1. Core Parameters
| Parameter | Typical Value | Description |
|---|---|---|
| Part Number | 5SGX1445H0001 / 5SHX1445H0001 | ABB 5SGX/5SHX series press-pack IGCT |
| Rated Voltage (VDRM) | 6.0 kV | Ultra-high voltage blocking, suitable for 3.3–6.0 kV topologies, expandable to 12 kV+ in series |
| Rated Current (ITAV) | 1445 A | Continuous DC current (typical value) |
| Peak Current (ITSM) | 4335 A | Surge peak current (3× rated), supports heavy-duty and short-circuit conditions |
| On-state Voltage Drop (VTM) | ≈1.8–2.0 V | Low loss, approx. 35% lower than conventional GTO |
| Turn-off Time (tq) | ≤1.2 µs | Ultra-fast turn-off, excellent device consistency (variation < 0.2 µs) |
| Switching Frequency | Up to 10 kHz | High-frequency capability, balances loss and dynamic performance |
| Package | Press-pack (disc type) | Double-sided cooling, press-fit installation, standard industrial size |
| Operating Temperature | -40℃ ~ +125℃ (case temperature) | Max. junction temperature 150℃, wide temperature range for harsh environments |
| Short-circuit Withstand | 20–25 kA | Fast turn-off within 3 µs, hardware-level fault response |
| Drive Interface | Fiber isolation + 24V DC | Built-in low-inductance gate drive, strong EMI immunity |
| Dimensions / Weight | 220×180×100 mm / 2.0 kg | Standard press-pack module size |
2. Key Features
1. 6kV Ultra-high Voltage Design
Specially designed for 6.0 kV high-voltage systems. The asymmetric structure optimizes turn-off performance without additional RC snubber, simplifying topology and reducing cost and losses.
2. Snubber-less Integrated Design
Built-in GTO chip, anti-parallel diode, gate drive and TMR (Triple Modular Redundancy) protection circuit. High integration reduces external components and improves system reliability.
3. Fast Turn-off and Series Voltage Balancing
Turn-off time ≤1.2 µs, device-to-device variation <0.2 µs, excellent dynamic voltage balancing in series. Uniform voltage distribution among series modules reduces overvoltage risk, suitable for 6–12 kV high-voltage series topologies.
4. Low Loss and High Efficiency
Low on-state voltage drop and low switching loss, system efficiency >98%, suitable for high-power continuous operation and reducing operation and maintenance costs.
5. High Reliability and Hardware Fault Tolerance
TMR provides microsecond-level fault response; press-pack package features double-sided cooling, vibration resistance and long service life, adapting to harsh scenarios such as metallurgy, mining, wind power and marine propulsion.
3. Typical Applications
- ABB medium and high-voltage inverters: ACS6000/ACS8000 series (3.3–6.0 kV), for rolling mills, fans, pumps, marine propulsion, mine hoists.
- Generator excitation systems: AC 800PEC excitation controller for fast voltage regulation and fault protection.
- Grid and new energy equipment: Flexible AC Transmission Systems (FACTS), SVG/STATCOM, wind/PV converters, energy storage converters.
- Industrial heavy-load applications: Main rolling mill drives, mine hoists, petrochemical compressor drives.
- HVDC (High-Voltage Direct Current): Controls DC current and provides efficient communication functions.
4. Matching and Selection Guidelines
1. Matching Drive
Must be used with ABB original drive board (3BHB003230R0101 / GVC703AE01), powered by 24V DC with fiber control to ensure matching drive and protection logic.
2. Cooling Solution
Adopt forced air cooling or liquid cooling, strictly control case temperature within -40℃ ~ +125℃ to ensure long-term stable operation.
3. Series Application
Optimize dynamic voltage balancing by module turn-off consistency; du/dt snubber can be reduced or eliminated to improve system efficiency.
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