1. Core Parameters
| Parameter | Typical Value | Description |
|---|---|---|
| Part Number | 5SHX1445H0001 | Standard IGCT of ABB 5SHX series |
| Rated Voltage (VDRM) | 3.3 kV | Blocking voltage, suitable for medium-voltage topologies |
| Rated Current (ITAV) | 1445 A | Continuous DC current |
| Peak Current (ITSM) | 2400 A | Surge peak current |
| On-state Voltage Drop (VTM) | ≈2.5 V | Low loss, about 40% lower than conventional GTO |
| Turn-off Time (tq) | ≤1 µs | Ultra-fast turn-off, device-to-device variation < 0.2 µs |
| Switching Frequency | Up to 1 kHz | Balances power loss and dynamic performance |
| Package | Press-pack (disc type) | Double-sided cooling, press-fit installation |
| Operating Temperature | -25℃ ~ +70℃ (case temperature) | Maximum junction temperature 125℃ |
| Short-circuit Withstand | 10 kA | Fast turn-off within 3 µs |
| Drive Interface | Fiber isolation + 24V DC | Built-in drive, low-inductance gate |
| Dimensions / Weight | 142×127×36 mm / 1.2 kg | Standard press-pack module size |
2. Key Features
1. High Integration (Snubber-less Design)
- Built-in GTO chip, anti-parallel diode, gate drive and TMR protection circuit
- No RC snubber required: simplifies system, reduces components, improves reliability
- Fiber optic isolation: strong anti-interference, suitable for high-voltage and strong electromagnetic environment
2. Fast Turn-off and Series Voltage Balancing
- Turn-off time ≤1 µs, excellent device consistency (variation < 0.2 µs)
- Strong dynamic voltage balancing in series: uniform voltage distribution among multiple modules in series, reduces overvoltage risk
3. Low Loss and High Efficiency
- On-state voltage drop ≈2.5 V, low switching loss
- System efficiency >98%, suitable for high-power continuous operation
4. High Reliability and Hardware Fault Tolerance (TMR)
- Triple Modular Redundancy (TMR): microsecond-level fault response, hardware fault tolerance
- Fuse-less design: short-circuit withstand 10 kA, turn-off within 3 µs
- Press-pack package: double-sided cooling, pressure contact, long service life, high vibration resistance
3. Typical Applications
- Medium-voltage high-power inverters: rolling mills, fans, pumps (ACS1000/ACS6000 series)
- VSC-HVDC (Voltage Source Converter based High Voltage Direct Current)
- Wind power converters: full-power converters, grid-connected converters (5MW+ wind turbines)
- Industrial drives, marine propulsion, electric locomotive traction
- Grid SVG/STATCOM, energy storage converters
4. Difference from 5SHX1445H0002
- 5SHX1445H0001: Standard version, 3.3kV/1445A, matched with 3BHL000391P0101 drive board
- 5SHX1445H0002: Enhanced version, better turn-off consistency and superior series voltage balancing, ideal for high-voltage series topologies
5. Matching and Selection Guidelines
- Matching drive: 3BHL000391P0101 (original integrated drive board, 24V power supply, fiber control)
- Cooling: Forced air cooling / liquid cooling, ensure case temperature -25℃ ~ +70℃
- Series application: Optimize dynamic voltage balancing by its turn-off consistency; du/dt snubber can be reduced or eliminated
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