3)Encased double-element PTC thermistor for degaussing of colour TV-MZ73 series

PTC Thermistor TV Degausser-Reliable MZ73 | DXM

Why choose PTC Thermistor Z73 Series for Degaussing TV?

● High Efficiency: Reduces magnetic interference for clearer TV images.

● Robust Design: Durable Double-Element with high inrush current resistance.

● Low Residual Current: Reduces energy use and heat buildup, enhancing TV degaussing.

● Versatile Applications: Ideal for TVs, monitors, and CRT degaussing loops.

●Good Price, Environmentally Compliant: Offering great value and performance,RoHS-compliant.

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Encased Double-Element PTC Thermistor TV Degausser: MZ73 Series Overview

The MZ73 series encased double-element PTC thermistor TV degaussers are advanced components designed for color TV and monitor degaussing circuits. These thermistors effectively eliminate image distortion, abnormal colors, and irregular color plaques caused by stray magnetic fields. With high reliability and low residual current, the MZ73 series is ideal for modern electronic applications requiring efficient degaussing.

Item	Part No.	Rated Zero Power Resistor	Type	Function
1	MZ73-7R	7Ω	Black Encased Double-Element Type	Color TV Degausser
2	MZ73-9R	9Ω
3	MZ73-12R	12Ω
4	MZ73-14R	14Ω
5	MZ73-18R	18Ω
6	MZ73-27R	27Ω

Application and Benefits of MZ73 Series PTC Thermistor

Versatility in CRT Displays

The MZ73 series PTC thermistors are engineered for use in color TVs, monitors, and other CRT degaussing loops. These thermistors generate a strong alternating magnetic field, counteracting unwanted magnetic interference and ensuring optimal image quality.

Efficiency and Reliability

These thermistors feature a design that allows for a large inrush current initially, followed by a gradual reduction in current as the thermistor heats up. This ensures effective degaussing with minimal residual current, contributing to lower power consumption and enhanced overall efficiency.

Advantages of MZ73 Series Thermistor PTC

Large Inrush Current: Ensures effective initial degaussing.
Low Residual Current: Minimizes energy consumption.
High Withstand Voltage: Durable under high voltage conditions.
Compact Design: Suitable for PCB mounting, saving space.
Impact Resistance: Withstands shocks and vibrations.
RoHS Compliant: Environmentally friendly and safe.
Key Features of PTC Thermistor MZ73 TV degausser

Working Principle

Current-Time Characteristics

The MZ73 series operates based on its current-time characteristics. Initially, the PTC thermistor has low resistance, allowing a large initial current to flow through the degaussing coil. This generates a strong magnetic field necessary for degaussing. As the thermistor heats up, its resistance increases, reducing the current and the magnetic field gradually, achieving the desired degaussing effect.

PTC Thermistor TV Degausser Dimension(Unit:mm)

Refer to Figure 1 for the dimensions of the MZ73 PTC thermistor for degaussing.

PTC Thermistor MZ73 Dimensional Diagrams for Degaussing

Thermistor PTC Marking of Part Number for degaussing

Refer to Figure 2 for the part number marking of the MZ73 series PTC thermistors:

1. Series:PTC thermistor for degaussing tv, CRT degaussing loops in color TVs and monitors - MZ7 series
2. Type:
- 1: Soldering leads type
- 2: Encased type (single-element)
- 3: Encased type (double-element)
3. Rated Zero Power Resistance: 18R-18Ω, 9R-9Ω
4. Tolerance of Resistance: M-±20%, V-±25%, X-±30%/-20%
5. Max. Operating Voltage: 270VAC, 140VAC
6. Special Code:R (RoHS compliant)

Model Number of PTC Thermistor for Degaussing

Item	Part No.	Rated Zero Power Resistance R(N)(Ω)	Curie temperature T c (℃)	Max Operating Voltage Vmax (V)	Current Attenuation Characteristics			Condition
Item	Part No.	Rated Zero Power Resistance R(N)(Ω)	Curie temperature T c (℃)	Max Operating Voltage Vmax (V)	Initial Current (Ap-p)	After 3 Sec. (mAp-p)	After 60 Sec. (mArms)	Rated Vol. VN(V)	Load Resistance RL(Ω )
1	MZ73-4R5N140	4.5±30%	40:60	140	≥20	≤300	≤8	100,120	10
2	MZ73-7R0N270	7±30%	40:60	270	≥25	≤300	≤5	220	10
3	MZ73-9ROM270	9±20%	40:60	270	≥25	≤300	≤5	220	10
4	MZ73-10RM270	10±20%	40:60	270	≥25	≤240	≤5	220	10
5	MZ73-12RM270	12±20%	40:60	270	≥20	≤200	≤5	220	10
6	MZ73-14RM270	14±20%	40:60	270	≥20	≤200	≤3	220	10
7	MZ73-18RM270	18±20%	40:60	270	≥20	≤250	≤3	220	10
8	MZ73-27RM270	27±20%	40:60	270	≥20	≤240	≤3	220	10

Conclusion

The MZ73 series encased double-element PTC thermistor TV degausser is essential for achieving high-quality degaussing in CRT displays. With their robust design, efficient performance, and environmental compliance, these thermistors ensure that your products maintain optimal performance and longevity. Incorporating the MZ73 series thermistor PTC into your TV electronic designs enhances image quality while adhering to modern technical and environmental standards.

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