Durable Lighting Switching PTC Thermistor / Chip Thermistor For Preheated Start
Product Details:
Place of Origin: | Dongguan,Guangdong,China |
Brand Name: | UCHI |
Certification: | UL,SGS,ROHS |
Model Number: | PTC Thermistors for Lighting Switching |
Payment & Shipping Terms:
Minimum Order Quantity: | 1000PCS |
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Price: | Negotiable |
Packaging Details: | Bulk |
Delivery Time: | 7 working days |
Payment Terms: | T/T,Paypal,Western Union,Money gram |
Supply Ability: | 600,000,000PCS Per Month |
Detail Information |
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Highlight: | high temperature thermistor,positive temperature coefficient thermistor |
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Product Description
Durable Lighting Switching PTC Thermistor / Chip Thermistor For Preheated Start
Quick Details
Description
Application
Specification
Switching PTC thermistors Operating Principle
The application of the PTC thermistor to achieve preheated start is as follows: Immediately after power is switched on, Rt is in normal temperature state and its resistance is far lower than the C2 resistance. The current through C1 and Rt forms a return circuit to preheat the filament. After about 0.4-2 seconds, Rt joule heat temperature exceeds Curie point Tsc and skips into high resistance state of far higher than C2 resistance. The current passes through C1 and C2 to form a return circuit, which causes L resonance and produces high voltage to light the fluorescent tube.
Circuit of PTC Thermistors Delay operation of relay
Lighting Switching PTC Thermistors Dimensional Drawings
Part |
Dimension (mm) |
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Dmax |
Tmax |
Fd |
F |
|
MZ31-03 series |
4.5mm |
5.0mm |
0.5mm |
5.0mm |
MZ31-05 series |
6.5mm |
5.0mm |
0.6mm |
5.0mm |
MZ31-07 series |
8.0mm |
5.0mm |
0.6mm |
5.0mm |
PTC Thermistor for Lighting Time Delay and Switching Starting Application Data Sheet
Part No. |
Switching (Centigrade) |
Resistance at +25℃
(ohm) |
Max. Voltage (vAC) |
MZ31-03 series |
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MZ31-03M151N500 |
80C ± 7 C |
150 ohm ±30% |
500V |
MZ31-03M271N650 |
270 ohm ±30% |
650V |
|
MZ31-03M391N650 |
390 ohm ±30% |
650V |
|
MZ31-03M681N800 |
680 ohm ±30% |
800V |
|
MZ31-03M102N800 |
1000 ohm ±30% |
800V |
|
MZ31-03M152N800 |
1500 ohm±30% |
800V |
|
MZ31-03M332N800 |
3300 ohm ±30% |
800V |
|
MZ31-03N151N420 |
100C ± 7C |
150 ohm ±30% |
420V |
MZ31-03N271N500 |
270 ohm ±30% |
500V |
|
MZ31-03N391N650 |
390 ohm ±30% |
650V |
|
MZ31-03N561N650 |
560 ohm ±30% |
650V |
|
MZ31-03N681N650 |
680 ohm±30% |
650V |
|
MZ31-03N102N800 |
1000 ohm ±30% |
800V |
|
MZ31-03N152N800 |
1500 ohm±30% |
800V |
|
MZ31-03P151N420 |
110C±7C |
150 ohm ±30% |
420V |
MZ31-03P271N500 |
270 ohm ±30% |
500V |
|
MZ31-03P331N500 |
330 ohm ±30% |
500V |
|
MZ31-03P391N500 |
390 ohm ±30% |
500V |
|
MZ31-03P561N650 |
560 ohm ±30% |
650V |
|
MZ31-03P821N650 |
820 ohm ±30% |
650V |
|
MZ31-03P102N650 |
1000 ohm ±30% |
650v |
|
MZ31-05 series |
|||
MZ31-05M151N650 |
80C±7C |
150 ohm ±30% |
650V |
MZ31-05M175N650 |
175 ohm ±30% |
650V |
|
MZ31-05M271N650 |
270 ohm ±30% |
650V |
|
MZ31-05M391N800 |
390 ohm ±30% |
800V |
