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The ACPL-665KL is a high-speed, hermetically sealed quad-channel optocoupler manufactured by Broadcom Limited. It features a flat-pack 16-pin surface mount package designed for robust digital isolation in demanding environments. The device supports data rates up to 10 Mb/s with an insulation voltage of 1500 Vrms and common-mode transient immunity of 1 kV/µs. Operating characteristics include a forward current of 20 mA, forward voltage of 1.55 V, and power dissipation of 200 mW. Rise and fall times are specified at 20 ns and 8 ns respectively. It operates within a military-grade temperature range from -55°C to +125°C.
Verify the specific ordering suffix and lot traceability requirements against project specifications before procurement. Confirm that the hermetic seal integrity meets the environmental standards required for the target application. Ensure compatibility with the designated surface mount reflow profile to maintain package reliability during assembly processes.
Select this component when hermetic packaging and wide operating temperature ranges are mandatory. The 10 Mb/s data rate suits moderate-speed digital isolation needs. Consider the 16-pin flat-pack footprint for PCB layout constraints. Evaluate the 1500 Vrms insulation level against system safety requirements.
This part belongs to the ACPL-665xL family of high-speed optocouplers. These devices are engineered for high-reliability applications where standard plastic packages may fail. The family shares similar electrical characteristics but varies in channel count and package style. The hermetic construction distinguishes it from commercial-grade alternatives.
Public confirmed substitute part numbers: HCPL-665K.