ABB 5SDF0860H0003 Disc Type Thyristor (Press-pack SCR)

Product Description

The 5SDF0860H0003 is ABB round disc press-pack thyristor (SCR), high-power phase control thyristor. It is widely used in ABB high voltage converters, excitation cabinets, rectifier bridges and static var compensation equipment. Press-pack packaging features double-sided cooling, high surge current capability, stable thermal performance, suitable for heavy-duty power conversion in power plant and metallurgy industry.

• Part Number: 5SDF0860H0003, Brand: ABB
• Device type: Press-pack disc thyristor (SCR)
• Package: Round wafer, double-sided cooling
• Core characteristic: High surge current, low thermal resistance, high blocking voltage
• Cooling method: Water cooling or air cooling press stack assembly
• Series match: Often used together with other disc thyristors / diodes in 6-pulse / 12-pulse rectifier stacks
• Certifications: CE, IEC power semiconductor standard
• Manufacturer Status: Mature power semiconductor, original new stock, surplus and tested refurbished available
• Typical gross weight: approx 1.1 kg, origin: Switzerland
• Common matching: Generator excitation rectifier, HV DC power supply, SVC static var compensator

Applications

• Synchronous generator excitation rectifier cabinet for thermal power / hydropower station
• Metallurgy DC drive, rolling mill rectifier unit
• SVC / SVG static var compensation, high voltage rectifier power supply
• Electrolysis power supply, large industrial DC power conversion
• Power plant excitation system spare replacement, thyristor stack overhaul

FAQ

Q: What is the difference between disc thyristor and module thyristor?
A: Disc press-pack type supports double-sided cooling, much higher surge current and power rating; plastic module SCR is for low/medium power, single side cooling.

Q: Can it be replaced by other 5SDF series thyristors?
A: Must match voltage class, current rating and mechanical dimension; different suffix codes are not interchangeable directly.

Q: What should be noted during installation?
A: Need correct compression torque, flat cooling plate, uniform pressure; avoid over-torque crushing the ceramic body.