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  Thermistors come in various shapes, tailored to different applications and environments.

Thermistors are categorized into two main types:

1. Negative Temperature Coefficient (NTC) Thermistors:

    - Description: NTC thermistors decrease in resistance as temperature increases.

    - Materials: Made from metal oxides like manganese oxide, cobalt oxide, nickel oxide, copper oxide, and aluminum oxide.

    - Temperature Ranges:

        - Low temperature: -60 to 300°C

        - Medium temperature: 300 to 600°C

        - High temperature: >600°C

    - Functions:

        - Power type

        - Compensation type

        - Temperature measurement type

        - Temperature sensor

    - Applications: Used in temperature compensation and automatic temperature control circuits, such as in refrigerators, air conditioners, and greenhouses.

    - Performance: For every 1°C increase, the resistance decreases by 2% to 6%, depending on the model.

2. Positive Temperature Coefficient (PTC) Thermistors:

    - Description: PTC thermistors increase in resistance as temperature increases.

    - Materials: Made by adding rare earth elements to barium titanate (BaTiO2).

    - Types:

        - Slow type: Resistance increases by 0.5% to 8% per 1°C rise.

        - Switching type: Has a Curie point temperature (~120°C for BaTiO2). Below this point, resistance remains low and stable. Above this point, resistance increases sharply.

    - Applications:

        - Slow-type PTC: Used in temperature compensation circuits.

        - Switching-type PTC: Used in degaussing circuits of color TVs, compressor starting circuits of refrigerators, and overcurrent/overheating protection circuits.

    Shiheng Electronics produces high-precision, reliable, and stable thermistors, leading the industry in performance. Our power NTC thermistors excel in surge current suppression and have superior specifications, such as a large B value and minimal residual resistance. The temperature measurement NTC thermistors (MF51, MF52, MF58) have passed UL, TUV, and CQC certifications, with MF58 also passing AEC-Q200 testing and 100,000 durability tests per UL standards. Our NTC temperature sensors offer high accuracy, consistency, stability, reliability, and longevity. Shiheng's thermistors are highly regarded for their excellent performance.