ABB 5SHY 3545L0009 4500 V / 3500 A Asymmetric IGCT – High-Power Semiconductor Spare for ABB Converter and Drive Systems

Product Overview

The ABB 5SHY 3545L0009​ is a legacy-ordering-code IGCT module​ (Integrated Gate-Commutated Thyristor) supplied by ABB and now supported under the Hitachi Energy semiconductor portfolio. It belongs to the ABB 5SHY​ family of high-power press-pack semiconductors and is consistently identified in spare-parts and service records as an asymmetric IGCT​ with a 4.5 kV repetitive off-state blocking class and a 3500 A average on-state current class, associated with the legacy material/order number 3BHB013085R0001. The ABB 5SHY 3545L0009​ is not a conventional baseplate IGBT module: it is a round, hermetically sealed disc that is clamped under calibrated pressure between two heat sinks, which simultaneously serve as the electrical contacts and as the cooling surfaces. This construction is fundamental to its capability in multi-megawatt converter power stacks, where device current, switching losses, and thermal cycling are far beyond the practical envelope of solder-attached module packages.

At the heart of the ABB 5SHY 3545L0009​ is the IGCT’s defining architecture: the gate turn-on and turn-off control unit is an integral element of the component. Unlike a conventional thyristor that can only be turned on, the IGCT is forcibly commutated off by a gate drive that removes the entire cathode current through the gate in a few hundred nanoseconds, producing a hard, fast, and controllable turn-off event. The external interface is deliberately simple—an optical-fiber command path plus a modest control supply—while the demanding timing, overcurrent detection, and gate-current delivery are handled inside the matched gate assembly. This is why the ABB 5SHY 3545L0009​ must always be evaluated as a semiconductor-and-gate-system pair, not as a disc in isolation.

The positioning of the ABB 5SHY 3545L0009​ is that of a critical power-switch spare for ABB medium-voltage drives, industrial converters, and high-power rectifier/inverter stages. It is the kind of component specified for phase legs and multilevel converter cells where several devices are series-connected to reach the required DC-link voltage. Buyers typically encounter the ABB 5SHY 3545L0009​ during an outage, a failed-device replacement, or the build-out of a critical-spare inventory. Its value is therefore measured not only in voltage and current, but in traceability, nameplate integrity, gate-unit compatibility, and the confidence that the supplied device matches the converter bill of material.

Technical Specifications