Ptc Thermistors Mz6 Series

Ptc thermistor Ptc thermsitor for electric motor winding protection.

PTC thermistors current protector, also called PTC thermistor resettable fuses, protect load against over-current, overload, short circuit. No need for replacement, resume protective function after a short cooling-down time. Ceramic PTC (positive temperature coefficient) thermistors are used instead of conventional fuses to protect load, such as motors, transformers, or electronic circuit, against overcurrent for circuit protection. PTC thermistor protector not only respond to inadmissibly high currents but also if a preset temperature limit is exceeded. PTC thermistor over-current protector limits the power dissipation of the whole circuit by increasing their resistance and thus reducing the current to a harmless residual value. In contrast to conventional fuses, PTC thermistor resettable fuses do not have to be replaced after elimination of the fault but resume their protective function immediately after a short cooling-down time. PTC Thermistor Over-current Protector Application It applies in the over-current overload and short circuit protection of transformers, battery charger, switches, switch power supply, adaptor, meter, instrumentation, apparatus, electronic coils, control panels, air conditioner, automotive electron, etc. Operating Principle of PTC Thermistor for Overload Over-current Protection The operating principle is as indicated in the following. When a circuit is in the normal status, the current through PTC is lower than the rated current and PTC thermistor protector is in the normal state with small resistance value, which will not affect the normal operation of the protected circuit. In case of some fault in the circuit and the current is greater than the rated current, the PTC thermistor protector will become hot quickly and present a high resistance state, which sets the circuit relatively "off" to protect the circuit from damage. After the fault is removed, PTC thermistor protector will automatically restore its low resistance state and the circuit will resume normal operation. Normally, when PTC thermistor is used as an overcurrent protection component, it is preferred to select maximum operating current, maximum operating voltage and proper specifications. Furthermore such factors should be taken into consideration as the dimensions of the components, rated zero-power resistance, operating temperature range, etc.

PTC thermistors current protector, also called PTC thermistor resettable fuses, protect load against over-current, overload, short circuit. No need for replacement, resume protective function after a short cooling-down time. Ceramic PTC (positive temperature coefficient) thermistors are used instead of conventional fuses to protect load, such as motors, transformers, or electronic circuit, against overcurrent for circuit protection. PTC thermistor protector not only respond to inadmissibly high currents but also if a preset temperature limit is exceeded. PTC thermistor over-current protector limits the power dissipation of the whole circuit by increasing their resistance and thus reducing the current to a harmless residual value. In contrast to conventional fuses, PTC thermistor resettable fuses do not have to be replaced after elimination of the fault but resume their protective function immediately after a short cooling-down time. PTC Thermistor Over-current Protector Application It applies in the over-current overload and short circuit protection of transformers, battery charger, switches, switch power supply, adaptor, meter, instrumentation, apparatus, electronic coils, control panels, air conditioner, automotive electron, etc. Operating Principle of PTC Thermistor for Overload Over-current Protection The operating principle is as indicated in the following. When a circuit is in the normal status, the current through PTC is lower than the rated current and PTC thermistor protector is in the normal state with small resistance value, which will not affect the normal operation of the protected circuit. In case of some fault in the circuit and the current is greater than the rated current, the PTC thermistor protector will become hot quickly and present a high resistance state, which sets the circuit relatively "off" to protect the circuit from damage. After the fault is removed, PTC thermistor protector will automatically restore its low resistance state and the circuit will resume normal operation. Normally, when PTC thermistor is used as an overcurrent protection component, it is preferred to select maximum operating current, maximum operating voltage and proper specifications. Furthermore such factors should be taken into consideration as the dimensions of the components, rated zero-power resistance, operating temperature range, etc.

