Need four diodes at 225C?

Belgium firm Cissoid has released a quad 80V wide temperature range diode package.

Called CHT-ELARA, its isolated diodes operate across -55 to 225°C, handling up to 900mA at the highest temperature.

They come in a hermetic 5×5.5mm TDFP16 ceramic package with a heat slug to achieve 11°C/W junction-to-case thermal resistance.

Applications are expected in power rectification, for fly-back or forward dc-dc converters and gate drivers, for example.

Junction capacitance is 15pF at 25V, Vf is 0.33V at 1mA at 225°C.

They present a leakage current limited to 2µA at 80V reverse voltage and 225°C, allowing use in charge pumps.

Vf is 1.5V at 225°C at 450mA.

“CHT-ELARA is a very flexible product that can be used as a full bridge rectifier, a single diode, a clamping device, common cathode or common anode,” said Cissoid CTO Pierre Delatte. “It provides the robustness and extended life time required in aeronautics, oil, gas and industrial applications.”

steve bush

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via Yuichun