1. NTC thermistor test products include:
(1) Power NTC thermistor;
(2) Temperature measuring NTC thermistor;
(3) Compensation NTC thermistor;
(4) Temperature sensor.
2. NTC thermistor test items
Electrical performance:
(1) NTC zero-load resistance value;
(2) B constant;
(3) Dissipation coefficient;
(4) Thermal time constant:;
(5) Withstand voltage;
(6) Rated power;
(7) (for power NTC thermistors) impulse capacitance;
(8) (for power NTC thermistors) steady-state current.
Mechanical behavior:
(1) Strength tensile test of the lead-out end;
(2) Weldability test;
(3) Welding heat resistance test;
(4) Resin encapsulation strength;
(5) Free fall.
Weather resistance:
(1) NTC thermistor steady-state damp heat test;
(2) Rapid temperature change test of NTC thermistor;
(3) High temperature storage test;
(4) Low temperature storage test;
(5) Zero power consumption resistance drift rate at room temperature;