Temperature Protection PTC Thermistor Description PTC (positive temperature coefficient )thermistor switches at one particular temperature. Making use of the characteristics that the resistance of PTC thermistor increases sharply above curie temperature, when ambient temperature increases abnormally, protective circuit installed PTC thermistor will turn on or cut off loop through resistance changing, achieving thermal protection purpose. PTC thermistor protect such equipment and components as motors, transformers, power transistors and thyristors against over-temperature. A PTC thermistor is less expensive than a thermostat, and its switch temperature can be more accurately specified. It is also smaller and easier to design-in to electronic circuitry. Therefore PTC thermistor can be ideal devices for temperature detection, monitoring, indicating, limiting and over (excessive) temperature protection. Typical Application of PTC Thermistor for Temperature Protection and temperature limiting sensors Limit temperature measurement of Industrial electronics application. Power supplies, switch power supply. Home appliances, such as dish washers, washing machines, ironing machines, electric cookers, etc. Electronic data processing and communications engineering (DC/DC converters). Motor windings overheating Protection. Automotive electronics. Semiconductor heatsinks, enclosure panels, temperature-limited transistors. Lighting applications. Features of PTC Thermistor for Temperature Protection and temperature limiting sensors 2 Outlook construction: A-radial leaded epoxy resin coated form, B-metal tag lug form. PTC Thermistor Protection temperature: 60-130C Quick response. Long stability. Small dimension, convenient for installation. Do not need to be reset after protection.

PTC Alloy wire has medium resistivity and high positive temperature coefficient of resistance. It is widely used in various heaters. It can automatically control temperature and adjust power by keeping comstant current and limiting current. GRADE:P-4500,P-4000,P-3800,P-3500,P-3000,P-2500

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. AMWEI Linear PTC Thermistor (LPTC) Features: 1. Silicon temperature sensors have a TK (temperature coefficinet) which is nearly constant over the complete temperature range. Temperature coefficient a25/50>=0.7%/C. 2. Excellent long term stability, annual diversification rate

Thermistor Manufacturing Ya Xun with the most advanced equipment and technology, to provide customers with a variety of thermistor manufacturing services, including NTC, PTC, NTC sensors and PTC sensors, power thermistors and so on. We have all the technical and production processes thermistor, comprising Metal Element Synthesis - Chip Sintering - Electrode preparation - Slicing - Packaging - Finished product testing. We manufacture thermistors that export all over the world, created China's most high-quality sensitive components, affordable price service to customers.Ya Xun thermistor manufacturing technology and temperature sensor processing services complement each other, this one-stop service can meet your more complex product design requirements. welcome to contact us for free quotes, to discuss the best solution for the project. What Is A Thermistor? Thermistor is a temperature coefficient sensitive element, according to the temperature coefficient is divided into different temperature coefficient thermistor (PTC) and negative temperature coefficient thermistor (NTC), the thermistor element using various combinations of metal sintering, to achieve desired characteristics of the final product. Advanced processing technology will be based on customer requirements for parameter adjustment. Our technical staff will continue to improve elements combined process, to improve the accuracy of the resistance of the final optimized to meet the product design requirements. In Ya Xun, in order to meet the different customer requirements, develop a variety of resistance materials: semiconductor resistive materials, metal resistive materials, alloy resistive materials.

Application/Category Application/Category Design Leaded disks, coated, 63 V Max. operating voltage (V) 80 Rated resistance (Ohm) 25 Type B59980C0080A070

Brief introduction: Ptc thermistor for time delay of lighting&ballast, which are applicable to various types of fluorescent lamp, electronic ballast, electronic energy-saving lamp and digital multi-meters.It can change hard stard of the ballast and electronic energy-saving lamp to pre-heated stard and preheating time of the filament can come up to 0.4-2.0 seconds, which can greatly prolong service life of the fluorescent tube by over 4 times. Product application: 1. Various types of fluorescent lamp 2. Electronic ballast 3. Electronic energy-saving lamp Advantages: 1. Used in the frequent-switching, typical switching life can pass over 100, 000 times 2. High reliability, good performance of safety and stability 3. Wide operating temperature range -25 ~ +125 celsius degree(when v=0v) 0~ +60 celsius degree(when v=vmax) 4. The withstanding voltage can reach to over 420-1000vac 5. The resistance will not drift in normal temperature. 6. Small dimension 7. Complete specifications 8. Stable delayed time Remarks: many specifications for choice, and samples&orders can be custom made per customers' requirement. Bulk or carton package