Fast Switching Thyristor - Unitshine Semiconductor

unitshine-thyristor-fast-switching

Fast Switching Thyristor is a thyristor which can operate at frequencies above 400 Hz. Depending on the size of the current volume, the opening time is of 4 to 8 microseconds and turn-off time of 10 to 60 microseconds. It is mainly used for such circuits as higher frequency rectifier, chopping, inverter and inverter.

Fast Switching Thyristor is a PNPN four-layer & three-terminal device, its symbol is same as ordinary thyristor (see reverse resistance thyristor). It requires not only good static characteristics but also good dynamic characteristics in particular.

Features

Our fast switching thyristors possess the following features:

Leading complete diffusion technology.
Flat type metal-ceramic packages with pressure contacts.
Fast switching capability, lower switching loss.
Distributed amplifying gates.
Fine dynamic characteristics.

Application & Specification

Application

Our fast switching thyristors are widely used in the following fields:

Inverter.
Chopper.
Inductive heating.
Various types of forced converter.

Specification

Type	I_T（AV） @T_C		V_DRM V_RRM	I_DRM I_RRM	V_TM @I_TM		I_GT	V_GT	dv/dt	di/dt	tq	I_TSM	I²t	V_TO	r_T	R_thjc	R_thch	T_JM	Fig.
				125°C	25°C				125°C			10ms		125°C
	A	℃	V	mA	V	A	mA	V	V/μS	A/μS	μS	KA	kA²s	V	mΩ	℃/W	℃/W	℃
TB123-200	200	55	800-1200	20	2.4	600	250	2.5	1000	200	10--25	4	80	1.6	1.22	0.08	0.02	125	T07
TB123-200	200	55	1200-1600	20	2.6	600	250	2.5	1000	200	15--35	3.8	72	1.6	1.22	0.08	0.02	125	T07
TB133-320	320	55	800-1200	30	2.25	600	250	2.5	1000	200	10--25	5	125	1.5	1.05	0.065	0.02	125	T08
TB133-320	320	55	1200-1600	30	2.4	600	250	2.5	1000	200	15--35	4.5	100	1.6	1.11	0.065	0.02	125	T08
TB433-400	400	55	800-1200	30	2.4	1500	250	2.5	1000	200	10--25	7	245	1.25	0.66	0.042	0.002	125	T09
TB433-400	400	55	1200-1600	30	2.6	1500	250	2.5	1000	200	15--35	6	180	1.45	0.72	0.042	0.02	125	T09
TB543-500	500	55	800-1200	50	2.25	1500	250	2.5	1000	200	10--25	9	405	1.26	0.52	0.042	0.02	125	T10
TB543-500	500	55	1200-1600	50	2.5	1500	250	2.5	1000	200	15--35	8	320	1.45	0.58	0.042	0.02	125	T10
TB143-800	800	55	800-1200	50	2.1	1500	250	2.5	1000	200	10--25	12	720	1.26	0.5	0.042	0.02	125	T11
TB143-800	800	55	1200-1600	50	2.4	1500	250	2.5	1000	200	15--35	10	500	1.42	0.52	0.042	0.02	125	T11
TB753-1000	1000	55	800-1200	70	2	1500	250	2.5	1000	200	10--25	14	980	1.26	0.45	0.042	0.008	125	T12
TB753-1000	1000	55	1200-1600	70	2.25	1500	250	2.5	1000	200	15--35	12	720	1.45	0.48	0.042	0.008	125	T12
TB153-1250	1250	55	800-1200	50	1.9	1500	300	3	1000	200	10--25	16	1280	1.22	0.33	0.042	0.008	125	T13
TB153-1250	1250	55	1200-1600	70	2.15	1500	300	3	1000	200	15--35	15	980	1.45	0.34	0.042	0.008	125	T13
TB153-1000	1000	55	2000-2500	70	2.6	1500	320	3.5	1000	200	30--60	12	720	1.5	0.38	0.042	0.008	125	T13
TB153-1000	1000	55	2600-3000	70	3	1500	320	3.5	1000	200	40--80	11	605	1.56	0.38	0.042	0.008	125	T13
TB353-1500	1500	55	800-1200	50	2.35	3000	250	3	1000	320	10--25	18.5	1712	1.2	0.285	0.042	0.008	125	T14
TB353-1500	1500	55	1200-1600	50	2.65	3000	250	3	1000	320	15--35	17	1445	1.45	0.3	0.042	0.008	125	T14
TB353-1250	1250	55	2000-2500	70	2.8	3000	320	3.5	1000	320	30--60	15	1125	1.5	0.33	0.042	0.008	125	T14
TB763-1800	1800	55	1200-1800	50	2.6	3000	250	3	1000	320	25-50	21	2205	1.5	0.32	0.042	0.008	125	T14
TB163-2000	2000	55	1200-1600	50	2.4	3000	250	3	1000	320	25--50	22	2420	1.45	0.22	0.042	0.008	125	T15
TB163-1800	1800	55	2000-2500	70	2.65	3000	320	3.5	1000	320	30--60	20	2000	1.5	0.23	0.042	0.008	125	T15
TB163-1800	1800	55	2600-3000	70	2.9	3000	320	3.5	1500	320	40--80	19	1805	1.56	0.25	0.042	0.008	125	T15
TB773-2300	2300	55	1200-1600	50	2.25	6000	250	3	1500	320	25--50	30	4500	1.2	0.14	0.042	0.008	125	T15
TB173-2700	2700	55	1200-1600	70	2.25	6000	250	3	1500	320	25--50	30	4500	1.2	0.14	0.042	0.008	125	T16
TB173-2500	2500	55	2000-2500	100	2.65	6000	320	3.5	1500	320	30--60	26	3380	1.45	0.16	0.042	0.008	125	T16
TB173-2500	2500	55	2600-3000	100	2.85	6000	320	3.5	1500	320	50--100	24	2880	1.56	0.17	0.042	0.008	125	T16
TB183-3000	3000	55	2400-3000	100	2.75	6000	320	3.5	1500	320	50--100	33	5445	1.4	0.14	0.042	0.008	125	T17
TB193-4000	4000	55	2400-3000	100	2.6	6000	320	3.5	1500	320	50--100	42	8820	1.2	0.09	0.042	0.008	125	T18

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.

Fast Switching Thyristor (Flat Type)

Application