MZ21 / MZ32 / WMZ12A 15P 100ohm PTC Thermistor For Electric Welding Machines And Inverters

MZ21 / MZ32 / WMZ12A 15P 100ohm PTC Thermistor For Electric Welding Machines And Inverters

Quick Details

1. Silicon temperature sensors have a TK (temperature coefficinet) which is nearly constant over the complete temperature range. Temperature coefficient:α25/50≥0.7%/C.
2. Excellent long term stability, annual diversification rate≤0.01C/per year, temperature drifts during the lifetime of silicon temperature sensor are negligible.
3. Thermal Time Constant: 10 seconds max in still air.
4. Operating temperature range:-10~+45℃.
5. Dissipation factor:2.5--5mW/C.
6. Maximum operating current:Iopr=1.0mA.
7. Rated power:10mW.
8. Typical resistance @25C 600 ohm, 1000 ohm, 1600 ohm, 2000 ohm.

Description

Linear PTC Thermistor (LPTC) resistance increases with the temperature rises in linearity, displays a virtually linear positive temperature coefficient over their entire temperature range, suitable in measurement and control system, temperature compensation. As the construction material is mainly semiconductor monocrystalline silicon, also called silicon temperature sensor, silicon thermistor, sometimes referred to as silistors. As the temperature coefficient is positive, the silicon temperature sensors exhibit fail-safe operation when a system overheats. Furthermore silicon is inherently stable, so silicon temperature sensor are extremely reliable and have very long operational lifetimes. Hermetically sealed glass package, axial leaded, 2 leads, can operate in high temperature and moisture environment. Linear PTC thermistor in small dimension, tightness, convenient for automatic installation.


Application

· Industrial auotomation control equipment.
· Home appliance temperature detection and compensation.
· Precision circuit and crystal oscillator temperature compensation.
· Temperature compensation of silicon semiconducting devices.
· Temperature compensation of instrumentation amplifier.
· A/D converter temperature compensation. · Micro motor timing control.
· Automobile temperature detection and control.
· Medical equipment temperature detection and control.
· Linear PTC thermistor applications also include transmission, engine oil and coolant, heating system, overheating protection, amplifiers, power supplies, transducers, telemetry, computers, magnetic amplifiers, thermometry, meteorology, temperature regulation and over-temperature protection.

Specification

The 15P PTC Thermistor Characteristics Curve




Working Principle

Connect the PTC thermistor in series in the load circuit. When the circuit is in normal working condition, the current through the PTC thermistor is less than the rated current. The PTC thermistor is in the normal state and the resistance is small, which will not affect the normality of the protected circuit. jobs. When the circuit fails, the current greatly exceeds the rated current (2 times of the normal working current), and the PTC thermistor suddenly heats up, showing a high resistance state, so that the circuit is in a relatively "off" state for protection purposes. When the fault is removed, the PTC thermistor automatically returns to a low impedance state and the circuit resumes normal operation.

Application

Inverter welding machine is more and more popular in the world since technoloy required for manufacturing. Good protection can assured inverter welding machine functioning well for long term.

The PTC thermistor characteristics curve:

Product Description:

The PTC Type Thermistor is a Positive Temperature Coefficient (PTC) thermistor with temperature-dependent resistance. It is designed to provide a high level of thermal shock resistance, operating voltage, and resistance range. This thermistor features an operating voltage of 50V, thermal shock resistance of ±0.5°C, thermal time constant of 3s, and a resistance range of 10Ω to 10KΩ. It is ideal for applications where precise, reliable temperature sensing is required.

The PTC Type Thermistor is manufactured with high quality materials for superior performance and reliability. Its robust design ensures a long-term, trouble-free operation in a wide range of temperatures. It is a reliable and cost-effective temperature sensing solution for a variety of applications.

Features:

• Product Name: Positive Temperature Coefficient Thermistor (PTC Type Thermistor)
• Operating Life: 100,000 Cycles
• Operating Voltage: 50V
• Rated Power: 0.25W
• Insulation Resistance: 100MΩ
• Time Constant: 3s

Technical Parameters:

Applications: