MZ72-18RM270 PDF – 270V, PTC Thermistor

This post explains for the Thermistor.

The Part Number is MZ72-18RM270.

The function of this semiconductor is 270V, Encased single-element PTC thermistor.

Manufacturer: DXM Technology

Preview images :MZ72-18RM270 pdf datasheet

Description

A PTC (Positive Temperature Coefficient) thermistor, also known as a PTC resistor or PTC thermally sensitive resistor, is a type of thermistor that exhibits an increase in resistance with an increase in temperature. It is made from a ceramic or polymer material with a positive temperature coefficient of resistance.

Characteristics of PTC thermistors:

1. Temperature Sensing: PTC thermistors are primarily used for temperature sensing and control applications. As the temperature increases, the resistance of the PTC thermistor rises, providing a measurable and predictable change in resistance with temperature.

2. Self-Resetting Protection: PTC thermistors have a unique property called “self-resetting” or “positive temperature coefficient behavior.” When exposed to excessive current or overtemperature conditions, the resistance of the PTC thermistor increases significantly, reducing the current flow and providing protection against overcurrent or overheating. Once the fault condition is removed, the PTC thermistor automatically returns to its low-resistance state.

3. Inrush Current Limiting: PTC thermistors are commonly used in power supply circuits as inrush current limiters. During power-up, when the current surge can occur due to charging capacitors, the PTC thermistor limits the initial high inrush current, protecting the power supply components.

Features:

1 MZ72-4R5N140 4.5±30% 40:60 140 ≥25 ≤300 ≤15 100,120 10
2 MZ72-7R0N270 7±30% 40:60 270 ≥25 ≤300 ≤12 220 10
3 MZ72-9ROM270 9±20% 40:60 270 ≥25 ≤300 ≤10 220 10
4 MZ72-10RM270 10±20% 40:60 270 ≥25 ≤120 ≤10 220 10
5 MZ72-12RM270 12±20% 40:60 270 ≥20 ≤240 ≤10 220 10
6 MZ72-14RM270 14±20% 40:60 270 ≥20 ≤240 ≤8 220 10
7 MZ72-18RM270 18±20% 40:60 270 ≥20 ≤250 ≤8 220 10
8 MZ72-20RM270 20±20% 40:60 270 ≥20 ≤250 ≤8 220 10
9 MZ71-27RM270 27±20% 40:60 270 ≥20 ≤250 ≤8 220 10

 

Applications:

1. Encased single-element PTC thermistor for degaussing of colour TV,colour monitor […]

 

MZ72-18RM270 PDF Datasheet