Make Your Industrial Purchase Cheaper, Faster, Easier, and Better.
伊伊西科技（北京）有限公司
EEC TECHNOLOGY (BEIJING) CORP., LTD
Hot Line
+86 134 6671 4221
News Detail
N
新闻分类
ews
What are the main parameters of thyristors?
The main electrical parameters of thyristor are forward turning voltage VBO, forward average leakage current IFL, reverse leakage current IRL, off-state repetitive peak voltage VDRM, reverse repetitive peak voltage VRRM, forward average voltage drop VF, on-state average current IT, gate trigger voltage VG, gate trigger current IG, gate reverse voltage and maintenance current IH.
(1) Thyristor Forward Turning Voltage VBO
The forward turning voltage VBO of thyristor refers to the peak voltage when the rated junction temperature is 100 C and the gate (G) is open, and the sinusoidal half-wave forward voltage is added between the anode (A) and the cathode (K) to make it change from off state to on state.
(2) Repetitive peak voltage VDRM of thyristor in break state
Break-state repetitive peak voltage VDRM refers to the maximum peak voltage allowed between A, K (or T1, T2) poles when thyristors are blocked forward. This voltage is about the value of the forward turning voltage minus 100V.
(3) On-state average current IT of thyristor
On-state average current IT refers to the average current allowed between A, K (or T1, T2) poles in normal operation of thyristors under specified ambient temperature and standard heat dissipation conditions. (4) Reverse Breakdown Voltage VBR
Reverse breakdown voltage refers to the peak voltage applied between the anode and cathode of thyristor at rated junction temperature when the reverse leakage current increases sharply.
(4) Reverse Repetitive Peak Voltage VRRM of Thyristor
Reverse repetitive peak voltage VRRM refers to the maximum reverse peak voltage that thyristors allow to be added between A and K poles when the gate G is open. This voltage is about the peak voltage after subtracting 100V from the reverse breakdown voltage.
(5) Forward average voltage drop VF of thyristors
Forward average voltage drop VF, also known as on-state average voltage or on-state voltage drop VT, refers to the average voltage drop between anode A and cathode K, usually 0.4-1.2V, when the current through thyristor is rated current under specified ambient temperature and standard heat dissipation conditions.
(6) Thyristor gate trigger voltage VGT
Gate triggered VGT refers to the minimum gate DC voltage required to change the thyristor from blocking state to conducting state at a specified ambient temperature and a positive voltage between the thyristor anode and cathode, generally about 1.5V.
(7) Thyristor gate trigger current IGT
Gate trigger current IGT refers to the minimum gate direct current needed to change thyristor from blocking state to conducting state under the condition of specified ambient temperature and a certain voltage between the anode and cathode of thyristor.
(8) thyristor gate reverse voltage
Gate reverse voltage refers to the rated voltage on the gate of thyristor, which generally does not exceed 10V.
(9) Thyristor Maintenance Current IH
Maintenance current IH is the minimum current to maintain thyristor conduction. When the forward current is less than IH, the on-going thyristor will turn off automatically.
(10) Repetitive peak current IDR of thyristor in break state
The break-state repetitive peak current IDR refers to the maximum forward average leakage current value of thyristor under the break-state, which is generally less than 100 mu A.
(11) Official Website of IRRM EECTECH Company for Thyristor Reverse Repetitive Peak Current