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Address: No.1, Yixiang ,Liwu Industrial Park,Liwuyuan Village,Xihu District, Shilong Town,Dongguan 523325,Guangdong ,China
Contact name:James Lai
Dongguan Ampfort Electronics Co., Ltd. |
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Silicone Coated PTC Thermistor MZ126A 12 OHM 30% 270V 2A For
Electric Welding Machine
I Description Of The PTC Thermistor MZ126A 12 OHM 30% 270V 2A
PTC126A is the thermistor model PTC: Positive Temperature
Coefficient 126A: 12 Ohm 6A
Thermistors are divided into positive temperature coefficient
thermistors (PTC) and negative temperature coefficient thermistors
(NTC). At present, PTC mainly includes polymer material PTC and
ceramic PTC, and ceramic PTC has a higher overvoltage tolerance.
The PTC of molecular materials is good, but the response speed of
PTC of polymer materials is faster than that of ceramic PTC.
Generally, ceramic PTC cannot achieve low resistance, and low
resistance PTC uses polymer materials.
Hello! MZ6 is a commonly used positive temperature coefficient
thermistor in the industry. The head size of the product is 6MM,
and the specific parameters of the product cannot be seen. This
type of product mainly includes switching temperature, resistance,
and overcurrent Protection is still used on energy-saving lamps. We
are specialized in producing such products, and hope to help you.
II Overall Dimension Of The PTC Thermistor MZ126A 12 OHM 30% 270V 2A
| 10mm |
| Hmax | 5mm |
| F | 5mm |
| d | Φ0.5mm |
| h | 4mm |
III Coating Of The PTC Thermistor MZ126A 12 OHM 30% 270V 2A
| Material | Color |
□Phenolic Resin | ■Green |
IV Electrical Performance Of The PTC Thermistor MZ126A 12 OHM 30% 270V 2A
| No. | Item | Requirements | Test condition and method |
| 5.1 | Nominal resistance value | 12Ω±30%3 | Under the condition of 25℃, the DC resistance value of the thermistor measured with sufficiently low power consumption. |
| 5.2 | Working current | 25℃ /170mA | Connect an ammeter in series with the test loop, then keep the product at a specified temperature (25°C), apply a specified current (140mA) and voltage (220V), and observe the current change displayed by the ammeter within a specified time. |
| 5.3 | Operating current | 25℃ 340mA | Connect an ammeter in series with the test circuit, then keep the product at a specified temperature (25°C), apply a specified current (340mA) and voltage (220V), and observe the current change displayed by the ammeter within a specified time. |
| 5.4 | Withstand current capability | 2.0A | The power supply voltage is 220VAC, the current is 2.0A, and the power is turned on for one minute and the power is cut off for ten minutes. The resistance change rate does not exceed the requirements. |
| 5.5 | Withstand voltage | ≥270V | Apply the specified maximum voltage to the sample, and the resistance change rate does not exceed the specified value. |
V Working Principle Of The PTC Thermistor MZ126A 12 OHM 30% 270V 2A
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.
VI Application Of The PTC Thermistor MZ126A 12 OHM 30% 270V 2A
Inverter welding machine is more and more popular in the world
since technoloy required for manufacturing,
however, good protection can assured inverter welding machine
functioning well for long term. We can supply
all set of components for overcurrent protection / overvoltage
protection. Below is lists we supplying our
customers for your ref:
| Varistor | 07D361K |
| PTC Thermistor | 126A 15P 16P 16P5R0M265 08M12RM265 05M120-180 19P MZ72-18ROM MZ11-13N13-20 MZ12-16P2R1H140,MZ12-16P4R7H140,MZ11-16P5R0H265,MZ11-16P6R0H265,MZ11-16P7R0H265,MZ11-16P10RH265,MZ11-16P12RH265,MZ72-18RM |
| NTC Thermistor | 2.5D-20 5D-20 8D-20 47D-15 2.5D-15 47D-20 |
| Fuse | Glass fuse/Ceramic fuse 3.6x10mm/5x20mm/6.35x31.8mm/10x38mm
STP/SFP/BTC/BFC/BMT/BMF/PTU/PFU |
VII Manufacturing Process Of The PTC Thermistor MZ126A 12 OHM 30% 270V 2A
Weighing ⇒ Ball Milling ⇒ Presintering ⇒ Granulation ⇒ Forming ⇒
Sintering ⇒ Add electrode ⇒ Resistance
sorting ⇒ Pressure line ⇒ Package insulation ⇒ Assembly ⇒ Withstand
voltage detection ⇒ Resistance
Inspection ⇒ Final inspection ⇒ Packaging ⇒ Put into warehouse .
VIII Other part number PTC Thermistor MZ126A 12 OHM 30% 270V 2A
MZ11-10N12RH250,MZ11-10N18RH265,MZ11-10N22RH265,MZ11-10P15RH265,MZ11-10P39RH265
SPMZB-9H25RH265,SPMZB-9Z1R0H15,SPMZB-9Z1R2H15,SPMZB-9Z1R8H15
WMZ12A-10RM180,WMZ12A-10RM220,WMZ12A-12RM090,WMZ12A-12RM170,WMZ12A-15RM070,
WMZ12A-15RM130,WMZ12A-15RM145,WMZ12A-15RM160,WMZ12A-15RM200,WMZ12A-18RM150,
WMZ12A-20RM070,MZ212A-20RM085,MZ23-20RM100,MZ25-20RM145,WMZ12A-22RM100,
WMZ12A-22RM120,WMZ12A-22RM130,WMZ12A-22RM180,MZ25-25RM055,MZ25-25RM060,
WMZ12A-25RM065,MZ25-25RM085,MZ25-25RM100,MZ25-25RM120,WMZ12A-33RM110,WMZ12A-35RM060,
MZ23-35RM090,WMZ12A-39RM085,WMZ12A-39RM100,MZ23-40RM080,WMZ12A-47RM055,WMZ12A-47RM090,
WMZ12A-50RM060,MZ23-50RM070,MZ23-50RM075,WMZ12A-55RM060-MZ23-55RM070,WMZ12A-62RM050,
WMZ12A-62RM075,WMZ12A-68RM045,WMZ12A-68RM050,WMZ12A-68RM055,WMZ12A-68RM060,
WMZ12A-75RM045,WMZ12A-82RM040,WMZ12A-68RM060,WMZ12A-101M030,WMZ12A-101M035,
WMZ12A-101M040,WMZ12A-101M045,WMZ12A-101M050,WMZ12A-101M055,WMZ12A-121M030,
WMZ12A-121M035,WMZ12A-121M050,WMZ12A-151M025,WMZ12A-151M030,WMZ12A-151M035,
WMZ12A-151M040,WMZ12A-221M020,WMZ12A-221M025,WMZ12A-471M006,WMZ12A-681M005,
WMZ12A-102M004,WMZ12A-152M003,WMZ12A-222M002
