DOUBLE-ELEMENT DIODE-THYRUISTOR POWER BLOCK
WITH RY HEATSINK
Characteristics:
• double-element diode-thyristor power module with double-sided cooling
in heatsink – RY;
• natural cooling.
Application:
• rectifiers, inverters, power supplies;
• DC power regulator;
• power contactors;
• soft-starts.
Options:
• standard version (photo 1);
• with bus bars;
• with black anodized heatsink;
• thermal protection;
• RC system;
• fuse;
• forced cooling.
Selection of power blocks:
Depending on the load of power block there are used different semiconductors.
Size of the applied semiconductor is specified in Table 1.
Working conditions:
Double-element power blocks are assigned to work in power electronic inverter systems:
• temperature of ambient air: -100C – +400C;
• atmospheric pressure: 860hPa – 1060hPa;
• relative humidity not higher than 80% for temperature 400C;
• cooling air without aggressive chemical agents
nor conductive dust.
Table 1. Technical parameters of power blocks
Type of module
Medium current
of
semiconductor IT(AV)
[A]
Reverse voltage
and blocking
voltage of
semiconductor
UDRM, URRM
[V]
Thyristor voltage UDRM, URRM/100
