HCPL-5501#300

The HCPL-5501#300 is a high-linearity analog optocoupler manufactured by Broadcom, engineered for precise galvanic isolation of analog signals in industrial, aerospace, and defense systems. This single-channel device utilizes an AlGaAs LED and integrated PIN photodiode to deliver exceptional linearity, low gain drift over temperature, and wide analog bandwidth. Housed in a robust small-outline (SOP) hermetic package, it provides high common-mode rejection, minimal input-to-output capacitance, and kilovolt-level isolation, preserving signal integrity under high transient noise. The surface-mount form factor supports high-density board layouts while maintaining the reliability required for extended temperature operation.

Typical uses include isolated ADC front-ends, precision feedback in motor drives and power inverters, and sensor conditioning for avionics, military guidance, and medical instrumentation. The HCPL-5501 family is recognized for long lifecycle support in aerospace and defense supply chains. The #300 variant is an RoHS-compliant, surface-mount configuration; procurement teams should confirm the required screening level and request full traceability, as custom qualification or source-control drawing options may exist for mission-critical programs. Counterfeit mitigation through authorized sourcing is essential for high-reliability deployments.