Electrolytic + polymer = the hybrid capacitor

April 24, 2017 | 00:00
Image: Panasonic
Image: Panasonic
Electrolytic capacitors rank high on the list of most discussed electronic components. It’s because the old ones dry out or erupt with a vile smell, middle-aged ones go high-ESR, and new ones are subject to long winded discussions by SMPSU designers and, sadly, audiophools. No one seems to like “the electrolytic” and we all silently wish for it to be replaced by a “solid” capacitor with the same value.

Now you can have the best of both worlds: hybrid capacitors from Panasonic Automotive & Industrial Systems have been designed to combine the advantages of electrolytic capacitors with those of solid polymer capacitors.

The supplier claims the use of hybrid technology offers low leakage current and long life in combination with low ESR (20 mΩ) in miniature case sizes. The EEH-ZE series (Type V-ZE) hybrid components offer a nominal capacitance range of 33 µF up to 330 µF, at voltage ranges from 25 VDC up to 63 VDC, and feature an operating temperature range of -55°C up to 145°C, as well low ESR and high ripple current.
So think about using a hybrid capacitor in your next power converter input/output filter, voltage regulator, or clock circuit.

The products are AEC-Q200 compliant, can endure high humidity conditions rated at 85°C/90% (2,000 h) while offering tiered ripple current ratings at 135 °C and 145 °C.
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