Technical Specifications High voltage and high current rating, gate drive signal interface. Operating junction temperature ‑40 ℃ to +125 ℃, storage temperature ‑40 ℃ to +125 ℃. Press‑pack disc mechanical structure.
Functional Features Performs high‑power switching action for power conversion main circuit. Responds to gate driving signal to complete turn‑on and turn‑off. Bears large current during continuous operation. Supports high‑power rectifier and inverter topological circuit operation.
Application Scenarios Core power spare part for ABB high‑power excitation system and large frequency converter. Applied in power plant and heavy‑industry power electronic equipment overhaul.
Performance Parameters Rapid switching characteristic. Excellent current‑carrying performance. Stable thermal cycling resistance under repeated operation.
Material Composition Metal press‑pack electrode housing. Semiconductor silicon chip. Gate signal lead terminal. High‑strength insulating assembly parts.
Structural Characteristics Disc‑shaped press‑pack power device. Main power electrodes on two end surfaces, gate signal terminal on side. Adopts stacking pressing installation mode. Weight approximately 1.4 kilogram.
Working Principle Positive gate signal triggers device conduction for main‑loop current flow. Reverse commutated gate signal forces device turn‑off to block main‑loop current. Repeated switching actions complete electric energy conversion of power equipment.
Installation Requirements Fully cut off system main power and finish high‑voltage capacitor discharge before replacement. Place 5SHY35L4520 into power stack, apply uniform specified compression force. Connect gate driving signal wiring correctly. Restore power supply, complete insulation test and equipment load running test.
Usage Notes Strictly implement electrostatic protection measures. Ensure stacking pressure conforms to technical requirement. Do not bend gate signal terminal. Inspect gate drive circuit status after component replacement.
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