|
MZ31-05M561N800 |
560 ohm ±30% |
800V |
|
MZ31-05M102N800 |
1000 ohm ±30% |
800V |
|
MZ31-05M222N800 |
2200 ohm ±30% |
800V |
|
MZ31-05N151N650 |
100C ± 7C |
150 ohm ± 30% |
650V |
MZ31-05N175N650 |
175 ohm ±30% |
650V |
|
MZ31-05N271N650 |
270 ohm ±30% |
650V |
|
MZ31-05N391N650 |
390 ohm ±30% |
650V |
|
MZ31-05N561N800 |
560 ohm ±30% |
800V |
|
MZ31-05N102N800 |
1000 ohm ±30% |
800V |
|
MZ31-05P151N500 |
110C ± 7C |
150 ohm ±30% |
500V |
MZ31-05P175N500 |
175 ohm ±30% |
500V |
|
AMZ31-05P271N650 |
270 ohm ±30% |
650V |
|
MZ31-05P391N650 |
390 ohm ±30% |
650V |
|
MZ31-05P561N800 |
560 ohm ±30% |
650V |
|
MZ31-05P681N800 |
680 ohm ±30% |
800V |
|
MZ31-05P102N800 |
1000 ohm ±30% |
800V |
|
MZ31-07 Series |
|||
MZ31-07M70RN650 |
80C ± 7C |
70 ohm ±30% |
650V |
MZ31-07M101N650 |
100 ohm±30% |
650V |
|
MZ31-07M151N650 |
150 ohm ±30% |
650V |
|
MZ31-07M221N800 |
220 ohm ±30% |
800V |
|
MZ31-07M271N800 |
270 ohm±30% |
800V |
|
MZ31-07M391N800 |
390 ohm ±30% |
800V |
|
MZ31-07M681N900 |
680 ohm±30% |
900V |
|
MZ31-07N70RN650 |
100C±7C |
70 ohm ±30% |
650V |
MZ31-07N101N650 |
100 ohm ±30% |
650V |
|
MZ31-07N151N650 |
150 ohm ±30% |
650V |
|
MZ31-07N221N800 |
220 ohm ±30% |
800V |
|
MZ31-07N271N800 |
270 ohm ±30% |
800V |
|
MZ31-07N331N800 |
330 ohm ±30% |
800V |
|
MZ31-07N391N800 |
390 ohm ±30% |
800V |
|
MZ31-07N561N900 |
560 ohm ±30% |
900V |
Reference information of PTC thermistors for lighting time delay and switching preheated starting applications
1. The switching time Ts can be approximated as follows:
Ts=Cth .V.(TRef-TA)/P
TRef Reference temperature of PTC thermistor
TA Ambient temperature
Cth Heat capacity of PTC thermistor
V PTC thermistor volume
P Switch-on power of PTC thermistor
This shows that the switching time can be influenced by the size of the PTC thermistor, its reference temperature and the power supplied. Switching time are lengthened by increasing the volume or the reference temperature, high power consumption by the PTC thermistor, on the other hand, results in short switching time.
2. Single capacitor starting circuit has higher demand on PTC thermistor voltage withstanding capacity, general required withstanding voltage >800V.
3. PTC thermistor reliability can be increased through higher resistivity, higher resistivity PTC thermistor shall be chosen first at the premises of satisfying starting characteristics.
Reference Information for Lighting Watts Corresponding to AMWEI PTC thermistor parts
1. Below 15W light , AMZ31-03 series.
2. 15-28W light, AMZ31-05 series.
3. 28-56W light, AMZ31-07 series.
4. Around 60W light, AMZ31-08 series.
In the same dimension and the switching temperature, the lower the light watt, the higher the resistance at 25 centigrade (R25). The higher the R25, the higher the voltage withstanding capacity.
Competitive Advantage:
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Factory supply directly
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Completed certificates such as UL,VDE,SGS,etc and high quality available
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Quick delivery
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Best after-sales services
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OEM & ODM available