Which outcome occurs for high-power LEDs operating without a heat sink?

💡 Explanation

Thermal runaway occurs because Joule heating increases junction temperature, reducing the bandgap and increasing current. Therefore, the current continues to increase leading to catastrophic failure, rather than stabilizing or undergoing radiative recombination.

• Which mechanism causes receiver desensitization in radio communications?
• Which risk increases when concrete permeability rises when exposed rebar is subject to chloride ingress?
• Which outcome fundamentally affects the signal fidelity when cable shield impedance is excessively high?
• Which consequence results when circulating currents overheat transformer windings?
• Which outcome occurs when a refrigeration system compressor uses a refrigerant with high moisture content?
• Which outcome occurs with scroll compressor when non-condensable gases contaminate refrigerant?