250	70	800-1800	40	1.30	3000	32	5120	0.75	0.11	0.055	2500	150	M09A
MDC1500W	1500	70	800-1800	50	1.30	3000	41	8400	0.72	0.095	0.055	2500	150	M10A

Installation Precautions

The modules should be installed and commissioned by an operator with relevant electric, electronic and electrical qualification:

Considering the fluctuation of the grid voltage, the current of load is generally several times larger than its rated current at the start while the thyristor chip is less resistant to current shock, it is recommended that you set the appropriate margin when selecting electric current specifications of the modules.
Module chip's working temperature: -40 ℃ ∽ 125 ℃ for SCR; ambient temperature shall not be higher than 40 ℃; environmental humidity shall be less than 86%.
The environment should be no severe vibration and shock where there should be no metal with corrosion and impurities & air that damagesg the insulation.
For thyristor module ise insulated type (meaning insulation resistance between the module terminals and the copper bottom plate is greater than 2.5KV), multiple modules can be mounted on the same heat sink, with earthing wire.
The installation surface of a radiator should be evenly flat, smooth and without scratches, bumps and debris, and surface finish of the radiator should be less than 10μm.
When power modules are mounted on the radiator, a thin layer of thermal grease should be applied between the contact surfaces. Before grease applying, please remove the oxide layer of the radiator contact surface with fine sandpaper, then wipe the surface with absolute ethanol, so that the contact is good enough to reduce the thermal resistance.
When a module is fastened to the surface of the radiator, please use M5 or M6 screws and spring washers then tighten the screws with 4NM torque.
The connection with main electrodes of the modules should be copper busbars with a smooth surface and good contact. After the modules have been in operation for 3 hours, the screws must be tightened again.

Our team is in dedicate and professional position to provide above information for our customers and related operators to properly deal with what we supply to all over the world. You are welcome to contact us to get such information or data, and please address This email address is being protected from spambots. You need JavaScript enabled to view it.