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$107.00
| Voltage | WPC | AH/kVA | Length | Width | Height | Weight |
|---|---|---|---|---|---|---|
| 450 V | N/A | 600 A | N/A | N/A | N/A | 600 – 800 g |
| Voltage | 450 V |
| WPC | N/A |
| Amp/H | 600 A |
| Length | N/A |
| Width | N/A |
| Height | N/A |
| Weight | 600 – 800 g |
The Powerex KS624530 is a high-current bipolar Darlington power transistor module designed for industrial power-conversion and switching applications. The module combines a single 300 A Darlington transistor, reverse-parallel high-speed feedback diode, and base-emitter speed-up diode in an electrically isolated power package.
Unlike an IGBT module, the KS624530 is a bipolar Darlington transistor and is controlled by base current rather than an insulated MOS gate. Its high DC current gain reduces the base-drive current required for a 300 A power stage, while the integrated speed-up diode helps improve switching performance. This architecture was widely used in legacy industrial inverters, UPS systems, DC and AC motor controls, switching power supplies, and other high-current power-electronics equipment.
The isolated baseplate allows the module to be mounted directly to a properly prepared heatsink while maintaining electrical isolation between the power semiconductor circuit and chassis. For service of legacy equipment originally designed around high-current Darlington modules, the KS624530 can provide an important repair option where newer semiconductor technologies are not electrically or mechanically interchangeable.
| Parameter | Value |
| Manufacturer | Powerex |
| Part Number | KS624530 |
| Device Type | Single bipolar Darlington power transistor module with reverse-parallel diode and base-emitter speed-up diode |
| Collector-Emitter Sustaining Voltage (VCEO(sus)) | 450 V |
| Collector-Emitter Sustaining Voltage (VCEEV(sus)) | 600 V with VBE=−2 V |
| Collector-Base Voltage (VCBO) | 600 V |
| Emitter-Base Voltage (VEBO) | 7 V |
| Continuous Collector Current (IC) | 300 A |
| Continuous Base Current (IB) | 18 A |
| Diode Forward Current (IFM) | 300 A |
| Diode Surge Forward Current (IFSM) | 3000 A |
| Power Dissipation (Pt) | 1380 W |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 2.0 V max @ IC=300 A, IB=4.0 A |
| Base-Emitter Saturation Voltage (VBE(sat)) | 2.5 V max @ IC=300 A, IB=4.0 A |
| DC Current Gain (hFE) | ≥ 75 @ IC=300 A, VCE=2.8 V; ≥ 100 @ IC=300 A, VCE=5.0 V |
| Turn-On Time (ton) | 2.5 µs max |
| Storage Time (ts) | 12 µs max |
| Fall Time (tf) | 3.0 µs max |
| Diode Forward Voltage (VFM) | Approximately 1.85 V @ 300 A |
| Isolation Test Voltage | 2000 V RMS / 1 minute, terminals-to-baseplate |
| Transistor Thermal Resistance (RθJC) | 0.09 °C/W |
| Diode Thermal Resistance (RθJC) | 0.30 °C/W |
| Case-to-Sink Thermal Resistance (RθCS) | 0.04 °C/W |
| Operating Junction Temperature | −40 °C to +150 °C |
| Storage Temperature | −40 °C to +125 °C |
| Main Terminal Hardware | M6; approximately 26 in-lb recommended torque |
| Control / Auxiliary Hardware | M4; approximately 12 in-lb recommended torque |
| Approximate Weight | 460 g |
| Mounting / Baseplate | Screw-mount, electrically isolated baseplate |
| Configuration | Single (1-pack Darlington transistor + reverse-parallel diode) |
| Condition | Reclaimed Part |
| Module | Applications | Replacement Notes |
| KS624530 | Industrial inverters; UPS power stages; DC motor control; AC motor control; switching power supplies; legacy power converters | This is a bipolar Darlington module, not an IGBT. Verify base-drive requirements, pinout, voltage/current ratings, diode configuration, mounting footprint and heatsink requirements before replacement. |
