Application
Supercapacitors for Industrial Automation
PLC hold-up, safe positioning, and sensor backup in factory systems.
Power requirements
Automation equipment needs short hold-up for state saving and controlled stops, often at 24 V DC, in cabinets that may be warm.
Why supercapacitors fit
Maintenance-free hold-up across many power cycles; can be integrated into 24 V supplies or individual devices.
Selection factors
- 24 V bus requires series cells and balancing
- Cabinet temperature
- Required hold-up and controlled-stop energy
- Lifetime vs service intervals
Limitations
- 24 V operation needs ~10 cells in series or a step-up converter
Supercapacitor types
Winding-Type Supercapacitors
Cylindrical cells built from wound electrode foils — the workhorse format from a few farads to thousands.
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Snap-In Supercapacitors
Larger cells with snap-in PCB terminals for higher currents and capacitance.
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Supercapacitor Modules
Series/parallel assemblies with balancing, housed for system-level voltage and energy.
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