Description

• Applications: Welding diodes are mostly used in contact welding machines. Operation in welding machines is characterized by short impulses of current causing the semiconductor structure to heat and then cool down, as a result of limitations of welding machine duty cycle (modes “operation – cooling”). As a result, the semiconductor is exposed to frequent cyclical thermal and mechanical stress. All this imposes harsh requirements to static and dynamic properties of the devices.
• VRRM [V min]: 200
• VRRM [V max]: 400
• IFAV [A]: 7100
• Tс: 90
• VFM (Tc=25°С) [V]: 1.05
• IFM (Tc=25°С) [A]: 5000
• VF(TO)/Tjmax [V]: 0.750
• rT/Tjmax [mΩ]: 0.029
• Tjmax [°С]: 170
• Rthjc [°С/W]: 0.0090
• Design: disc
• Type: welding
• Description: D053-7100 is a welding diode in disc design. It has a repetitive peak reverse voltage VRRM of 200-400 V and low static losses. Mean forward current IFAV equals 7402 A. Industry standard design enables easy installation into existing equipment. Maximal junction temperature Tjmax is 150 °C. Diameter of the contact surface is 44.4 mm.