Maximum Power 3.5mW Negative Temperature Coefficient Thermistor UCHI

Name: Maximum Power 3.5mW Negative Temperature Coefficient Thermistor UCHI
Brand: Guangdong Uchi Electronics Co.,Ltd

Negative Temperature Coefficient Thermistor Operating Temperature Range -30 ~ 110 °C Scope This specification defines ratings, dimension, insulation, climatic test and mechanical characteristics for MJT type thermistor Climatic test Dry Heat After the test samples are exposed in air at 90±1°C for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ±1% of the initial value. Damp heat After the test samples are exposed in the humidity of 95% at 40±2

Dissipation factor Approx. 0.7 mW/°C(in air)

Operating temperature range -30 ~ 110 °C

Thermal time constant Approx. 5.0 s : 3.5 mW : -30 ~ 110 (in air)

Place of Origin Dongguan,Guangdong,China

Packaging Details Bulk

Model Number IT

ntc power thermistor power thermistor temperature power switch

Product Description

Climatic test

Dry Heat

After the test samples are exposed in air at 90±1°C for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ±1% of the initial value.

Damp heat

After the test samples are exposed in the humidity of 95% at 40±2°C for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ±1% of the initial value.

Cold

After the test samples are exposed in air at –30±1°C for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ±1% of the initial value.

Loading
After DC 1mA current is applied to the test samples in the temperature of 40±2°C and the humidity of 95% for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ±1% of the initial value.

Mechanical characteristics

1. Resistance to soldering heat
The terminals shall be dipped in to a soldering bath having a temperature of 260±5°C to a point 2.0 mm from the body and then be held there for 5 ±1s, the change ratio of the rated zero-power resistance shall be within ±1% of the initial value.

2. Solderability
After dipping the terminal to a depth in a soldering bath of 235±5°C for 2

±0.5s .Approximately 90% of terminals should be covered with solder

uniformly.

3. Free fall

After three times fall to a maple board from 0.75 m high, there shall be no visible damage and the change ratio of the rated zero-power resistance shall be within ±1% of the initial value.

4. Robustness of terminations
After 1N loading weight for 10 ± 1s was applied to the wire terminations, there shall be no visible damage and the change ratio of the rated zero-power resistance shall be within ±1% of the initial
value.