Which consequence results when the LED within an optocoupler degrades from excessive reverse voltage?

💡 Explanation

Signal distortion results because *photon flux reduction* within the LED leads to inconsistent transistor behavior. Therefore, the optocoupler’s output becomes unreliable, rather than showing improved CTR or noise immunity under these conditions.

• Which outcome occurs when exceeding prestressing limit in concrete beams?
• Which hazard arises when operating a hydraulic actuator beyond its design stroke limit?
• Which outcome occurs in a PID-controlled chemical reactor if the derivative gain is excessively increased?
• Which risk increases when transformer oil undergoes prolonged thermal stress in a high-voltage substation?
• Which outcome accelerates when a circuit breaker repeatedly trips because of inductive load switching?
• Which risk increases when a CNC lathe center's programmable coolant nozzle becomes clogged during continuous operation?