Technical documentation identifies this component as a passive Negative Temperature Coefficient (NTC) thermistor with a 5kΩ resistance at 25°C. The hardware is a direct OEM replacement for Samsung evaporator rails, featuring a two-wire yellow harness and a standard Molex connector for airtight sealing. Operating specifications cover a range from -40°F to 140°F, specifically calibrated for high-humidity evaporator environments.
Aggregated repair data indicates that the epoxy encapsulation on the thermistor head is a known point of failure; moisture ingress through micro-fissures causes resistance drift, which leads to incorrect defrost timing. The component does not contain integrated logic or a communication radio; its output is interpreted by the appliance's main PCB. Structural analysis confirms the presence of an integrated clip for attachment to evaporator coils.
Detailed Resistance Profile:
The NTC 5kΩ curve dictates that resistance values increase as the ambient temperature decreases, allowing the control board to calculate thermal states based on voltage drops.
Since this analog part provides no telemetry during failure, monitoring the appliance with an air quality monitor or temperature logger can provide early warning of defrost failure. If you require a sensor with integrated Wi-Fi alerts rather than a passive analog component, the TEMPIQ WiFi Temperature Sensor serves as an external monitoring alternative. This part is indexed under freeze/temp sensors for appliance maintenance.
