Leadless NTC Thermistors

North Star Sensors chip thermistors (thermistor without leads) may be mounted on hybrid integrated circuits, integrated circuits, or printed circuit boards by conductive epoxy bonding or by soldering. Lead attachment to top surface of the thermistor die may be accomplished by wire bonding, conductive epoxy bonding or soldering.

Typical applications for leadless NTC chip thermistors are for circuit over-temperature protection and/or temperature compensation.

Because leadless NTC thermistors are uncoated, suitable protection must be provided for the thermistors during operation and storage.

Datasheets:

A2 Series Leadless Gold Wire Bondable NTC Thermistor

A1 Series Leadless NTC Thermistor

. . . All Datasheets

Technical Information:

Leadless NTC Thermistor Stability Study

Features:

Top and bottom surface electrode
Standard die sizes range from 0.01" x 0.01" to 0.1" x 0.1"
Bulk packaging or packaging for automation available
Point-matched R25 tolerances range from ±10%, ±5% to ±2%
R25 values range from 100 Ω to 100,000 Ω
Industry standard R/T Curves available

Consult factory for custom NTC thermistor requirements

Here are a few example part numbers and configurations:

    Part Number
    Resistance 25 °C
    Curve
    Resistance Tolerance
    Die Size
    Electrode
  


    A2A103R44P2W
    10,000 Ω
    44
    ±2%
    0.017" x 0.017" (L x W)
    0.005" (H)
    Gold
  

    A1B303R43P5W
    30,000 Ω
    43
    ±5%
    0.027" x 0.027" (L x W)
    0.011" (H)
    Silver
  

Go to page How to Select an NTC Thermistor for more explanation on part number codes.